This paper presents a multi-source coordinated model considering the dispatchability of nuclear power plants. Based on the actual operation experience and a large number of existing nuclear power simulation research results, the dispatchability of nuclear power, namely its peak-shaving feasibility, is analyzed. Then, the security adjustable region of nuclear power plants and operational constraints are proposed, the peak-shaving operation model is constructed as well. Based on the operational characteristics of nuclear power, two-stage dispatching method is adopted. Low power operation time of nuclear power is determined at pre-scheduling stage, and then the depth of peak shaving is optimized at re-scheduling stage. Finally, the optimal peak-shaving operation mode of the nuclear power is obtained. As for the uncertainties of wind power and solar power, the robust optimization method is employed to ensure the feasibility of scheduling decision. Through two typical cases of wet season and dry season, the results indicate that the proposed model can not only guarantee the safe operation of the nuclear power plants but also the economy, realizing the full consumption of specified amount of renewable energy. Besides, it effectively coordinates the power generation space of various power sources and balance the interests of all parties.%提出一种考虑核电机组可调度性的多源协调短期优化调度模型.在已有的核电实际运行经验和大量仿真研究结果的基础上,分析核电的可调度性,即核电参与调峰的可行性,提出了核电的安全可调节域和运行约束,建立了核电调峰运行模型.基于核电运行特点,采用两阶段调度方法,预调度阶段确定核电机组的低功率运行时间,再调度阶段优化核电的调峰深度,最终得到核电参与调峰的最优运行方式.针对风电、光电出力的不确定性,采用鲁棒优化的方法始终保证调度决策的可行性.对丰水期和枯水期两种典型情况进行算例分析,结果表明所提模型在保证核电机组安全运行的同时兼顾了经济性,实现了对可再生能源的足额消纳,并有效协调了各类电源的发电空间,均衡了各方利益.
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