基于PI控制的电力电子负载  

Power Electronic Load Based on PI Control

作　　者：黄朝霞[1] 邹云屏[1] 王成智[1] 

机构地区：[1]华中科技大学电气与电子工程学院,武汉430074

出　　处：《高电压技术》2009年第6期1451-1456,共6页High Voltage Engineering

基　　金：国家自然科学基金(50777026);湖北省自然科学基金(2007ABA051)~~

摘　　要：为给大功率电力电子负载(PEL)工程化设计与应用提供经验,研究了一种结构简单的PEL用以进行电源出厂实验并给出了它用于直流电源和各种三相电源的测试控制方式和连接方案。以建立的数学模型为基础设计简便、可靠的控制方案;以控制理论朱利稳定判据、动态系数分析法、频域分析法为基础从定性和定量两个方面给出参数对系统稳定性和精度的影响。搭建10kVA电力电子负载样机并进行了实验和仿真。结果证明方案和分析正确,其分析结论为和理论同样适用于以PWMVSR为构件的APF、STATCOM、UPQC、UPFC等电力电子设备。To test the power sources, a power electronic load （PEL）is researched in this paper. The connection scheme of the PEL and the control scheme of the PEL which bases on mathematical model to test the DC power sources and various three-phase AC power sources are presented. The effect of the whole system performance by parameter is analyzed in quality and in quantity based on control theory which includes Jury test, Dynamic Factor Analysis and Frequency Analysis. A 10 kVA prototype is established to test AC power sources. The simulation and experimental results are given to verify the proposed analysis and control schemes. The analysis conclusion provides the experience for the power PEL engineering in the design and applications. Its theories analysis also can be applicable to APF, STATCOM, UPQC, UPFC and so on, which base on the PWM VSR.

关 键 词：电力电子负载 控制方案 数学模型 朱利判据 动态系数分析法 频率分析 

分 类 号：TM461[电气工程—电器]