基于超导储能系统的风电场功率控制系统设计

风电场输出功率的波动性和间歇性会给电网带来不利的影响。为了降低风电场并网对电能质量的影响，文中阐述了一种基于超导储能系统的抑制风电场功率波动的间接控制方法。利用超导储能系统的四象限功率运行能力来补偿风电场输出的有功和无功功率波动，并抑制由此产生的电网电压波动;通过合理设计超导储能系统功率调节器的带宽来优化储能量。通过对风电场连接于弱电网的仿真，验证了所提出的功率控制策略的有效性。

Design of SMES Control System for Smoothing Power Fluctuations in Wind Farms

Variability in power output is a characteristic of wind energy,which results in an adverse impact on the power system.In order to reduce the wind power impact on the power quality,this paper proposes an independent power control strategy based on superconducting magnetic energy storage(SMES)to smooth short-term fluctuations in wind farm outputs.Fluctuations in the active and reactive power of a wind farm are compensated with four-quadrant power operation of SMES.The system voltage fluctuations are also damped by this way.The energy storage is optimized by properly designing the bandwidth of SMES power regulator.Simulation results show the effectiveness of the control strategy of SMES.