Optimal Placement and Sizing of Electric Vehicle Charging Infrastructure in a Grid-Tied DC Microgrid Using Modified TLBO Method

被引:44
作者
Krishnamurthy, Nandini K. [1 ]
Sabhahit, Jayalakshmi N. [1 ]
Jadoun, Vinay Kumar [1 ]
Gaonkar, Dattatraya Narayan [2 ]
Shrivastava, Ashish [3 ]
Rao, Vidya S. [4 ]
Kudva, Ganesh [1 ]
机构
[1] Manipal Acad Higher Educ, Manipal Inst Technol, Dept Elect & Elect Engn, Manipal 576104, Karnataka, India
[2] Natl Inst Technol Karnataka, Dept Elect & Elect Engn, Mangalore 575025, India
[3] Shri Vishwakarma Skill Univ, Skill Fac Engn & Technol, Gurugram 122003, Haryana, India
[4] Manipal Acad Higher Educ, Manipal Inst Technol, Dept Instrumentat & Control Engn, Manipal 576104, Karnataka, India
关键词
DC microgrid; electric vehicle charging station; fuel cell; renewable energy sources; teaching-learning-based optimization; STATION; SYSTEM; OPTIMIZATION; ALLOCATION;
D O I
10.3390/en16041781
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
In this work, a DC microgrid consists of a solar photovoltaic, wind power system and fuel cells as sources interlinked with the utility grid. The appropriate sizing and positioning of electric vehicle charging stations (EVCSs) and renewable energy sources (RESs) are concurrently determined to curtail the negative impact of their placement on the distribution network's operational parameters. The charging station location problem is presented in a multi-objective context comprising voltage stability, reliability, the power loss (VRP) index and cost as objective functions. RES and EVCS location and capacity are chosen as the objective variables. The objective functions are tested on modified IEEE 33 and 123-bus radial distribution systems. The minimum value of cost obtained is USD 2.0250 x 10(6) for the proposed case. The minimum value of the VRP index is obtained by innovative scheme 6, i.e., 9.6985 and 17.34 on 33-bus and 123-bus test systems, respectively. The EVCSs on medium- and large-scale networks are optimally placed at bus numbers 2, 19, 20; 16, 43, and 107. There is a substantial rise in the voltage profile and a decline in the VRP index with RESs' optimal placement at bus numbers 2, 18, 30; 60, 72, and 102. The location and size of an EVCS and RESs are optimized by the modified teaching-learning-based optimization (TLBO) technique, and the results show the effectiveness of RESs in reducing the VRP index using the proposed algorithm.
引用
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页数:27
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