基于虚拟阻抗补偿的数模混合仿真系统功率接口建模方法
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摘要
该文提出了基于虚拟阻抗补偿的功率接口建模方法,以提高用于模块化多电平换流器高压直流输电的数字物理混合仿真系统的稳定性和仿真精度。在分析电压源型理想变压器法的原理及稳定性条件的基础上,提出在数字仿真系统受控电流源的控制量中加入虚拟阻抗电流补偿的方法。给出基于虚拟阻抗法的数模混合仿真系统稳定性条件,得出虚拟阻抗可能的取值范围。综合考虑系统稳定性和仿真精度,提出虚拟阻抗参数的优化方法。搭建用于简单系统和柔性直流输电系统的混合仿真系统的仿真模型,进行稳态运行条件下不同接口建模方法仿真结果的比较,验证了文中所提方法对于同时提高数字物理混合仿真系统稳定性仿真精度的正确性和有效性。
To improve the stability and simulation accuracy of the digital-physical hybrid simulation system of a modular multilevel converter high voltage direct current(MMCHVDC), a novel power interface unit modeling method based on the virtual impedance compensation was proposed in this paper. By analyzing the principles and stability condition of the hybrid simulation system based on the voltage source ideal transformer model, the current of a virtual impedance was introduced to compensate the control signal of the controlled current source in the digital simulation system. The stability condition of the hybrid simulation system with the virtual impedance compensation power interface model was presented,and the feasible value range of the virtual impedance was obtained. By comprehensively considering the system stability and simulation accuracy, the value optimization method of the virtual impedance was proposed. The simulation models of the hybrid simulation systems for a simple power system and a MMC-HVDC system were established, and the steady-state simulation results of different power interface modeling methods were compared, to prove the correctness and effectiveness of the proposed method in simultaneously improving the stability and accuracy of a hybrid simulation system.
To improve the stability and simulation accuracy of the digital-physical hybrid simulation system of a modular multilevel converter high voltage direct current(MMCHVDC), a novel power interface unit modeling method based on the virtual impedance compensation was proposed in this paper. By analyzing the principles and stability condition of the hybrid simulation system based on the voltage source ideal transformer model, the current of a virtual impedance was introduced to compensate the control signal of the controlled current source in the digital simulation system. The stability condition of the hybrid simulation system with the virtual impedance compensation power interface model was presented,and the feasible value range of the virtual impedance was obtained. By comprehensively considering the system stability and simulation accuracy, the value optimization method of the virtual impedance was proposed. The simulation models of the hybrid simulation systems for a simple power system and a MMC-HVDC system were established, and the steady-state simulation results of different power interface modeling methods were compared, to prove the correctness and effectiveness of the proposed method in simultaneously improving the stability and accuracy of a hybrid simulation system.
引文
[1]汤广福,贺之渊,庞辉,等.柔性直流输电工程技术研究、应用及发展[J].电力系统自动化,2013,37(15):3-14.Tang Guangfu,He Zhiyuan,Pang Hui,et al.Research,application and development of VSC-HVDC engineering technology[J].Automation of Electric Power Systems,2013,37(15):3-14(in Chinese).
[2]仉雪娜,赵成勇,庞辉,等.基于MMC的多端直流输电系统直流侧故障控制保护策略[J].电力系统自动化,2013,37(15):140-145.Zhang Xuena,Zhao Chengyong,Pang Hui,et al.A control and protection scheme of multi-terminal DC transmission system based on MMC for DC line fault[J].Automation of Electric Power Systems,2013,37(15):140-145(in Chinese).
[3]贺之渊,刘栋,庞辉.柔性直流与直流电网仿真技术研究[J].电网技术,2018,42(1):1-12.He Zhiyuan,Liu Dong,Pang Hui.Research of simulation technologies of VSC-HVDC and DC grids[J].Power System Technology,2018,42(1):1-12(in Chinese).
[4]刘栋,汤广福,贺之渊,等.模块化多电平柔性直流输电数字-模拟混合实时仿真技术[J].电力自动化设备,2013,33(2):68-73,80.Liu Dong,Tang Guangfu,He Zhiyuan,et al.Hybrid real-time simulation technology for MMC-HVDC[J].Electric Power Automation Equipment,2013,33(2):68-73,80(in Chinese).
[5]周俊,郭剑波,胡涛,等.高压直流输电系统数字物理动态仿真[J].电工技术学报,2012,27(5):221-228.Zhou Jun,Guo Jianbo,Hu Tao,et al.Digital/analog dynamic simulation for?500k V HVDC transmission system[J].Transactions of China Electrotechnical Society,2012,27(5):221-228(in Chinese).
[6]Ren W,Sloderbeck M,Steurer M,et al.Interfacing issues in real-time digital simulators[J].IEEE Transactions on Power Delivery,2011,26(2):1221-1230.
[7]Kuffel R,Wierckx R P,Duchen H,et al.Expanding an analogue HVDC simulator's modelling capability using a real-time digital simulator(RTDS)[C]//Proceedings of the1st International Conference on Digital Power System Simulators.Texas,USA:IEEE,1995:199-204.
[8]胡昱宙,张沛超,方陈,等.功率连接型数字物理混合仿真系统(一)接口算法特性[J].电力系统自动化,2013,37(7):36-41.Hu Yuzhou,Zhang Peichao,Fang Chen,et al.Power hardware-in-the-loop simulation system part one characteristics of interface algorithms[J].Automation of Electric Power Systems,2013,37(7):36-41(in Chinese).
[9]胡昱宙,张沛超,包海龙,等.功率连接型数字物理混合仿真系统(二)适应有源被试系统的新型接口算法[J].电力系统自动化,2013,37(8):76-81.Hu Yuzhou,Zhang Peichao,Bao Hailong,et al.Power hardware-in-the-loop simulation system part two a novel interface algorithm adapted to active hardware-undertest[J].Automation of Electric Power Systems,2013,37(8):76-81(in Chinese).
[10]吴学光,刘昕,林畅,等.大规模多节点柔性直流控制保护仿真测试方法研究[J].电网技术,2017,41(10):3130-3139.Wu Xueguang,Liu Xin,Lin Chang,et al.Research on modelling and testing methods of large-scale VSC-HVDCcontrol and protection system[J].Power System Technology,2017,41(10):3130-3139(in Chinese).
[11]Hong Miao,Horie S,Miura Y,et al.A method to stabilize a power hardware-in-the-loop simulation of inductor coupled systems[C]//Proceeding of International Conference on Power System Transients.Kyoto,Japan:IEEE,2009:1-7.
[12]Lauss G,Lehfu?F,Viehweider A,et al.Power hardware in the loop simulation with feedback current filtering for electric systems[C]//Proceedings of the 37th Annual Conference of the IEEE Industrial Electronics Society.Melbourne,VIC,Australia:IEEE,2011:3725-3730.
[13]莫染.电力系统数字物理综合仿真接口方法[D].武汉:华中科技大学,2013.Mo Ran.Study on the interface methods of digitalphysical hybrid simulation in power system[D].Wuhan:Huazhong University of Science and Technology,2013(in Chinese).
[14]Paran S,Edrington C S,Vural B.Investigation of HILinterfaces in nonlinear load studies[C]//Proceedings of2012 North American Power Symposium.Champaign,IL,USA:IEEE,2012:1-6.
[15]Paran S,Edrington C S.Improved power hardware in the loop interface methods via impedance matching[C]//Proceedings of 2013 IEEE Electric Ship Technologies Symposium.Arlington,VA,USA:IEEE,2013:342-346.
[16]Paran S,Fleming F,Li D,et al.Utilization of adaptive PHIL interfaces for harmonic load cases[C]//Proceedings of the 40th Annual Conference of the IEEE Industrial Electronics Society.Dallas,TX,USA:IEEE,2015:3803-3808.
[17]李国庆,江守其,辛业春,等.柔性高压直流输电系统数字物理混合仿真功率接口及其算法[J].中国电机工程学报,2016,36(7):1915-1924.Li Guoqing,Jiang Shouqi,Xin Yechun,et al.A novel interface algorithm of power hardware-in-the-loop simulation for MMC-HVDC[J].Proceedings of the CSEE,2016,36(7):1915-1924(in Chinese).
[18]辛业春,江守其,李国庆,等.柔性直流输电系统数字物理混合仿真改进阻尼阻抗接口算法[J].电力系统自动化,2016,40(21):90-97.Xin Yechun,Jiang Shouqi,Li Guoqing,et al.Improved damping impedance interface algorithm of power hardware-in-the-loop simulation for flexible DCtransmission systems[J].Automation of Electric Power Systems,2016,40(21):90-97(in Chinese).
[19]许建中,李承昱,熊岩,等.模块化多电平换流器高效建模方法研究综述[J].中国电机工程学报,2015,35(13):3381-3392.Xu Jianzhong,Li Chengyu,Xiong Yan,et al.A review of efficient modeling methods for modular multilevel converters[J].Proceedings of the CSEE,2015,35(13):3381-3392(in Chinese).
[20]许建中,赵成勇,Gole A M,等.模块化多电平换流器戴维南等效整体建模方法[J].中国电机工程学报,2015,35(8):1919-1929.Xu Jianzhong,Zhao Chengyong,Gole A M,et al.Research on the Thevenin’s equivalent based integral modelling method of the modular multilevel converter(MMC)[J].Proceedings of the CSEE,2015,35(8):1919-1929(in Chinese).
[2]仉雪娜,赵成勇,庞辉,等.基于MMC的多端直流输电系统直流侧故障控制保护策略[J].电力系统自动化,2013,37(15):140-145.Zhang Xuena,Zhao Chengyong,Pang Hui,et al.A control and protection scheme of multi-terminal DC transmission system based on MMC for DC line fault[J].Automation of Electric Power Systems,2013,37(15):140-145(in Chinese).
[3]贺之渊,刘栋,庞辉.柔性直流与直流电网仿真技术研究[J].电网技术,2018,42(1):1-12.He Zhiyuan,Liu Dong,Pang Hui.Research of simulation technologies of VSC-HVDC and DC grids[J].Power System Technology,2018,42(1):1-12(in Chinese).
[4]刘栋,汤广福,贺之渊,等.模块化多电平柔性直流输电数字-模拟混合实时仿真技术[J].电力自动化设备,2013,33(2):68-73,80.Liu Dong,Tang Guangfu,He Zhiyuan,et al.Hybrid real-time simulation technology for MMC-HVDC[J].Electric Power Automation Equipment,2013,33(2):68-73,80(in Chinese).
[5]周俊,郭剑波,胡涛,等.高压直流输电系统数字物理动态仿真[J].电工技术学报,2012,27(5):221-228.Zhou Jun,Guo Jianbo,Hu Tao,et al.Digital/analog dynamic simulation for?500k V HVDC transmission system[J].Transactions of China Electrotechnical Society,2012,27(5):221-228(in Chinese).
[6]Ren W,Sloderbeck M,Steurer M,et al.Interfacing issues in real-time digital simulators[J].IEEE Transactions on Power Delivery,2011,26(2):1221-1230.
[7]Kuffel R,Wierckx R P,Duchen H,et al.Expanding an analogue HVDC simulator's modelling capability using a real-time digital simulator(RTDS)[C]//Proceedings of the1st International Conference on Digital Power System Simulators.Texas,USA:IEEE,1995:199-204.
[8]胡昱宙,张沛超,方陈,等.功率连接型数字物理混合仿真系统(一)接口算法特性[J].电力系统自动化,2013,37(7):36-41.Hu Yuzhou,Zhang Peichao,Fang Chen,et al.Power hardware-in-the-loop simulation system part one characteristics of interface algorithms[J].Automation of Electric Power Systems,2013,37(7):36-41(in Chinese).
[9]胡昱宙,张沛超,包海龙,等.功率连接型数字物理混合仿真系统(二)适应有源被试系统的新型接口算法[J].电力系统自动化,2013,37(8):76-81.Hu Yuzhou,Zhang Peichao,Bao Hailong,et al.Power hardware-in-the-loop simulation system part two a novel interface algorithm adapted to active hardware-undertest[J].Automation of Electric Power Systems,2013,37(8):76-81(in Chinese).
[10]吴学光,刘昕,林畅,等.大规模多节点柔性直流控制保护仿真测试方法研究[J].电网技术,2017,41(10):3130-3139.Wu Xueguang,Liu Xin,Lin Chang,et al.Research on modelling and testing methods of large-scale VSC-HVDCcontrol and protection system[J].Power System Technology,2017,41(10):3130-3139(in Chinese).
[11]Hong Miao,Horie S,Miura Y,et al.A method to stabilize a power hardware-in-the-loop simulation of inductor coupled systems[C]//Proceeding of International Conference on Power System Transients.Kyoto,Japan:IEEE,2009:1-7.
[12]Lauss G,Lehfu?F,Viehweider A,et al.Power hardware in the loop simulation with feedback current filtering for electric systems[C]//Proceedings of the 37th Annual Conference of the IEEE Industrial Electronics Society.Melbourne,VIC,Australia:IEEE,2011:3725-3730.
[13]莫染.电力系统数字物理综合仿真接口方法[D].武汉:华中科技大学,2013.Mo Ran.Study on the interface methods of digitalphysical hybrid simulation in power system[D].Wuhan:Huazhong University of Science and Technology,2013(in Chinese).
[14]Paran S,Edrington C S,Vural B.Investigation of HILinterfaces in nonlinear load studies[C]//Proceedings of2012 North American Power Symposium.Champaign,IL,USA:IEEE,2012:1-6.
[15]Paran S,Edrington C S.Improved power hardware in the loop interface methods via impedance matching[C]//Proceedings of 2013 IEEE Electric Ship Technologies Symposium.Arlington,VA,USA:IEEE,2013:342-346.
[16]Paran S,Fleming F,Li D,et al.Utilization of adaptive PHIL interfaces for harmonic load cases[C]//Proceedings of the 40th Annual Conference of the IEEE Industrial Electronics Society.Dallas,TX,USA:IEEE,2015:3803-3808.
[17]李国庆,江守其,辛业春,等.柔性高压直流输电系统数字物理混合仿真功率接口及其算法[J].中国电机工程学报,2016,36(7):1915-1924.Li Guoqing,Jiang Shouqi,Xin Yechun,et al.A novel interface algorithm of power hardware-in-the-loop simulation for MMC-HVDC[J].Proceedings of the CSEE,2016,36(7):1915-1924(in Chinese).
[18]辛业春,江守其,李国庆,等.柔性直流输电系统数字物理混合仿真改进阻尼阻抗接口算法[J].电力系统自动化,2016,40(21):90-97.Xin Yechun,Jiang Shouqi,Li Guoqing,et al.Improved damping impedance interface algorithm of power hardware-in-the-loop simulation for flexible DCtransmission systems[J].Automation of Electric Power Systems,2016,40(21):90-97(in Chinese).
[19]许建中,李承昱,熊岩,等.模块化多电平换流器高效建模方法研究综述[J].中国电机工程学报,2015,35(13):3381-3392.Xu Jianzhong,Li Chengyu,Xiong Yan,et al.A review of efficient modeling methods for modular multilevel converters[J].Proceedings of the CSEE,2015,35(13):3381-3392(in Chinese).
[20]许建中,赵成勇,Gole A M,等.模块化多电平换流器戴维南等效整体建模方法[J].中国电机工程学报,2015,35(8):1919-1929.Xu Jianzhong,Zhao Chengyong,Gole A M,et al.Research on the Thevenin’s equivalent based integral modelling method of the modular multilevel converter(MMC)[J].Proceedings of the CSEE,2015,35(8):1919-1929(in Chinese).