Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

Article retrieval

文章检索

首页 >> 文章检索 >> 往年索引

基于背靠背MMC的柔性互联变电站系统小信号模型

来源:电工电气发布时间:2023-04-26 10:26 浏览次数:388

基于背靠背MMC的柔性互联变电站系统小信号模型

班国邦1,2,钟九牧3,袁旭峰3,辛晓云3,马晓红1,2,欧阳泽宇1,2
(1 贵州电网有限公司电力科学研究院,贵州 贵阳 550002;
2 南方电网公司防冰减灾重点实验室,贵州 贵阳 550002
3 贵州大学 电气工程学院,贵州 贵阳 550025)
 
    摘 要:介绍动态系统的 Lyapunov 线性化方法,并依此作为理论依据对柔性互联变电站 (FIPS) 中双端背靠背模块化多电平换流器 (MMC) 和控制系统进行建模;考虑到变电站作为交、直流系统连接的关键节点,将模型拓展至交、直流系统,再将各部分模型整合到一起构成基于背靠背 MMC 的 FIPS 系统小信号模型,即整体模型包括 MMC、控制系统、交流系统和直流系统四个部分。通过 MATLAB 实现所得全局系统的小信号模型,并在不同工况下与 PSCAD/EMTDC 暂态模型所得波形进行对比,验证了所建小信号模型的准确性。
    关键词: 模块化多电平换流器;柔性互联变电站;小信号模型;Lyapunov 线性化方法
    中图分类号:TM46 ;TM63     文献标识码:A     文章编号:1007-3175(2023)04-0012-09
 
Small Signal Model of Flexible Interconnected Power
Station Based on Back-to-Back MMC
 
BAN Guo-bang1,2, ZHONG Jiu-mu3, YUAN Xu-feng3, XIN Xiao-yun3, MA Xiao-hong1,2, OUYANG Ze-yu1,2
(1 Guizhou Electric Power Research Institute, Guiyang 550002, China;
2 Southern Power Grid Company Key Laboratory of Ice Prevention and Mitigation, Guiyang 550002, China;
3 College of Electrical Engineering, Guizhou University, Guiyang 550025, China)
 
    Abstract: Lyapunov linearization method of the dynamic systems is introduced, and it is used as the theoretical basis to model for twoend back-to-back Modular Multilevel Converter(MMC) and control system in the Flexible Interconnected Power Substation(FIPS). As the substation is the key node to connect AC and DC system, the paper first extends the model to AC and DC system, and then integrates all parts of models to construct the small signal model of FIPS system based on back-to-back MMC. Therefore, the whole model includes MMC, control system, AC system and DC system.The paper compares the small signal model of the global system obtained from MATLAB with the waveforms obtained from PSCAD/EMTDC transient models under various working conditions, and verifies the accuracy of the small signal model.
    Key words: modular multilevel converter; flexible interconnected power substation; small signal model; Lyapunov linearization method
 
参考文献
[1] WU Tonghua, ZHENG Yuping, WU Hongbin, et al.Power Transfer and Multi-Control Mode of a Distribution Network Based on a Flexible Interconnected Device[J].IEEE Access,2019,7:148326 148335.
[2] 姚良忠,吴婧,王志冰,等. 未来高压直流电网发展形态分析[J] . 中国电机工程学报,2014,34(34):6007-6020.
[3] 曹靖洺,董朝宇,肖迁,等. 考虑控制与通信多成分时滞的多端 MMC-HVDC 信息物理系统统一建模与互联稳定性分析[J] . 中国电机工程学报,2021,41(10):3547-3560.
[4] GONTIJO G, WANG Songda, KEREKES T, et al.Performance Analysis of Modular Multilevel Converter and Modular Multilevel Series Converter under Variable-Frequency Operation Regarding Submodule-Capacitor Voltage Ripple[J].Energies,2021,14(3):776.
[5] STEPANOV A, MAHSEREDJIAN J, KARAAGAC U, et al.Adaptive Modular Multilevel Converter Model for Electromagnetic Transient Simulations[C]//2021 IEEE Power & Energy Society General Meeting (PESGM),2021.
[6] 万磊,汤涌,吴文传. 考虑锁相环动态的 MMC-HVDC 机电暂态模型[J]. 中国电机工程学报,2022,42(7):2566-2577.
[7] 鲁晓军,林卫星,向往,等. 基于模块化多电平换流器的直流电网小信号建模[J] . 中国电机工程学报,2018,38(4):1143-1156.
[8] 李探,ANIRUDDHA M G,赵成勇. 考虑内部动态特性的模块化多电平换流器小信号模型[J] . 中国电机工程学报,2016,36(11):2890-2899.
[9] LIU S, XU Z, HUA W, et al.Electromechanical Transient Modeling of Modular Multilevel Converter Based Multi-Terminal HVDC Systems[C]//2014 IEEE PES General Meeting|Conference & Expostion, 2014.
[10] LUDOIS D C, VENKATARAMANAN G.Simplified terminal behavioral model for a modular multilevel converter[J].IEEE Transactions on Power Electronics,2014,29(4):1622-1631.
[11] 连攀杰,刘文焯,杨泽栋,等. 混合型 MMC 全状态高效电磁暂态仿真方法研究[J] . 中国电机工程学报,2021,41(24):8520-8531.
[12] 叶杰,汤广福,赵成勇. 多电压等级柔性直流电网建模与稳定性分析[J] . 高电压技术,2022,48(4):1433-1441.
[13] 喻悦箫,刘天琪,王顺亮,等. 基于平均值模型的双端 MMC-HVDC 系统小信号建模[J]. 中国电机工程学报,2018,38(10):2999-3006.
[14] 张鹏,李慧,刘思嘉,等. 柔性直流电网小干扰稳定性分析[J] . 电力系统及其自动化学报,2020,32(8):17-25.
[15] 金阳忻,徐习东. 采用下垂控制的直流配电网小干扰稳定性分析[J] . 电力系统自动化,2016,40(14):78-85.
[16] 屠卿瑞,徐政,郑翔,等. 模块化多电平换流器型直流输电内部环流机理分析[J] . 高电压技术,2010,36(2):547-552.
[17] ZHOU J Z, DING H, FAN S T, et al.Impact of short-circuit ratio and phase-locked-loop parameters on the small-signal behavior of a VSC-HVDC converter[J].IEEE Transactions on Power Delivery,2014,29(5):2287-2296.
[18] XU Jianzhong, GOLE A M, ZHAO Chengyong.The use of averaged-value model of modular multilevel converter in DC grid[J].IEEE Transactions on Power Delivery,2015,30(2):519-528.