基于单周控制的三相四线制有源电力滤波器  

THREE-PHASE FOUR-WIRE ACTIVE POWER FILTER WITH ONE-CYCLE CONTROL

作　　者：周林[1,2] 蒋建文[1] 周雒维[1] 叶一麟[3] 

机构地区：[1]重庆大学电气工程学院 [2]高电压与电工理论新技术教育部重点实验室,重庆400044 [3]高电压与电工理论新技术教育部重点实验室

出　　处：《中国电机工程学报》2003年第3期85-88,125,共5页Proceedings of the CSEE

基　　金：国家自然科学基金项目(60172009). ~~

摘　　要：该文提出一种单周控制的三相四线制有源电力滤波器。它不需要检测三相负载电流和三相输入电压,不需要繁琐的无功电流和谐波电流计算,也不需要任何乘法器。控制器结构简单,整个控制器由几个带复位积分器、比较器、触发器和一些线性元件组成。具有控制精度高,补偿效果好的特点。滤波器工作于恒定开关频率,易于工业应用。在建立数学模型的基础上进行了仿真研究,仿真结果证明其有很好的动静态补偿性能,能有效地补偿系统谐波、零序和无功电流,提高输电线功率因数和传输效率。A three-phase four-wire active power filter (APF), controlled by one-cycle controller is presented. This scheme doesn抰 need any measured quantities of three-phase load currents and three-phase input voltages. And also the complicated calculations of the harmonics and reactive current components and the use of multipliers are eliminated. The controller used has simple structure, which is composed of some integrators with reset, flip-flops, comparators and linear components. The active power filter proposed has features of high precision and effective compensation. In addition, it works conder constant switching frequency modulation ,and thus, is desirable for industrial applications. The mathematical simulation results verify that the APF with onecycle control can compensate the harmonics, reactive currents and zero sequence current in transient state and steady state effectively.

关 键 词：单周控制 三相四线制 有源电力滤波器 电力系统 无功功率补偿 

分 类 号：TN713.8[电子电信—电路与系统] TM714.3[电气工程—电力系统及自动化]