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基于成本-价值解耦的源-荷备用协同优化

DOI: 10.13334/j.0258-8013.pcsee.2015.20.009, PP. 5188-5198

Keywords: 备用配置,动态经济调度,源-荷协同,负荷恢复,网络约束,成本-价值解耦

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Abstract:

电力系统运行需要兼顾可靠性与经济性,优化备用配置是其中的关键。随着负荷侧响应技术的发展,可控负荷成为一种重要的备用资源,需要与发电侧备用协同优化。文中在动态经济调度的框架下,提出了基于成本-价值解耦的源-荷备用协同优化方法。优化模型包含负荷侧备用的恢复过程,反映了不同负荷的物理特性;且计及网络约束,避免线路阻塞引起备用失效。设计了解耦算法求解该优化模型,主问题实现备用经济性配置,子问题实现备用可靠性校核。在子问题中,引入不可传输度反映备用价值并形成价值割,之后向主问题返回价值割,迭代求解,协调可靠性与经济性。IEEERTS96单区域系统的仿真结果表明该方法能够高效、灵活地协同优化配置源-荷备用。

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