考虑频率-惯量安全约束的新型电力系统优化调度  

Optimal scheduling of new-type power system considering frequency-inertia security constraints

作　　者：洪晗笑 吴晨曦[1] 倪索引 HONG Hanxiao;WU Chenxi;NI Suoyin(School of Automation,Hangzhou Dianzi University,Hangzhou 310018,China)

机构地区：[1]杭州电子科技大学自动化学院,浙江杭州310018

出　　处：《电力自动化设备》2024年第8期176-184,共9页Electric Power Automation Equipment

基　　金：国家自然科学基金资助项目(U2166211);浙江省科技计划项目(2023C01142)。

摘　　要：大规模清洁能源电力的接入削弱了电力系统在有功扰动下的惯量支撑和频率调节能力,在调度中需考虑系统的频率-惯量约束。构建了考虑频率-惯量安全约束的新型电力系统优化调度模型,引入先进绝热压缩空气储能系统作为储能装置进行风电消纳,以频率变化率和稳态频率偏差约束系统所能承载的风力发电极限,并在经济调度目标中考虑了同步机组运行成本、风电出力惩罚成本、碳排放治理成本。以改进的IEEE 30节点系统为算例进行仿真,结果表明:考虑频率-惯量安全约束能求得系统所能承载的风力发电极限,通过控制相关机组启停来调整风电渗透率,可使系统等效惯量始终高于临界惯量。The integration of large-scale renewable energy weakens the inertia support and frequency regulation ability of power system under active power disturbances,so it is necessary to consider the frequencyinertia constraints in system scheduling.The optimal scheduling model of new-type power system considering frequency-inertia security constraints is established.The advanced adiabatic compressed air energy storage system(AA-CAES)is introduced as an energy storage device for wind power generation consumption.The wind power generation limit that can be tolerated by the system is constrained by the rate of change of frequency and the steady state frequency deviation,and the operating cost of synchronous generators,the penalty cost of wind power and the disposal cost of carbon emission are considered in the economic scheduling objective.The improved IEEE 30-bus system is taken as an example to carry on the simulation.The results indicate that considering frequency-inertia security constraints can obtain the wind power generation limit that can be tolerated by the system,and the equivalent inertia of the system can always be higher than the critical inertia by controlling the start and stop of relevant units to adjust the wind power permeability.

关 键 词：新型电力系统 先进绝热压缩空气储能 频率安全 惯量评估 低碳经济调度 

分 类 号：TM73[电气工程—电力系统及自动化]