研究分布式储能直流微电网的控制策略
Qiang Li1, Feng Zhao2, Li Zhuang3
1State Grid Information and Telecommunication Co., Ltd., Beijing, 102211, China. li_qiang_xc@163.com.
Scientific reports
|November 23, 2023
概括
分布式储能稳定了直流微电网与波动的新能源. 一个协调的控制策略和优化的调度确保了电压稳定性和高效的电力分配,提高了微电网的整体性能.
科学领域:
- 电气工程 电气工程
- 可再生能源系统可再生能源系统
- 控制系统 控制系统
背景情况:
- DC微电网越来越多地与大型电网集成,利用新的能源.
- 新能源产量的波动给直流微电网带来了稳定性挑战.
- 分布式储能系统 (DESS) 对于减轻这些波动至关重要.
研究的目的:
- 设计一个AC-DC混合微电网拓,结合新能源和DESS.
- 为微电网稳定性和电力共享提出协调控制战略.
- 以最低的成本优化储能电站的运行时间表.
主要方法:
- 设计了一个AC-DC混合微电网拓与分布式新能源和DESS.
- 开发了AC/DC转换器的协调控制策略,以确保电压稳定性和功率共享.
- 采用了改进的粒子群优化算法,以优化储能调度成本.
- 在Matlab/Simulink环境中模拟了微电网系统.
主要成果:
- 拟议的协调控制策略有效地保持了直流总线电压稳定性.
- 该系统在不同站点之间展示了强大的电力共享能力.
- 优化的调度方案大大降低了储能电站的运营成本.
- 模拟结果验证了设计的微电网系统和控制策略的有效性.
结论:
- 开发的协调控制战略有效地稳定了具有高新能源透率的AC-DC混合微电网.
- 分布式储能系统的优化调度对于经济高效和稳定的微电网运行至关重要.
- 提出的方法为提高现代电网的可靠性和效率提供了可行的解决方案.
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