C O N T E N T S
NOw POwER GRID FACING ThREAT
现在电网所面临的威胁
电网供电质量主要由供电电压偏差、电压波动及闪变、电网谐波含量、三相电压不平衡度、系统频率等电网供电质量深受影响。其中各种电力电子开关器件的大量应用和负载的频繁波动是两大干扰源，可导致以下影响：
~ 功率因数低，增加电网损耗，加大电能生产成本，降低生产效率。
~ 无功冲击引起电网电压降低、波动及闪变，严重时导致传动装置及保护装
置无法正常工作甚至停产。
~ 产生高次谐波电流，导致电网电压畸变。~ 导致保护及安全自动装置误动作。
~ 电容器组谐波电流放大，使电容器过负荷或过电压，甚至烧毁。~ 增加变压器损耗，引起变压器发热。
~ 导致电力设备发热，电机力矩不稳甚至损坏。~ 加速电力设备绝缘老化，绝缘易击穿。~ 干扰通讯信号。
~ 导致电网三相不平衡，产生负序电流使电机转子发生振动。
Now Power Grid Facing threat
The power support quality is mainly judged by supply voltage variation, voltage wave and flickering, grid harmonic, 3 phases voltage unbalance, system frequency variation and other parameters etc.. As the more and more non-linear electrical equipments are used in the grid, the grid’s power support quality is affected seriously. Various electrical and electronic switch units and the frequent wave of load are two main factors which cause below drawbacks:
~ Low power factors, increase grid exhaustion, increase power generation cost, decrease
production efficiency.
~ Grid voltage decrease, wave and flicker, causes faults on drive device and protection
device, even production ceased.
在电网中可发挥的作用
~ 调节系统电压~ 保持电压稳定~ 控制无功潮流~ 增加输送能力
~ 为AC-DC换流器提供无功功率~ 提高系统的静态和暂态稳定性~ 加强对低频振荡的阻尼
SVC 在用户侧可发挥的作用
~ 提高功率因数~ 减少无功潮流~ 降低电能损耗
~ 抑制电压波动和闪变
~ 减少非线性负荷引起的电压影响和谐波干扰~ 三相负荷平衡化
~ High order harmonic current, causes grid voltage distortion.~ Protection and safe auto device error operation.
~ Capacitors harmonic charging current increases, cause fusers overloaded or overvoltage,
even burned.
~ Increase transformers wear down, cause transformers heating up.
~ Cause equipment heating up, motor torque unstablized and even broken.~ Increase equipment’s aging, easy to make insulation broken.~ Disturb telecommunication signal.
~ Cause grid three phases unbalanced, generate negative order current to make rotors
trembling.
The Functions of SVC in Power Grid SVC
~ Adjust system voltage.~ Keep voltage stable.~ Control wattless wave.
~ Increase transmission ability.
~ Provide compensation for AC-DC converter.~ Improve system static stable.
~
Strengthen low frequency tremble damp.
The Functions of SVC for Users SVC
~ Increase power factors.~ Decrease wattless wave.~ Decrease power loss.
~ Restrain voltage fluctuate and flicker.
~ Decrease harmonic disturb from non-linear load.~ Make three phases balanced.
TCR wORkING ThEORy
TCR 型SVC 补偿原理
SVC 的主要功能是改善电压调整率，还可以补偿功率因数。系统、负载和补偿器的单相等效电路原理图如下图右上。其中U、R、X分别为系统的线电压、电阻、电抗。当电压变化⊿U＜＜U，并且R＜＜X时，反应系统电压与无功功率动态补偿关系的特性曲线如下图右下。系统的特性曲线可以用下式近似：
U =U 0⋅(1−
Q ∆U ∆Q =−或者0S C
式中，U 0－无功功率为零时的系统电压；S SC －系统短路容量。
可见，无功功率的变化引起系统电压成比例的变化。投入补偿器之后，系统供给的无功功率为负载和补偿无功功率之和，即 Q=QL +Qr 因此，当负载无功功率QL 变化时，如果补偿器的无功功率Q r 总能够弥补Q L 变化，从而使Q 维持不变，即⊿Q＝0，则⊿U=0，供电电压保持恒定，这就是对无功功率进行动态补偿的原理。图中示出了进行动态无功功率补偿，并使系统工作点保持在Q=QA ＝常数的情形。当Q=0时，即图中C 点时，实现了功率因数的完全补偿。
SVC Working Theory SVC
The main function of SVC is to improve voltage adjust rate, and compensate power factor. The single phase equal effect electrical circuit theoretical drawing of system, load and compensator is the picture at left. The U, R,X are repetitively the cable voltage, resistance, reactance. When △U＜＜U, R＜＜X, the characteristics curve of the relationship between reaction system voltage and wattless static compensation is the picture at right. The characteristic curve of system can be described as below:
U =U 0⋅(1−
Q Q U =U 0⋅(1− or
U O
Z=R+jX
系统电压U
system voltage U
Q
r Q L
U 0－system voltage when wattless power rate is zero；S SC －system short circuit capacity.
So we can see the change of wattles power causes change of system voltage. The system wattles power is the sum of load and compensation power Q=QL =Qr Therefore, when QL changes, if the Qr can compensate the change of QL , which means △Q＝0, and then △U=0, the power source keeps invariable. The picture shows the static wattless compensation which based on Q=QA .. When Q=0, which is the C point, the complete compensation has been realized.
补偿器
compensator
负载load
（a）
（b）
SVC应用领域
APPlICATIONS
轧机
区域变电站
轧机等大型三相对称负载频繁变动电机工作时会产生无功冲击,对电网造成在区域电网中，一般采用分级投切电容器组的方式来补偿系统无功改善功率如下影响。
因数，这种方式只能向系统提供容性无功，并且不能随负载的变化而实现快引起电网电压下降及电压波动，严重时使电气设备无法正常工作使功率因数速精确调节，在保证母线功率因数的同时，容易造成向系统倒送无功，抬高降低。
母线电压，危害用电设备及系统稳定性。
产生有害谐波，主要是5、7、11、13次为主的奇次谐波及其他高频谐波，九洲公司的静止无功补偿装置（SVC）可以很好地解决上述问题，能够快速使电网电压发生严重奇变。
准确地进行无功补偿，稳定母线电压，提高功率因数，彻底解决无功倒送问安装SVC可以很好的消除或削弱上述影响，保持母线电压平稳，消除谐波干题。安装新的SVC 系统时，可以充分利用原有的固定电容器组，只需增加晶扰，提高功率因数。
闸管相控电抗器（TCR）部分即可，投资节省，效果极佳，成为改善区域电Rolling Mill
网供电质量的最有效的方法。
The huge three phases type motor like rolling mill, frequently change symmetrical load to District Substation
cause wattless impact, can cause below harms.
In the district substation, it is usually apply classified cut type capacitors method to Cause grid voltage decrease and wave, when it is serious, equipment can’t work.compensate system and improve power factor, this method only can provide capacitor Generate harmful harmonic, mainly about add harmonic at 5, 7,11, 13, and other high wattless, and the adjustment is not accurate. When assure the power factor, at the same frequency harmonic, causes grid serious distortion.
time, cause reversed wattless power, increase bus voltage, influence equipment and To be equipped with SVC, can properly reduce above effects, keep bus voltage stable, system’s stabilization.
eliminate harmonic disturb, increase power factor.
The JZE’s SVC can properly solve above mentioned problems, can provide wattless compensation rapidly, stabilize bus voltage, improve power factor, completely solve the problem of reversed wattless power. When install the new SVC equipment, can sufficiently use original capacitor, just need to add TCR part, this method save cost, and effective.
长距离电力传输
电弧炉
电力目前正趋向于大功率电网，长距离输送电能，传输功率大，同时也要求电弧炉是冶金行业的重要生产设备，是典型的非线性无规律负荷。电弧炉接电力系统更加安全可靠。SVC可以明显提高电力系统输配电性能，这已在世入电网会对电网产生一系列不良影响。界范围内得到了广泛的证明。可以在电网的一处或多处适合的位置上安装导致电网严重三相不平衡，产生负序电流。
SVC，以达到如下目的：
产生谐波，普遍存在如2、4次偶次谐波与3、5、7次等奇次谐波共存情况，~ 稳定弱系统电压电压畸变加剧。~ 提高稳态输送容量存在严重的电压闪变。
~ 提高系统暂态稳定性功率因数低，生产效率低、损耗变大。
~ 增强电力系统阻尼解决上述问题的最有效方法是安装动态无功补偿装置（SVC）。九洲公司的~ 缓解次同步谐振SVC 系统响应时间小于10ms，完全可以快速补偿电弧炉的无功功率，稳定~ 预防电压不稳定
母线电压，抑制闪变。SVC 的分相补偿方式可以实现母线三相电压的平衡，~ 改善直流输电系统性能
同时滤波装置可以将有害高次谐波滤除。SVC 系统可以将功率因数提高到安装SVC系统成为我国目前电网安全高效稳定运行的重要技术保障。
0.92以上，降低损耗，提高生产效率。
Long Distance Power Transmission
Arc Furnace
The trend of power industry is turning to huge power grid, long distance transmission, Arc Furnace is important equipment in metallurgy industry, it is typical non-linear irregular and also requires higher safety and reliability. SVC can apparently improve the system’load. To connect it into grid, will cause a series of harmful effects.s ability of transmission, which has been proved world wide. To install SVC at one or more Cause grid’s three phases unbalanced, generate negative order current.sites in the grid, and fulfill below purpose：
Generate harmonic. The distortion of voltage gets worse.~ Stabilize week system voltage.
Serious voltage flicker.
~ Increase stable transmission capacity.Low power factor, production efficiency gets low, and waste gets more.
~ Increase transient stability.
The best way to solve above mentioned problem is to equip with SVC. The reaction time of ~ Strengthen power system damp.
JZE’s SVC is less than 10ms, can completely compensate the wattless power, stabilize ~ Relieve secondary synchronic harmonic.bus voltage, restrain flicker. SVC’s compensation method can realize bus three phase ~ Prevent unstable voltage.
voltage balance, and at the same time filtrate harmful high frequency harmonic. The power ~ Improve DC transmission systematical performance
factor can improve to 0.92, the waste is reduced, the efficiency is improved.
To install SVC has become a efficient and safe solution for China’s grid.
SySTEm
SVC系统组成
电力机车
电力机车采用单相交流供电，造成供电网严重的三相不平衡，并产生谐波和抚恤电流。而电力机车爬坡时，消耗大量的无功功率，下坡时消耗的无功功率很小，造成接触网电压波动大幅增加，功率因数严重降低。
安装静态无功补偿装置（SVC），采用分相补偿方式来平衡三相电网，并动态补偿无功功率，提高功率因数。
数字式控制系统
~ 结构：柜式结构
~ 作用：用于实时计算电网无功，控制晶闸管触发角的大小，进而控制补偿
无功量的大小。
Digital Control
Electrical Power Vehicle
The electrical power vehicle uses single phase AC power to cause serious three phase unbalance. When the vehicle goes up slope, it consumes vast wattless power, and consumes very little when goes down, this causes power factor seriously decrease. To install SVC, and apply separate phases compensate method to balance there phase grid, with static compensation of wattless power to improve power factor.
~ structure：cubicle type
~ functions：applied in grid’s wattless calculation, control thyristor touch off angle, then
to control volume of wattless compensation.
高压晶闸管阀组
自冷组架式结构，接受来自控制系统的信号，改变晶闸管触发角的大小，产生相应的无功补偿电流。高压晶闸管选用ABB 优质产品，性能良好。高位板集成自取能，触发监控，BOD 保护等多种功能。
High Voltage Thyristor Valves
Self cooling frame type, receiving signal from control system, change thyristor touch off angle, to create wattless compensating current. The thyristor valves are ABB products which have good quality and performance. And it has functions touch off monitoring, BOD protection etc.
提升机、风机、泵类等重工业负载补偿相控电抗器
~ 这类负载在起动工作过程中会对电网产生以下影响。~ 引起电网电压下降及波动。~ 功率因数降低。
~ 变频器整流器等传动装置会产生有害的高次谐波。
~ 安装SVC 可以很好地解决上述问题，通过快速无功补偿稳定网压，提高功
率因数，通过滤波装置滤除系统高次谐波。
~ 结构：空芯干式，上下双线圈，自然冷却。
~ 作用：通过晶闸管的电流流经补偿电抗器时，产生系统所需的感性无功，
用于平衡系统无功，保持稳定的母线电压和功率因数。
Compensation Hollow Reactor
Heavy Industry Load like Crane Machine,Wind Motor,Pump etc.
~ structure：Hollow dry type, up and down double loops, natural cooling.
~ functions：Generate required compensation, to keep bus voltage and power factor
stable.
~ These kinds of load can cause following effect to the grid.~ Grid voltage decreased and waving.~ Decrease power factor.
~ Harmful high order harmonics.
~ To install SVC can properly solve above problems. By fast wattless compensation, to
stabilize grid voltage, increase power factor, to filtrate system’s high order harmonics.
高次谐波滤波装置
由电抗器、电力电容器、电阻器（有高通通道时使用）三部分组成一个滤波通道，根据系统要求可以组成多个滤波通道，分别用于滤除相应的高次谐波。
~ 结构：电抗器为空芯干式，自然冷却。电力电容器为组架式安装，自然冷却。~ 作用：消除流经系统的高次谐波，向系统提供容性无功，提高功率因数。
High Order Harmonic Filtrating Device
Composed by reactor, power capacitor and resistor, can compose many filtrating channel, in order to filtrate high order harmonic.
~ structure：the reactor is hollow dry type, up and down double loops, natural cooling.
Power capacitor is framed installation, natural cooling.
~ Functions：eliminate high order harmonic, provide compensation, improve power
factor.
TCR TyPE SVC
TCR 型SVC
TCR 型SVC 的性能指标
~ 电压：6kV、10kV、27.5kV及35kV~ 容量：1Mvar～100Mvar。
TCR＋FC型SVC 系统组成
~ 控制器：控制柜＋监控柜
~ 晶闸管阀组：晶闸管＋高电位触发板＋静态均压电阻＋动态均压电阻、电
容＋BOD
~ 相控电抗器(空心)~ 滤波电抗器(空心)~ 固定电容器组~ 隔离开关
TCR type SVC
TCR type SVC performance index
~ Voltage：6kV、10kV、27.5kV and 35kV~ Capacity：1Mvar～100Mvar.
The composition of TCR+FC type SVC system
~ Controller：Control cabinet+monitoring cabinet
技术特点
如下图所示，TCR+FC型SVC装置主要由三部分构成：FC滤波器、TCR晶闸管控制电抗器和~ 控制系统采用基于DSP的全数字化控制器，应用瞬时无功理论进行编程控
控制保护系统。FC滤波器用于提供容性无功功率及谐波滤波，晶闸管控制电抗器 (TCR)用制，动态响应快、控制精度高、编程功能强，模块化设计，对几兆至几十兆于平衡系统中由于负载的波动所产生的感性无功功率。通过调节晶闸管触发角的大小，控制装置均可提供一体化的构造方式。
流过电抗器的电流达到控制无功功率的目的。根据负荷无功功率QL 的变化情况，改变电抗器~ 监控系统提供友好人机界面，实时显示系统工作状态。的无功功率QTCR (感性无功功率)。即不管负载的无功功率QL 如何变化，总要使二者之和为常~
冷却系统采用热管冷却方式，运行噪音低，运行可靠。
数，这个常数等于电容器组发出的容性无功功率QC 的数值，使取自电网的无功功率Q为常数~ 控制方式灵活，可实现三相同时控制、分相控制和三相平衡化等多种控制
或为0，即：Q=QC -(QL +QTCR )=常数(或0)，最终使得电网的功率因数保持恒定值，电压几乎方式。
不波动，从而达到无功补偿的目的，以抑制负载波动所造成的系统电压波动和闪变。控制保护系统通过采集到的供电母线电压及电流，在DSP控制器中计算出所需补偿的导纳值，从而Technical features
得出触发角的大小，并通过控制系统发出，改变晶闸管的触发角，来调整流过相控电抗器中的感性无功电流，实现了供电电网由于负载的变化引起的无功波动的动态跟踪调节。 ~ The adoption of control system is based on DSP full-digital controller and
applies instantaneous reactive theory to realize programming control, fast Shown as above figure, TCR+FC type SVC device is composed of FC filter, TCR thyristor control reactor dynamic response, high control precision, favorable programming function and control protection system. FC filter is used for providing capacitive reactive power and harmonic filter. and modular design. It can provide integrated structural mode for ten to Thyristor control reactor (TCR) is used for balancing inductive reactive power produced by load fluctuation several tens of mega of device.
in the system. Adjusting the size of thyristor trigger angle can realize the control of current flowing through ~ Monitoring system can provide friendly human-machine interface and
reactor and the control of reactive power. We can change reactive power QTCR of reactor (inductive reactive working state of real display system.
power) according to load reactive power QL . That is to say, no matter how to change load reactive power ~ The cooling system is taken use of heat tube cooling method with low
Q L , the sum of both must be a constant and it will be equal to the value of capacitive reactive power emitted operating noise and reliable operation.
by capacitor bank to keep reactive power Q from power grid a constant or zero, namely, Q=QC -(QL +QTCR ~ Flexible control method can realize multiple control modes including
=constant(or zero). Finally, power factor of power grid will remain constant value and it doesn’t have any three-phase simultaneous control, individual phase control and three-phase voltage fluctuation, and then realize reactive compensation in order to restrain system voltage fluctuation and balance etc.
flicker caused by load fluctuation. By acquired voltage and current from power supply bus, control protection system can calculate compensated admittance value in the DSP controller and then obtain the size of trigger TCR＋FC型SVC 系统相关型号说明
angle. Then it can be given out by control system to change thyristor trigger angle, further more adjust Introduction on related type for TCR+FC type SVC systeminductive reactive current flowing through phase control capacitor so as to realize dynamic tracking regulation
of reactive fluctuation caused by change of load in the power grid.
产品型号 Product type
PowerSolver TM －TCR－□/□－□
滤波回路支数Filter circuit count电压等级(kV)
Voltage grade (kV)可调容量(Mvar)
Adjustable capacity (Mvar)SVC类型：TCR型SVC type: TCR type注册商标
Registered trademark产品名称
Product name
柜体及阀组型号
Cabinet body and Valve block Type
JZESVC－TCR－□/□－□
F：阀组；K：控制柜；J：监控
F: Valve block; K: Control cabinet; J: Monitoring cabinet电压等级Voltage grade (kV)
(kV)单相阀组晶闸管数量
Capacity QL
控制保护系统
晶闸管控制电抗器容量QTCR
FC滤波器、容量QcControl protection system
The capacity of thyristor control reactor QTCR
FC filter & capacity Qc
The Quantities of Single phase valve block thyristor SVC 类型：TCR型TCR＋FC型SVC 系统工作原理SVC Type: TCR TypeThe working principle of TCR+FC 九洲电气SVC Type SVC system
JZE SVC
hIGh VOlTAGE POwER FIlTER
技术特点
~ 根据用户系统谐波构成含量和无功功率补偿容量进行量身定做，充分适应
用户需求。
~ 根据负荷不同投入情况，灵活设计分组，达到既补偿无功功率又能治理谐
波目的。
Technical Features
~ Be customized by user system's harmonic content and capacity of reacting power
compensation,fully adapted to user needs.
~ Be designed neatly based on the different condition of load inputted,to react power
compensation,and reduce harmonic at the same time.
高压电力滤波器(FC)产品型号High voltage power filter (FC) type
高压电力滤波器(FC)
PowerSolver TM －FC－□/□－□
滤波次数
Numbers of filter高压电力滤波器(FC)的性能指标
电压等级(kV)~Voltage grade(kV) 电压：6kV、10kV、27.5kV及35kV滤波器容量(Mvar)~ 容量：原则上容量不限。
Filter capacity(Mvar)滤波类型：FC 型高压电力滤波器(FC)的系统组成
Filter type：FC注册商标
~ 控制柜
Registered trademark
~ 滤波电抗器(空心)产品名称
~Product name
固定电容器组
~ 高压断路器或真空接触器
High voltage power filter(FC)
High voltage power filter (FC) performance index
~ Voltage：6kV、10kV、27.5kV and 35kV
~ Capacity：In general there isn’t any limit of capacity
The composition of High voltage power filter (FC) system
~ Control cabinet
~ Filter reactor (hollow)~ Fixed capacitors
~ High voltage breaker or vacuum contactor
FC 滤波器、容量Q c FC filter & capacity Q
c
22TRADITIONAl REACTIVE COmPENSATION
传统无功补偿HVC(MSC)
HVC(MSC)性能指标
~ 电压：6kV、10kV
~ 容量：几百kvar～5000kvar
HVC 型无功补偿系统组成
~ 控制柜：功能因数控制器＋继电控制~ 滤波电抗器(铁心)Capacity QL
控制保护系统TSC补偿回路
HVC补偿回路
Control protection TSC compensation circuit
HVC compensation circuit
~ 补偿电容器组
system
~ 断路器或真空接触器
TSC＋HVC型SVC 系统工作原理
The working principle of TSC+HVC Type SVC system
Traditional reactive compensation HVC(MSC)
如上图所示，TSC+HVC型SVC 装置主要由三部分构成：HVC 补偿器、TSC 补HVC (MSC) performance index
偿器和控制保护系统。HVC补偿器用于提供容性无功功率及谐波滤波，晶~ Voltage：6kV、10kV
闸管投切电容器 (TSC)用于平衡系统中由于负载的波动所产生的感性无功功~ Capacity：hundreds of kvar～5000kvar
率。通过控制晶闸管的导通与关断，来平衡变动的负荷产生的无功Q L 。最终The composition of HVC Type reactive compensation system
使得电网的功率因数保持恒定值，电压几乎不波动，从而达到无功补偿的目的，以抑制负载波动所造成的系统电压波动和闪变。控制保护系统通过采集~ Control cabinet：power factor controller+relay control到的供电母线电压及电流，在DSP 控制器中计算出所需补偿的导纳值，从而~ Filter reactor (core)
发出HVC1、HVC2及TSC 的投切信号，使相应补偿回路按控制器要求投入或~ Compensation capacitor bank切断， TSC的投切信号送入过零触发系统，在检测到阀组两端电压为零时发~ Breaker or vacuum contactor
出触发脉冲，使TSC 接入电网，接入时无浪涌电流，无操作过电压，可频繁投切，为使电网不过补，补偿系统通过控制器可随时发出TSC 投切信号来调整补偿的大小，从而控制向电网提供的补偿容量，实现无功补偿的自动调整功能。
As shown in above figure, TSC+HVC type SVC device is mainly composed of HVC compensator: TSC compensator and control protection system. HVC compensator is used for providing reactive power and harmonic filter, thyristor switched capacitor (TSC) is used for balancing inductive reactive power occurred by load fluctuation in the system. Controlling thyristor on / off can balance reactive power QL occurred by changeable load. Finally power factor of power grid will be kept a constant value, it almost haven’t voltage fluctuation and then realize reactive compensation in order to restrain fluctuation and flicker of system voltage caused by load fluctuation. Control protection system through collecting voltage and current of power supply bus can calculate compensated admittance value in the DSP controller and then give out switching signal of HVC1, HVC2 and TSC so as to ensure relative compensation circuit to input or cut off according to the requirement of controller, TSC switching signal are transported to zero-crossing trigger system and give out trigger pulse when voltage of both end of valve block is zero, and TSC will access to the power grid and in the process there isn’t any surge current, operating over voltage and can frequently switch in order to ensure without a over-compensation for power grid. Compensation system through controller can freely gives out TSC switching signal to adjust the size of compensation and then control compensation capacity providing for power grid in order to realize automatic adjusting function of reactive compensation.
23
TRADITIONAl REACTIVE COmPENSATION hVC(mSC)
如下图所示，HVC 型无功补偿装置主要由两部分构成：HVC 补偿器及功率因数控制器。HVC 补偿器用于提供容性无功功率及谐波滤波，功率因数控制器用于控制HVC 补偿回路的投切。通过采集到的供电母线的电压及电流，经过功率因数控制器的计算后，发出HVC1、HVC2及HVC3的投切信号，使相应补偿回路按功率因数控制器要求自动投入或切开，实现电网的自动投切补偿。Shown as right figure, HVC type reactive compensation device is mainly composed of HVC compensator and power factor controller. HVC compensator is used for providing capacitive reactive power and harmonic filter. Power factor controller is used for controlling the switching of HVC compensation circuit. The device can adopt voltage and current of power supply bus, and after calculation of power factor controller. It can give out the switching signals of HVC1, HVC2 and HVC3 to ensure related compensation to input or cut off automatically according to the requirement of power factor controller and then realize automatic switch compensation of power grid.
HVC 型无功补偿相关型号说明
Instruction on related type for HVC type reactive compensation产品型号 Product type
PowerSolver TM － HVC－□/□－□
HVC 回路支数HVC circuit count电压等级(kV)Voltage grade (kV)补偿容量(kvar)
Compensation capacity (kvar)补偿类型：HVC 型
Compensation type: HVC type注册商标
Registered trademark产品名称Product name
柜体型号 Cabinet type
JZEHVC －□/□－□
控制补偿回路数
Control compensation circuit count电压等级(kV)Voltage grade (kV)补偿总容量(kvar)
Total compensation capacity (kvar) 九洲电气HVC JZE HVC
HVC型无功补偿工作原理
The working principle of HVC Type
reactive compensation
2425
C O N T E N T S
NOw POwER GRID FACING ThREAT
现在电网所面临的威胁
电网供电质量主要由供电电压偏差、电压波动及闪变、电网谐波含量、三相电压不平衡度、系统频率等电网供电质量深受影响。其中各种电力电子开关器件的大量应用和负载的频繁波动是两大干扰源，可导致以下影响：
~ 功率因数低，增加电网损耗，加大电能生产成本，降低生产效率。
~ 无功冲击引起电网电压降低、波动及闪变，严重时导致传动装置及保护装
置无法正常工作甚至停产。
~ 产生高次谐波电流，导致电网电压畸变。~ 导致保护及安全自动装置误动作。
~ 电容器组谐波电流放大，使电容器过负荷或过电压，甚至烧毁。~ 增加变压器损耗，引起变压器发热。
~ 导致电力设备发热，电机力矩不稳甚至损坏。~ 加速电力设备绝缘老化，绝缘易击穿。~ 干扰通讯信号。
~ 导致电网三相不平衡，产生负序电流使电机转子发生振动。
Now Power Grid Facing threat
The power support quality is mainly judged by supply voltage variation, voltage wave and flickering, grid harmonic, 3 phases voltage unbalance, system frequency variation and other parameters etc.. As the more and more non-linear electrical equipments are used in the grid, the grid’s power support quality is affected seriously. Various electrical and electronic switch units and the frequent wave of load are two main factors which cause below drawbacks:
~ Low power factors, increase grid exhaustion, increase power generation cost, decrease
production efficiency.
~ Grid voltage decrease, wave and flicker, causes faults on drive device and protection
device, even production ceased.
在电网中可发挥的作用
~ 调节系统电压~ 保持电压稳定~ 控制无功潮流~ 增加输送能力
~ 为AC-DC换流器提供无功功率~ 提高系统的静态和暂态稳定性~ 加强对低频振荡的阻尼
SVC 在用户侧可发挥的作用
~ 提高功率因数~ 减少无功潮流~ 降低电能损耗
~ 抑制电压波动和闪变
~ 减少非线性负荷引起的电压影响和谐波干扰~ 三相负荷平衡化
~ High order harmonic current, causes grid voltage distortion.~ Protection and safe auto device error operation.
~ Capacitors harmonic charging current increases, cause fusers overloaded or overvoltage,
even burned.
~ Increase transformers wear down, cause transformers heating up.
~ Cause equipment heating up, motor torque unstablized and even broken.~ Increase equipment’s aging, easy to make insulation broken.~ Disturb telecommunication signal.
~ Cause grid three phases unbalanced, generate negative order current to make rotors
trembling.
The Functions of SVC in Power Grid SVC
~ Adjust system voltage.~ Keep voltage stable.~ Control wattless wave.
~ Increase transmission ability.
~ Provide compensation for AC-DC converter.~ Improve system static stable.
~
Strengthen low frequency tremble damp.
The Functions of SVC for Users SVC
~ Increase power factors.~ Decrease wattless wave.~ Decrease power loss.
~ Restrain voltage fluctuate and flicker.
~ Decrease harmonic disturb from non-linear load.~ Make three phases balanced.
TCR wORkING ThEORy
TCR 型SVC 补偿原理
SVC 的主要功能是改善电压调整率，还可以补偿功率因数。系统、负载和补偿器的单相等效电路原理图如下图右上。其中U、R、X分别为系统的线电压、电阻、电抗。当电压变化⊿U＜＜U，并且R＜＜X时，反应系统电压与无功功率动态补偿关系的特性曲线如下图右下。系统的特性曲线可以用下式近似：
U =U 0⋅(1−
Q ∆U ∆Q =−或者0S C
式中，U 0－无功功率为零时的系统电压；S SC －系统短路容量。
可见，无功功率的变化引起系统电压成比例的变化。投入补偿器之后，系统供给的无功功率为负载和补偿无功功率之和，即 Q=QL +Qr 因此，当负载无功功率QL 变化时，如果补偿器的无功功率Q r 总能够弥补Q L 变化，从而使Q 维持不变，即⊿Q＝0，则⊿U=0，供电电压保持恒定，这就是对无功功率进行动态补偿的原理。图中示出了进行动态无功功率补偿，并使系统工作点保持在Q=QA ＝常数的情形。当Q=0时，即图中C 点时，实现了功率因数的完全补偿。
SVC Working Theory SVC
The main function of SVC is to improve voltage adjust rate, and compensate power factor. The single phase equal effect electrical circuit theoretical drawing of system, load and compensator is the picture at left. The U, R,X are repetitively the cable voltage, resistance, reactance. When △U＜＜U, R＜＜X, the characteristics curve of the relationship between reaction system voltage and wattless static compensation is the picture at right. The characteristic curve of system can be described as below:
U =U 0⋅(1−
Q Q U =U 0⋅(1− or
U O
Z=R+jX
系统电压U
system voltage U
Q
r Q L
U 0－system voltage when wattless power rate is zero；S SC －system short circuit capacity.
So we can see the change of wattles power causes change of system voltage. The system wattles power is the sum of load and compensation power Q=QL =Qr Therefore, when QL changes, if the Qr can compensate the change of QL , which means △Q＝0, and then △U=0, the power source keeps invariable. The picture shows the static wattless compensation which based on Q=QA .. When Q=0, which is the C point, the complete compensation has been realized.
补偿器
compensator
负载load
（a）
（b）
SVC应用领域
APPlICATIONS
轧机
区域变电站
轧机等大型三相对称负载频繁变动电机工作时会产生无功冲击,对电网造成在区域电网中，一般采用分级投切电容器组的方式来补偿系统无功改善功率如下影响。
因数，这种方式只能向系统提供容性无功，并且不能随负载的变化而实现快引起电网电压下降及电压波动，严重时使电气设备无法正常工作使功率因数速精确调节，在保证母线功率因数的同时，容易造成向系统倒送无功，抬高降低。
母线电压，危害用电设备及系统稳定性。
产生有害谐波，主要是5、7、11、13次为主的奇次谐波及其他高频谐波，九洲公司的静止无功补偿装置（SVC）可以很好地解决上述问题，能够快速使电网电压发生严重奇变。
准确地进行无功补偿，稳定母线电压，提高功率因数，彻底解决无功倒送问安装SVC可以很好的消除或削弱上述影响，保持母线电压平稳，消除谐波干题。安装新的SVC 系统时，可以充分利用原有的固定电容器组，只需增加晶扰，提高功率因数。
闸管相控电抗器（TCR）部分即可，投资节省，效果极佳，成为改善区域电Rolling Mill
网供电质量的最有效的方法。
The huge three phases type motor like rolling mill, frequently change symmetrical load to District Substation
cause wattless impact, can cause below harms.
In the district substation, it is usually apply classified cut type capacitors method to Cause grid voltage decrease and wave, when it is serious, equipment can’t work.compensate system and improve power factor, this method only can provide capacitor Generate harmful harmonic, mainly about add harmonic at 5, 7,11, 13, and other high wattless, and the adjustment is not accurate. When assure the power factor, at the same frequency harmonic, causes grid serious distortion.
time, cause reversed wattless power, increase bus voltage, influence equipment and To be equipped with SVC, can properly reduce above effects, keep bus voltage stable, system’s stabilization.
eliminate harmonic disturb, increase power factor.
The JZE’s SVC can properly solve above mentioned problems, can provide wattless compensation rapidly, stabilize bus voltage, improve power factor, completely solve the problem of reversed wattless power. When install the new SVC equipment, can sufficiently use original capacitor, just need to add TCR part, this method save cost, and effective.
长距离电力传输
电弧炉
电力目前正趋向于大功率电网，长距离输送电能，传输功率大，同时也要求电弧炉是冶金行业的重要生产设备，是典型的非线性无规律负荷。电弧炉接电力系统更加安全可靠。SVC可以明显提高电力系统输配电性能，这已在世入电网会对电网产生一系列不良影响。界范围内得到了广泛的证明。可以在电网的一处或多处适合的位置上安装导致电网严重三相不平衡，产生负序电流。
SVC，以达到如下目的：
产生谐波，普遍存在如2、4次偶次谐波与3、5、7次等奇次谐波共存情况，~ 稳定弱系统电压电压畸变加剧。~ 提高稳态输送容量存在严重的电压闪变。
~ 提高系统暂态稳定性功率因数低，生产效率低、损耗变大。
~ 增强电力系统阻尼解决上述问题的最有效方法是安装动态无功补偿装置（SVC）。九洲公司的~ 缓解次同步谐振SVC 系统响应时间小于10ms，完全可以快速补偿电弧炉的无功功率，稳定~ 预防电压不稳定
母线电压，抑制闪变。SVC 的分相补偿方式可以实现母线三相电压的平衡，~ 改善直流输电系统性能
同时滤波装置可以将有害高次谐波滤除。SVC 系统可以将功率因数提高到安装SVC系统成为我国目前电网安全高效稳定运行的重要技术保障。
0.92以上，降低损耗，提高生产效率。
Long Distance Power Transmission
Arc Furnace
The trend of power industry is turning to huge power grid, long distance transmission, Arc Furnace is important equipment in metallurgy industry, it is typical non-linear irregular and also requires higher safety and reliability. SVC can apparently improve the system’load. To connect it into grid, will cause a series of harmful effects.s ability of transmission, which has been proved world wide. To install SVC at one or more Cause grid’s three phases unbalanced, generate negative order current.sites in the grid, and fulfill below purpose：
Generate harmonic. The distortion of voltage gets worse.~ Stabilize week system voltage.
Serious voltage flicker.
~ Increase stable transmission capacity.Low power factor, production efficiency gets low, and waste gets more.
~ Increase transient stability.
The best way to solve above mentioned problem is to equip with SVC. The reaction time of ~ Strengthen power system damp.
JZE’s SVC is less than 10ms, can completely compensate the wattless power, stabilize ~ Relieve secondary synchronic harmonic.bus voltage, restrain flicker. SVC’s compensation method can realize bus three phase ~ Prevent unstable voltage.
voltage balance, and at the same time filtrate harmful high frequency harmonic. The power ~ Improve DC transmission systematical performance
factor can improve to 0.92, the waste is reduced, the efficiency is improved.
To install SVC has become a efficient and safe solution for China’s grid.
SySTEm
SVC系统组成
电力机车
电力机车采用单相交流供电，造成供电网严重的三相不平衡，并产生谐波和抚恤电流。而电力机车爬坡时，消耗大量的无功功率，下坡时消耗的无功功率很小，造成接触网电压波动大幅增加，功率因数严重降低。
安装静态无功补偿装置（SVC），采用分相补偿方式来平衡三相电网，并动态补偿无功功率，提高功率因数。
数字式控制系统
~ 结构：柜式结构
~ 作用：用于实时计算电网无功，控制晶闸管触发角的大小，进而控制补偿
无功量的大小。
Digital Control
Electrical Power Vehicle
The electrical power vehicle uses single phase AC power to cause serious three phase unbalance. When the vehicle goes up slope, it consumes vast wattless power, and consumes very little when goes down, this causes power factor seriously decrease. To install SVC, and apply separate phases compensate method to balance there phase grid, with static compensation of wattless power to improve power factor.
~ structure：cubicle type
~ functions：applied in grid’s wattless calculation, control thyristor touch off angle, then
to control volume of wattless compensation.
高压晶闸管阀组
自冷组架式结构，接受来自控制系统的信号，改变晶闸管触发角的大小，产生相应的无功补偿电流。高压晶闸管选用ABB 优质产品，性能良好。高位板集成自取能，触发监控，BOD 保护等多种功能。
High Voltage Thyristor Valves
Self cooling frame type, receiving signal from control system, change thyristor touch off angle, to create wattless compensating current. The thyristor valves are ABB products which have good quality and performance. And it has functions touch off monitoring, BOD protection etc.
提升机、风机、泵类等重工业负载补偿相控电抗器
~ 这类负载在起动工作过程中会对电网产生以下影响。~ 引起电网电压下降及波动。~ 功率因数降低。
~ 变频器整流器等传动装置会产生有害的高次谐波。
~ 安装SVC 可以很好地解决上述问题，通过快速无功补偿稳定网压，提高功
率因数，通过滤波装置滤除系统高次谐波。
~ 结构：空芯干式，上下双线圈，自然冷却。
~ 作用：通过晶闸管的电流流经补偿电抗器时，产生系统所需的感性无功，
用于平衡系统无功，保持稳定的母线电压和功率因数。
Compensation Hollow Reactor
Heavy Industry Load like Crane Machine,Wind Motor,Pump etc.
~ structure：Hollow dry type, up and down double loops, natural cooling.
~ functions：Generate required compensation, to keep bus voltage and power factor
stable.
~ These kinds of load can cause following effect to the grid.~ Grid voltage decreased and waving.~ Decrease power factor.
~ Harmful high order harmonics.
~ To install SVC can properly solve above problems. By fast wattless compensation, to
stabilize grid voltage, increase power factor, to filtrate system’s high order harmonics.
高次谐波滤波装置
由电抗器、电力电容器、电阻器（有高通通道时使用）三部分组成一个滤波通道，根据系统要求可以组成多个滤波通道，分别用于滤除相应的高次谐波。
~ 结构：电抗器为空芯干式，自然冷却。电力电容器为组架式安装，自然冷却。~ 作用：消除流经系统的高次谐波，向系统提供容性无功，提高功率因数。
High Order Harmonic Filtrating Device
Composed by reactor, power capacitor and resistor, can compose many filtrating channel, in order to filtrate high order harmonic.
~ structure：the reactor is hollow dry type, up and down double loops, natural cooling.
Power capacitor is framed installation, natural cooling.
~ Functions：eliminate high order harmonic, provide compensation, improve power
factor.
TCR TyPE SVC
TCR 型SVC
TCR 型SVC 的性能指标
~ 电压：6kV、10kV、27.5kV及35kV~ 容量：1Mvar～100Mvar。
TCR＋FC型SVC 系统组成
~ 控制器：控制柜＋监控柜
~ 晶闸管阀组：晶闸管＋高电位触发板＋静态均压电阻＋动态均压电阻、电
容＋BOD
~ 相控电抗器(空心)~ 滤波电抗器(空心)~ 固定电容器组~ 隔离开关
TCR type SVC
TCR type SVC performance index
~ Voltage：6kV、10kV、27.5kV and 35kV~ Capacity：1Mvar～100Mvar.
The composition of TCR+FC type SVC system
~ Controller：Control cabinet+monitoring cabinet
技术特点
如下图所示，TCR+FC型SVC装置主要由三部分构成：FC滤波器、TCR晶闸管控制电抗器和~ 控制系统采用基于DSP的全数字化控制器，应用瞬时无功理论进行编程控
控制保护系统。FC滤波器用于提供容性无功功率及谐波滤波，晶闸管控制电抗器 (TCR)用制，动态响应快、控制精度高、编程功能强，模块化设计，对几兆至几十兆于平衡系统中由于负载的波动所产生的感性无功功率。通过调节晶闸管触发角的大小，控制装置均可提供一体化的构造方式。
流过电抗器的电流达到控制无功功率的目的。根据负荷无功功率QL 的变化情况，改变电抗器~ 监控系统提供友好人机界面，实时显示系统工作状态。的无功功率QTCR (感性无功功率)。即不管负载的无功功率QL 如何变化，总要使二者之和为常~
冷却系统采用热管冷却方式，运行噪音低，运行可靠。
数，这个常数等于电容器组发出的容性无功功率QC 的数值，使取自电网的无功功率Q为常数~ 控制方式灵活，可实现三相同时控制、分相控制和三相平衡化等多种控制
或为0，即：Q=QC -(QL +QTCR )=常数(或0)，最终使得电网的功率因数保持恒定值，电压几乎方式。
不波动，从而达到无功补偿的目的，以抑制负载波动所造成的系统电压波动和闪变。控制保护系统通过采集到的供电母线电压及电流，在DSP控制器中计算出所需补偿的导纳值，从而Technical features
得出触发角的大小，并通过控制系统发出，改变晶闸管的触发角，来调整流过相控电抗器中的感性无功电流，实现了供电电网由于负载的变化引起的无功波动的动态跟踪调节。 ~ The adoption of control system is based on DSP full-digital controller and
applies instantaneous reactive theory to realize programming control, fast Shown as above figure, TCR+FC type SVC device is composed of FC filter, TCR thyristor control reactor dynamic response, high control precision, favorable programming function and control protection system. FC filter is used for providing capacitive reactive power and harmonic filter. and modular design. It can provide integrated structural mode for ten to Thyristor control reactor (TCR) is used for balancing inductive reactive power produced by load fluctuation several tens of mega of device.
in the system. Adjusting the size of thyristor trigger angle can realize the control of current flowing through ~ Monitoring system can provide friendly human-machine interface and
reactor and the control of reactive power. We can change reactive power QTCR of reactor (inductive reactive working state of real display system.
power) according to load reactive power QL . That is to say, no matter how to change load reactive power ~ The cooling system is taken use of heat tube cooling method with low
Q L , the sum of both must be a constant and it will be equal to the value of capacitive reactive power emitted operating noise and reliable operation.
by capacitor bank to keep reactive power Q from power grid a constant or zero, namely, Q=QC -(QL +QTCR ~ Flexible control method can realize multiple control modes including
=constant(or zero). Finally, power factor of power grid will remain constant value and it doesn’t have any three-phase simultaneous control, individual phase control and three-phase voltage fluctuation, and then realize reactive compensation in order to restrain system voltage fluctuation and balance etc.
flicker caused by load fluctuation. By acquired voltage and current from power supply bus, control protection system can calculate compensated admittance value in the DSP controller and then obtain the size of trigger TCR＋FC型SVC 系统相关型号说明
angle. Then it can be given out by control system to change thyristor trigger angle, further more adjust Introduction on related type for TCR+FC type SVC systeminductive reactive current flowing through phase control capacitor so as to realize dynamic tracking regulation
of reactive fluctuation caused by change of load in the power grid.
产品型号 Product type
PowerSolver TM －TCR－□/□－□
滤波回路支数Filter circuit count电压等级(kV)
Voltage grade (kV)可调容量(Mvar)
Adjustable capacity (Mvar)SVC类型：TCR型SVC type: TCR type注册商标
Registered trademark产品名称
Product name
柜体及阀组型号
Cabinet body and Valve block Type
JZESVC－TCR－□/□－□
F：阀组；K：控制柜；J：监控
F: Valve block; K: Control cabinet; J: Monitoring cabinet电压等级Voltage grade (kV)
(kV)单相阀组晶闸管数量
Capacity QL
控制保护系统
晶闸管控制电抗器容量QTCR
FC滤波器、容量QcControl protection system
The capacity of thyristor control reactor QTCR
FC filter & capacity Qc
The Quantities of Single phase valve block thyristor SVC 类型：TCR型TCR＋FC型SVC 系统工作原理SVC Type: TCR TypeThe working principle of TCR+FC 九洲电气SVC Type SVC system
JZE SVC
hIGh VOlTAGE POwER FIlTER
技术特点
~ 根据用户系统谐波构成含量和无功功率补偿容量进行量身定做，充分适应
用户需求。
~ 根据负荷不同投入情况，灵活设计分组，达到既补偿无功功率又能治理谐
波目的。
Technical Features
~ Be customized by user system's harmonic content and capacity of reacting power
compensation,fully adapted to user needs.
~ Be designed neatly based on the different condition of load inputted,to react power
compensation,and reduce harmonic at the same time.
高压电力滤波器(FC)产品型号High voltage power filter (FC) type
高压电力滤波器(FC)
PowerSolver TM －FC－□/□－□
滤波次数
Numbers of filter高压电力滤波器(FC)的性能指标
电压等级(kV)~Voltage grade(kV) 电压：6kV、10kV、27.5kV及35kV滤波器容量(Mvar)~ 容量：原则上容量不限。
Filter capacity(Mvar)滤波类型：FC 型高压电力滤波器(FC)的系统组成
Filter type：FC注册商标
~ 控制柜
Registered trademark
~ 滤波电抗器(空心)产品名称
~Product name
固定电容器组
~ 高压断路器或真空接触器
High voltage power filter(FC)
High voltage power filter (FC) performance index
~ Voltage：6kV、10kV、27.5kV and 35kV
~ Capacity：In general there isn’t any limit of capacity
The composition of High voltage power filter (FC) system
~ Control cabinet
~ Filter reactor (hollow)~ Fixed capacitors
~ High voltage breaker or vacuum contactor
FC 滤波器、容量Q c FC filter & capacity Q
c
22TRADITIONAl REACTIVE COmPENSATION
传统无功补偿HVC(MSC)
HVC(MSC)性能指标
~ 电压：6kV、10kV
~ 容量：几百kvar～5000kvar
HVC 型无功补偿系统组成
~ 控制柜：功能因数控制器＋继电控制~ 滤波电抗器(铁心)Capacity QL
控制保护系统TSC补偿回路
HVC补偿回路
Control protection TSC compensation circuit
HVC compensation circuit
~ 补偿电容器组
system
~ 断路器或真空接触器
TSC＋HVC型SVC 系统工作原理
The working principle of TSC+HVC Type SVC system
Traditional reactive compensation HVC(MSC)
如上图所示，TSC+HVC型SVC 装置主要由三部分构成：HVC 补偿器、TSC 补HVC (MSC) performance index
偿器和控制保护系统。HVC补偿器用于提供容性无功功率及谐波滤波，晶~ Voltage：6kV、10kV
闸管投切电容器 (TSC)用于平衡系统中由于负载的波动所产生的感性无功功~ Capacity：hundreds of kvar～5000kvar
率。通过控制晶闸管的导通与关断，来平衡变动的负荷产生的无功Q L 。最终The composition of HVC Type reactive compensation system
使得电网的功率因数保持恒定值，电压几乎不波动，从而达到无功补偿的目的，以抑制负载波动所造成的系统电压波动和闪变。控制保护系统通过采集~ Control cabinet：power factor controller+relay control到的供电母线电压及电流，在DSP 控制器中计算出所需补偿的导纳值，从而~ Filter reactor (core)
发出HVC1、HVC2及TSC 的投切信号，使相应补偿回路按控制器要求投入或~ Compensation capacitor bank切断， TSC的投切信号送入过零触发系统，在检测到阀组两端电压为零时发~ Breaker or vacuum contactor
出触发脉冲，使TSC 接入电网，接入时无浪涌电流，无操作过电压，可频繁投切，为使电网不过补，补偿系统通过控制器可随时发出TSC 投切信号来调整补偿的大小，从而控制向电网提供的补偿容量，实现无功补偿的自动调整功能。
As shown in above figure, TSC+HVC type SVC device is mainly composed of HVC compensator: TSC compensator and control protection system. HVC compensator is used for providing reactive power and harmonic filter, thyristor switched capacitor (TSC) is used for balancing inductive reactive power occurred by load fluctuation in the system. Controlling thyristor on / off can balance reactive power QL occurred by changeable load. Finally power factor of power grid will be kept a constant value, it almost haven’t voltage fluctuation and then realize reactive compensation in order to restrain fluctuation and flicker of system voltage caused by load fluctuation. Control protection system through collecting voltage and current of power supply bus can calculate compensated admittance value in the DSP controller and then give out switching signal of HVC1, HVC2 and TSC so as to ensure relative compensation circuit to input or cut off according to the requirement of controller, TSC switching signal are transported to zero-crossing trigger system and give out trigger pulse when voltage of both end of valve block is zero, and TSC will access to the power grid and in the process there isn’t any surge current, operating over voltage and can frequently switch in order to ensure without a over-compensation for power grid. Compensation system through controller can freely gives out TSC switching signal to adjust the size of compensation and then control compensation capacity providing for power grid in order to realize automatic adjusting function of reactive compensation.
23
TRADITIONAl REACTIVE COmPENSATION hVC(mSC)
如下图所示，HVC 型无功补偿装置主要由两部分构成：HVC 补偿器及功率因数控制器。HVC 补偿器用于提供容性无功功率及谐波滤波，功率因数控制器用于控制HVC 补偿回路的投切。通过采集到的供电母线的电压及电流，经过功率因数控制器的计算后，发出HVC1、HVC2及HVC3的投切信号，使相应补偿回路按功率因数控制器要求自动投入或切开，实现电网的自动投切补偿。Shown as right figure, HVC type reactive compensation device is mainly composed of HVC compensator and power factor controller. HVC compensator is used for providing capacitive reactive power and harmonic filter. Power factor controller is used for controlling the switching of HVC compensation circuit. The device can adopt voltage and current of power supply bus, and after calculation of power factor controller. It can give out the switching signals of HVC1, HVC2 and HVC3 to ensure related compensation to input or cut off automatically according to the requirement of power factor controller and then realize automatic switch compensation of power grid.
HVC 型无功补偿相关型号说明
Instruction on related type for HVC type reactive compensation产品型号 Product type
PowerSolver TM － HVC－□/□－□
HVC 回路支数HVC circuit count电压等级(kV)Voltage grade (kV)补偿容量(kvar)
Compensation capacity (kvar)补偿类型：HVC 型
Compensation type: HVC type注册商标
Registered trademark产品名称Product name
柜体型号 Cabinet type
JZEHVC －□/□－□
控制补偿回路数
Control compensation circuit count电压等级(kV)Voltage grade (kV)补偿总容量(kvar)
Total compensation capacity (kvar) 九洲电气HVC JZE HVC
HVC型无功补偿工作原理
The working principle of HVC Type
reactive compensation
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