| 引用本文: | 李振坤,何凯,路群,符杨.售电市场环境下并网型微电网的电源配置及优化运行[J].电力自动化设备,2019,39(11): |
| LI Zhenkun,HE Kai,LU Qun,FU Yang.Power configuration and optimal operation of grid-connected microgrid in electricity selling market[J].Electric Power Automation Equipment,2019,39(11): |
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| 摘要: |
| 随着我国售电市场逐渐放开以及微电网的相关政策更加完善，并网型微电网得到重视与发展。研究了售电市场环境下具备售电资质的微电网内部电源的优化配置问题，优化计算微电网申请的最佳配变容量，建立计及微电网系统投资及运行效益的经济成本模型。鉴于市场环境下微电网的运行更为灵活，通过长时间时序仿真方法对并网型微电网的运行状态进行模拟，仿真过程中考虑输配电价及现货市场中购售电价格的实时变化，并基于微电网内微源出力及负荷的预测结果，采用一种日前和实时两级市场交易的运行策略对并网微电网的运行成本及效益进行有效评估。基于某地的风、光、荷数据，对所提模型及算法进行仿真，求解得到微电网在不同运营策略下各类微源及配变容量的最佳配置结果，并计算评估并网型微电网在不同售电用户数下投资收益率的变化情况。 |
| 关键词: 售电市场 并网型微电网 优化配置 时序仿真 输配电价 |
| DOI：10.16081/j.epae.201909042 |
| 分类号:TM73;F123.9 |
| 基金项目:国家自然科学基金资助项目(51407113)；上海绿色能源并网工程技术研究中心项目(13DZ2251900) |
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| Power configuration and optimal operation of grid-connected microgrid in electricity selling market |
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LI Zhenkun, HE Kai, LU Qun, FU Yang
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School of Electric Power Engineering, Shanghai University of Electric Power, Shanghai 200090, China
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| Abstract: |
| With the gradual opening up of China’s electricity selling market and the improvement of microgrid related policies, the grid-connected microgrid has been paid attention to and developed. The optimal configuration of power supply sources in the microgrid with the qualification of selling electricity in the market environment is studied, the optimal distribution capacity of microgrid application is optimized and calculated, and the economic cost model is established by taking into account the investment and operation benefit of microgrid system. In view of the more flexible operation of microgrid in the market environment, the operation state of grid-connected microgrid is simulated by the time sequence simulation method. In the simulation process, the transmission and distribution price and the real-time changes of electricity purchasing and selling price in the spot market are considered, and based on the predictive results of micro-source output and load in the microgrid, an operation strategy based on day-ahead and real-time two-level market trading is adopted to effectively evaluate the operation cost and benefit of the grid-connected microgrid. Based on the wind, photovoltaic and load data of a certain place, the proposed model and algorithm are simulated. The optimal configuration results of various micro-sources and distribution capacity of microgrid under different operation strategies are obtained, and the change of return on investment of grid-connected microgrid under different number of electricity users is calculated and evaluated. |
| Key words: electricity selling market grid-connected microgrid optimal configuration time sequence simulation transmission and distribution price |
