静止无功补偿器在高压直流系统中的应用

在高压直流系统的逆变站中，可以有效地应用静止无功补偿器（ＳＶＣ）进行无功补偿。本应用节点分析的方法，对ＳＶＣ的稳态特性进行了研究，得到了稳态时的补偿容量及各节点电压的稳态值。在动态特性方面，着重分析研究了在逆变站交流母线电压波动和三种典型故障情况下，ＳＶＣ的补偿容量及相应参数，并就抑制电压振荡，提高交流系统暂态电压稳定性问题，与采用并联电容器组的无功补偿方式进行了比较，其结果显示出本方案的优越性

APPLICATION OF SVC IN HVDC SYSTEM

In the inverter station of HVDC system, SVCcan be successfully used for reactive power compensation. Amethod of using SVC in HVDC system is proposed in thispaper, and its feasibility is also proved. Investigating thesteady state performance of SVC by node analysis method,the compensation capacity of SVC and the steady state values of voltage at each node are calculated. Then by means ofdynamic simulation, the dynamic performance of SVC usedin HVDC system is researched. The compensation capacityand the corresponding parameters of SVC for the voltagefluctuation on Ac bus of inverter station and for three typical faults are emphatically analyzed. To verify this method,the comparison of SVC with shunt capacitor sets in thefields of restraining voltage fluctuation and improving thetransient voltage stability of AC system is carried out. Theresult of comparison reveals that this SVC compensation isof remarkable advantage.