基于重复控制和滑模控制的APF电流控制方法
|
摘要
针对传统PI控制无法实现无静差跟踪控制和难以保证在负载突变或参考电压跳变时对直流侧电压进行快速精准控制,提出了一种基于重复控制和滑模变结构控制的APF电流控制方法。该方法在传统PI控制的基础上,融合了滑模变结构控制和重复控制的优点,将重复控制引入电流内环控制中,对APF输出电流进行快速跟踪控制,将滑模变结构控制引入电压外环控制中,对直流侧电压进行快速精准控制。仿真及实验结果证明了提出的电流控制方法相比于传统PI控制方法具有更高的谐波补偿精度及更快的动态响应速度。
In view of not achieving static error free tracking control and not assuring fast and accurate control of the voltage at DC side when load sudden change or reference voltage jump by the traditional PI control method,a kind of APF current control method based on repetitive control and sliding mode variable structure control is proposed.The advantage of sliding mode variable structure control and repetitive control is combined on the basis of traditional PI control in this method,the repetitive control is introduced into the current inner loop control to perform fast tracking and control of the APF output current,and the sliding mode variable structure is introduced into the voltage outer loop control for fast and accurate control of the voltage at DC side.It is proved by the simulation and experimental result that the current control method,compared to traditional PI control method,has higher harmonic compensation accuracy and faster dynamic response speed.
In view of not achieving static error free tracking control and not assuring fast and accurate control of the voltage at DC side when load sudden change or reference voltage jump by the traditional PI control method,a kind of APF current control method based on repetitive control and sliding mode variable structure control is proposed.The advantage of sliding mode variable structure control and repetitive control is combined on the basis of traditional PI control in this method,the repetitive control is introduced into the current inner loop control to perform fast tracking and control of the APF output current,and the sliding mode variable structure is introduced into the voltage outer loop control for fast and accurate control of the voltage at DC side.It is proved by the simulation and experimental result that the current control method,compared to traditional PI control method,has higher harmonic compensation accuracy and faster dynamic response speed.
引文
[1]杜旭,乐健,周武,等.并联有源电力滤波器典型重复控制策略的分析与改进[J].电测与仪表,2016,53(21):35-40.DU Xu,YUE Jian,ZHOU Wu,et al. Analysis and improvement of typical repetitive control strategy for shunt active power filter[J]. Electrical Measurement&Instrumentation,2016,53(21):35-40.
[2]田飞燕,高云广,宋建成,等.并联型有源电力滤波器的复合电流控制方法[J].电气传动,2017,47(7):67-71.TIAN Feiyan,GAO Yunguang,SONG Jiancheng,et al.Compound current control method for shunt active power filters[J]. Electric Drive,2017,47(7):67-71.
[3]张培远.重复一模糊PI复合控制策略在APF中的应用[J].电气应用,2016,35(18):46-52.
[4]马辉,程江洲,王辉,等.滑模PI控制在APF直流侧电压控制中的应用[J].电力电子技术,2017,51(5):61-64.MA Hui,CHENG Jiangzhou,WANG Hui,et al. Mode PI control of DC-link voltage control for APF[J]. Power Electronics,2017,51(5):61-64.
[5]李兰芳,徐晓刚,吴国兵,等.并联型APF直流侧电压的滑模PI控制策略研究[J].电力系统保护与控制,2017,45(5):32-37.LI Lanfang,XU Xiaogang,WU Guobing,et al. PI control based on sliding mode variable structure of DC-link voltage for shunt active power filter[J]. Power System Protection and Control,2017,45(5):32-37.
[6]李正明,高远,潘天红.基于复合控制的有源电力滤波器电流控制策略[J].电力系统保护与控制,2017,45(15):55-61.LI Zhengming,GAO Yuan,PAN Tianhong. Compensation current control of APF based on compound control[J]. Power System Protection and Control,2017,45(15):55-61.
[7]刘海舰,曾庆军,赵冰冰,等.基于滑模控制的SVG无功补偿控制策略研究[J].电力电容器与无功补偿,2017,38(1):55-60.LIU Haijian,ZENG Qingjun,ZHAO Bingbing,et al. Study on control strategy of SVG reactive power compensation based on sliding mode control[J]. Power Capacitor&Reactive Power Compensation,2017,38(1):55-60.
[8]徐群伟,钟晓剑,胡健,等.基于误差迭代PI和改进重复控制的APF补偿电流控制[J].电力系统自动化,2015,39(3):124-131.XU Qunwei,ZHONG Xiaojian,HU Jian,et al. Compensation current control of APF based on error iteration PI and improved repetitive control[J]. Automation of Electric Power Systems,2015,39(3):124-131.
[9]赵利民,李海峰.基于PI与重复复合控制的并网整流器并网系统研究[J].电气传动,2017,47(2):24-28.ZHAO Limin,LI Haifeng. Research of grid-connected rectifier based on the PI and repetitive control[J]. Electric Drive,2017,47(2):24-28.
[10]王月,徐千鸣.单同步旋转坐标系下APF的谐波快速重复控制[J].电力电子技术,2017,51(5):57-60.WANG Yue,XU Qianming. Fast repetitive control of harmonic for APF based on single synchronous rotating frame[J].Power Electronics,2017,51(5):57-60.
[2]田飞燕,高云广,宋建成,等.并联型有源电力滤波器的复合电流控制方法[J].电气传动,2017,47(7):67-71.TIAN Feiyan,GAO Yunguang,SONG Jiancheng,et al.Compound current control method for shunt active power filters[J]. Electric Drive,2017,47(7):67-71.
[3]张培远.重复一模糊PI复合控制策略在APF中的应用[J].电气应用,2016,35(18):46-52.
[4]马辉,程江洲,王辉,等.滑模PI控制在APF直流侧电压控制中的应用[J].电力电子技术,2017,51(5):61-64.MA Hui,CHENG Jiangzhou,WANG Hui,et al. Mode PI control of DC-link voltage control for APF[J]. Power Electronics,2017,51(5):61-64.
[5]李兰芳,徐晓刚,吴国兵,等.并联型APF直流侧电压的滑模PI控制策略研究[J].电力系统保护与控制,2017,45(5):32-37.LI Lanfang,XU Xiaogang,WU Guobing,et al. PI control based on sliding mode variable structure of DC-link voltage for shunt active power filter[J]. Power System Protection and Control,2017,45(5):32-37.
[6]李正明,高远,潘天红.基于复合控制的有源电力滤波器电流控制策略[J].电力系统保护与控制,2017,45(15):55-61.LI Zhengming,GAO Yuan,PAN Tianhong. Compensation current control of APF based on compound control[J]. Power System Protection and Control,2017,45(15):55-61.
[7]刘海舰,曾庆军,赵冰冰,等.基于滑模控制的SVG无功补偿控制策略研究[J].电力电容器与无功补偿,2017,38(1):55-60.LIU Haijian,ZENG Qingjun,ZHAO Bingbing,et al. Study on control strategy of SVG reactive power compensation based on sliding mode control[J]. Power Capacitor&Reactive Power Compensation,2017,38(1):55-60.
[8]徐群伟,钟晓剑,胡健,等.基于误差迭代PI和改进重复控制的APF补偿电流控制[J].电力系统自动化,2015,39(3):124-131.XU Qunwei,ZHONG Xiaojian,HU Jian,et al. Compensation current control of APF based on error iteration PI and improved repetitive control[J]. Automation of Electric Power Systems,2015,39(3):124-131.
[9]赵利民,李海峰.基于PI与重复复合控制的并网整流器并网系统研究[J].电气传动,2017,47(2):24-28.ZHAO Limin,LI Haifeng. Research of grid-connected rectifier based on the PI and repetitive control[J]. Electric Drive,2017,47(2):24-28.
[10]王月,徐千鸣.单同步旋转坐标系下APF的谐波快速重复控制[J].电力电子技术,2017,51(5):57-60.WANG Yue,XU Qianming. Fast repetitive control of harmonic for APF based on single synchronous rotating frame[J].Power Electronics,2017,51(5):57-60.