摘要
介绍了一种多级 H桥并联变换器 ,通过一定的控制方式使每个 H桥变压器副边产生的波形叠加成18阶梯波 ,经滤波后可得到比较标准的正弦波。分析了系统的电路原理、幅值控制、相角控制及功率因数控制的实现方式。利用 PSPICE对系统进行了仿真 ,给出了仿真波形和分析 ;利用 DSP( TMS3 2 0 F2 40 )和 PIC为控制芯片完成了系统设计并进行了功率实验 。
The paper introduces a multi-level H-bridge converter, which produces 18-step waveform according to required control method. The standard sine waveform can be gotten after passing through the filter. It analyzes the circuit principle of the system, amplitude control method, phase control method and realization of the power factor control. In addition, the system realization is offered in the paper, and DSP(TMS320F240) and PIC are used as the control chips. Finally, the simulation waveforms made by PSPICE and experimental waveforms are supplied in order to explain the work principle of the system.
出处
《电气传动》
北大核心
2004年第5期18-20,共3页
Electric Drive
