发电技术 ›› 2020, Vol. 41 ›› Issue (1): 56-63.DOI: 10.12096/j.2096-4528.pgt.19142

• 泛在电力物联网与综合能源系统关键技术 • 上一篇    下一篇

考虑运行风险的含储能综合能源系统优化调度

施云辉(),郭创新()   

  • 收稿日期:2019-09-21 出版日期:2020-02-29 发布日期:2020-03-03
  • 作者简介:施云辉(1994),男,博士研究生,研究方向为综合能源系统优化运行, 11610016@zju.edu.cn|郭创新(1969),男,博士,教授,博士生导师,主要研究方向为智能调度及风险调度、智能信息处理技术及其在电力系统应用的研究, guochuangxin@zju.edu.cn
  • 基金资助:
    国家自然科学基金项目(51877190)

Optimal Dispatch of Integrated Energy System Considering Operational Risks in the Presence of Energy Storage

Yunhui SHI(),Chuangxin GUO()   

  • Received:2019-09-21 Published:2020-02-29 Online:2020-03-03
  • Supported by:
    National Natural Science Foundation of China(51877190)

摘要:

为解决综合能源系统(integrated energy system,IES)中供需双侧不确定因素对运行调度带来的风险问题,提出了一种考虑运行风险的含储能IES优化调度模型。在目标函数中,用设备调整费用、失负荷惩罚费用和弃风弃光惩罚费用来量化系统运行风险。在约束条件中,区分了电能和热能的时间尺度差异,并计及储能的时间耦合性,建立了储能多时段耦合约束。然后提出了一种基于Benders分解的算法进行求解。最后通过算例分析了置信水平、储能功率及容量对IES运行费用及运行风险的影响。

关键词: 综合能源系统(IES), 储能, 不确定性, 风险成本, 优化调度

Abstract:

In order to solve the risk problem brought by uncertainties of supply and demand in integrated energy system (IES), an optimal dispatch model of IES with energy storage considering operational risk was proposed. In the objective function, the cost of equipment adjustment, penalty for loss of load and penalty for curtailment of wind and solar power was used to quantify the operational risk of the IES. In the constraints, the time-scale differences between electric energy and thermal energy were distinguished, and the multi-period coupling constraints of energy storage were established considering the time coupling of energy storage. Then an algorithm based on Benders decomposition was proposed to solve the problem. Finally, an example was given to analyze the influence of confidence level, energy storage power and capacity on IES operation cost and operational risk.

Key words: integrated energy system (IES), energy storage, uncertainty, risk cost, optimal dispatch

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