Abstract
For many power distribution system problems such as voltage regulation and power loss, distributed generation (DG) provides a promising solution. DG location and size are considered very important in deciding maximum benefit to the system when connected to the grid. In this paper, the fuzzy approach is used to decide DG locations, where it evaluates the inputs such as the real loss index and the voltage index to generate the DG location index for placing DG. In these locations, the differential evolution algorithm is computed to optimize the DG capacities, which will maximize the objective function representing the maximum benefit of the system. The invested amount is recovered within the planning period of the system, by considering various costs like the cost of energy saving, cost of DG investment, cost of DG operation and maintenance, and cost of DG power generation. The proposed methodology is tested on the Indian 43-bus practical distribution system and standard IEEE 33-bus system. The results obtained were discussed and presented.
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Appendix
Appendix
Data for IEEE 33 Bus System
The line data and bus data for IEEE 33 bus system are given in Table 8. The single line diagram of the system is given Fig. 9.
Line diagram of IEEE 33 bus distribution system
Data for Practical Distribution System
The data corresponding to the Indian 43-bus practical distribution system [14] is tabulated in Table 9 and the single line diagram of the system is given in Fig. 10. The values of the system parameters considered are as follows: Base MVA = 100, Base kV = 11 kV, Line Resistance = 0.55 Ω/km, Line Reactance = 0.35 Ω/km, Power factor = 0.7 lagging, and Diversity factor = 1.
Line diagram of Indian 43-bus practical distribution system. (courtesy: APSPDCL, Tirupati)
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Dhananjaya Babu, K., Lakshmi Devi, A. Cost–Benefit Analysis Based DG Placement and Sizing in Practical Distribution System Using Fuzzy and DE Algorithm. J. Inst. Eng. India Ser. B 101, 463–473 (2020). https://doi.org/10.1007/s40031-020-00461-w
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DOI: https://doi.org/10.1007/s40031-020-00461-w