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首页> 外文期刊>IEEE Transactions on Power Systems >Two-Stage Dynamic Reactive Power Dispatch Strategy in Distribution Network Considering the Reactive Power Regulation of Distributed Generations
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Two-Stage Dynamic Reactive Power Dispatch Strategy in Distribution Network Considering the Reactive Power Regulation of Distributed Generations

机译：考虑分布式发电无功调节的配电网两阶段动态无功调度策略

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摘要

To solve the coordinated dispatch and time-space coupling problem in the distribution network with distributed generations (DGs), a novel two-stage (Heuristic search and Variable correction) dynamic reactive power dispatch strategy is proposed in this paper. Meanwhile, according to the analysis of Gauss-type and Z-type membership function, a new objective function is put forward to achieve the balance between network loss and voltage deviation. First, the pre-optimization is made in Niche genetic algorithm to coordinate on-load tap changer (OLTC), capacitor banks (CBs), and DGs. Second, the sequential fuzzy c-means (SFCM) based on artificial bee colony (ABC) algorithm is proposed and then the Heuristic search based on this method is used to formulate the day-ahead plans of OLTC and CBs. Finally, the dispatch plans of OLTC and CBs are applied to recalibrate the day-ahead dispatch plans of DGs. Comparing with existing schemes, strategies and optimization approaches based on diverse evaluation indicators, optimization results on IEEE 33-bus, IEEE 14-bus, and PG&E 69-bus test systems verify the practicality and efficiency of the proposed method. In addition, the effects on the optimization results with different adjustment step and action time of the discrete adjust devices are discussed by the IEEE 33-bus test system.
机译：为解决分布式发电（DG）配电网中的协调调度和时空耦合问题，提出了一种新颖的两阶段（启发式搜索和变量校正）动态无功功率分配策略。同时，通过对高斯型和Z型隶属函数的分析，提出了一种新的目标函数，以实现电网损耗和电压偏差之间的平衡。首先，在Niche遗传算法中进行预优化，以协调有载分接开关（OLTC），电容器组（CB）和DG。其次，提出了基于人工蜂群（ABC）算法的顺序模糊c均值（SFCM）算法，然后基于此方法进行启发式搜索，制定了OLTC和CB的提前计划。最后，将OLTC和CB的调度计划应用于重新校准DG的日前调度计划。与基于各种评估指标的现有方案，策略和优化方法相比，IEEE 33总线，IEEE 14总线和PG＆E 69总线测试系统的优化结果证明了该方法的实用性和有效性。此外，IEEE 33总线测试系统讨论了不同调整步骤和离散调整设备的动作时间对优化结果的影响。

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