摘要
传统的电力系统调频通过控制发电机的功率输出来跟踪变化的负荷。近年来,许多研究表明利用需求响应能够更好地控制辅助系统调频。然而需求响应控制过程中存在的响应延时和通信延时会对控制结果产生不良影响。本文分别对需求响应参与调频控制过程中的响应延时和通信延时进行建模,并研究其对控制结果的影响,及两种延时在最优控制问题中对最优控制参数的影响。仿真结果表明,正确地对需求响应参与调频过程中的延时进行建模,并设计最优控制策略,能够显著地改善控制效果。
Conventional frequency control of the power system is realized by tracking varying loads through controlling the power output of generators.In recent years,many studies have shown that the demand response can better support the frequency control of power systems.However,the response delay and communication delay in the process of demand response can adversely affect the control results.This paper models the response delay and communication delay in the controlling process respectively,analyzes its influence on control results,and studies the influence of two kinds of delay on optimal control parameters in optimal control problem.The simulation analysis shows that the optimal control strategy can improve the control effect significantly.
作者
叶子健
陈培培
包宇庆
YE Zijian;CHEN Peipei;BAO Yuqing(Nari School of Electrical Engineering and Automation,Nanjing Normal University,Nanjing 210023,China)
出处
《电力工程技术》
2018年第2期8-12,共5页
Electric Power Engineering Technology
基金
国家自然科学基金资助项目(51707099)
中国博士后科学基金(2017M611859)
关键词
需求响应
频率控制
响应延时
通信延时
demand response
frequency control
response delay
communication delay
