Three-phaseautotransformer with pure resistor load is chosed for the simulation experiments.
选用三相自耦式变压器，纯电阻负载为对象进行模拟实验。
2
A novel three-phase VSG is built by three-phaseautotransformer and IGBT based bidirectional switch, can easily control the types of voltage sags, sag duration, sag depth and sag phase.