基于预测直接电流控制的APF死区效应补偿  

Dead-time effect compensation of APF based on predictive direct current control

作　　者：张波 唐昆明[2] 周小平 王江 

机构地区：[1]重庆新世纪电气公司,重庆400041 [2]输配电装备及系统安全与新技术国家重点实验室(重庆大学),重庆400030

出　　处：《电力系统保护与控制》2010年第12期54-58,共5页Power System Protection and Control

摘　　要：在研究了有源电力滤波器(APF)滞环控制死区效应对补偿效果影响的基础上,分析了目前死区效应补偿的现状,并且结合Matlab仿真波形和样机的实验数据,明确了死区效应影响产生的原因以及与之相关的控制变量。针对三相三线制系统,将交流电机控制领域所采用的预测直接电流空间矢量控制算法,用于有源电力滤波器逆变单元的控制,并实际应用于33kVA有源滤波器样机,实验结果验证了控制算法能有效地降低死区效应的影响,提高APF跟踪指令电流的控制精度和补偿效果。On the basis of analyzing the APF＇s dead-time effect with hysteresis current control,this paper describes the current status of dead-time effect compensation.With simulation analysis and experimental data,the reason of dead-time effect as well as control variables associated are confirmed.For the three-phase three-wire system,voltage vector control algorithm based on predictive direct current in the APF＇s inverter control is used in AC motor control field.Furthermore,the algorithm is applied to the 33 kVA APF prototype.The experimental result and data analysis verify that the method is feasible and effectual in reducing the dead-time effect and can enhance the control precison and compensation effect of APF when tracking control current.

关 键 词：APF 死区效应 无死区单边调制 预测直接电流控制 电压空间矢量 

分 类 号：TN713.8[电子电信—电路与系统]