同步发电机模型在MMC并网控制中的应用Application of Synchronous Generator′s Model in Grid-connected Control of MMC
刘喜梅,陈朋,张群,赵倩
摘要(Abstract):
为了实现模块化多电平换流器MMC(modular multilevel converte)r快速、平滑并网,该文将同步发电机模型与同步发电机准同步并网原理应用于MMC并网控制。先对同步发电机进行建模,根据MMC的原理及其控制原则确定控制策略,并结合同步发电机模型设计控制器控制MMC输送到电网的功率,实现功率跟踪;引入同步发电机准同步并网原理,根据锁相环PLL(phase locked loop)检测到的电网电压与MMC输出电压的相位信息自动搜寻最佳合闸时间,控制MMC在最佳时刻平滑并入电网,实现友好并网。MATLAB/Simulink仿真结果验证了该控制策略的正确性和有效性。
关键词(KeyWords): 模块化多电平;同步发电机;准同步;并网
基金项目(Foundation): 山东省自然科学基金项目(Y2008G14)
作者(Author): 刘喜梅,陈朋,张群,赵倩
参考文献(References):
- [1]黄汉奇,毛承雄,王丹,等(Huang Hanqi,Mao Chengx-iong,Wang Dan,et al).可再生能源分布式发电系统建模综述(Modeling summarizing of distributed renewableenergy power generation system)[J].电力系统及其自动化学报(Proceedings of the CSU-EPSA),2010,22(5):1-18,24.
- [2]刘钟淇,宋强,刘文华(Liu Zhongqi,Song Qiang,LiuWenhua).基于模块化多电平变流器的轻型直流输电系统(VSC-HVDC system based on modular multilevel con-verters)[J].电力系统自动化(Automation of Electric Pow-er Systems),2010,34(2):53-58.
- [3]汤广福.基于电压源换流器的高压直流输电技术[M].北京:中国电力出版社,2010.
- [4]Marquardt R,Lesnicar A.New concept for high voltage-modular multilevel converter[C]//IEEE Power ElectronicsSpecialists Conference.Aachen,Germany:2004.
- [5]Vasiladiotis M.Analysis,Implementation and Experimen-tal Evaluation of Control Systems for a Modular MultilevelConverter[D].Sweden:Department of Electrical Engineer-ing of Royal Institute of Technology,2009.
- [6]刘钟淇,宋强,刘文华(Liu Zhongqi,Song Qiang,LiuWenhua).新型模块化多电平变流器的控制策略研究(Research on control of the novel modular multilevel con-verters)[J].电力电子技术(Power Electronics),2009,43(10):5-7,18.
- [7]Dorn J,Huang H,Retzmann D.Novel voltage source con-verters of HVDC and FACTS applications[C]//CIGRE In-ternational Symposium Conference.Osaka,Japan:2007.
- [8]Zhong Qing-Chang,Weiss G.Synchronverters:invertersthat mimic synchronous generators[J].IEEE Trans on In-dustrial Electronics,2011,58(4):1259-1267.
- [9]房大中,贾宏杰.电力系统分析[M].北京:科学出版社,2010.
- [10]卓乐友,叶念国,翁乐阳,等.微机型自动准同步装置的设计与应用[M].北京:中国电力出版社,2002.
- [11]徐敏,彭瑜(Xu Min,Peng Yu).MATLAB在《电力系统分析》教学中的应用(Applications of MATLAB in teachingof
)[J].电力系统及其自动化学报(Proceedings of the CSU-EPSA),2010,22(3):152-155. - [12]程军照,李澍森,张腾飞(Cheng Junzhao,Li Shusen,Zhang Tengfei).多路并网光伏发电系统的仿真与分析(Simulations and analysis on a multi-branch grid-con-nected photovoltaic system)[J].电力系统及其自动化学报(Proceedings of the CSU-EPSA),2009,21(4):58-62.