AN ANALYTICAL APPROACH FOR STEP-BY-STEP RESTORATION OF DISTRIBUTION-SYSTEMS FOLLOWING EXTENDED OUTAGES

被引:64
作者
UCAK, C
PAHWA, A
机构
[1] EECE Department, Kansas State University, Manhattan, Kansas
关键词
DISTRIBUTION AUTOMATION; DISTRIBUTION RESTORATION; COLD LOAD PICKUP; STEP-BY-STEP RESTORATION; TRANSFORMER LOADING;
D O I
10.1109/61.311189
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Loss of diversity among loads may cause cold load pickup problems after an extended outage in distribution systems. Thermostatically-controlled devices such as air-conditioners, heaters, heat pumps, water heaters etc. become the largest portion of load during restoration. In this paper, an analytical approach for restoration of distribution systems during cold load pickup is presented. A delayed exponential model is used to represent the load during cold load pickup. A thermodynamic model of transformers is used to determine the loading limits for this type of load. Whenever loading limits are reached, sections are restored step-by-step. In step-by-step restoration, the sequence of sections restored plays an important role in total restoration time. An optimal restoration sequence of different sections of the distribution system is determined for minimum total restoration time as well as minimum customer interruption duration.
引用
收藏
页码:1717 / 1723
页数:7
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