风力发电变流系统多重化升压斩波器控制方法研究  

Research on the Control Method of Multiple Boost Converter Based on Wind Energy Conversion System

作　　者：苏晓东[1] 梁晖[1] 

机构地区：[1]北京交通大学电气工程学院,北京100044

出　　处：《电气传动》2008年第8期36-39,共4页Electric Drive

摘　　要：以永磁同步风力发电机组变流系统为背景,研究了交-直-交变流系统中间直流环节——多重升压斩波器的控制方法。升压斩波器采用电流闭环加前馈的复合控制方法,通过对主电路及控制电路进行PSpice仿真,以及基于DSP芯片TMS320LF2407A对单重、三重升压斩波器控制进行实验,在带负载的情况下进行了开环、闭环和前馈控制调试,实验最终结论说明三重升压斩波器具有减少谐波、平滑电流等优势,前馈控制能够有效地抑制整流输出电压带来的低频纹波,减小了电流脉动。Background of the wind energy conversion system with permanent-magnet synchronous wind power generator, the DC link of AC - DC - AC power converter multiple boost converter was researched. A multiple boost converter controlled with closed current and feed-forward compound strategy. On the basis of these designs the main circuit and the control circuit were simulated using PSpice. At the mean time, the experiment based on DSP included comparison between boost circuit and three-multiple boost circuit, the comparison between open control,close control and feed-forward of the circuit. The experimental results verify that multiple boost converter has the advantage of reducing harmonic wave and smoothing current. And the controlling method of feed-forward could bate the low frequency ripple from the output of the rectifier.

关 键 词：升压斩波器 多重化 电流闭环 前馈控制 数字PI调节器 

分 类 号：TM614[电气工程—电力系统及自动化]