风-蓄混合孤立发电系统的运行控制

摘要

The influence of the wind fluctuations and load disturbance on the wind turbine generator system stability can be suppressed by insert storage device into wind power isolated generation system.The control method of islanded power system based on wind-battery hybrid generation is researched deeply. The maximum power tracking control strat egy and the power decoupling control strategy based on static flux orientation of DFIG are studied.The control method for the power converter to maintain the isolated system voltage and frequency stability is also studied.An islanded power down-scale system based on wind-battery hybrid generation is built to prove the theory,the experimental results prove that the wind power isolated generation system with energy storage system can improve the voltage and frequen cy stability of isolated power system.%在风电孤立发电系统中接入储能设备,可抑制风能波动和负荷扰动对系统稳定性的影响.在此深入研究了风-蓄混合孤立发电系统的运行控制,包括双馈风力发电机组的最大功率跟踪控制、双馈风机的定子磁链定向有功、无功功率解耦矢量控制及功率调节器有功、无功功率控制.搭建了风-蓄混合孤立发电实验系统,实验结果证明,将了储能设备接入风电孤立发电系统,可有效提高系统稳定性.