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Your search keyword '"A.M. Omar"' showing total 2 results
Start Over Author "A.M. Omar" Journal indonesian journal of electrical engineering and computer science
2 results on '"A.M. Omar"'

1. Design and development of three stages maximum power tracking solar charge controller

Author

Nur Iqtiyani Ilham, M. Z. Hussin, E. H. Mat Saat, Y. Yusrina, N. H. Abdul Rahman, and A.M. Omar

Subjects
Control and Optimization, Computer Networks and Communications, business.industry, Computer science, Buck converter, Photovoltaic system, Electrical engineering, Battery (vacuum tube), Maximum power point tracking, Charge controller, Hardware_GENERAL, Hardware and Architecture, Signal Processing, Charge control, Electrical and Electronic Engineering, business, Lead–acid battery, Stand-alone photovoltaic maximum power point tracking, Information Systems, Voltage
Abstract

This paper presents the design of a Three Stages Maximum Power Point Tracking (MPPT) charge controller for improving the charging/discharging control of the battery. In this research, Buck Converter is used to regulate the voltage from the Photovoltaic (PV) module to the required voltage. This research is limited to Valve Regulated Lead Acid (VRLA) battery for 12V system voltage. The charge control algorithm envisages controlling the charging and discharging action in all the three stages of battery charging, bulk, absorption, and float. The idea is to control the battery charging and discharging status until meeting the battery set-point. The set-point is limited to High Voltage Disconnect (HVD), Low Voltage Disconnect (LVD) and Load Voltage Reconnect (LVR) to protect the battery from over-charging and deep-discharging. The results obtained demonstrate the good performance of the charge controller. With the application of the MPPT algorithm in the bulk stage, the time taken to get the battery to fully charged state becomes faster The regulation power from the converter to the inverter has performed well and the switching relay is managed to be controlled.

Published
2020
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2. System protection for lithium-ion batteries management system: a review

Author

Khairul Safuan Muhammad, A.M. Omar, L. Rimon, and Shahril Irwan Sulaiman

Subjects
Battery (electricity), Control and Optimization, Computer Networks and Communications, Computer science, chemistry.chemical_element, Topology (electrical circuits), Hardware_PERFORMANCEANDRELIABILITY, 02 engineering and technology, Fault detection and isolation, Battery management systems, Robustness (computer science), 0502 economics and business, 0202 electrical engineering, electronic engineering, information engineering, BMS, Electrical and Electronic Engineering, Overheating (electricity), Lithium-Ion, Energy, Protection, 020208 electrical & electronic engineering, 05 social sciences, High voltage, Reliability engineering, chemistry, Hardware and Architecture, visual_art, Signal Processing, Electronic component, Management system, visual_art.visual_art_medium, Lithium, Safety, Short circuit, 050203 business & management, Information Systems, Voltage
Abstract

Robustness of a battery management system (BMS) is a crucial issue especially in critical application such as medical or military. Failure of BMS will lead to more serious safety issues such as overheating, overcharging, over discharging, cell unbalance or even fire and explosion. BMS consists of plenty sensitive electronic components and connected directly to battery cell terminal. Consequently, BMS exposed to high voltage potential across the BMS terminal if a faulty cell occurs in a pack of Li-ion battery. Thus, many protection techniques have been proposed since last three decades to protect the BMS from fault such as open cell voltage fault, faulty cell, internal short circuit etc. This paper presents a review of a BMS focuses on the protection technique proposed by previous researcher. The comparison has been carried out based on circuit topology and fault detection technique

Published
2019
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