| 引用本文: | 袁晓冬,杨晓梅,禹永洲,陆文涛,葛乐.计及调压辅助服务收益的光储系统优化运行策略[J].电力自动化设备,2019,39(4): |
| YUAN Xiaodong,YANG Xiaomei,YU Yongzhou,LU Wentao,GE Le.Optimal operation strategy of PV-energy storage system considering revenue of voltage regulation ancillary service[J].Electric Power Automation Equipment,2019,39(4): |
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| 摘要: |
| 含高渗透率清洁能源配电网的电压越限问题日益严重。光储系统因具备PQ四象限调节能力，具有向电网提供电压调节辅助服务的功能。提出了一种计及调压辅助服务收益的光储系统优化运行策略。给出了光储系统的拓扑结构和柔性并网运行方式；考虑上网电量收益、辅助服务收益、购电费用、损耗费用以及运行约束条件，构建了以光储系统经济收益最大为目标的最优运行模型。针对系统存在的连续多阶段全局有功/无功双决策问题，采用多维动态规划算法进行求解。算例结果表明，光储系统能主动响应调压辅助服务价格激励，获得更高的经济收益，同时有效地解决了配电网的电压越限问题。 |
| 关键词: 光储系统 柔性并网 调压辅助服务 多维动态规划 |
| DOI：10.16081/j.issn.1006-6047.2019.04.026 |
| 分类号:TM615;TM732 |
| 基金项目:国家自然科学基金资助项目(51707089)；国家重点研发计划“智能电网技术与装备”重点专项(2017YFB-0903300)；国家电网公司总部科技项目(5210EF17001C)；国网江苏省电力有限公司科技项目 |
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| Optimal operation strategy of PV-energy storage system considering revenue of voltage regulation ancillary service |
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YUAN Xiaodong1, YANG Xiaomei2, YU Yongzhou3, LU Wentao3, GE Le3
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1.Research Institute of State Grid Jiangsu Electric Power Co.,Ltd.,Nanjing 211103, China;2.State Grid Jiangsu Electric Power Co.,Ltd.,Nanjing 210024, China;3.School of Electrical Engineering, Nanjing Institute of Technology, Nanjing 211167, China
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| Abstract: |
| The voltage over-limit problem of distribution network with high penetration rate of renewable energy is increasingly serious. PESS(Photovoltaic-Energy Storage System) can provide voltage regulation ancillary service for the power grid due to its four-quadrant PQ adjustment capability. An optimal operation strategy is proposed for PESS considering the revenue of voltage regulation ancillary service. The topology structure and flexible grid-connected operation modes of PESS are given. Considering the on-grid energy income, the ancillary service revenue, the electricity purchasing cost, the loss cost and the operating constraints, the optimal operation model with the maximum economic benefit of PESS as its objective is established. Aiming at the global continuous multi-stage active/reactive power dual decision-making problem, the multi-dimensional dynamic programming algorithm is adopted to solve the problem. The results of case study show that PESS can respond to the price incentive of voltage regulation ancillary service to obtain higher revenue, and solve the voltage over-limit problem of distribution network effectively. |
| Key words: photovoltaic-energy storage system flexible grid-connection voltage regulation ancillary service multi-dimensional dynamic programming |
