Abstract
The extent of real power loss and voltage deviation associated with overloaded feeders in radial distribution system can be reduced by reconfiguration. Reconfiguration is normally achieved by changing the open/closed state of tie/sectionalizing switches. Finding optimal switch combination is a complicated problem as there are many switching combinations possible in a distribution system. Hence optimization techniques are finding greater importance in reducing the complexity of reconfiguration problem. This paper presents the application of firefly algorithm (FA) for optimal reconfiguration of radial distribution system with distributed generators (DG). The algorithm is tested on IEEE 33 bus system installed with DGs and the results are compared with binary genetic algorithm. It is found that binary FA is more effective than binary genetic algorithm in achieving real power loss reduction and improving voltage profile and hence enhancing the performance of radial distribution system. Results are found to be optimum when DGs are added to the test system, which proved the impact of DGs on distribution system.
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The authors are grateful to the Department of Electrical and Electronics Engineering, Valliammai Engineering College for the valuable technical discussions during the course of writting this paper.
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Appendices
Appendix I: Initial configuration of the 33 bus radial distribution system
Appendix II: The line data and bus data of the 33 bus test system
Line No | Sending Bus | Receiving Bus | Resistance (Ω) | Reactance (Ω) | P 1 (kW) | Q 1 (kVAr) |
|---|---|---|---|---|---|---|
1 | 1 | 2 | 0.0922 | 0.0477 | 120 | 60 |
2 | 2 | 3 | 0.493 | 0.2511 | 100 | 40 |
3 | 3 | 4 | 0.366 | 0.1864 | 60 | 80 |
4 | 4 | 5 | 0.3811 | 0.1941 | 70 | 30 |
5 | 5 | 6 | 0.819 | 0.707 | 80 | 20 |
6 | 6 | 7 | 0.1872 | 0.6188 | 200 | 100 |
7 | 7 | 8 | 1.7114 | 1.2351 | 200 | 100 |
8 | 8 | 9 | 1.03 | 0.74 | 90 | 20 |
9 | 9 | 10 | 1.04 | 0.74 | 60 | 20 |
10 | 10 | 11 | 0.1966 | 0.065 | 50 | 30 |
11 | 11 | 12 | 0.3744 | 0.1238 | 60 | 35 |
12 | 12 | 13 | 1.468 | 1.155 | 60 | 35 |
13 | 13 | 14 | 0.5416 | 0.7129 | 120 | 80 |
14 | 14 | 15 | 0.591 | 0.526 | 60 | 10 |
15 | 15 | 16 | 0.7463 | 0.545 | 60 | 20 |
16 | 16 | 17 | 1.289 | 1.721 | 60 | 20 |
17 | 17 | 18 | 0.732 | 0.574 | 90 | 40 |
18 | 2 | 19 | 0.164 | 0.1565 | 90 | 40 |
19 | 19 | 20 | 1.5042 | 1.3554 | 90 | 40 |
20 | 20 | 21 | 0.4095 | 0.4784 | 90 | 40 |
21 | 21 | 22 | 0.7089 | 0.9373 | 90 | 40 |
22 | 3 | 23 | 0.4512 | 0.3083 | 90 | 50 |
23 | 23 | 24 | 0.898 | 0.7091 | 420 | 200 |
24 | 24 | 25 | 0.896 | 0.7011 | 420 | 200 |
25 | 6 | 26 | 0.203 | 0.1034 | 60 | 25 |
26 | 26 | 27 | 0.2842 | 0.1447 | 60 | 25 |
27 | 27 | 28 | 1.059 | 0.9337 | 60 | 20 |
28 | 28 | 29 | 0.8042 | 0.7006 | 120 | 70 |
29 | 29 | 30 | 0.5075 | 0.2585 | 200 | 600 |
30 | 30 | 31 | 0.9744 | 0.963 | 150 | 70 |
31 | 31 | 32 | 0.3105 | 0.3619 | 210 | 100 |
32 | 32 | 33 | 0.341 | 0.5302 | 60 | 40 |
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Rajalakshmi, N., Padma Subramanian, D. & Thamizhavel, K. Performance Enhancement of Radial Distributed System with Distributed Generators by Reconfiguration Using Binary Firefly Algorithm. J. Inst. Eng. India Ser. B 96, 91–99 (2015). https://doi.org/10.1007/s40031-014-0126-8
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DOI: https://doi.org/10.1007/s40031-014-0126-8