中国电机工程学报2018，Vol.38Issue(1)：51-60,后插6,11.DOI:10.13334/j.0258-8013.pcsee.170983
计及需求响应的智能化微网频率紧急控制策略
Intelligent Frequency Emergency Control Strategy Considering Demand Response in the Micro-grid
摘要
Abstract
With the development of distributed energy resources, the future grid will show the coexistence of large-scale grid and micro-grid. The traditional frequency emergency control methods mainly adopt the large-scale grid as the research object. Therefore, this paper proposed a novel intelligent control strategy which can be applied in the micro-grid. In order to avoid the threat of sudden frequency deviation to the micro-grid stability we set the frequency thresholds reasonably. We considered the dynamic estimation of the system power shortage to decide accurately the load control amount. Moreover we investigated the exact calculation for the system equivalent inertia constant, so as to reduce the operational error of the emergency control. We also took the coordinated mechanism of demand response into account to decrease the control cost. Based on the above, the proposed strategy was divided into two main control modules (DR-based module and UFLS-based module), and the detailed flowchart was designed. Meanwhile, the accuracy of the dynamic estimation for power shortage was theoretically proved. Finally, the simulation results in the IEEE 13-bus micro-grid show that, in different scenarios, our method can effectively guarantee the system frequency stability while the control cost can be lowered due to the application of the demand response mechanism.关键词
微网/频率稳定/频率紧急控制/需求响应/低频减载Key words
micro-grid/frequency stability/frequency emergency control (FEC)/demand response (DR)/under frequency load shedding (UFLS)分类
信息技术与安全科学引用本文复制引用
李顺,唐飞,廖清芬,刘涤尘,赵红生,黄涌,蔡昌松..计及需求响应的智能化微网频率紧急控制策略[J].中国电机工程学报,2018,38(1):51-60,后插6,11.基金项目
国家电网公司科技项目"多区域安控系统协调及在线诊断、辅助决策技术研发应用". State Grid Corporation of Science and Technology Projects. （）
