并联有源电力滤波器的鲁棒性控制
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摘要
并联有源电力滤波器SAPF(shunt active power filter)是当前谐波治理的主趋势。为获得高品质的SAPF谐波补偿性能,提出具有鲁棒性的单相数字锁相环,通过乘法鉴相、环路低通滤波、无静差控制、积分取余等环节实现对网侧电压相位的检测;并设计具有高稳定性的直流侧电压控制器,应用极点配置法确定控制器参数。文中提出的锁相环相位跟踪结果不受电网电压畸变影响,锁相准确,电压控制器相角裕度大、响应速度快,能够兼顾稳态与暂态性能,因此该SAPF系统对电网具有良好的适应性。仿真与实验验证了所提方案的正确性与有效性。
Shunt active power filter(SAPF) is the main trend for harmonic governance. To obtain high-quality harmoniccompensation, a single-phase digital phase-locked loop with robustness is proposed,whichcould detect the phase of thenetwork voltage through the multiplication phase discrimination,loop low pass filter,non static error control and inte-gral remainder etc. And a high stability of the DC voltage controller is also designed by using pole assignment to deter-mine the controller parameters. The detection results of the phase-locked loop are not affected by voltage distortion fromgrid in this paper and phase wasobtained accurately. Also the voltage controller has a large phase margin, as well as afast response speed and both steady-state and transient performance are taken into account. Therefore, the SAPF systemhas a good adaptability to grid. Simulation and experimental results verify the correctness and effectiveness of the pro-grams.
Shunt active power filter(SAPF) is the main trend for harmonic governance. To obtain high-quality harmoniccompensation, a single-phase digital phase-locked loop with robustness is proposed,whichcould detect the phase of thenetwork voltage through the multiplication phase discrimination,loop low pass filter,non static error control and inte-gral remainder etc. And a high stability of the DC voltage controller is also designed by using pole assignment to deter-mine the controller parameters. The detection results of the phase-locked loop are not affected by voltage distortion fromgrid in this paper and phase wasobtained accurately. Also the voltage controller has a large phase margin, as well as afast response speed and both steady-state and transient performance are taken into account. Therefore, the SAPF systemhas a good adaptability to grid. Simulation and experimental results verify the correctness and effectiveness of the pro-grams.
引文
[1]张颖(Zhang Ying).有源滤波器在改善电能质量中的应用(Application of active power filter to improve power quality)[J].电力系统及其自动化学报(Proceedings of the CSU-EPSA),2010,22(4):103-106.
[2]时丽君,赵建国(Shi Lijun,Zhao Jianguo).有源电力滤波器在电能质量控制中的应用(Application of active power filter to improve power quality)[J].电力系统及其自动化学报(Proceedings of the CSU-EPSA),2002,14(1):67-71.
[3]Kesler M,Ozdemir E.Synchronous-reference-frame-based control method for UPQC under unbalanced and distorted load conditions[J].IEEE Trans on Industrial Electronics,2011,58(9):3967-3975.
[4]Rodriguez P,Pou J,Bergas J,et al.Decoupled double synchronous reference frame PLL for power converters control[J].IEEE Trans on Power Electronics,2007,22(2):584-592.
[5]Lee Jong-Pil,Min Byung-Duk,Kim Tae-Jin,et al.Active frequency with a positive feedback anti-islanding method based on a robust PLL algorithm for grid-connected PV PCS[J].Journal of Power Electronics,2011,11(3):360-368.
[6]孔飞飞,袁铁江,晁勤,等(Kong Feifei,Yuan Tiejiang,Chao Qin,et al).基于二阶广义积分的变流器电网同步法(A method of converter power grid synchronization based on second-order generalized integral)[J].电力系统保护与控制(Power System Protection and Control),2012,40(12):116-120.
[7]李静,张晓,刘晓雷(Li Jing,Zhang Xiao,Liu Xiaolie).滑模控制在APF直流侧电压控制中的应用研究(Research on sliding mode control applied in DC-link voltage control for APF)[J].电力电子技术(Power Electronics),2012,46(6):39-41.
[8]谢斌,戴珂,张树全,等(Xie Bin,Dai Ke,Zhang Shuquan,et al).并联型有源电力滤波器直流侧电压优化控制(Optimization control of DC link voltage for shunt active power filter)[J].中国电机工程学报(Proceedings of the CSEE),2011,31(9):23-29.
[9]张小凤,王孝洪,田联房,等(Zhang Xiaofeng,Wang Xiaohong,Tian Lianfang,et al).基于分数阶PIλ控制器的有源电力滤波器直流侧电压控制(DC voltage control of active power filter based on fractional-order PIλcontroller)[J].电力系统自动化(Automation of Electric Power Systems),2013,37(16):108-113,124.
[10]何娜,武健,徐殿国(He Na,Wu Jian,Xu Dianguo).有源电力滤波器直流电压的模糊控制(Fuzzy control of DC voltage in active power filter)[J].电网技术(Power System Technology),2006,30(14):45-48.
[11]王立峰,郑建勇,梅军,等(Wang Lifeng,Zheng Jianyong,Mei Jun,et al).有源滤波装置直流侧电压控制瞬时能量平衡建模(Instantaneous energy equilibrium modeling of DC side voltage control for active power filter device)[J].电工技术学报(Transactions of China Electrotechnical Society),2012,27(2):229-234,242.
[12]华晓萍,王奔,孟凌凌,等(Hua Xiaoping,Wang Ben,Meng Lingling,et al).有源电力滤波器仿真研究(Simulation research on active power filter)[J].电力自动化设备(Electric Power Automation Equipment),2007,27(1):42-45.
[13]吴艳娟(Wu Yanjuan).采用APF和SVC改善微网电能质量(Combined system of APF and SVC for power quality improvement in microgrid)[J].电力系统及其自动化学报(Proceedings of the CSU-EPSA),2012,24(1):147-150.
[14]冯德仁,姚兆虎,罗进,等(Feng Deren,Yao Zhaohu,Luo Jin,et al).DSP技术应用于双重化有源电力滤波器(Application of DSP technology on dual active power filter)[J].电力系统及其自动化学报(Proceedings of the CSU-EPSA),2014,26(9):71-75.
[2]时丽君,赵建国(Shi Lijun,Zhao Jianguo).有源电力滤波器在电能质量控制中的应用(Application of active power filter to improve power quality)[J].电力系统及其自动化学报(Proceedings of the CSU-EPSA),2002,14(1):67-71.
[3]Kesler M,Ozdemir E.Synchronous-reference-frame-based control method for UPQC under unbalanced and distorted load conditions[J].IEEE Trans on Industrial Electronics,2011,58(9):3967-3975.
[4]Rodriguez P,Pou J,Bergas J,et al.Decoupled double synchronous reference frame PLL for power converters control[J].IEEE Trans on Power Electronics,2007,22(2):584-592.
[5]Lee Jong-Pil,Min Byung-Duk,Kim Tae-Jin,et al.Active frequency with a positive feedback anti-islanding method based on a robust PLL algorithm for grid-connected PV PCS[J].Journal of Power Electronics,2011,11(3):360-368.
[6]孔飞飞,袁铁江,晁勤,等(Kong Feifei,Yuan Tiejiang,Chao Qin,et al).基于二阶广义积分的变流器电网同步法(A method of converter power grid synchronization based on second-order generalized integral)[J].电力系统保护与控制(Power System Protection and Control),2012,40(12):116-120.
[7]李静,张晓,刘晓雷(Li Jing,Zhang Xiao,Liu Xiaolie).滑模控制在APF直流侧电压控制中的应用研究(Research on sliding mode control applied in DC-link voltage control for APF)[J].电力电子技术(Power Electronics),2012,46(6):39-41.
[8]谢斌,戴珂,张树全,等(Xie Bin,Dai Ke,Zhang Shuquan,et al).并联型有源电力滤波器直流侧电压优化控制(Optimization control of DC link voltage for shunt active power filter)[J].中国电机工程学报(Proceedings of the CSEE),2011,31(9):23-29.
[9]张小凤,王孝洪,田联房,等(Zhang Xiaofeng,Wang Xiaohong,Tian Lianfang,et al).基于分数阶PIλ控制器的有源电力滤波器直流侧电压控制(DC voltage control of active power filter based on fractional-order PIλcontroller)[J].电力系统自动化(Automation of Electric Power Systems),2013,37(16):108-113,124.
[10]何娜,武健,徐殿国(He Na,Wu Jian,Xu Dianguo).有源电力滤波器直流电压的模糊控制(Fuzzy control of DC voltage in active power filter)[J].电网技术(Power System Technology),2006,30(14):45-48.
[11]王立峰,郑建勇,梅军,等(Wang Lifeng,Zheng Jianyong,Mei Jun,et al).有源滤波装置直流侧电压控制瞬时能量平衡建模(Instantaneous energy equilibrium modeling of DC side voltage control for active power filter device)[J].电工技术学报(Transactions of China Electrotechnical Society),2012,27(2):229-234,242.
[12]华晓萍,王奔,孟凌凌,等(Hua Xiaoping,Wang Ben,Meng Lingling,et al).有源电力滤波器仿真研究(Simulation research on active power filter)[J].电力自动化设备(Electric Power Automation Equipment),2007,27(1):42-45.
[13]吴艳娟(Wu Yanjuan).采用APF和SVC改善微网电能质量(Combined system of APF and SVC for power quality improvement in microgrid)[J].电力系统及其自动化学报(Proceedings of the CSU-EPSA),2012,24(1):147-150.
[14]冯德仁,姚兆虎,罗进,等(Feng Deren,Yao Zhaohu,Luo Jin,et al).DSP技术应用于双重化有源电力滤波器(Application of DSP technology on dual active power filter)[J].电力系统及其自动化学报(Proceedings of the CSU-EPSA),2014,26(9):71-75.