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The Control Strategy of Energy Storage System for Primary Frequency Regulation and Wind Power Ramp Control

机译：一次调频和风电斜坡控制的储能系统控制策略

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摘要

Wind power ramp events seriously affect the active power balance. On the other hand, system frequency stability is seriously weakened by large-scale wind power. Therefore, the stable operation of power systems is threatened. In order to effectively alleviate wind power ramp events and suppress frequency deviation, in this paper, the control strategy of energy storage system for primary frequency regulation and wind power ramp control is proposed. The control framework of wind farm and energy storage system is constructed. In this framework, wind power change is compensated by the charge and discharge of energy storage system to meet the demand of wind power ramp control. Besides, frequency deviation is suppressed through responding to frequency deviation signal by energy storage system. Therefore, the proposed control strategy can guarantee that energy storage system effectively participates in frequency regulation and alleviate the wind power ramp events simultaneously. Finally, simulation results on an interconnected two-area power system show the effectiveness of the proposed control strategy in restraining the wind power ramp and enhancing the frequency stability of the system
机译：风电斜坡事件严重影响有功功率平衡。另一方面，大规模的风力发电严重削弱了系统的频率稳定性。因此，威胁到电力系统的稳定运行。为了有效缓解风电斜坡事件并抑制频率偏差，本文提出了一次调频和风电斜坡控制的储能系统控制策略。建立了风电场和储能系统的控制框架。在这种框架下，风能的变化可以通过储能系统的充放电来补偿，以满足风能斜坡控制的需求。此外，储能系统通过响应频率偏差信号来抑制频率偏差。因此，所提出的控制策略可以保证储能系统有效地参与频率调节并同时缓解风电斜坡事件。最后，在互联的两区域电力系统上的仿真结果表明，所提出的控制策略在抑制风电斜率和增强系统的频率稳定性方面是有效的。

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