基于双点检测SRAPF的环形配电系统背景谐波衰减策略研究
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摘要
对于环型配电网,具有较高的供电可靠性,已然成为一种发展趋势,其线路电感与功率因数校正电容之间的谐振使得系统背景谐波电压谐振放大,导致电力系统中的谐波电压严重畸变。针对环形配电网中谐波谐振现象,提出一种基于双点检测单阻性有源滤波器(double point detection of single resistive active power filter,DPDSRAPF)的谐波衰减策略,即检测环形配电网中2个节点(其中一个节点为中点,另一节点为中点以外的节点)的谐波电压,而APF和非线性负载改变等工况下,具有更好的鲁棒性和谐波衰减效果。仿真分析和实验结果均验证该方案的正确性和有效性。
As a kind of development trend,the closed-loop distribution feeder has high power supply reliability. The harmonic resonance caused by capacitors for power factor correction and system inductors may lead to significant voltage distortion along the feeder. For this phenomenon,this paper proposes an double point detection of single resistive active power filter(DPDSRAPF)to damp out the harmonic resonance. The principle of the strategy is that the harmonic voltage of two nodes(one of the nodes is the midpoint,another node is outside the midpoint)are tested and APF is only installed at the middle point of the closed-loop distribution feeder. The proposed strategy has better capability of harmonic damping and harmonic mitigating,especially in response to variation of line impedance and non-linear loads. Both simulation and experiment results have been provided to validate the proposed strategy.
As a kind of development trend,the closed-loop distribution feeder has high power supply reliability. The harmonic resonance caused by capacitors for power factor correction and system inductors may lead to significant voltage distortion along the feeder. For this phenomenon,this paper proposes an double point detection of single resistive active power filter(DPDSRAPF)to damp out the harmonic resonance. The principle of the strategy is that the harmonic voltage of two nodes(one of the nodes is the midpoint,another node is outside the midpoint)are tested and APF is only installed at the middle point of the closed-loop distribution feeder. The proposed strategy has better capability of harmonic damping and harmonic mitigating,especially in response to variation of line impedance and non-linear loads. Both simulation and experiment results have been provided to validate the proposed strategy.
引文
[1]邢慧.浅谈电能质量分析与控制[J].山西建筑,2009,28:162-163.[1]Xing Hui.On power quality analysis and control[J].Shanxi Architecture,2009,28:162-163.
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[4]孙孝峰,谷岭,李志超,等.新型配电系统背景谐波抑制策略的研究[J].太阳能学报,2016,37(6):1359-1366.[4]Sun Xiaofeng,Gu Ling,Li Zhichao,et al.Damping strategy research of background harmonic in novel power distribution system[J].Acta Energiae Solaris Sinica,2016,37(6):1359-1366.
[5]Sun Xiaofeng,Zeng Jian,Chen Zhe.Site selection strategy of single-frequency tuned R-APF for background harmonic voltage damping in power systems[J].IEEETransactions on Power Electronics,2013,28(1):135-143.
[6]孙孝峰,曾健,张芳,等.阻性有源滤波器分频控制位置的选择方案[J].中国电机工程学报,2011,31(28):65-70.[6]Sun Xiaofeng,Zeng Jian,Zhang Fang,et al.Site selection strategy of discrete frequency resistive active power filter[J].Proceedings of the CSEE,2011,31(28):65-70.
[7]沈虹,贺勇凯,韩瑞静,等.配电网系统背景谐波衰减控制研究[J].太阳能学报,2016,37(4):838-846.[7]Shen Hong,He Yongkai,Han Ruijing,et al.Research of novel background harmonic mitigation strategy in distribution power system[J].Acta Energiae Solaris Sinica,2016,37(4):838-846.
[8]Rahmani S,Hamadi A,Al-Haddad K,et al.Acombination of shunt hybrid power filter and thyristorcontrolled reactor for power quality[J].IEEETransactions on Industrial Electronics,2014,61(5):2152-2164.
[9]Li Tzunglin,Wang Yenching,Li Jiancheng,et al.Hybrid active filter with variable conductance for harmonic resonance suppression in industrial power systems[J].IEEE Transactions on Industrial Electronics,2015,62(2):746-756.
[10]吴振辉,彭晓涛,沈阳武,等.一种配电网环形供电模型及其合环运行方式的研究[J].中国电机工程学报,2013,33(10):57-63.[10]Wu Zhenhui,Peng Xiaotao,Shen Yangwu,et al.Study on a loop power supply model and its loop-close operation mode for distribution network[J].Proceedings of the CSEE,2013,33(10):57-63.
[11]龚璐.配电网系统背景谐波抑制方案研究[D].秦皇岛:燕山大学,2013.[11]Gong Lu.Research on background harmonic propagation suppression in distribution systems[D].Qinghuangdao:Yanshan University,2013.
[12]Li Tzung-lin,Cheng Po-Tai.A harmonic damping method for a loop power system[A].IEEE Industry Applications Society Meeting[C],Edmonton,AB,Canada,2008.
[13]Lee Tzung-Lin,Hu Shang-Hu.Discrete frequencytuning active filter to suppress harmonic resonances of closed-loop distribution power systems[J].IEEETransactions on Power Electronics,2011,26(1):137-148.
[14]Sun Xiaofeng,Han Ruijing,Yang Lili,et al.Study of a novel equivalent model and a long-feeder simulatorbased active power filter in a closed-loop distribution feeder[J].IEEE Transactions on Industrial Electronics,2016,63(5):2702-2712.
[15]孙孝峰,韩瑞静,杨理莉,等.等效无限长有源电力滤波器在环形配电网中的应用[J].中国电机工程学报,2016,36(1):224-230.[15]Sun Xiaofeng,Han Ruijing,Yang Lili,et al.Study on applications of infinite active power filters in closed-loop distribution power systems[J].Proceedings of the CSEE,2016,36(1):224-230.
[2]Wada K,Fujita H,Akagi H.Considerations of a shunt active filter based on voltage detection for installation on a long distribution feeder[J].IEEE Transactions on Industry Applications,2002,1(4):1123-1130.
[3]Sun Xiaofeng,Lee Zhichao,Gong Lu,et al.A novel control strategy of active filter for suppressing background harmonic voltage magnification in power distribution system[A].Power Electronics and Motion Control Conference[C],Harbin,China,2012.
[4]孙孝峰,谷岭,李志超,等.新型配电系统背景谐波抑制策略的研究[J].太阳能学报,2016,37(6):1359-1366.[4]Sun Xiaofeng,Gu Ling,Li Zhichao,et al.Damping strategy research of background harmonic in novel power distribution system[J].Acta Energiae Solaris Sinica,2016,37(6):1359-1366.
[5]Sun Xiaofeng,Zeng Jian,Chen Zhe.Site selection strategy of single-frequency tuned R-APF for background harmonic voltage damping in power systems[J].IEEETransactions on Power Electronics,2013,28(1):135-143.
[6]孙孝峰,曾健,张芳,等.阻性有源滤波器分频控制位置的选择方案[J].中国电机工程学报,2011,31(28):65-70.[6]Sun Xiaofeng,Zeng Jian,Zhang Fang,et al.Site selection strategy of discrete frequency resistive active power filter[J].Proceedings of the CSEE,2011,31(28):65-70.
[7]沈虹,贺勇凯,韩瑞静,等.配电网系统背景谐波衰减控制研究[J].太阳能学报,2016,37(4):838-846.[7]Shen Hong,He Yongkai,Han Ruijing,et al.Research of novel background harmonic mitigation strategy in distribution power system[J].Acta Energiae Solaris Sinica,2016,37(4):838-846.
[8]Rahmani S,Hamadi A,Al-Haddad K,et al.Acombination of shunt hybrid power filter and thyristorcontrolled reactor for power quality[J].IEEETransactions on Industrial Electronics,2014,61(5):2152-2164.
[9]Li Tzunglin,Wang Yenching,Li Jiancheng,et al.Hybrid active filter with variable conductance for harmonic resonance suppression in industrial power systems[J].IEEE Transactions on Industrial Electronics,2015,62(2):746-756.
[10]吴振辉,彭晓涛,沈阳武,等.一种配电网环形供电模型及其合环运行方式的研究[J].中国电机工程学报,2013,33(10):57-63.[10]Wu Zhenhui,Peng Xiaotao,Shen Yangwu,et al.Study on a loop power supply model and its loop-close operation mode for distribution network[J].Proceedings of the CSEE,2013,33(10):57-63.
[11]龚璐.配电网系统背景谐波抑制方案研究[D].秦皇岛:燕山大学,2013.[11]Gong Lu.Research on background harmonic propagation suppression in distribution systems[D].Qinghuangdao:Yanshan University,2013.
[12]Li Tzung-lin,Cheng Po-Tai.A harmonic damping method for a loop power system[A].IEEE Industry Applications Society Meeting[C],Edmonton,AB,Canada,2008.
[13]Lee Tzung-Lin,Hu Shang-Hu.Discrete frequencytuning active filter to suppress harmonic resonances of closed-loop distribution power systems[J].IEEETransactions on Power Electronics,2011,26(1):137-148.
[14]Sun Xiaofeng,Han Ruijing,Yang Lili,et al.Study of a novel equivalent model and a long-feeder simulatorbased active power filter in a closed-loop distribution feeder[J].IEEE Transactions on Industrial Electronics,2016,63(5):2702-2712.
[15]孙孝峰,韩瑞静,杨理莉,等.等效无限长有源电力滤波器在环形配电网中的应用[J].中国电机工程学报,2016,36(1):224-230.[15]Sun Xiaofeng,Han Ruijing,Yang Lili,et al.Study on applications of infinite active power filters in closed-loop distribution power systems[J].Proceedings of the CSEE,2016,36(1):224-230.