偏差电量考核机制下含DG的售电公司多目标优化调度模型

doi:10.19595/j.cnki.1000-6753.tces.L80620

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摘要偏差电量考核机制是影响售电公司收益的关键因素,含分布式电源的售电公司能够通过调用可调度资源来平衡偏差电量,但同时也给电网的稳定运行造成了一定冲击。如何在提高系统运行稳定性的同时,尽可能地减少偏差电量、提高售电公司收益是目前亟待解决的问题。首先以售电公司收益最大化和配电网电压偏差最小化为优化目标,构建了售电公司多目标优化调度模型;然后以总偏差电量最小为收敛判据,使用NSGA-II算法对模型进行迭代求解,以获得更合理的日前购电策略并输出Pareto最优解集;最后,在多种场景下,对改进的IEEE33节点算例进行对比分析。结果表明,通过所提出的优化调度方法,可以有效降低售电公司在偏差电量考核上的支付,并在提高系统运行稳定性的同时,实现售电公司运营收益的最大化。

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关键词 ：偏差电量, 售电公司, 分布式电源, 多目标优化, NSGA-II算法

Abstract：Energy deviation penalty is a key factor that affecting the profit of electricity retailers, electricity retailers with DG can balance the energy deviation by schedulable resources, but this may cause an impact on the stability of the power grid operation. How to reduce the energy deviation as much as possible and increase the profits of the electricity retailers while improving the operation stability of system are demanding prompt solve. Taking the maximum operation profits of electricity retailers and the minimum voltage excursion as optimization objectives, a multi-objective optimization scheduling model for electricity retailers is established. In order to obtain a more reasonable strategy of day-ahead purchase and output pareto optimal solution set, an iterative solution of the model can be achieved by NSGA-II under the convergence criterion of minimum energy deviation. Finally, the simulation test is carried out on the modified IEEE 33-node distribution system under various scenarios. The results shows that the method proposed in this paper can reduce the energy deviation penalty expenditure of electricity retailers effectively, and realize the maximization of operation profits of electricity retailers while improving the operation stability of system.

Key words： Energy deviation electricitly retailers distributed generation multi-objective optimization NSGA-II

收稿日期: 2018-07-05 出版日期: 2019-08-13

PACS:

TM73

基金资助:国家自然科学基金（51407104）和三峡大学学位论文培优基金（2018SSPY075）资助

通讯作者: 张涛,男,1981年生,博士,教授,研究方向为电力系统优化运行、高电压绝缘及测试技术、电力系统过电压与接地技术。E-mail：unifzhang@hotmail.com

作者简介: 王成,男,1991年生,硕士,研究方向为主动配电网优化运行。E-mail：692372918@qq.com

引用本文:

张涛, 王成, 王凌云, 王娅镭, 雷水平. 偏差电量考核机制下含DG的售电公司多目标优化调度模型[J]. 电工技术学报, 2019, 34(15): 3265-3274. Zhang Tao, Wang Cheng, Wang Lingyun, Wang Yalei, Lei Shuiping. Multi-Objective Optimal Dsipatching Model of Electricity Retailers with Distributed Generator under Energy Deviation Penalty. Transactions of China Electrotechnical Society, 2019, 34(15): 3265-3274.

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