考虑需求响应不确定性的综合能源系统优化调度研究*

Integrated Energy System Considering Demand Response Uncertainty Research on Optimal Scheduling

  • 摘要: 为了降低需求响应在系统调度时的不确定性,提高系统运行时负荷侧响应的灵活性,建立了考虑需求响应不确定性和负荷预测误差的综合能源系统优化调度模型。在综合能源系统中引入电-气联合需求响应,在保证系统稳定运行前提下,合理安排各时段各机组出力。利用相关机会规划将目标函数转化为不确定环境下事件成立概率最大化的机会函数,通过多目标规划中的优先级算法,将多目标规划转化为单目标规划,运用粒子群优化算法对模型进行求解。通过实际的算例仿真分析,验证了模型的可行性和经济性。

     

    Abstract: In order to reduce the uncertainty of demand side response in system scheduling and improve the flexibility of load side response during the integrated energy system operation, a comprehensive energy system optimal scheduling study considering demand response uncertainty and load forecasting error is established. Through the electrical joint demand response, the output of each unit in each period shall be reasonably arranged on the premise of ensuring the stable operation of the IES system. The objective function is transformed into an opportunity function to maximize the probability of event establishment in an uncertain environment by using relevant opportunity programming, so as to solve the model. Through the priority algorithm in multi-objective programming, the multi-objective programming is transformed into single objective programming, PSO algorithm is used to solve this model. The feasibility and economy of the model are verified by the simulation analysis of a practical example.

     

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