作者：张照彦, 张东月, 刘志恒, 张军伟, 田华

作者单位：河北大学电子信息工程学院，河北 保定 071002

关键词：混合时间尺度;混合分辨率建模;协同优化;运行成本

摘要：

针对综合能源系统多能网络与设备特性差异，该文建立集成热电联产机组、风力发电机组、燃气锅炉以及电转气等设备的综合能源系统运行框架；提出能反映能源站电、气能流耦合特性的系统能量枢纽模型。建立综合能源系统的日前优化模型、日内滚动优化模型、实时计划优化模型。基于三种优化模型，提出日前-滚动-实时的复合协调优化运行策略。根据电、热负荷以及风电出力的日前预测数据制定日前调度方案，为系统全天的运行情况提供初步的参考信息；然后利用短期滚动预测数据进行滚动计划，对日前计划方案进行滚动修正，制定各设备出力的基本运行点；最后利用超短期预测数据进行实时计划，得到与实际电、热负荷与风电出力情况匹配度较高的计划方案。通过算例分析验证，结果表明该文所提综合能源系统复合协调优化运行方法可以有效降低系统的运行成本，可提升可再生能源的消纳能力，并增加可再生能源的利用率。

Research on multi-time-scale compound coordinated optimal operation method of integrated energy system
ZHANG Zhaoyan, ZHANG Dongyue, LIU Zhiheng, ZHANG Junwei, TIAN Hua
College of Electronic Information Engineering, Hebei University, Baoding 071002, China
Abstract: Aiming at the differences in the characteristics of multi-energy networks and equipment of the integrated energy system (IES), an IES operation framework is established, which integrates combined heat and power cogeneration (CHP), wind turbines, gas-fired boilers and power to gas (P2G) equipment. And an IES energy hub model is proposed, which can reflect the coupling characteristics of electricity and gas flow in energy stations. The day-ahead optimization model, intra-day rolling optimization model and real-time planning optimization model of IES system are established. Based on three optimization models, a compound coordinated optimal operation strategy of day-ahead-rolling-realtime is proposed. The optimal scheduling method is based on the differences of transmission characteristics of various heterogeneous energy flows and the operation characteristics of many types of equipment, takes into account the multiple uncertainties on the source load side, determines the optimal scheduling instruction cycle of each subsystem, and realizes the coordinated operation of multi-energy subsystems. Through the analysis and verification of calculation examples, the results show that the compound coordinated optimal operation method of the integrated energy system proposed can effectively reduce the operating cost of the system, improve the absorption capacity of renewable energy, and increase the utilization rate of renewable energy.
Keywords: mixed time scale;mixed resolution modeling;collaborative optimization;operating cost
2023, 49(1):137-144  收稿日期: 2021-07-20;收到修改稿日期: 2021-09-13
基金项目: 中央引导地方科技发展资金项目(216Z2103G)；河北省自然科学基金重点项目(A2020201021)
作者简介: 张照彦(1979-),男,河北邯郸市人,副教授,博士,主要研究领域为新能源发电建模与仿真、综合能源系统建模
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