Impact Analysis of Energy-Efficient Demand-Side Management in Six-Bus Systems: Replacing Lighting Loads Based on Consumer Preferences

Ahmad Mmzr  Alazmi; Muhammad  Mahbubur Rashid; Tasfia  Hossain; Dhrupadi  Barua; Mohima  Datta; Rashedul  Islam

doi:10.69955/ajoeee.2025.v5i1.76

Authors

Ahmad Mmzr Alazmi University of Science and Technology Chittagong
Muhammad Mahbubur Rashid International Islamic University Malaysia
Tasfia Hossain University of Science and Technology Chittagong
Dhrupadi Barua University of Science and Technology Chittagong
Mohima Datta University of Science and Technology Chittagong
Rashedul Islam University of Science and Technology Chittagong

DOI:

https://doi.org/10.69955/ajoeee.2025.v5i1.76

Keywords:

opf, THD, Power Quality, CFL

Abstract

One of the most important strategies for improving power utilization and lowering total energy usage in distribution systems is energy-efficient Demand Side Management (DSM). Within a substation's load profile, this study assesses the effects of swapping out incandescent lights for consumer-preferred, energy efficient substitutes like LEDs and Compact Fluorescent Lamps (CFLs). Despite certain harmonic distortion issues related to non-linear lighting loads like CFLs, DSM techniques in particular, demand response strategies have been demonstrated to lower power costs, improve power factor, but increase Total Harmonic Distortion (THD). The study evaluates system metrics, including power, THD, power factor, and energy consumption, under different load combinations using MATLAB simulations. The findings of analyzing optimal power flow (OPF) on a six-bus network and modeling a balanced three-phase system show decreases in real power demand, operational losses, and system expenses. Additionally, the economic advantages of DSM interventions are highlighted by differences in Locational Marginal Pricing (LMP) among bus nodes. Results indicate that DSM techniques greatly improve system sustainability and efficiency in power distribution networks by implementing targeted load reduction and energy-efficient lighting.

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Author Biographies

Muhammad Mahbubur Rashid, International Islamic University Malaysia

Dr. Muhammad Mahbubur Rashid received the B.Sc (Eng.) degree in Electrical and Electronic Engineering from Bangladesh University of Engineering and Technology, Dhaka, , in 1992, and the M.Sc. and Ph.D degrees in Electrical Engineering from the University of Malaya, in 2003 and 2007, respectively.
Since 2007, he has been working as an Assistant Professor and Associate Professor in the Department of Mechatronics Engineering, International Islamic University Malaysia. He was working in University of Malaya Power Electronics Drives and Control (UMPEDAC) at University of Malaya as a research assistant. Before that, he was working as a sub-divisional engineer in Bangladesh Power Development Board (1994-2000). Dr. Mahbubur started his career as an assistant engineer in Apex Spinning and Knitting Mills in 1992.
Tasfia Hossain, University of Science and Technology Chittagong

Student, USTC
Dhrupadi Barua, University of Science and Technology Chittagong

Student, USTC
Mohima Datta, University of Science and Technology Chittagong

Student, USTC
Rashedul Islam, University of Science and Technology Chittagong

Student, USTC

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