摘要
在“双碳”背景下,电力系统逐渐从传统发电向新能源发电转型,给电网的供电稳定性带来了挑战,灵活性机组的重要性逐渐受到重视。同时电力市场改革不断深化,灵活性机组的自盈利发展趋势尚未探明。传统的发展模型一般缺乏准确的电价生成环节,提出了将系统动力学与现货市场出清相结合的双时间尺度动力学模型,以实现在更贴近真实电价的情况下对具有灵活性的燃气机组和储能系统的自盈利增长趋势进行模拟。首先,分析了市场要素之间的量化和反馈关系,建立了系统动力学模型来模拟各类发电机组的投资与发展。其次,建立了基于机组组合优化的现货出清模型,验证了系统运行约束条件,并计算了现货出清结果。通过将现货出清模型整合为系统动力学模型中的一个主体,构建了双时间尺度动力学模型。最后,设计了不同的灵活性机组补贴方案,并依据仿真结果为电力系统规划者和相关政策制定者提供了建议。
In the context of“carbon peaking”and“carbon neutrality,”the generation method for power systems is gradually transitioning from traditional generation to renewable energy source generation,posing challenges to the stability of the power supply in the grid.The significance of flexible generator units has become increasingly evident.Concurrently,ongoing reforms in the electricity market are yet to clearly define the self-profit development trends of flexible units.Traditional development models often lack the accurate elements of the electricity price generation process.This paper proposes a dual-timescale dynamic model that combines system dynamics with spot market clearing to simulate the self-profit growth trends of flexible gas units and energy storage systems under more realistic electricity price scenarios.First,the quantitative and feedback relationships among market elements are analyzed,and a system dynamics model is established to simulate the investment and development of various power generation types.Second,a spot market-clearing model based on unit commitment optimization is presented to validate the system's operational constraints and calculate spot market-clearing results.A dual-timescale dynamic model is introduced that integrates the spot market-clearing model as a core component of the system dynamics model.Finally,different subsidy schemes for flexible units are discussed,and recommendations for power system planners and relevant policymakers are provided based on the simulation results.
作者
李客村
黄振宇
游星星
邱高
刘友波
刘俊勇
LI Kecun;HUANG Zhenyu;YOU Xingxing;QIU Gao;LIU Youbo;LIU Junyong(College of Electrical Engineering,Sichuan University,Chengdu 610065,China)
出处
《电力建设》
北大核心
2025年第2期137-150,共14页
Electric Power Construction
基金
国家自然科学基金项目(U2066209)。
关键词
燃气机组
储能系统
双时间尺度动力学模型
现货出清
自盈利增长
gas generation unit
energy storage system
dual timescale dynamic model
spot clearing
self-profit growth
