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The 15th Scientific day : Bridging Science, Engineering, Technology & Industry for Cambodia's Growth
Published: July 31,2026Comparison Analysis of Deep Learning and Tree-Based Homogeneous Ensemble Learning Predictive Models on the KHR/USD Daily Official Exchange Rate
Published: July 31,2026Comparing Time Series, Machine Learning, and Deep Learning Models for Paddy Rice Price Forecasting in Battambang Province, Cambodia
Published: July 31,2026The Forecasting for Cambodia’s Rice Production Using Multiple Linear Regression and Tree – Based Ensemble Learning Methods
Published: July 31,2026From Educational Model to Achievements - Classifying Post-Graduate Success with Machine Learning
Published: July 31,2026Analysis on Machine Learning Models for Imbalanced Data Problem in Payment Fraud Detection
Published: July 31,2026A Computational Approach to Labor Market Analytics: Analyzing Skill Trends in Cambodia Using an LLM-Based Pipeline
Published: July 31,2026Recognizing Khmer Handwritten Digits with the Power of Sequential RNNs
Published: July 31,2026KVerifyID: A Hybrid Multimodal Approach for Khmer Online Writer Verification
Published: July 31,2026Service Restoration in the Distribution System with Voltage Control Devices using Improved Sequential Opening Branches (ISOB)
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1. Energy Technology and Management Unit, Research and Innovation Center, Institute of Technology of Cambodia, Russian Federation Blvd., P.O. Box 86, Phnom Penh, Cambodia
Received: September 11,2023 / Revised: December 06,2023 / December 06,2023 / / Accepted: December 31,2024 / Available online: December 31,2024
When a line, transformer, or feeder blackout occurred in the power system, service restoration was managed to optimal radial topology to restore maximum out-of-service loads with less switch operation and return the system to a healthy operation. This paper presents a new improved sequential opening branch (ISOB) algorithm to propose a solution for service restoration in power distribution systems by considering On-Load Tap Changer (OLTC) and Capacitor Bank (CB) operation at two different load levels with normal load and heavy load. The proposed method aims to minimize the percentage of voltage deviation index which is a measure of how much the voltage on a feeder deviates from the nominal voltage as the objective function. To ensure that the voltage levels remain within acceptable limits during service restoration, several tests are carried out on IEEE 33-bus and a 70-node system for multiple-fault scenarios.