计及运行广义短路比的多时间尺度新能源并网调度计划模型
摘要：为了保障大规模新能源并网时电网系统的稳定运行，减少弃风、弃光，首先分析了平抑新能源并网功率波动的手段，引入了新能源以任意功率并网后能够评估交流系统电网强度的运行广义短路比。其次，给出了基于日前、日内、实时3个时间尺度新能源并网调度计划策略，建立了以运行调度成本最小、运行广义短路比最大、联合输出功率波动最低为目标函数的多时间尺度新能源并网调度计划模型。最后，以火电机组、新能源场站、储能电站和高载能负荷等所构成系统为例，仿真验证了所给策略和模型的有效性。
Abstract:To ensure the stable operation of power system during large-scale new energy grid connection and reduce the instances of wind or solar energy curtailment, firstly, an analysis was made on methods for power fluctuation suppression in the new energy grid. Additionally, the generalized short circuit ratio of operation, a parameter for AC power grid strength evaluation after new energy being connected to the grid with arbitrary power, was introduced. Secondly, a dispatch model for new energy grid connection considering three time scales: day-ahead, intra-day and real-time, was presented. Furthermore, a multi-time scale new energy grid connection capacity optimization models was established with the objective functions of minimum operation dispatch cost, maximum operation generalized short circuit ratio, and the minimum fluctuation of joint output power. Finally, taking the system consisting of thermal power units, new energy stations, energy storage power stations and high energy loads as an instance, the effectiveness of proposed strategy and model was verified through simulation.
标题：计及运行广义短路比的多时间尺度新能源并网调度计划模型
英文标题：A Multi-time Scale Dispatch Model for New Energy Grid Connection Considering Generalized Short Circuit Ratio of Operation
作者：李晓辉, 董燕飞, 刘豪, 姚振明,
关键词：新能源, 多时间尺度, 柔性负荷, 运行广义短路比, 并网调度计划模型,
发表日期：2024-04-10
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