| 引用本文: | 张政,武新宇,程春田,黄馗,刘欢,吴剑锋.计及弃水电量价值的水火电短期联合调度模型[J].电力自动化设备,2022,42(11): |
| ZHANG Zheng,WU Xinyu,CHENG Chuntian,HUANG Kui,LIU Huan,WU Jianfeng.Short-term combined dispatching model of hydro-thermal power considering abandoned hydropower value[J].Electric Power Automation Equipment,2022,42(11): |
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| 摘要: |
| 针对水电装机容量较高、调节能力较弱的电网汛期水火电发电计划制作困难的问题，充分考虑汛期水电出力受阻、火电多段成本深度调峰及电网备用容量需求，以计及弃水电量价值的汛期水火电总运行成本最小为目标，构建水火电短期联合调度模型。通过耦合弃水电量计算的一体化水火电计划制作方式，简化汛期水火电发电计划制作的过程，提高发电计划的精确性。所建模型通过混合整数线性规划实现，并利用Gurobi求解器对其进行快速求解。广西电网的算例仿真结果表明，所提调峰弃水电量计算方式更为精确，弃水电量价值的引入可协调汛期水火电运行，同时，相较于现行水火电分层调度方式，汛期水火电联合调度方式在保证电网安全运行的前提下，可实现清洁能源高效利用，降低火电运行费用，有利于电网的节能调度。 |
| 关键词: 汛期水火电发电计划 水电出力受阻 弃水电量 火电深度调峰 节能调度 |
| DOI：10.16081/j.epae.202204009 |
| 分类号:TM73 |
| 基金项目:国家自然科学基金资助项目(52179005,91647113) |
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| Short-term combined dispatching model of hydro-thermal power considering abandoned hydropower value |
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ZHANG Zheng1, WU Xinyu1, CHENG Chuntian1, HUANG Kui2, LIU Huan1, WU Jianfeng2
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1.Institute of Hydropower & Hydroinformatics, Dalian University of Technology, Dalian 116024, China;2.Power Dispatching and Control Center of Guangxi Power Grid Co.,Ltd.,Nanning 530023, China
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| Abstract: |
| Aiming at the problem that hydro-thermal power generation plan in flood season is difficult to make in the power grid with high installed capacity of hydropower and weak regulation capacity, a short-term combined dispatching model of hydro-thermal power is built, which fully considers hydropower congestion in flood season, deep peak shaving of multi-stage cost of thermal power and the demand of power grid reserve capacity, and takes the minimum total operation cost of hydro-thermal power in flood season as the objective considering the value of abandoned hydropower. Through the integrated hydro-thermal power generation plan making method coupling with the calculation of abandoned hydropower, the process of hydro-thermal power generation plan in flood season making is simplified, and the accuracy of power generation plan is improved. The built model is realized by mixed-integer linear programming and fast solved by Gurobi solver. The simulative results of an example with Guangxi Power Grid show that the proposed calculation method of abandoned hydropower for peak shaving is more accurate, the introduction of abandoned hydropower value can coordinate the operation of hydro-thermal power in flood season, meanwhile, compared with the current hierarchical dispatching mode of hydro-thermal power, the combined dispatching mode of hydro-thermal power in flood season can realize efficient utilization of clean energy, reduce the operation cost of thermal power, and is conducive to the energy-saving dispatching of power grid on the premise of ensuring the safe operation of power grid. |
| Key words: hydro-thermal power generation plan in flood season hydropower congestion abandoned hydropower deep peak shaving of thermal power energy saving dispatching |
