一种实用的风电场等值方法研究  

Research on a Practical Equivalence Method for Wind Farm

作　　者：辛拓[1] 申洪[2] 李扬絮[1] 杨银国[1] 易杨[1] 

机构地区：[1]广东电网电力调度控制中心,广东广州510600 [2]中国电力科学研究院,北京100192

出　　处：《广东电力》2012年第4期59-64,共6页Guangdong Electric Power

基　　金："十一五"国家科技支撑计划重大项目资助(200813AA14B01)

摘　　要：针对现有的大型风电场等值方法仅考虑风电场外部特性对等值模型的影响,忽略了风电场内部机组之间和风电场与并网近区系统之间的耦合关系,分析了风电场不同开机方式、不同单机出力功率对系统暂态稳定特性的影响,找到了描述风电并网对系统冲击最恶劣的风电场运行工况,提出基于该运行工况下的风电场简化等值方法,并以等值算例验证其有效性。The present equivalence method for large wind farm only considers impact of external characteristics of wind farm on equivalence model and ignores the coupled relation among units within the wind farm as well as wind farm and system near the integrated grid. influence of various start-up modes of the wind farm and output of different units on transient stability behavior of the system is profoundly analyzed. Operating condition that describes the most severe strike of wind power integration on the system is sought out. The simplified equivalence method for wind farm based on the operating condition is proposed and the effectiveness is verified by equivalence example.

关 键 词：大规模风电场 等值方法 风电场开机方式 风电机组运行点 暂态稳定 

分 类 号：TM714.2[电气工程—电力系统及自动化]