Optimal placement of dispatchable and nondispatchable renewable DG units in distribution networks for minimizing energy loss

被引:144
|
作者
Duong Quoc Hung [1 ]
Mithulananthan, N. [1 ]
Lee, Kwang Y. [2 ]
机构
[1] Univ Queensland, Sch Informat Technol & Elect Engn, Brisbane, Qld 4072, Australia
[2] Baylor Univ, Dept Elect & Comp Engn, Waco, TX 76798 USA
关键词
Distributed generation; Dispatchable DG; Energy loss; Nondispatchable DG; Optimal power factor operation; Renewable energy; DISTRIBUTION-SYSTEMS; OPTIMAL ALLOCATION; GENERATION SOURCES; RECONFIGURATION; OPTIMIZATION;
D O I
10.1016/j.ijepes.2013.09.007
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
This paper presents a methodology for the integration of dispatchable and nondispatchable renewable distributed generation (DG) units for minimizing annual energy losses. In this methodology, analytical expressions are first proposed to identify the optimal size and power factor of DG unit simultaneously for each location for minimizing power losses. These expressions are then adapted to place renewable DG units for minimizing annual energy losses while considering the time-varying characteristics of demand and generation. A combination of dispatchable and nondispatchable DG units is also proposed in this paper. The proposed methodology has been applied to a 69-bus test distribution system with different scenarios. The results demonstrate that dispatchable DG units or a combination of dispatchable and nondispatchable DG units can lead to a substantial reduction in annual energy losses when compared to nondispatchable DG units. The results also show that a maximum annual energy loss reduction is achieved for all scenarios proposed with DG operation at optimal power factor. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码:179 / 186
页数:8
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