Impact of power system network topology errors on real-time locational marginal price
Impact of power system network topology errors on real-time locational marginal price
复制标题
电力系统网络拓扑误差对实时位置边际电价的影响
DOI：
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
Le Xie
中科院分区：
文献类型：
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作者：
Dae;Le Xie
本文研究了实时电力市场中输电网拓扑结构变化对位置边际电价的影响。我们考虑旁路拓扑错误处理的断路器假状态会产生不正确的电力系统网络拓扑，从而扭曲状态估计和经济调度的结果。本文的主要目标是评估在网络拥塞的整个电力系统中，这种错误配置的网络拓扑对实时LMP的经济影响。为此，我们从之前的结果开始，这是一个简单的分析性拥堵价格方程，可以应用于任何单线拥堵场景。可以扩展这个方程，以便更好地理解由于任何线路状态错误而导致任何总线上的LMP变化的程度。此外，它可以严格分析任何总线上的LMP变化与任何线路错误和各种物理/经济电网条件（如边际发电机的投标价格和拥挤/错误线路的位置）之间的关系。给出了在IEEE 14总线和118总线系统中对这种拓扑误差影响分析的数值算例。
This paper examines the impact of power transmission network topology change on locational marginal price (LMP) in real-time power markets. We consider the case where the false status of circuit breakers (CBs) that bypass topology error processing can generate an incorrect power system network topology, subsequently distorting the results of the state estimation and economic dispatch. The main goal of this paper is to assess the economic impact of this misconfigured network topology on real-time LMP in an entire power system with network congestion. To this end, we start with our prior result, a simple and analytical congestion price equation, which can be applied to any single line congestion scenario. This equation can be extended to better understand the degree to which the LMP at any bus changes due to any line status error. Furthermore, it enables a rigorous analysis of the relationship between the change in LMP at any bus with respect to any line error and various physical/economical grid conditions such as the bidding prices for marginal generators and the locations of the congested/erroneous lines. Numerical examples on the impact analysis of this topology error are illustrated in IEEE 14-bus and 118-bus systems.