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1. 山东科技大学电气与自动化工程学院,山东省 青岛市 266590
2. 山东科技大学储能技术学院,山东省 青岛市 266590
3. 电网智能化调度与控制教育部重点实验室(山东大学),山东省 济南市 250061
Received:15 May 2022,
Revised:2022-11-06,
Published Online:16 January 2023,
Published:25 April 2023
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吉兴全,刘健,叶平峰等.计及灵活性与可靠性的综合能源系统优化调度[J].电力系统自动化,2023,47(8):132-144.
JI Xingquan,LIU Jian,YE Pingfeng,et al.Optimal Scheduling of Integrated Energy System Considering Flexibility and Reliability[J].Automation of Electric Power Systems,2023,47(8):132-144.
吉兴全,刘健,叶平峰等.计及灵活性与可靠性的综合能源系统优化调度[J].电力系统自动化,2023,47(8):132-144. DOI: 10.7500/AEPS20220515006.
JI Xingquan,LIU Jian,YE Pingfeng,et al.Optimal Scheduling of Integrated Energy System Considering Flexibility and Reliability[J].Automation of Electric Power Systems,2023,47(8):132-144. DOI: 10.7500/AEPS20220515006.
高比例可再生能源不断并网使得系统的不确定性问题日益突出,对系统的供能能力和响应能力均提出了更高的要求。为满足系统高灵活性与高可靠性的需求,充分挖掘电-气-热多种能源间的耦合和互补协调的能力,提出了一种考虑运行灵活性与供能可靠性约束的综合能源系统优化调度模型,在明晰灵活性和可靠性两者概念内涵的基础上,提出了提升灵活性与可靠性的相互影响机理。据此,文中分别推导了运行灵活性与可靠性的评价指标,并定义了表征二者相互影响关系的协调指标。在此基础上,采用成本效益分析法和等响应风险方法构建了计及运行灵活性与供能可靠性协调效应的综合能源系统优化调度模型,并采用增量线性化方法对模型中的非线性项进行了处理,进而通过混合整数线性规划法直接求解。最后,以改进的电-气-热IES 24-20-16系统和电-气-热IES 118-20-16系统为例,验证了所提模型和方法的可行性。
The high proportion of renewable energy connected to the power grid makes the uncertainty of the system increasingly prominent
which puts forward higher requirements for the energy supply capacity and response capacity of the system. In order to meet the requirements for high flexibility and high reliability of the system
and fully tap the ability of coupling and complementary coordination among electricity-gas-heat energy sources
an optimal scheduling model of the integrated energy system (IES) considering operation flexibility and energy supply reliability constraints is presented. On the basis of clarifying the concept of flexibility and reliability
the interaction mechanism of improving flexibility and reliability is analyzed. Accordingly
the evaluation indexes of operation flexibility and reliability are deduced
respectively
and the coordination index to demonstrate the interaction influence between them is defined. Based on this
an optimal scheduling model of the IES considering the coordination effect of operation flexibility and energy supply reliability is established by using cost-benefit analysis method and equal response risk method. The nonlinear terms in the model are linearized by incremental linearization
and then directly solved by the mixed-integer linear programming method. Finally
the improved electricity-gas-heat IES 24-20-16 system and electricity-gas-heat IES 118-20-16 system are taken as cases to verify the feasibility of the model and method proposed in this paper.
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