| 引用本文: | 程 超,高厚磊,邹贵彬,王娟娟.提升分布式电源接纳能力的配电网一次设备改造[J].电力自动化设备,2016,36(6): |
| CHENG Chao,GAO Houlei,ZOU Guibin,WANG Juanjuan.Primary equipment retrofitting to enhance DG accommodation capability of distribution network[J].Electric Power Automation Equipment,2016,36(6): |
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| 摘要: |
| 随着分布式发电（DG）的快速发展，如何评估和提升现有配电网对DG的接纳能力是一个亟待解决的问题。从DG接入对配电网一次设备电流耐受能力的影响入手，以短路电流不越限为约束条件，提出计算最大DG准入容量的数学模型。以提升配电网接纳DG能力为目标，提出针对一次设备的短路电流限制措施和改造方法。结合实际配电网结构和参数，计算得出潮流、短路电流以及最大DG准入容量，给出了相应的一次设备改造方案，并对改造方案进行了经济性分析和可行性评价。 |
| 关键词: 配电网 分布式电源 DG接纳能力 一次设备改造 校验 短路电流 |
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| 基金项目:山东省电力公司重点科技项目（SGSDWF00YJJS 1400563） |
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| Primary equipment retrofitting to enhance DG accommodation capability of distribution network |
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CHENG Chao1, GAO Houlei1, ZOU Guibin1, WANG Juanjuan2
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1.Key Laboratory of Power System Intelligent Dispatch and Control of Ministry of Education，Shandong University，Ji’nan 250061，China;2.State Grid Weifang Power Supply Company，Weifang 261014，China
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| Abstract: |
| With the rapid development of DG（Distributed Generation），how to evaluate and enhance the DG accommodation capability of distribution network becomes an urgent topic. A mathematical model is proposed to calculate the maximal allowable DG penetration capability of distribution network，which considers the impact of DG integration on the current tolerance ability of primary equipments and takes the short circuit current limit as the constraint. The measure against the short circuit current limit and the scheme of primary equipment retrofitting are proposed to enhance the DG accommodation capability of distribution network. Based on the structure and parameters of an actual distribution network，its power flow，short circuit current and maximal allowable DG penetration capability are calculated，a corresponding scheme of the primary equipment retrofitting is given，and its economical analysis and feasibility estimation are carried out. |
| Key words: distribution network distributed power generation DG accommodation capability primary equipment retrofitting check short circuit current |
