用于次同步振荡抑制的MMC的能量补偿控制
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摘要
次同步振荡是常见的电力系统稳定性问题之一。为了抑制次同步振荡,可以投入次同步阻尼控制器(SSDC),根据其输出改变直流系统的有功功率指令值,从而为交流系统提供正阻尼,但直流系统一端有功功率的振荡部分会传递到另一端交流网络上。为了在直流系统中补偿功率振荡部分的能量,暂态解耦直流系统,引入模块化多电平换流器(MMC)的能量控制方法,通过控制MMC桥臂电容器的能量来保证另一端系统的稳定。本文基于IEEE次同步谐振第一标准测试系统,设计了SSDC系统的参数和MMC的能量补偿控制,并在PSCAD仿真平台上验证了SSDC和能量补偿控制的有效性。
Sub-synchronous oscillation is one of the common problems of the power system stability. To suppress this oscillation,SSDC( sub-synchronous damping controller) can apply positive damping to the AC system through changing the DC system power reference,but the power oscillation component in this terminal will be transmitted to other AC systems. In order to compensate the energy of the power oscillation component and decouple DC system transiently,the energy-based control of MMC( modular multilevel converter) is used to ensure other system's stability by controlling the energy of MMC arm capacitors. Based on IEEE first benchmark model case for sub-synchronous resonance,this paper designs the SSDC with proper parameters and energy compensation control,and builds the simulation model on the PSCAD/EMTDC platform to verify the effectiveness of SSDC and energy compensation control.
Sub-synchronous oscillation is one of the common problems of the power system stability. To suppress this oscillation,SSDC( sub-synchronous damping controller) can apply positive damping to the AC system through changing the DC system power reference,but the power oscillation component in this terminal will be transmitted to other AC systems. In order to compensate the energy of the power oscillation component and decouple DC system transiently,the energy-based control of MMC( modular multilevel converter) is used to ensure other system's stability by controlling the energy of MMC arm capacitors. Based on IEEE first benchmark model case for sub-synchronous resonance,this paper designs the SSDC with proper parameters and energy compensation control,and builds the simulation model on the PSCAD/EMTDC platform to verify the effectiveness of SSDC and energy compensation control.
引文
[1]毕天姝,孔永乐,肖仕武,等(Bi Tianshu,Kong Yongle,Xiao Shiwu,et al.).大规模风电外送中的次同步振荡问题(Review of sub-synchronous oscillation with large-scale wind power transmission)[J].电力科学与技术学报(Journal of Electric Power Science and Technology),2012,27(1):10-15.
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[15]IEEE subsynchronous resonance task force.First benchmark model for computer simulation of subsynchronous resonance[J].IEEE Transactions on Power Apparatus and Systems,1977,96(5):1565-1572.
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[17]汪玉凤,王济东,佟丽新,等(Wang Yufeng,Wang Jidong,Tong Lixin,et al.).基于自适应准PR控制器的MMC环流控制策略研究(Research on MMC circulation control strategy based on adaptive quasi-PR controller)[J].电工电能新技术(Advanced Technology of Electrical Engineering and Energy),2018,37(12):24-31.
[18]卢绍强,王敏,张明兴,等(Lu Shaoqiang,Wang Min,Zhang Mingxing,et al.).基于测试信号法的电力系统次同步振荡分析(Subsynchronous oscillation analysis of power system based on test signal method)[J].电工电气(Electrotechnics Electric),2011,(10):46-48,62.
[19]汤广福(Tang Guangfu).基于电压源换流器的高压直流输电技术(HVDC transmission technology based on VSC)[M].北京:中国电力出版社(Beijing:China Electric Power Press),2010.
[20]杨柳,黎小林,许树楷,等(Yang Liu,Li Xiaolin,Xu Shukai,et al.).南澳多端柔性直流输电示范工程系统集成设计方案(The integrated system design scheme of Nan’ao VSC-HVDC demonstration project)[J].南方电网技术(Southern Power System Technology),2015,9(1):63-67.
[2]于海洋(Yu Haiyang).托克托电厂600MW机组抑制次同步振荡方法研究(Study on subsynchronous resonance mitigation of 600MW turbo-generator of Tuoketuo power plant)[D].保定:华北电力大学(Baoding:North China Electric Power University),2010.
[3]徐坤(Xu Kun).VSC-HVDC对次同步振荡抑制作用分析(Research on subsynchronous damping effect of VSC-HVDC)[D].北京:华北电力大学(Beijing:North China Electric Power University),2012.
[4]徐政(Xu Zheng).交直流电力系统动态特性行为分析(Dynamic characteristic behavior analysis of AC/DCpower system)[M].北京:水利电力出版社(Beijing:Water Resources and Electric Power Press),1994.
[5]郑超,汤涌,马世英,等(Zheng Chao,Tang Yong,Ma Shiying,et al.).基于等效仿真模型的VSC-HVDC次同步振荡阻尼特性分析(Subsynchronous oscillation damping characteristic analysis for VSC-HVDC based on its equivalent simulation model)[J].中国电机工程学报(Proceedings of the CSEE),2007,27(31):33-39.
[6]郭抒颖,韩民晓,黄永宁,等(Guo Shuying,Han Minxiao,Huang Yongning,et al.).基于Prony辨识的VSC-HVDC附加次同步阻尼控制器研究(VSC-HVDCadditional sub-synchronous damping controller design based on Prony identification)[J].电工电能新技术(Advanced Technology of Electrical Engineering and Energy),2019,38(4):39-46.
[7]蒋平,胡弢,吴熙(Jiang Ping,Hu Tao,Wu Xi).VSC-HVDC多通道附加阻尼控制抑制次同步振荡(Multi-channel supplementary damping control in VSC-HVDC for SSO suppression)[J].电力自动化设备(Electric Power Automation Equipment),2011,31(9):27-31.
[8]Hani Saad,Xavier Guillaud,Jean Mahseredjian,et al.MMC capacitor voltage decoupling and balancing controls[J].IEEE Transactions on Power Delivery,2015,30(2):704-712.
[9]Lennart Angquist,Antonios Antonopoulos,Daniel Siemaszko,et al.Open-loop control of modular multilevel converters using estimation of stored energy[J].IEEETransactions on Industry Applications,2011,47(6):2516-2524.
[10]Cui Shenghui,Kim Sungmin,Jung Jae-Jung,et al.Acomprehensive cell capacitor energy control strategy of a modular multilevel converter(MMC)without a stiff DCbus voltage source[A].2014 IEEE Applied Power Electronics Conference and Exposition[C].Fort Worth,USA,2014.602-609.
[11]Samimi Shabab,Gruson Fran9ois,Delarue Philippe,et al.MMC stored energy participation to the DC bus voltage control in an HVDC link[J].IEEE Transactions on Power Delivery,2016,31(4):1710-1718.
[12]Sánchez-Sánchez E,Prieto-Araujo E,Junyent-FerréA,et al.Analysis of MMC energy-based control structures for VSC-HVDC links[J].IEEE Journal of Emerging and Selected Topics in Power Electronics,2018,6(3):1065-1076.
[13]Barker C D,Whitehouse R S,Adamczyk A G,et al.Low frequency active power oscillation damping using a MMC-VSC HVDC link[A].13th IET International Conference on AC and DC Power Transmission[C].Manchester,UK,2017.1-6.
[14]Taffese Abel A,Tedeschi Elisabetta,de Jong Eric.Acontrol scheme for utilizing energy storage of the modular multilevel converter for power oscillation damping[A].2017 IEEE 18th Workshop on Control and Modeling for Power Electronics(COMPEL)[C].Stanford,USA,2017.1-8.
[15]IEEE subsynchronous resonance task force.First benchmark model for computer simulation of subsynchronous resonance[J].IEEE Transactions on Power Apparatus and Systems,1977,96(5):1565-1572.
[16]吕泳庆,邓富金,王青松,等(Lv Yongqing,Deng Fujin,Wang Qingsong,et al.).基于单相矢量控制的MMC环流抑制策略(Circulating current elimination strategy for MMCs based on single phase vector control)[J].电工电能新技术(Advanced Technology of Electrical Engineering and Energy),2018,37(6):18-24.
[17]汪玉凤,王济东,佟丽新,等(Wang Yufeng,Wang Jidong,Tong Lixin,et al.).基于自适应准PR控制器的MMC环流控制策略研究(Research on MMC circulation control strategy based on adaptive quasi-PR controller)[J].电工电能新技术(Advanced Technology of Electrical Engineering and Energy),2018,37(12):24-31.
[18]卢绍强,王敏,张明兴,等(Lu Shaoqiang,Wang Min,Zhang Mingxing,et al.).基于测试信号法的电力系统次同步振荡分析(Subsynchronous oscillation analysis of power system based on test signal method)[J].电工电气(Electrotechnics Electric),2011,(10):46-48,62.
[19]汤广福(Tang Guangfu).基于电压源换流器的高压直流输电技术(HVDC transmission technology based on VSC)[M].北京:中国电力出版社(Beijing:China Electric Power Press),2010.
[20]杨柳,黎小林,许树楷,等(Yang Liu,Li Xiaolin,Xu Shukai,et al.).南澳多端柔性直流输电示范工程系统集成设计方案(The integrated system design scheme of Nan’ao VSC-HVDC demonstration project)[J].南方电网技术(Southern Power System Technology),2015,9(1):63-67.