Three-phase DLMP model based on linearized power flow for distribution with application to DER benefit studies

被引:12
作者
Wang, Beibei [1 ]
Tang, Ni [2 ]
Bo, Rui [3 ]
Li, Fangxing [4 ]
机构
[1] Southeast Univ, Dept Elect Engn, Nanjing, Peoples R China
[2] State Grid Wuxi Power Supply Co, Wuxi, Jiangsu, Peoples R China
[3] Missouri Univ Sci & Technol, Dept Elect & Comp Engn, Rolla, MO 65409 USA
[4] Univ Tennessee, Dept Elect Engn & Comp Sci, Knoxville, TN 37996 USA
基金
中国国家自然科学基金;
关键词
Locational marginal price (LMP); Three-phase distribution LMP (TDLMP); Distributed energy resources (DERs); Voltage constraints; Imbalance; DISTRIBUTION NETWORKS; RELAXATION; REDUCTION;
D O I
10.1016/j.ijepes.2021.106884
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
The rapid development of distributed energy resources and active distribution networks has resulted in increased interest in the concept of a distribution locational marginal price (DLMP). In this paper, first, an extension of a previous DLMP model based on linearized power flow - distribution (LPF-D) is applied to provide an explicit formulation of the voltage cost component (VCC), together with the energy cost component (ECC) and the loss cost component (LCC). Then, this DLMP model is extended to include a three-phase distribution model to form the proposed three-phase DLMP (TDLMP) based on the three-phase LPF-D (TLPF-D). An imbalance cost component (ICC) is included in this three-phase DLMP model. Finally, the proposed TDLMP model is applied to various case studies to demonstrate the benefit of distributed energy resources (DERs), including distributed generation (DG) and demand response (DR). The case studies verify that the VCC and the ICC are significant components of the TDLMP in low-voltage and unbalanced distribution networks. In addition, DERs can significantly reduce the TDLMP, especially the VCC and ICC, by improving the voltages and reducing phase imbalance. Thus, the proposed TDLMP provides a quantitative framework to evaluate the economic benefits of DERs in competitive market-based distribution operations.
引用
收藏
页数:13
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