期刊名称：Bulletin of the Institute of Heat Engineering
印刷版ISSN：2083-4187
出版年度：2018
卷号：98
期号：1
页码：127-138
语种：English
出版社：Warsaw University of Technology
摘要：Under Frequency Load Shedding (UFLS) is an important protection scheme to maintain the frequency of a Distribution Network(DN) consisting of Distributed Generations (DGs) exposed to power deficit. The different location and amount of loadcurtailments based on different parameters are acquired from the available literature. In this paper, an optimal adaptive UFLSmethod with the advent of two main modules has been proposed. The proposed method provides a revised Rate of Changeof Load (ROCOFL) index related to bus voltage and load power consumption (ROCOFLpv). Using a wide area measurementsystem, Demand Response (DR) technology aimed at shedding fewer loads is emerging against a background of the smartgrid. In addition, smart appliances can provide a real-time data packet in which frequency, the rate of change of frequency,voltage magnitude and breaker status are measured. The proposed method is implemented in five different load schemesconsidering DR programs. Comparative analyses are illustrated in this paper to assert the efficiency of implementing DRprograms in which cost function and amounts of shedding loads are decreased. The results demonstrate that DR programscannot be used for a big power unbalance in an islanded micro grid. The unintentional delay time imposed by DR and thesmall inertia existing in an islanded distribution network restrict the use of DR programs.
关键词：Under Frequency Load shedding; Rate of Change of Frequency of Load; Distributed Network Operator; Smart-Grid; Distribution Management System; Demand Response.
