Abstract
Distribution network is said to be the most visual part of the electric production and the most observed by the utilities for investment, maintenance and operation. The system have been operated under stressed conditions due to limited structure and increasing day to day requirement of power consumption, which have a significant economic and social impact on the system. Due to the system high resistance to impendence ratio, large amount of power loss occur in the network. This loss is the most severity factors affecting the power quality delivered to the end users and depend on power network expansion and load complexity. Among the support methods available for power loss minimization in distribution network, strategic allocation of Distributed Generation (DG) in distribution system is widely considered a viable option. DGs are electrical sources connected to the power network located to consumer’s side but very small when compared with the centralized power plant. They can be in form of wind, mini-hydro, photovoltaic and fuel-based system such as fuel cells and micro-turbines. Therefore, in this study, different approaches for power loss minimization in electrical distribution system with the incorporation of DG by various researchers were reviewed. These approaches have become powerful tools to overcome the problem of power loss minimization in distribution system. Keywords: Distribution System, Power Loss. Distributed Generation, Power Consumption, Photovoltaic System, Centralized Power Plant. DOI: 10.7176/JETP/11-6-02 Publication date: November 30 th 2021
Highlights
The performance of distribution system is the ultimate issues bothering the power distribution system operator
The results showed that, Iterative Particle Swarm Optimization (IPSO) gave better results compared to Evolutionary Programming (EP) and Artificial Immune System (AIS) in terms of power loss reduction and voltage profile, Lieven et al (2012) [23] investigated the effect of converter connected Distributed Generation (DG) units on harmonic losses in the distribution system
The results showed that with the line application of loss reduction index, the losses were reduced and optimization of power export was achieved when DG are integrating into the distribution network, Ajenikoko and Eboda (2015b) [4] discussed the impact of embedded generation on network voltage collapse on distribution network using Voltage Stability Index (VSI)
Summary
The performance of distribution system is the ultimate issues bothering the power distribution system operator. The process in enhancing the efficiency of the distribution network is beset by high real power losses especially in the conventional radial distribution system [5]. This has brought a difficult task to power operators in sustaining a reliable network economically. There is the need for new network planning that can guarantee the changes in the distribution- load configuration for technical constraints and penetration levels, in such a way that the benefit is maximized These limitations must be resolved before introducing DG as an alternative option [31], [36]. Higher penetration levels of DG modified the conventional power flows as the power injected at any point on the feeder with DG units [38,39]
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