电气传动2011，Vol.41Issue(3)：19-23,5.
4象限级联型多电平变换器及其整流器控制
Quadrant Cascaded Multilevel Converter and Rectifier Control
孙炳海 1李永东 2王剑2
作者信息
- 1. 河南城建学院电气与电子工程系,河南,平顶山,467044
- 2. 清华大学电力系统及发电设备控制和仿真国家重点实验室,北京,100084
- 折叠
摘要
Abstract
In the power units of cascaded multilevel converters, replacing the diode rectifier with PWM rectifier can make the converter have the regenerative ability; using the leak inductance as the filter reactor of the PWM rectifier can reduce the volume and cost of the converter; the phase-shift secondary side of the transformer can eliminate the current harmonics caused by the single power unit, restraining the grid side harmonic especially the low order harmonic. In the control scheme PLL is employed to track the grid voltage's phase and frequency. The PIR control strategy of the PWM rectifier is used to maintain the DC-link voltage stable when feeding the single-phase inverter. The mathematic model of the PWM rectifier, its orientation method and the PIR current control strategy were introduced. The experiment results verify that the converter can achieve the regenerative ability when operating in the accelerating and decelerating of electrical machines.关键词
移相变压器/级联型多电平变换器/PWM整流器/PIR调节器Key words
phase-shifting transformer/ cascaded multilevel converter/ PWM rectifier/ PIR regulator分类
信息技术与安全科学引用本文复制引用
孙炳海,李永东,王剑..4象限级联型多电平变换器及其整流器控制[J].电气传动,2011,41(3):19-23,5.
