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。
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.
基于PWM整流技术，并通过控制逆变器开关的导通顺序调节逆变器直流侧的电容电压。
Based on the technique of PWM rectifier, the DC voltage of the inverter was adjusted by controlling the switch order of the switching elements.
该方法以电网电压为同步信号，在电网电压信号的过零点采样直流侧电容电压，并通过周期离散控制可以获得负荷电流有功分量。
The new control way can realize linear control for DC-bus voltage and get the fundamental component of the load current synchronously with a little of calculation.
应用PI控制使逆变器直流侧电容电压保持稳定，保证DSTATCOM良好的电流跟踪性能。
The voltage of the capacitance which is on the DC side of the inverter is stabilized by using PI control strategy, which ensures the DSTATCOM 's good current tracking performance.
直流侧电容电压平衡问题是三电平逆变器的研究重点之一，本文对其提出了一种改进的控制方法。
One of the research emphases of three-level inverter is the DC capacitor voltage balancing problem. In this paper this problem is studied thoroughly and a new method to solve it is proposed.
直流侧电容电压平衡问题是三电平逆变器的研究重点之一，本文对其提出了一种改进的控制方法。
One of the research emphases of three-level inverter is the DC capacitor voltage balancing problem. In this paper this problem is studied thoroughly and a new method to solve it is proposed.
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