System frequency regulation in Singapore using distributed energy storage systems

Yu Wang, Hongchang Li, Yan Xu, Yi Tang
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引用次数: 13

Abstract

In this paper, distributed energy storage systems (DESSs) for power system frequency regulation are investigated. Due to the fact that above 95% of the electricity in Singapore is generated by combined cycle gas turbines (CCGTs), the system frequency model of Singapore based on CCGT is developed. The DESSs are utilized for system frequency regulation hierarchically. At the decentralized control level, the droop-based frequency regulation is achieved autonomously by each DESS. In the meanwhile, the virtual inertia control has been added to each DESS to further improve the frequency response. The automatic generation control i.e. secondary frequency regulation which aims to recover the frequency back to the nominal value is achieved in a distributed way through communication networks. The entire frequency regulation structure improves the frequency response of the power system caused by load and generation variations under different operation conditions. The proposed method is evaluated in the established Singapore power system model and the simulation results validate the effectiveness of the proposed method.
新加坡使用分布式储能系统的系统频率调节
本文研究了用于电力系统频率调节的分布式储能系统(DESSs)。由于新加坡95%以上的电力是由联合循环燃气轮机(CCGT)产生的,因此建立了基于联合循环燃气轮机的新加坡系统频率模型。利用dess分层次进行系统频率调节。在分散控制层面,每个DESS自主实现基于下垂的频率调节。同时,在每个DESS中加入了虚拟惯性控制,进一步改善了频率响应。自动发电控制即二次频率调节,其目的是将频率恢复到标称值,通过通信网络以分布式方式实现。整个调频结构改善了电力系统在不同运行条件下因负荷和发电量变化引起的频率响应。在已建立的新加坡电力系统模型中对所提方法进行了评估,仿真结果验证了所提方法的有效性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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