| 引用本文: | 孟晓芳,王俊,王英男,等.计及分布式电源局部调压能力的10 kV配电网低电压治理方法[J].电力系统保护与控制,2019,47(10):65-72.[点击复制] |
| MENG Xiaofang, WANG Jun, WANG Yingnan, LIU Ran, WANG Hui and ZHANG Han.Low-voltage control method for 10 kV distribution network considering distributed generation capability of local voltage regulation[J].Power System Protection and Control,2019,47(10):65-72[点击复制] |
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| 摘要: |
| 为了充分利用分布式电源局部调压能力治理10 kV配电网的低电压问题，提出了一种利用分布式电源改善电压的方法。根据配电网5种典型运行案例的节点电压，利用模糊聚类分析对配电网中节点进行二次分区，并利用改进的粒子群算法在分区内优化配置分布式电源和无功补偿设备。计及分布式电源和无功补偿设备的输出电流以及有载调压变压器变比的影响，推导出了计算节点电压变化量的公式以及基于电流的电压灵敏度分析矩阵，并提出了基于灵敏度分析矩阵的电压控制策略。以存在“低电压”问题10 kV配电网为例，对所提出的方法进行了分析和验证，结果表明了所提方法的可行性和有效性。 |
| 关键词: 配电网 分布式电源 模糊聚类分析 电压控制策略 灵敏度分析 粒子群算法 无功补偿设备 |
| DOI：10.7667/PSPC20191009 |
| 投稿时间：2018-05-31修订日期：2018-07-28 |
| 基金项目:国家科技支撑计划课题(2012BAJ26B00);辽宁省自然科学基金项目资助(20170540810) |
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| Low-voltage control method for 10 kV distribution network considering distributed generation capability of local voltage regulation |
| MENG Xiaofang,WANG Jun,WANG Yingnan,LIU Ran,WANG Hui,ZHANG Han |
| (College of Information and Electric Engineering, Shenyang Agricultural University, Shenyang 110866, China;Electric Power Construction Shenyang New Energy Development Co., Ltd., Shenyang 110180, China;State Grid Liaoning Electric Power Company Limited Economic Research Institute, Shenyang 110015, China) |
| Abstract: |
| In order to make full use of local voltage regulation capability of the Distributed Generation (DG) to solve the low-voltage problem in 10 kV distribution network, this paper introduces a method to improve voltage with DG. According to the node voltage of five typical operation cases, second division of network nodes is implemented using fuzzy cluster analysis. And the improved Particle Swarm Algorithm (PSO) is used for the optimal configuration of DG and Reactive Power Compensation Equipment (RPCE) in the node division areas. Considering the output current of DG and RPCE, and the ratio of the On-Load Tap Changer (OLTC), this paper deduces the formula for calculating the node voltage variation and voltage sensitivity analysis matrix based on current. Voltage control strategy is proposed on the sensitivity analysis matrix. The method proposed is tested on the actual 10 kV grid example with low-voltage problem. The results show the feasibility and effectiveness of the approach proposed to solve the low-voltage problem. This work is supported by National Science and Technology Support Program of China (No. 2012BAJ26B00) and Natural Science Foundation of Liaoning Province (No. 20170540810). |
| Key words: distribution network distributed generation (DG) fuzzy cluster analysis voltage control strategy sensitivity analysis particle swarm optimization (PSO) reactive power compensation equipment (RPCE) |
