统一电能交易市场下的虚拟电厂优化调度模型

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摘要针对虚拟电厂调度模型中仅涉及日前市场的电能交易,建立了日前市场和实时市场统一协调的电能交易模型,突破日前市场必须按预测负荷采购和售卖这一限制,优化日前交易量,实现总体购买费用最低和售出收益最高。结合统一市场的电能交易模型和分布式电源、储能系统以及可控负荷的运行模型和约束条件,建立基于统一电力市场下的虚拟电厂优化调度模型,通过合理调配虚拟电厂内部分布式电源,可控负荷和储能间的能量流动以及优化虚拟电厂整体与电力市场的电能交易,实现最大经济收益。算例分析结果表明了该模型对虚拟电厂优化调度的合理性和有效性。

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	郭红霞
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	王昱力

关键词 ：虚拟电厂, 统一电力市场, 分布式电源, 可中断负荷, 储能系统

Abstract：The conventional scheduling models of the virtual power plant (VPP) only consider the electricity trading in the day-ahead market.In this paper,a unified electricity trading model covering the day-ahead market and the real time market is proposed.In thismodel,the limit,that the day-ahead market should purchase and sell electricity according to the forecasting load,is broken,and the electricity traded in day-ahead market is optimized to minimize the overall costs and maximize overall profits.Based on the electricity trading model in the unified market and the operating models and constraints of the elements,i.e.distributed sources,energy storage systems,and interruptible loads,in VPP,the optimal scheduling VPP model in the unified market is developed,which can reasonably allocate electricity among internal distributed generations,interruptible loads,and energy storage systems in VPP and optimize the electricity transaction between the VPP and the unified market to achieve maximum economic benefits.The consequence of the example analyses proves the correctness and the usefulness of the optimal scheduling model given by this paper.

Key words： Virtual power plant unification electricity market distributed generation interruptible load energy storage system

收稿日期: 2015-06-15 出版日期: 2015-12-18

PACS:

TM315

基金资助:国家自然科学基金重点项目(51377068)、榆林学院课程建设项目(ZD1407)和榆林市科技局项目(2015CXY-22)资助。

通讯作者: 白浩男,1987年生,博士研究生,研究方向为电力系统运行、分析与控制。

作者简介: 郭红霞女,1983年生,硕士,讲师,研究方向为配电网规划、运行和微电网经济运行。

引用本文:

郭红霞, 白浩, 刘磊, 王昱力. 统一电能交易市场下的虚拟电厂优化调度模型[J]. 电工技术学报, 2015, 30(23): 136-145. Guo Hongxia, Bai Hao, Liu Lei, Wang Yuli,. Optimal Scheduling Model of Virtual Power Plant in a Unified Electricity Trading Market. Transactions of China Electrotechnical Society, 2015, 30(23): 136-145.

链接本文:

https://dgjsxb.ces-transaction.com/CN/Y2015/V30/I23/136

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