有源电力滤波器指定次谐波补偿优化限流策略研究
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摘要
为保障有源电力滤波器(Active Power Filter,APF)在超过其额定容量的工况下稳定运行,提出了一种基于负载谐波电流重构的限流策略,实现有源滤波器输出指定次谐波电流的精确限流。根据补偿后电网电流总谐波畸变率(THD)最小原则构建补偿结果的评价体系,通过对电流重构波形中各次谐波含量的调整,提出了一种有源滤波器的最优补偿方案。最后利用半实物平台进行了相关实验,对比分析了负载电流在稳态和动态下,谐波电流重构与传统方法的限流与补偿效果,验证了所提重构补偿方案的正确性与优越性。
In order to ensure the APF to operate stably under the condition that the compensating current exceeds its rated capacity, a novel current-limiting strategy based on load harmonic current reconstruction is proposed for realizing the accurate limitation of selective current outputted by active power filter. Based on the evaluation criteria of using the minimum Total Harmonic Distortion(THD) of the compensated grid current to construct compensation result, an optimal compensation scheme for active power filter is proposed by adjusting harmonic contents in the current reconstruction waveform. Finally, corresponding experiments are carried out by employing a semi-physical experiment platform, in which current limiting and compensation effect between traditional current limiting strategy and harmonic current reconstruction strategy are compared and analyzed in load current steady state and dynamic state. Experimental results validate the feasibility and superiority of the proposed strategy.
In order to ensure the APF to operate stably under the condition that the compensating current exceeds its rated capacity, a novel current-limiting strategy based on load harmonic current reconstruction is proposed for realizing the accurate limitation of selective current outputted by active power filter. Based on the evaluation criteria of using the minimum Total Harmonic Distortion(THD) of the compensated grid current to construct compensation result, an optimal compensation scheme for active power filter is proposed by adjusting harmonic contents in the current reconstruction waveform. Finally, corresponding experiments are carried out by employing a semi-physical experiment platform, in which current limiting and compensation effect between traditional current limiting strategy and harmonic current reconstruction strategy are compared and analyzed in load current steady state and dynamic state. Experimental results validate the feasibility and superiority of the proposed strategy.
引文
[1]许胜,费树岷,赵剑锋,等.多模块APF并联系统高频谐波环流分析与控制[J].电工技术学报,2016,31(5):60-68.XU Sheng,FEI Shumin,ZHAO Jianfeng,et al.Analysis and control of high-frequency harmonic circular currents in multi-module APF parallel system[J].Transactions of China Electrotechnical Society,2016,31(5):60-68.
[2]许胜,费树岷,赵剑锋,等.基于同步旋转坐标系的有源电力滤波器控制延时动态预测补偿策略[J].电工技术学报,2016,31(12):161-169.XU Sheng,FEI Shumin,ZHAO Jianfeng,et al.The dynamic predictive compensation strategy for the time delay of active power filter control system based on synchronous rotating frame[J].Transactions of China Electrotechnical Society,2016,31(12):161-169.
[3]XU Chen,DAI Ke,CHEN Xinwen,et al.Parallel resonance detection and selective compensation control for SAPF with square-wave current active injection[J].IEEE Transactions on Industry Electronics,2017,64(10):8066-8078.
[4]张栋梁,谢业华,刘娟,等.基于遗传算法的有源电力滤波器滑模控制[J].电力系统保护与控制,2016,44(5):69-74.ZHANG Dongliang,XIE Yehua,LIU Juan,et al.Sliding mode control of active power filters based on genetic algorithm[J].Power System Protection and Control,2016,44(5):69-74.
[5]张艳军,杨晟飞,杨祯.一种无谐波检测的中频有源电力滤波器[J].陕西电力,2016,20(12):73-75.ZHANG Yanjun,YANG Shengfei,YANG Zhen.Medium frequency active power filter without harmonic detection[J].Shaanxi Electric Power,2016,20(12):73-75.
[6]蒋美娜,马晓春,孙占龙,等.改进型STATCOM控制策略研究[J].陕西电力,2016,44(12):34-38.JIANG Meina,MA Xiaochun,SUN Zhanlong,et al.Control strategy for improved STATCOM[J].Shaanxi Electric Power,2016,44(12):34-38.
[7]马鸿雁,孙凯,魏庆,等.PWM逆变器相电流重构研究与误差分析[J].电工技术学报,2011,26(1):108-114.MA Hongyan,SUN Kai,WEI Qing,et al.Phase current reconstruction method for PWM inverter and error analysis[J].Transactions of China Electrotechnical Society,2011,26(1):108-114.
[8]许胜,费树岷,赵剑锋.同步旋转坐标系中谐波电流分次控制策略[J].电工技术学报,2016,31(16):154-162.XU Sheng,FEI Shumin,ZHAO Jianfeng.Harmonic current frequency dividing control strategy based on synchronous rotating frame[J].Transactions of China Electrotechnical Society,2016,31(16):154-162.
[9]张树全,戴珂,谢斌,等.并联型有源电力滤波器按容量比例分频端补偿并联控制策略[J].电工技术学报,2010,25(9):115-121.ZHANG Shuquan,DAI Ke,XIE Bin,et al.Parallel control of shunt active power filters with capacity proportion frequency allocation compensation[J].Transactions of China Electrotechnical Society,2010,25(9):115-121.
[10]张树全.基于分频控制的并联型APF关键技术研究[D].武汉:华中科技大学,2011.ZHANG Shuquan.Research on key techniques of shunt active power based on frequency dividing control[D].Wuhan:Huazhong University of Science and Technology,2011.
[11]易皓,卓放,翟灏.基于矢量谐振调节器的有源电力滤波器网侧电流检测控制方法研究[J].电工技术学报,2015,30(7):72-79.YI Hao,ZHUO Fang,ZHAI Hao.Research on source current detection type APF control scheme based on vector resonant regulator[J].Transactions of China Electrotechnical Society,2015,30(7):72-79.
[12]张树全,戴珂,谢斌,等.多同步旋转坐标系下指定次谐波电流控制[J].中国电机工程学报,2010,30(3):55-62.ZHANG Shuquan,DAI Ke,XIE Bin,et al.Selective harmonic current control based on multiple synchronous rotating coordinate[J].Proceedings of the CSEE,2010,30(3):55-62.
[13]万杰星.模块化APF多台并联运行关键技术研究[D].南京:东南大学,2016.WAN Jiexing.Key techniques research on operation of multi-modular shunt APF[D].Nanjing:Southeast University,2016.
[14]王异凡.多模块并联APF关键技术研究[D].杭州:浙江大学,2015.WANG Yifan.Research on key techniques of multimodule shunt APF[D].Hangzhou:Zhejiang University,2015.
[15]姚芳.多台APF并联技术及其实现[D].长沙:湖南大学,2014.YAO Fang.Multiple APF parallel technology and implementation[D].Changsha:Hunan University,2014.
[16]刘聪,戴珂,张树全,等.并联型APF补偿电压源型非线性负载时谐波电流放大效应的研究[J].中国电机工程学报,2011,31(27):21-28.LIU Cong,DAI Ke,ZHANG Shuquan,et al.Harmonic current amplification effect of voltage-source type nonlinear load under compensation by shunt APF[J].Proceedings of the CSEE,2011,31(27):21-28.
[17]CONZATTI R B,FERREIRA S C,DA SILAVA C H.Hybrid active power filter applied to harmonic compensation of current-source type and voltage-source type nonlinear loads[C]//IEEE Power Electronics Conference,October 27-31,2013,Gramado,Brazil:1257-1262.
[18]李鹏,蒋晓明,黄俊华,等.并联型APF补偿容性非线性负载不稳定机理研究[J].电力系统保护与控制,2016,44(14):55-60.LI Peng,JIANG Xiaoming,HUANG Junhua,et al.Instability mechanism study of shunt active filter in compensation of capacitive nonlinearity load[J].Power System Protection and Control,2016,44(14):55-60.
[19]ZHAO Wenqiang,CHEN Guozhu.Approaches to shunt active power filter for application with capacitive nonlinear load[C]//Proceedings of IEEE International Symposium on Industrial Electronics,July 5-8,2009,Seoul,South Korea:1835-1840.
[20]陆康,刁倩.有源滤波器在不同网络中的应用分析[J].电力系统保护与控制,2015,43(3):143-149.LU Kang,DIAO Qian.Analysis of active power filter applications in different networks[J].Power System Protection and Control,2015,43(3):143-149.
[21]杨振宇,赵剑锋,唐国庆.并联型有源电力滤波器限流补偿策略研究[J].电力自动化设备,2006,26(3):21-24.YANG Zhenyu,ZHAO Jianfeng,TANG Guoqing.Research on current limiting compensation scheme of shunt APF[J].Electric Power Automation Equipment,2006,26(3):21-24.
[2]许胜,费树岷,赵剑锋,等.基于同步旋转坐标系的有源电力滤波器控制延时动态预测补偿策略[J].电工技术学报,2016,31(12):161-169.XU Sheng,FEI Shumin,ZHAO Jianfeng,et al.The dynamic predictive compensation strategy for the time delay of active power filter control system based on synchronous rotating frame[J].Transactions of China Electrotechnical Society,2016,31(12):161-169.
[3]XU Chen,DAI Ke,CHEN Xinwen,et al.Parallel resonance detection and selective compensation control for SAPF with square-wave current active injection[J].IEEE Transactions on Industry Electronics,2017,64(10):8066-8078.
[4]张栋梁,谢业华,刘娟,等.基于遗传算法的有源电力滤波器滑模控制[J].电力系统保护与控制,2016,44(5):69-74.ZHANG Dongliang,XIE Yehua,LIU Juan,et al.Sliding mode control of active power filters based on genetic algorithm[J].Power System Protection and Control,2016,44(5):69-74.
[5]张艳军,杨晟飞,杨祯.一种无谐波检测的中频有源电力滤波器[J].陕西电力,2016,20(12):73-75.ZHANG Yanjun,YANG Shengfei,YANG Zhen.Medium frequency active power filter without harmonic detection[J].Shaanxi Electric Power,2016,20(12):73-75.
[6]蒋美娜,马晓春,孙占龙,等.改进型STATCOM控制策略研究[J].陕西电力,2016,44(12):34-38.JIANG Meina,MA Xiaochun,SUN Zhanlong,et al.Control strategy for improved STATCOM[J].Shaanxi Electric Power,2016,44(12):34-38.
[7]马鸿雁,孙凯,魏庆,等.PWM逆变器相电流重构研究与误差分析[J].电工技术学报,2011,26(1):108-114.MA Hongyan,SUN Kai,WEI Qing,et al.Phase current reconstruction method for PWM inverter and error analysis[J].Transactions of China Electrotechnical Society,2011,26(1):108-114.
[8]许胜,费树岷,赵剑锋.同步旋转坐标系中谐波电流分次控制策略[J].电工技术学报,2016,31(16):154-162.XU Sheng,FEI Shumin,ZHAO Jianfeng.Harmonic current frequency dividing control strategy based on synchronous rotating frame[J].Transactions of China Electrotechnical Society,2016,31(16):154-162.
[9]张树全,戴珂,谢斌,等.并联型有源电力滤波器按容量比例分频端补偿并联控制策略[J].电工技术学报,2010,25(9):115-121.ZHANG Shuquan,DAI Ke,XIE Bin,et al.Parallel control of shunt active power filters with capacity proportion frequency allocation compensation[J].Transactions of China Electrotechnical Society,2010,25(9):115-121.
[10]张树全.基于分频控制的并联型APF关键技术研究[D].武汉:华中科技大学,2011.ZHANG Shuquan.Research on key techniques of shunt active power based on frequency dividing control[D].Wuhan:Huazhong University of Science and Technology,2011.
[11]易皓,卓放,翟灏.基于矢量谐振调节器的有源电力滤波器网侧电流检测控制方法研究[J].电工技术学报,2015,30(7):72-79.YI Hao,ZHUO Fang,ZHAI Hao.Research on source current detection type APF control scheme based on vector resonant regulator[J].Transactions of China Electrotechnical Society,2015,30(7):72-79.
[12]张树全,戴珂,谢斌,等.多同步旋转坐标系下指定次谐波电流控制[J].中国电机工程学报,2010,30(3):55-62.ZHANG Shuquan,DAI Ke,XIE Bin,et al.Selective harmonic current control based on multiple synchronous rotating coordinate[J].Proceedings of the CSEE,2010,30(3):55-62.
[13]万杰星.模块化APF多台并联运行关键技术研究[D].南京:东南大学,2016.WAN Jiexing.Key techniques research on operation of multi-modular shunt APF[D].Nanjing:Southeast University,2016.
[14]王异凡.多模块并联APF关键技术研究[D].杭州:浙江大学,2015.WANG Yifan.Research on key techniques of multimodule shunt APF[D].Hangzhou:Zhejiang University,2015.
[15]姚芳.多台APF并联技术及其实现[D].长沙:湖南大学,2014.YAO Fang.Multiple APF parallel technology and implementation[D].Changsha:Hunan University,2014.
[16]刘聪,戴珂,张树全,等.并联型APF补偿电压源型非线性负载时谐波电流放大效应的研究[J].中国电机工程学报,2011,31(27):21-28.LIU Cong,DAI Ke,ZHANG Shuquan,et al.Harmonic current amplification effect of voltage-source type nonlinear load under compensation by shunt APF[J].Proceedings of the CSEE,2011,31(27):21-28.
[17]CONZATTI R B,FERREIRA S C,DA SILAVA C H.Hybrid active power filter applied to harmonic compensation of current-source type and voltage-source type nonlinear loads[C]//IEEE Power Electronics Conference,October 27-31,2013,Gramado,Brazil:1257-1262.
[18]李鹏,蒋晓明,黄俊华,等.并联型APF补偿容性非线性负载不稳定机理研究[J].电力系统保护与控制,2016,44(14):55-60.LI Peng,JIANG Xiaoming,HUANG Junhua,et al.Instability mechanism study of shunt active filter in compensation of capacitive nonlinearity load[J].Power System Protection and Control,2016,44(14):55-60.
[19]ZHAO Wenqiang,CHEN Guozhu.Approaches to shunt active power filter for application with capacitive nonlinear load[C]//Proceedings of IEEE International Symposium on Industrial Electronics,July 5-8,2009,Seoul,South Korea:1835-1840.
[20]陆康,刁倩.有源滤波器在不同网络中的应用分析[J].电力系统保护与控制,2015,43(3):143-149.LU Kang,DIAO Qian.Analysis of active power filter applications in different networks[J].Power System Protection and Control,2015,43(3):143-149.
[21]杨振宇,赵剑锋,唐国庆.并联型有源电力滤波器限流补偿策略研究[J].电力自动化设备,2006,26(3):21-24.YANG Zhenyu,ZHAO Jianfeng,TANG Guoqing.Research on current limiting compensation scheme of shunt APF[J].Electric Power Automation Equipment,2006,26(3):21-24.