采用全控型器件IGBT的静止无功发生器SVG是柔性交流输电(FACTS)技术的研究对象之一。SVG正常工作时,可以视为与电网并联的一个幅值和相位均可控,频率与电网频率一致的可控电压源。电力系统中的部分负载无功功率变化频繁,造成了电网电压波动,降低电能质量。控制电压稳定的重要方法之一就是对无功功率进行补偿。本文仿真的SVG可以对电网中的无功负荷进行动态实时补偿。与具有相近容量的其他补偿装置比 SVG, a fully-controlled IGBT, is one of the research subjects of FACTS technology. When SVG is working normally, it can be considered as a controllable voltage source with amplitude and phase controllable in parallel with the power grid and with the same frequency and grid frequency. Part of the load power system reactive power changes frequently, resulting in grid voltage fluctuations, reducing power quality. One of the important ways to control the voltage stability is to compensate the reactive power. The SVG simulation in this paper can dynamically compensate the reactive load in the power grid in real time. Compared with other compensation devices with similar capacity