LIU Lin.Active power control in photovoltaic power plants[J].Thermal Power Generation,2015,(11):104-108.
光伏电站有功功率优化分配
- Title:
- Active power control in photovoltaic power plants
- 分类号:
- TM615; TP272
- 文献标志码:
- B
- 摘要:
- 由于光伏发电的波动性、间歇性,使得电网的总负荷具有时变性和随机性。对此,基于光伏电站的结构和有功功率控制原理,结合光伏逆变器运行特性,提出了有功功率优化分配策略,通过确定功率分配范围、有功功率增/减裕度等方法将设定功率分配至各光伏逆变器,并使其准确地跟踪设定值。仿真结果表明:该策略在光伏电站设定功率小于预测输出功率时,光伏电站的输出功率能够准确地跟踪设定值; 当设定功率大于预测功率时,光伏电站则以最大功率跟踪方式输出有功功率。同时,该策略可避免光伏逆变器的频繁启停,平衡其运行时间,提高其使用寿命。
参考文献/References:
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备注/Memo
刘琳(1984—),男,主要从事继电保护技术的研究及电网调度。