摘要
当前,环境污染问题日益受到关注。风力发电是实现风能开发利用的有效方式,改进常规控制策略提升机组低压穿越能力具有重要意义。随着风电穿透率的提高,风电并网电压无功控制十分重要,双馈异步发电机无功率控制成为电力系统稳定控制的关键技术。随着风电接入容量的增大,开展风电场等值建模方面的工作具有重要意义。文章研究了风电场双馈电机的结构原理,考虑网侧变换器无功发生能力,提出了对当地用户就近无功补偿策略。
The current issue of environmental pollution is receiving increasing attention,and wind power generation is an effective way to achieve the development and utilization of wind energy.Improving conventional control strategies to enhance the low voltage crossing capacity of units is very important.With the increase of wind power penetration rate,voltage and reactive power control of wind power grid connection is very important,and reactive power control of doubly fed asynchronous generators has become a key technology for power system stability control.With the increase of wind power access capacity,it is of great significance to carry out equivalent modeling work for wind farms.Research and introduce the structural principle of doubly fed induction motors in wind farms,consider the reactive power generation capacity of grid side converters,and propose a reactive power compensation strategy for local users.
作者
于大海
郝俊红
高严
YU Dahai;HAO Junhong;GAO Yan(Changchun Guanghua University,Changchun 130000,China)
关键词
双馈电机
风电场无功补偿
控制策略
doubly fed motor
wind farm reactive power compensation
control strategy
