基于最小能量法的DVR控制算法  

DVR control algorithm based on minimal energy

作　　者：葛长宏[1] 程浩忠[1] 王霄桦[1] 钟明明[1] 陈国栋 缪勇 董祖毅 

机构地区：[1]上海交通大学电气工程系,上海200240 [2]上海输配电股份有限公司技术中心,上海200050

出　　处：《电力自动化设备》2009年第1期70-74,共5页Electric Power Automation Equipment

基　　金：上海市重点产业技术产学研联合攻关项目(沪产学研06-11)~~

摘　　要：考虑动态电压恢复器(DVR)在不同的补偿方式下对装置的能量要求不同,针对如何实现DVR最小能量补偿进行研究,将电压补偿情况分为7种(5种为电压暂降情况,2种为电压突升情况),并根据每种情况的各自幅值、相角特点,计算DVR输出的补偿电压的幅值和相角,并给出最小能量补偿的依据。同时,在DVR传统结构上进行改进,以最新的三单相独立补偿取代传统的三相同时补偿,形成3个独立的充电电路、储能电容和输出补偿电路,提高了DVR的响应速度和精度,而且增加了抑制电压突升的功能。在Matlab/Simulink仿真软件下进行的单相电压跌落补偿试验,仿真结果显示,所提的补偿算法在不同电压突变情况下,均可对系统进行恰当的电压补偿,并能保证DVR消耗的能量最小。For DVR （Dynamic Voltage Restorer）requires different energy under different compensation modes, the compensation with minimal energy consumption is studied. There are seven voltage compensation conditions： five for voltage dips and two for voltage surges, The output voltage amplitude and phase angle of DVR are calculated for these conditions respectively according to their particular conditions of voltage amplitude and phase angle, and the basis of compensation with minimal energy consumption is given. The traditional DVR structure is improved by replacing the traditional three-phase compensation with three independent single-phase compensations. The application of three independent charging circuits, energy storage capacitors and output compensation circuits improves the response speed and accuracy of DVR and enhances the function of voltage surge suppression. The simulative test with Matlab/Simulink for single -phase voltage drop compensation shows that, this compensation mode compensates voltage properly for different voltage mutation circumstances, and ensures the smallest energy consumption.

关 键 词：动态电压恢复器 最小能量 电压补偿 电能质量 控制算法 

分 类 号：TM933.2[电气工程—电力电子与电力传动]