The detecting techniques of harmful currents, the modulation methods of novel UPFC and the balancing control of capacitors voltage on DC link are studied thoroughly.
对有害电流检测方法、新型UPFC的变换器的调制方法、新型UPFC直流侧电容电压的平衡控制方法等进行了深入研究。
Using this resonance controller to take a closed loop control to selected harmonic voltage makes DVR with a function of harmonic voltage compensation, which has little influence on DC link voltage.
应用这种静止坐标下的谐振控制器对指定次数的谐波电压进行闭环控制，使DVR具备补偿谐波电压的功能，而对基本DVR的电压凹陷补偿性能的影响很小。
Using this resonance controller to take a closed loop control to selected harmonic voltage makes DVR with a function of harmonic voltage compensation, which has little influence on DC link voltage.
应用这种静止坐标下的谐振控制器对指定次数的谐波电压进行闭环控制，使DVR具备补偿谐波电压的功能，而对基本DVR的电压凹陷补偿性能的影响很小。
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