| 引用本文: | 肖峻,潘安鹏,贺国伟,梁海深,王康丽.配电网DG消纳与源荷匹配的定量分析[J].电力自动化设备,2025,45(9):54-61. |
| XIAO Jun,PAN Anpeng,HE Guowei,LIANG Haishen,WANG Kangli.Quantitative analysis of DG accommodation and source-load matching in distribution network[J].Electric Power Automation Equipment,2025,45(9):54-61. |
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| 摘要: |
| 源荷匹配是配电网分布式电源(DG)消纳的关键因素，为此基于数学推导揭示了DG消纳与源荷匹配的定量关系。根据开环运行特点定义了配电网的整体与局部关系，前者指整个配电网，后者指变电站低压母线与联络开关间的供电区域。从数学上推导了源荷匹配度整体与局部间的定量关系、消纳率整体与局部间的定量关系以及源荷匹配度与消纳率间的定量关系；并得到考虑网络约束后，馈线反向潮流不过载是源荷匹配度与消纳率间的定量关系成立的前提条件。为将上述理论研究结果应用于实际，从规划方面提出了对电网公司的建议措施。通过算例验证了定量关系的准确性以及所提规划措施的有效性。 |
| 关键词: 配电网 源荷匹配 DG消纳 整体与局部 定量关系 |
| DOI：10.16081/j.epae.202506020 |
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| 基金项目:国家自然科学基金资助项目(52177105)；国网天津市电力公司科技项目(宝坻-研发2023-01) |
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| Quantitative analysis of DG accommodation and source-load matching in distribution network |
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XIAO Jun1, PAN Anpeng1, HE Guowei1, LIANG Haishen2, WANG Kangli2
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1.State Key Laboratory of Intelligent Power Distribution Equipment and System, Tianjin University, Tianjin 300072, China;2.State Grid Tianjin Baodi Power Supply Co.,Ltd.,Tianjin 301800, China
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| Abstract: |
| The source-load matching is a critical factor for distributed generator(DG) accommodation in distribution network. Based on the mathematical derivation, the quantitative relationship between DG accommodation and source-load matching is revealed. According to the characteristics of open-loop operation, the relationship between global and local distribution network is defined, where the global distribution network refers to the whole distribution network and the local distribution network refers to the supply area from the substation’s low-voltage bus to the tie switch. The mathematical derivation is presented to establish the quantitative relationships between the global and local source-load matching degrees, the global and local accommodation rates and the accommodation rate and source-load matching degree. When the network constraints are considered, it is a prerequisite for the quantitative relationship between source-load matching degree and accommodation rate to be established that the feeder reverse power flow remains within overload limitation. To apply the theoretical research results to practical scenarios, the suggested measurements are proposed for grid companies from the planning-oriented perspective. Case studies verify both the accuracy of the quantitative relationship between matching degree and accommodation rate, and the effectiveness of the proposed planning measurements. |
| Key words: distribution network source-load matching DG accommodation global and local segmentation quantitative relationship |
