| 引用本文: | 肖峻,李瑾一,宋晨辉.基于安全域的并网型微电网能量优化新方法[J].电力自动化设备,2023,43(6): |
| XIAO Jun,LI Jinyi,SONG Chenhui.New method of energy optimization for grid-connected microgrid based on security region[J].Electric Power Automation Equipment,2023,43(6): |
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| 摘要: |
| 提出一种基于安全域的并网型微电网能量优化新方法。提出并网型微电网安全域的定义与模型，分别对N-0安全与N-1安全的微电网安全域进行刻画；考虑微电网的安全性与经济性，以微电网经济效益与馈线安全距离为优化目标，建立一种基于安全域的微电网能量优化模型，在规划安全域范围内采用YALMIP工具箱与CPLEX求解器对模型进行求解。算例展示了微电网安全域，验证了能量优化模型的有效性。相较于现有方法，所提方法能够量化系统安全裕度，综合考虑微电网的安全裕度与经济效益。 |
| 关键词: 并网型微电网 安全域 能量优化 经济效益 安全距离 |
| DOI：10.16081/j.epae.202210018 |
| 分类号:TM73 |
| 基金项目:国家自然科学基金资助项目(52177105,52007130) |
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| New method of energy optimization for grid-connected microgrid based on security region |
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XIAO Jun1, LI Jinyi1, SONG Chenhui2
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1.Key Laboratory of Smart Grid of Ministry of Education, Tianjin University, Tianjin 300072, China;2.State Grid Energy Research Institute Co.,Ltd.,Beijing 102209, China
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| Abstract: |
| A new method of energy optimization is proposed for grid-connected microgrid based on security region. The definition and model of grid-connected microgrid security region are proposed, and microgrid security regions of N-0 security and N-1 security are described. Considering the security and economy of microgrid, an energy optimization model of microgrid is established based on security region, which takes the economic benefit and feeder security distance as its optimization objectives, and YALMIP toolbox and CPLEX solver are adopted to solve the model in the planned range of security region. An example is used to show the security region and verify the effectiveness of the energy optimization model. Compared with the existing method, the proposed method can quantify the system security margin, and comprehensively consider the security margin and economic benefit. |
| Key words: grid-connected microgrid security region energy optimization economic efficiency security distance |
