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首页> 外文期刊>Electric power systems research >Two-stage optimization algorithm for short-term reactive power planning based on zonal approach
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Two-stage optimization algorithm for short-term reactive power planning based on zonal approach

机译：基于区域方法的短期无功规划两阶段优化算法

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摘要

There are various methods for procurement of reactive power as an ancillary service in deregulated market environment. Reactive power market model based on voltage control zones and two-step optimal power flow algorithm is proposed in this paper. Zones are formed by splitting the power system or a control area of an interconnected power system into autonomous voltage sub-areas with sufficient reactive power reserves using the electrical distance method. Every zone formes a single reactive power market. First step of an optimization algorithm determines zonal reactive power prices based on generator's cost functions for reactive power production. Total cost minimization is the goal of the second optimization step where the final dispatching decision is made according to transmission losses and zonal reactive power prices respecting power system planned conditions and security constraints. Proposed algorithm is tested on IEEE 39 bus test system ensuring the system operator's minimal payment for reactive power and transmission losses, without jeopardizing power system security.
机译：在放松管制的市场环境中，有多种方法来购买无功功率作为辅助服务。提出了一种基于电压控制区和两步最优潮流算法的无功市场模型。通过使用电气距离方法将电力系统或互连电力系统的控制区域划分为具有足够无功功率储备的自治电压子区域来形成区域。每个区域都构成一个无功市场。优化算法的第一步根据用于无功生产的发电机成本函数确定区域无功电价。总成本最小化是第二个优化步骤的目标，其中，根据输电损耗和区域无功电价（考虑到电力系统的计划条件和安全约束）做出最终调度决策。所提议的算法在IEEE 39总线测试系统上进行了测试，以确保系统操作员以最低的方式支付无功功率和传输损耗，而不会损害电力系统的安全性。

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