中文摘要：

风光储联合电站集合了风电、光伏和储能单元等不同种类电源,其有功协调控制是电站运行的关键技术。实际运行中出现了有功控制的响应迟滞＂拖尾现象＂,即电站有功指令下达后,各类型电源响应时间参差不齐,整体呈现拖尾延时和控制量响应误差大的现象。论文根据风光储联合电站的分层控制结构和通信系统特点,开展了全站和3个风电机组群的有功控制试验,分析了电站的出力特性和响应迟滞＂拖尾现象＂产生的主要原因。进一步从有功指令分配、指令周期调整和储能子站利用3个方面提出了风光储联合电站有功控制的改进策略,并仿真验证了其对＂拖尾现象＂的改善效果。

英文摘要：

Hybrid wind-PV-ES power system contains various types of generators, including wind generators, PV modules and energy storage batteries. Coordinated control of various generators is crucially important. Active power command response times of these generators are usually not coincidental, resulting in delayed response and big deviation of system control, called ＂tailing phenomenon＂. Based on characteristics of multilayer control system and communication system, the phenomenon is verified with active power control tests performed in a hybrid power system with three wind turbine groups. Characteristics of active power command response and main reasons causing the phenomenon are discussed. Corresponding optimization strategies for ＂tailing phenomenon＂ are proposed in three aspects, including active power command allocation, command cycle time adjustment and utilization of energy storage system. Case study shows efficiency of the proposed strategies.