单相PWM整流器虚拟矢量控制策略
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摘要
单相PWM整流器虚拟矢量控制策略能够实现电流有功分量和无功分量的独立控制,受到国内外学者的广泛研究。但是传统的构建虚拟矢量(OSG)会影响系统的动态响应和稳态性能,且鲜有文献推导耦合项对系统性能的影响。本文提出一种考虑耦合项的单相PWM整流器虚拟矢量构建方法,将数字锁相环中广泛使用的二阶广义积分器(SOGI)引入虚拟矢量控制策略中,并简单介绍单相PWM整流器虚拟矢量控制策略的工作原理,推导出单相PWM整流器虚拟矢量控制策略在静止坐标系中的等效模型,将虚拟矢量控制策略与比例谐振控制策略进行比较分析,并基于该模型对不同OSG方法和解耦方式对系统性能的影响进行深入的对比分析,最后搭建基于Matlab/Simulink的单相PWM整流器仿真模型和实验平台,对所提控制策略和其他基于虚拟正交分量的矢量控制策略进行对比分析,验证所提控制策略的正确性和有效性。
Virtual vector control schemes for single-phase PWM converter can realize the reactive and active component of the grid current controlled independently. However, the orthogonal signals generators(OSG) methods may affect the dynamic response and harmonic performance, and rare papers have analyzed the connection between OSG methods and coupling term. An improved virtual vector control scheme is proposed in this paper, in which orthogonal signal generator(SOGI) is used to construct orthogonal signal, and the principle of the proposed control strategy is analyzed.Moreover, a unified equivalent model in stationary frame considering decoupling component is established to analyze the impact of decoupling approaches and the harmonic performance of OSG methods. Finally, both simulation and experimental results verify the correction and effectiveness of proposed methodology.
Virtual vector control schemes for single-phase PWM converter can realize the reactive and active component of the grid current controlled independently. However, the orthogonal signals generators(OSG) methods may affect the dynamic response and harmonic performance, and rare papers have analyzed the connection between OSG methods and coupling term. An improved virtual vector control scheme is proposed in this paper, in which orthogonal signal generator(SOGI) is used to construct orthogonal signal, and the principle of the proposed control strategy is analyzed.Moreover, a unified equivalent model in stationary frame considering decoupling component is established to analyze the impact of decoupling approaches and the harmonic performance of OSG methods. Finally, both simulation and experimental results verify the correction and effectiveness of proposed methodology.
引文
[1]Lee K,Ha J I.Single-phase inverter drive for interior permanent magnet machines[J].IEEE Transactions on Power Electronics,2016,32(2):1355-1366.
[2]姜卫东,李王敏,佘阳阳,等.直流电容储能反馈和负载功率前馈的PWM整流器控制策略[J].电工技术学报,2015,30(8):151-158.Jiang Weidong,Li Wangmin,Yu Yangyang,et al Control strategy for PWM rectifier based on feedback of the energy stored in capacitor and load power feed-forward[J].Transactions of China Electrotechnical Society.2015,30(8):151-158.
[3]郭伟,王跃,王兆安,等.应用于电动汽车充电站的PWM整流器控制方法[J].电工技术学报,2012,27(2):153-158.Guo Wei,Wang Yue,Wang Zhaoan,et al.Control strategy for PWM rectifier in electrical vechicle charging station[J].Transactions of China Electrotechnical Society,2012,27(2):153-158.
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[5]Mao Huifeng,Yang Xu,Chen Zenglu,et al.Ahysteresis current controller for single-phase threelevel voltage source inverters[J].IEEE Transactions on Power Electronics,2012,27(7):3330-3339.
[6]Song Wensheng,Deng Zhixian,Wang Shunliang,et al.A simple model predictive power control strategy for single-phase PWM converters with modulation function optimization[J].IEEE Transactions on Power Electronics,2016,31(7):5279-5289.
[7]王剑,郑琼林,高吉磊.基于根轨迹法的单相整流器比例-谐振电流调节器设计[J].电工技术学报,2012,27(9):251-256.Wang Jian,Zheng Qionglin,Gao Jilei.Design of current proportional-resonant regulator for singlephase PWM rectifier based on root-locus method[J].Transactions of China Electrotechnical Society,2012,27(9):251-256.
[8]高吉磊,林飞,郑琼林.基于网压预测的单相整流器比例谐振控制[J].电工技术学报,2011,26(5):45-51.Gao Jilei,Lin Fei,Zheng Qionglin.Proportionalresonant control of single-phase PWM rectifiers based on grid voltage prediction[J].Transactions of China Electrotechnical Society,2011,26(5):45-51.
[9]李立,赵葵银,徐昕远,等.单相整流器比例谐振控制与前馈补偿控制[J].电力系统保护与控制,2010,38(9):75-79.Li Li,Zhao Kuiyin,Xu Xinyuan,et al.Study on control strategy of a proportional-resonant control scheme with feed-forward compensator for the singlephase PWM rectifier[J].Power System Protection&Control,2010,38(9):75-79.
[10]Zhang R,Cardinal M,Szczesny P,et al.A grid simulator with control of single-phase power converters in D-Q rotating frame[C]//2002 IEEEPower Electronics Specialists Conference,Cairns,Qld.,Australia,2002,3:1431-1436.
[11]Kim R Y,Choi S Y,Suh I Y.Instantaneous control of average power for grid tie inverter using single phase D-Q rotating frame with all pass filter[C]//Conference of IEEE Industrial Electronics Society,Busan,South Korea,2004,1:274-279.
[12]Saritha B,Jankiraman P A.Observer based current control of single-phase inverter in DQ rotating frame[C]//IEEE International Conference on Power Electronics,Drives and Energy Systems,New Delhi,India,2006:1-5.
[13]Roshan A,Burgos R,Baisden A C,et al.A D-Qframe controller for a full-bridge single phase inverter used in small distributed power generation systems[C]//Applied Power Electronics Conference,APEC 2007-Twenty Second IEEE,Anaheim,CA,USA,2007:641-647.
[14]Gu Yunjie,Wang Yuxiang,Xiang Xin,et al.Improved virtual vector control of single-phase inverter based on unified model[J].IEEE Transactions on Energy Conversion,2014,29(3):611-618.
[15]Rodríguez P,Luna A,Mu?oz-Aguilar R S,et al.Astationary reference frame grid synchronization system for three-phase grid-connected power converters under adverse grid conditions[J].IEEETransactions on Power Electronics,2011,27(1):99-112.
[16]Yuan X,Merk W,Stemmler H,et al.Stationaryframe generalized integrators for current control of active power filters with zero steady-state error for current harmonics of concern under unbalanced and distorted operating conditions[J].IEEE Transactions on Industry Applications,2002,38(2):523-532.
[2]姜卫东,李王敏,佘阳阳,等.直流电容储能反馈和负载功率前馈的PWM整流器控制策略[J].电工技术学报,2015,30(8):151-158.Jiang Weidong,Li Wangmin,Yu Yangyang,et al Control strategy for PWM rectifier based on feedback of the energy stored in capacitor and load power feed-forward[J].Transactions of China Electrotechnical Society.2015,30(8):151-158.
[3]郭伟,王跃,王兆安,等.应用于电动汽车充电站的PWM整流器控制方法[J].电工技术学报,2012,27(2):153-158.Guo Wei,Wang Yue,Wang Zhaoan,et al.Control strategy for PWM rectifier in electrical vechicle charging station[J].Transactions of China Electrotechnical Society,2012,27(2):153-158.
[4]范声芳,熊健,张凯,等.大功率机车牵引四象限变流器解耦控制方案[J].中国电机工程学报,201232(21):63-70.Fan Shengfang,Xiong Jian,Zhang Kai,et al.Adecoupling control scheme of high power fourquadrant converters for traction[J].Proceedings of the CSEE,2012,32(21):63-70.
[5]Mao Huifeng,Yang Xu,Chen Zenglu,et al.Ahysteresis current controller for single-phase threelevel voltage source inverters[J].IEEE Transactions on Power Electronics,2012,27(7):3330-3339.
[6]Song Wensheng,Deng Zhixian,Wang Shunliang,et al.A simple model predictive power control strategy for single-phase PWM converters with modulation function optimization[J].IEEE Transactions on Power Electronics,2016,31(7):5279-5289.
[7]王剑,郑琼林,高吉磊.基于根轨迹法的单相整流器比例-谐振电流调节器设计[J].电工技术学报,2012,27(9):251-256.Wang Jian,Zheng Qionglin,Gao Jilei.Design of current proportional-resonant regulator for singlephase PWM rectifier based on root-locus method[J].Transactions of China Electrotechnical Society,2012,27(9):251-256.
[8]高吉磊,林飞,郑琼林.基于网压预测的单相整流器比例谐振控制[J].电工技术学报,2011,26(5):45-51.Gao Jilei,Lin Fei,Zheng Qionglin.Proportionalresonant control of single-phase PWM rectifiers based on grid voltage prediction[J].Transactions of China Electrotechnical Society,2011,26(5):45-51.
[9]李立,赵葵银,徐昕远,等.单相整流器比例谐振控制与前馈补偿控制[J].电力系统保护与控制,2010,38(9):75-79.Li Li,Zhao Kuiyin,Xu Xinyuan,et al.Study on control strategy of a proportional-resonant control scheme with feed-forward compensator for the singlephase PWM rectifier[J].Power System Protection&Control,2010,38(9):75-79.
[10]Zhang R,Cardinal M,Szczesny P,et al.A grid simulator with control of single-phase power converters in D-Q rotating frame[C]//2002 IEEEPower Electronics Specialists Conference,Cairns,Qld.,Australia,2002,3:1431-1436.
[11]Kim R Y,Choi S Y,Suh I Y.Instantaneous control of average power for grid tie inverter using single phase D-Q rotating frame with all pass filter[C]//Conference of IEEE Industrial Electronics Society,Busan,South Korea,2004,1:274-279.
[12]Saritha B,Jankiraman P A.Observer based current control of single-phase inverter in DQ rotating frame[C]//IEEE International Conference on Power Electronics,Drives and Energy Systems,New Delhi,India,2006:1-5.
[13]Roshan A,Burgos R,Baisden A C,et al.A D-Qframe controller for a full-bridge single phase inverter used in small distributed power generation systems[C]//Applied Power Electronics Conference,APEC 2007-Twenty Second IEEE,Anaheim,CA,USA,2007:641-647.
[14]Gu Yunjie,Wang Yuxiang,Xiang Xin,et al.Improved virtual vector control of single-phase inverter based on unified model[J].IEEE Transactions on Energy Conversion,2014,29(3):611-618.
[15]Rodríguez P,Luna A,Mu?oz-Aguilar R S,et al.Astationary reference frame grid synchronization system for three-phase grid-connected power converters under adverse grid conditions[J].IEEETransactions on Power Electronics,2011,27(1):99-112.
[16]Yuan X,Merk W,Stemmler H,et al.Stationaryframe generalized integrators for current control of active power filters with zero steady-state error for current harmonics of concern under unbalanced and distorted operating conditions[J].IEEE Transactions on Industry Applications,2002,38(2):523-532.
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