摘要
分布式风电的出力概率与受端负荷的季节性变化规律往往不一致,为了实现风电出力恰好完全平衡接入点负荷,以华能陕西狼尔沟9MW分布式示范风电场为例,基于数学排列组合思想,优化了风机汇集方案,改进了升压站电气主接线,提出一种分组可调的分散并网方案。该方案通过优化风机组合汇集方案和变换电气主接线来改变不同并网点的接入风电容量,以适应电网负荷的季节性变化,解决了单点集中并网方案不能满足不同运行方式下风电出力不上网的问题,且对配电网有电压支撑效益。同时,提出该方案推广应用至大型分布式风电场的风机组合汇集方案和改进电气主接线的构想,对分布式风电并网策略研究有重要意义。
The season variation between distributed wind power output probabilities and receiving end loads is inconsistent. Based on Huaneng Shaanxi Langergou distributed demonstration wind farm, this paper proposed a dispersal access program for distributed wind farms to achieve a complete balance between wind power output and access point load. This program can change wind power capacity at different access points by optimizing wind generation compilation and main electrical wiring to adapt to the season variations of grid loads, solve the problem that single point access scheme can＇t meet the condition of wind power output not into grid in different operating modes, and provide voltage support for distributed grid. In addition, this paper presented a conception of optimizing combination plan and improving main electrical wiring for large scale distributed wind farm, which had enlightening significance to distributed wind power research.
出处
《电力建设》
2012年第5期17-20,共4页
Electric Power Construction
基金
甘肃省电力公司科技攻关项目(2011101026)
关键词
分布式风电
分散接入
分组可调
就地平衡
电压支撑
distributed wind power
dispersive access
group adjustable
on-site balance
voltage support
