Evaluation Index of Equipment Utilization Efficiency in Substation Considering Distributed Generation
1 China Southern Power Grid Co.Ltd, Shaoguan Power Supply Bureau, No. 66, Gongyexi Road, Shaoguan, China
2 Guangzhou Power Electrical Technology Co. Ltd, System Research Division, Room 440, Building C, Wushan Technology Square, Wushan Road Tianhe, Guangzhou, China
3 South China University of Technology, School of Electric Power, No. 381, Wushan Road Tianhe, Guangzhou, China
With the development of Distributed Generation (DG), traditional evaluation index of equipment utilization efficiency is not objective in some situations. To solve this problem, a comprehensive evaluation method of equipment utilization efficiency in substation is proposed in this paper. Based on the characteristics of distribution network including DG, two indexes, the burden rate and the load rate, are considered. Then, the indexes are further analyzed that they are specified into the injected indexes and the bidirectional indexes. From the operation data of transformers, the specified indexes are calculated representatively and it is indicated that bidirectional indexes could reflect the equipment utilization efficiency in substation more objectively. The presented method provides a new perspective of evaluating the equipment utilization efficiency in substation considering DG.
© The Authors, published by EDP Sciences, 2016
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