| 引用本文: | 陆 杨,李华强,刘 洋,等.考虑供能设备故障风险的电-气-热综合能源系统优化运行[J].电力系统保护与控制,2022,50(9):34-44.[点击复制] |
| LU Yang,LI Huaqiang,LIU Yang,et al.Optimal operation of electricity-gas-heat integrated energy system considering therisk of energy supply equipment failure[J].Power System Protection and Control,2022,50(9):34-44[点击复制] |
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| 摘要: |
| 为了应对综合能源系统(Integrated Energy System, IES)中供能设备存在的潜在故障风险，建立了基于运行状态的设备故障概率模型以及基于负载率的设备故障严重度模型，表征设备不同运行状态与系统安全风险关联关系。在此基础上，以运行成本和风险值为优化目标，综合考虑电力、天然气和热力管网以及机组出力等多种约束，建立了IES多目标优化运行模型。运用二阶锥松弛、分段线性化和宽容分层序列法将该模型处理为混合整数二阶锥规划模型，并用宽容度表征系统对风险的接受程度。算例分析结果表明该模型求取的运行策略可以较好地兼顾系统运行安全性与经济性，验证了所提模型和方法的合理性和有效性。 |
| 关键词: 综合能源系统 多能流 设备故障风险 线性化处理 宽容分层序列法 优化运行 |
| DOI：DOI: 10.19783/j.cnki.pspc.210904 |
| 投稿时间：2021-07-15修订日期：2021-12-21 |
| 基金项目:四川省科技计划项目资助(2021YFSY0019) |
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| Optimal operation of electricity-gas-heat integrated energy system considering therisk of energy supply equipment failure |
| LU Yang,LI Huaqiang,LIU Yang,YOU Xiang,CHEN Ying,LIN Zhaohang |
| (1. College of Electrical Engineering, Sichuan University, Chengdu 610065, China;
2. State Grid Sichuan Comprehensive Energy Service Co., Ltd., Chengdu 610021, China) |
| Abstract: |
| In order to cope with the potential failure risk of energy supply equipment in an integrated energy system, an equipment failure probability model based on operating conditions and an equipment failure severity model based on load ratios are established, characterizing the relationship between different operating conditions of equipment and system safety risks. An IES multi-objective optimization operation model is established by taking the operating cost and risk as the optimization objectives, considering comprehensively different constraints of a power network, natural gas pipeline networks, thermal pipeline networks, unit output, etc. Then, the model is processed into a mixed-integer second-order cone programming model using the second-order cone relaxation, piecewise linearization and tolerant hierarchical sequence method, and the tolerance is used to characterize the system's acceptance of risk. The analysis of a calculated example shows that the operating strategy derived from the model can take into account the safety and economy of the system. This verifies the rationality and effectiveness of the model and method.
This work is supported by the Science and Technology Program of Sichuan Province (No. 2021YFSY0019). |
| Key words: integrated energy system multi-energy flow equipment failure risk linearization tolerance lexicographic method optimized operation |
