飞轮电池提高离网型风力发电系统稳定性研究

The flywheel battery improve the stability of stand-alone wind power system

针对目前风力发电系统中储能装置(化学电池)的不足,设计了采用飞轮电池作为离网型风力发电系统的储能装置,提出了飞轮电池快速充、放电的控制策略。在系统的充电方式下,采用了感应电机的矢量控制算法;放电方式下,采用了以直流母线电压为控制信号的控制策略实现了直流母线电压的自动调整,达到了稳定系统的直流母线电压的目的。仿真结果表明,该储能装置能实现稳定风电场直流母线电压的作用,从而有效地提高离网型风电场的电能质量和稳定性。

Aiming at the wind power system energy storage device （chemical battery） insufficiency, design the flywheel battery as energy storage device of stand-alone wind power systems, puts forward the flywheel battery charger, fast discharge control strate- gy. In the system of charging method, used the induction motor vector control algorithm; Discharge under way, using a DC bus voltage of control signal control strategy of the dc bus voltage to realize the automatic adjustment, stable system to the DC bus voltage purpose. The simulation results show that the energy storage device of the stand-alone wind power systems can realize the stable DC bus voltage role wind farms, so as to effectively improve quality and stability of stand-alone wind power system.