并网变速恒频风力发电系统动态仿真建模及控制  

Dynamic modeling and control of variable speed constant frequency wind energy generation system connected to grid

作　　者：李程昊[1] 王李东[2] 林卫星[1] 文劲宇[1] 

机构地区：[1]华中科技大学强电磁工程与新技术国家重点实验室,湖北武汉430074 [2]中国长江电力股份有限公司,湖北宜昌443002

出　　处：《电力科学与技术学报》2013年第3期5-15,共11页Journal of Electric Power Science And Technology

基　　金：国家自然科学基金重点项目(50937002);国家重点基础研究发展计划(“973”计划)(2012CB215104)

摘　　要：数字仿真是研究风力发电机组动态特性及其与电网相互作用的重要手段,控制策略对变速恒频风力发电系统的特性起决定性的作用.然而,目前对于并网风电机组的动态建模还没有公认的统一模型.针对基于双馈感应发电机和永磁同步发电机的2种常见风力发电系统,从大量文献中整理出一套适用于动态仿真研究的简明模型,包括风轮机、DFIG和PMSG的模型及其控制策略,并以风电机组低电压穿越和惯性控制为例简述模型的应用方法.在实际使用该模型时,可以根据具体研究需要,对模型各环节进行进一步简化或细化.Digital simulation is one of the most important ways to study dynamics of wind energy generation system （WEGS） and its interaction with power system. Operation features of variable speed constant frequency （VSCF） wind turbine system are determined by control strategies. Since there was no standard model for WEGS, based on lots of literatures, a general WEGS model for simulation study is presented in this paper, which includes mathematical models and control methods of wind turbine, doubly-fed induction generator, permanent magnet synchronous generator. And the concepts of low voltage ride through and inertia response control for VSCF WEGS are discussed briefly based on the proposed model. The general model can be more simplilied or detailed according to specific research.

关 键 词：风力发电 动态仿真建模 变流器控制 低电压穿越 惯性控制 

分 类 号：TM72[电气工程—电力系统及自动化] TM93