
科学技术与工程

中国技术经济学会
考虑变负荷速率影响的储能辅助火电AGC变负荷容量优化配置
李展 , 刘磊 , 康静秋 , 杨振勇 , 高明帅 , 吕游
科学技术与工程 ›› 2026, Vol. 26 ›› Issue (26) :11339-11347
考虑变负荷速率影响的储能辅助火电AGC变负荷容量优化配置
Optimal Allocation of AGC Load Regulation Capacity of Thermal Power Units Assisted by Energy Storage Considering the Influence of Load Ramp Rate
为解决储能辅助火电机组AGC(automatic generation control)变负荷容量配置问题。通过对额定功率为660 MW火电机组在春、夏、秋、冬季节中各一周的AGC变负荷数据进行分析,研究机组AGC变负荷指令大小、方向及间隔时间特征。提出考虑AGC变负荷指令单独或短间隔连续阶跃变化下及储能荷电状态(state of charge,SOC)自恢复特性的容量配置计算方法及辅助变负荷控制策略。最后,选择某一典型日机组实际变负荷数据,使用粒子群优化算法(particle swarm optimization,PSO)得出机组在2.45%Pe(Pe为额定负荷)变速率下,配置功率为20.082 MW、容量为2.75 MW·h的功率型飞轮储能,可实现收益率最大为0.92。随着调频单价及调频里程的增加,机组的收益率会不断增加,当调频单价为11元/MW时或调频里程达到 2 800 MW 时机组收益率超过1。所提出的容量核算方法,为其他类型机组的容量配置提供了有益参考。
To address the capacity configuration issue of energy storage assisting thermal power units in AGC load variation, an analysis was first conducted on the AGC load variation data of a 660 MW-rated thermal power unit over one-week periods in spring, summer, autumn, and winter, examining the characteristics of the magnitude, direction, and interval time of AGC load variation commands; a capacity configuration calculation method and an auxiliary load variation control strategy were proposed, considering both independent or short-interval continuous step changes of AGC load variation commands and the self-recovery characteristics of the energy storage system’s SOC (state of charge). Finally, using actual load variation data from a typical day, PSO (particle swarm optimization) algorithm was applied, revealing that with a variation rate of 2.45%Pe (rated power), configuring a power-type flywheel energy storage system with a power of 20.082 MW and a capacity of 2.75 MW·h could achieve a maximum return rate of 0.92. As the frequency regulation price and frequency regulation mileage increase, the unit’s return rate continues to rise, exceeding 1 when the frequency regulation price reaches 11 CNY/MW or the frequency regulation mileage reaches 2 800 MW. The capacity accounting method proposed in this paper provides a useful reference for capacity configuration of other types of units.
变负荷 / 容量配置 / 季节 / 控制策略 / 粒子群算法 / 收益率
load regulation / capacity allocation / season / control strategy / particle swarm optimization / rate of return
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国家自然科学基金(52476009)
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