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Charlese JK, Abungu DNO. "Effect of Distributed Generation Penetration on System Power Losses and Voltage Profiles." IInternational Journal of Scientific and Research Publications. 2013;3(ISSN 2250-3153).j._kilonzi_and_dr._abungu_2.pdf
Charlese JK, Abungu DNO. "A Combined Sensitivity factor based GA-IPSO approach for System Loss Reduction and Voltage Profile Enhasment." International Journal of Innovative Research in Engineering and Science. 2013;12(2).j._kilonzi_and_dr._abungu_3.pdf
Charlese JK, Abungu DNO. "A GA/IPSO based approach for system loss reduction and voltage profile improvement employing arithmetic crossover and mutation." Internation Journal of Engineering Science and Technology (IJEST). 2013;5(07):1501-1510.j._kilonzi_and_dr._abungu_2.pdf
C KJ, O AN. "Effects of Distributed Generation penetration on system power losses and voltage profiles." International Journal of Scientific and Research Publications. 2013;3(12):1-8. Abstractijsrp-p24585.pdf

In present times, the use of DG systems in large amounts in different power distribution systems has become very popular and is growing on with fast speed. Although it is considered that DG reduces losses and improves system voltage profile, this paper shows that this is not always true. The paper presents a GA-IPSO based approach which utilizes combined sensitivity factor analogy to optimally locate and size a multi-type DG in IEEE 57-bus test system with the aim of reducing power losses and improving the voltage profile. The multi-type DG can operate as; type 1 DG (DG generating real power only), type 2 DG (DG generating both real and active power) and type 3 DG (DG generating real power and absorbing reactive power). It further shows that though the system losses are reduced and the voltage profile improved with the location of the first DG, as the number of DGs increases this is not the case. It reaches a point where any further increase in number of DGs in the network results to an increase in power losses and a distortion in voltage profile.

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