| 引用本文: | 钟 浩,舒 栋,张 磊,等.考虑电能质量的配电网增值服务双层优化模型[J].电力系统保护与控制,2023,51(23):16-25.[点击复制] |
| ZHONG Hao,SHU Dong,ZHANG Lei,et al.A two-layer optimization model of value-added service in a distribution network considering power quality[J].Power System Protection and Control,2023,51(23):16-25[点击复制] |
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| 考虑电能质量的配电网增值服务双层优化模型 |
| 钟浩1,2,舒栋1,2,张磊1,2,夏鑫1,2,董雪薇1,2,吴凡1,2 |
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| (1.三峡大学梯级水电站运行与控制湖北省重点实验室，湖北 宜昌 443002;
2.三峡大学电气与新能源学院，湖北 宜昌 443002) |
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| 摘要: |
| 大规模分布式光伏接入使得配电网谐波污染严重，而谐波治理效果与网络拓扑结构相关，存在其他就近节点“搭便车”的现象。为改善用户的用电效率和提升配电网的经济效益，提出一种考虑电能质量的配电网增值服务双层优化模型。首先，采用支持向量机算法预测谐波源不同出力情况下负荷节点的谐波电压畸变率。然后，建立了配电网与需求用户的购售电双层优化模型。上层以配电网运营商作为主体，考虑网络拓扑结构对电能质量治理效果和成本的影响，以配电网运营商收益最大为目标，建立谐波电压治理模型，制定不同电能质量等级的电价。下层以对电能质量有需求用户作为主体，根据不同电能质量等级的电价，用户以运行成本最小为目标，建立电能质量选购策略模型。最后采用IEEE14节点算例进行分析验证，结果表明所提模型能够更有针对性地提升电能质量，提高配电网的经济收益，并为用户的差异化用电提供了解决方案。 |
| 关键词: 电能质量 配电网 增值服务 双层优化 |
| DOI：10.19783/j.cnki.pspc.230284 |
| 投稿时间：2023-03-19修订日期：2023-06-16 |
| 基金项目:国家自然科学基金项目资助(52007103)；湖北省自然科学基金联合基金项目资助(2022CFD167) |
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| A two-layer optimization model of value-added service in a distribution network considering power quality |
| ZHONG Hao1,2,SHU Dong1,2,ZHANG Lei1,2,XIA Xin1,2,DONG Xuewei1,2,WU Fan1,2 |
| (1. Hubei Provincial Key Laboratory for Operation and Control of Cascaded Hydro-power Station, China Three
Gorges University, Yichang 443002, China; 2. College of Electrical Engineering & New Energy,
China Three Gorges University, Yichang 443002, China) |
| Abstract: |
| The access of large-scale distributed photovoltaic energy seriously increases the harmonic pollution of distribution networks. The effect of harmonic control is related to the network topology and other nearby nodes "hitchhike" phenomena exist. To improve the consumption efficiency of users and enhance the economic benefits of the distribution network, a two-layer optimization model of value-added service considering power quality is proposed. First, the support vector machine algorithm is used to predict the harmonic voltage distortion rate of load nodes in different output conditions of harmonic sources. Then, a two-layer optimization model of purchasing and selling electricity between the distribution network and demand users is established. The upper layer, which considers the influence of the network topology structure on the power quality governance effect and cost, takes the maximum of distribution network operator profit as the target. It takes the distribution network operator as the main body, builds the harmonic voltage control model and establishes the electricity price for different power quality levels. The lower layer, which is based on the price of a different power quality, takes the users aim to minimize the operational cost as the target. It takes the users with differentiated power quality requirements as the main body and establishes the power quality purchasing strategy model. Finally, this paper uses the IEEE14-node example analysis for verification, and the results show that the proposed model can improve the power quality and the economic benefits of the distribution network, as well as providing a solution for the differentiated consumption of users. |
| Key words: power quality distribution network value-added service two-layer optimization |
