摘要
用户负荷特性的改变和电力电子技术的发展使得直流配电网重新得到重视。构建了一种含分布式风电的新型交直流混合配电网,分析了传统配电网中风电场母线电压波动的原因,提出了适合交直流混合配电网特性且能够稳定风电场母线电压的控制策略。在PSCAD/EMTDC中建立了风电场交直流混合配电网的仿真模型,对所提出的控制方法进行验证。结果表明,与传统配电网相比,新型交直流混合配电网能更好地消纳风电波动功率,且风电场母线电压稳定性更好。
The change of user load characteristic and the development of power electronic technology make DC distribution network to get attention. This paper constructs a newtype of AC/DC hybrid distribution network which contains distributed wind power,analyzes the cause of the bus voltage fluctuation and proposes the control strategy suitable for the features of AC/DC hybrid distribution network,which can stabilize the bus voltage of wind farm. We establish the simulation model of AC/DC hybrid distribution network with wind farm in PSCAD/EM TDC,and verify the proposed control method. The results showthat, compared with the traditional distribution network, the newAC/DC hybrid distribution network can better absorb wind wave power and the bus voltage stability of wind farm is better.
出处
《电力建设》
北大核心
2016年第5期63-68,共6页
Electric Power Construction
基金
中国电力科学研究院实验室开放基金项目(YD83-16-037)
关键词
交直流混合配电网
电压波动
风电场
控制策略
AC/DC hybrid distribution network
voltage fluctuation
wind farm
control strategy
