时滞环境下基于电动汽车与电热泵的协调频率控制  

Coordinated frequency control based on electric vehicles and heat pumps considering time-delay

作　　者：李晓萌[1] 贾宏杰[1] 穆云飞[1] 王明深 董朝宇 余晓丹[1] 王蕾[1] LI Xiaomeng;JIA Hongjie;MU Yunfei;WANG Mingshen;DONG Chaoyu;YU Xiaodan;WANG Lei(Key Laboratory of Smart Grid of Ministry of Education,Tianjin University,Tianjin 300072,China)

机构地区：[1]天津大学智能电网教育部重点实验室,天津300072

出　　处：《电力自动化设备》2020年第4期88-95,110,共9页Electric Power Automation Equipment

基　　金：国家自然科学基金资助项目(51625702);国家自然科学基金-国家电网公司联合基金资助项目(U1766210);天津市高层次创新团队和天津市重点领域创新团队资助项目。

摘　　要：提出一种时滞环境下应用电动汽车和电热泵协同参与系统负荷频率控制的调控策略。在考虑电动汽车和电热泵单体运行特性的基础上,分别构建电动汽车与电热泵集群的调频控制模型;充分考虑负荷频率控制中通信延时的影响,建立包含时滞环节的调频系统动态模型;进一步地,利用该模型对不同类型可控负荷集群对应的时滞稳定裕度进行分析,并根据最大化系统稳定裕度的原则优先采用稳定裕度较大的可控负荷进行调频,从而对电动汽车与电热泵在参与频率调节过程中进行协调控制。A coordinated frequency control strategy under time-delay circumstance is presented,in which EVs(Electric Vehicles)and HPs(Heat Pumps)are coordinated as two types of demand response resources.The individual and aggregative models of EV and HP are established,and their operational characteristics are considered.Then,a dynamic frequency regulation model including time-delay loops is built.Further more,this model is utilized to analyze the time-delay stability margin of controllable aggregated demands,and the control priority of EVs and HPs that participate in the frequency control is determined by their time-delay stability margins based on the stability margin-maximum criterion.

关 键 词：可再生能源 电动汽车 电热泵 频率控制 时滞 

分 类 号：TM761[电气工程—电力系统及自动化] U469.72[机械工程—车辆工程]