考虑分布式电源集群无功调节能力的配电网无功优化
摘要：近年来，光伏、风电等分布式电源大规模集群并网，增加了无功优化的难度。而现有研究并未考虑分布式电源集群(distributed generation cluster，DGC)并网后出现较大无功缺额时的电压越限问题。因此，研究了DGC容量特性曲线，当系统出现无功不足时，通过减载集群有功出力，提高集群无功出力范围，以满足系统无功需求。建立了含DGC的配电网无功优化模型，从配电网安全运行方面考虑，将电压偏差、网络损耗以及购电费用作为优化目标，通过ε约束法刻画多目标问题，并调用算法包进行求解。最后在IEEE33节点算例上验证了模型的有效性。
Abstract:In recent years, due to large-scale grid-connection of such distributed generation as wind power and photovoltaic (abbr. PV) power the difficulty of reactive power optimization is increased, however, in existing researches the voltage out-of-limit caused by higher reactive power vacancy appeared after the grid-connection of distributed generation cluster (abbr. DGC) is seldom considered. For this reason, the capacity characteristic curve of DGC was researched, when reactive power deficiency appeared in power grid, by means of decreasing active output of DGC and increasing reactive output range of DGC the reactive power demand of power grid could be satisfied. A reactive power optimization model of distribution network containing DGC was established, and considering the secure operation of distribution network, the voltage deviation, network loss and the power purchase cost were taken as optimization objectives, the multi-objective problem was characterized by ε constraint method and solved by using algorithm package. Finally, through IEEE 39-bus system the effectiveness of the established model was verified.
标题：考虑分布式电源集群无功调节能力的配电网无功优化
英文标题：Reactive Power Optimization of Distribution Network Considering the Reactive Power Regulation Ability of Distributed Power Generation Cluster
作者：赵晶晶, 许宏源, 李梓博, 朱炯达, 张宇,
关键词：分布式电源集群, 容量曲线, 无功调节能力, 多目标问题, 无功优化,
发表日期：2023-06-10
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