Journal of Science Engineering Technology and Management Science

Environmental research focuses on renewable energy systems because there is increasing power consumption and limited availability of traditional energy resources. The suggested solar power producing circuit consists of three critical components: solar array and boost converter and boost inverter. A dc-dc boost converter enables both battery recharge and the conversion of photovoltaic array low voltage into high-quality sinusoidal ac voltage. Unfiltered solar energy from the boost inverter directs its output to independent loads. Due to rising power requirements and conventional energy source depletion researchers now pursue renewable energy systems. The solar power generating circuit presents three major components which include the solar array together with boost converter along with boost inverter. The dc-dc boost converter powers up the battery supply by transforming solar array voltage from low to high-quality sinusoidal form. The boost inverter can transmit solar energy directly to its independent load since it does not require intermediate filters or conversion stages.

Keywords : Fuzzy logic controller, solar photovoltaic, boost converter, boost inverter, and total harmonic distortion

Author : Sasidhar Reddy and Sirisha

Title : Boost Converter and Boost Inverter Implementation of a Fuzzy Logic Controller for Photovoltaic Power Generation

Volume/Issue : 2025;02(04)

Page No : 01-07

The main purpose of studying variable drive systems with Switching Reluctance Motors (SRM) for torque density enhancement and efficiency improvement focuses on minimizing torque fluctuations. This ripple occurs due to the change in excitation current between adjacent phases. A smooth torque requires exact control of how switches turn the motor on and off. Simulation of all possible angle selection consequences appears in this research. The excitation current shape in the stator coil and its overlapping point with its adjacent coil depends on how precisely the turn-on and turn-off angles are selected as illustrated by the case of extended turn-on and turn-off excitation timing. Correct selection of turn-on and turn-off angles enables the implementation of transition phase smoothness. Researchers have performed a comprehensive analysis to determine how the modified excitation current interacts with torque ripple based on different dwell angle conditions. Proper selection of these parameters leads to the generation of sinusoidal current forms.

Keywords : Torque ripple, electric motor, switched reluctance motor, FE analysis, and dwell angle

Author : Madhu

Title : Effects of Dwell Angles of Current in Switched Reluctance Motors

Volume/Issue : 2025;02(04)

Page No : 08-14

The proposed study introduces an indirect field-oriented controller to handle five-phase induction motor drives. The controller has its foundation on the fuzzy logic control technique. This paper uses the MATLAB/Simulink package to conduct its simulations. The experimental control system was created through a digital signal processing (DSP) circuit. The performance testing of the proposed system occurs in different operating settings. The proposed controller demonstrates reliability for operation in five-phase induction motor drives with high performance levels. The proposed methods receive verification from experimental trial results and simulation testing.

Keywords : Five-phase induction motor, five-phase inverter, fuzzy logic, and digital signal processor (DSP)

Author : Shalini and Pravallika

Title : Fuzzy Logic Control for DSP-Based Vector Control of a Five-Phase Induction Motor

Volume/Issue : 2025;02(04)

Page No : 15-22

The research concentrated primarily on the meter side of customers because it investigated harmonic effects at K.Wai Perlis' Electrical System Engineering School laboratory. Magnetic fields from harmonic voltage frequencies rotate at the same speed as harmonic frequencies but harmonic currents inside equipment result in operational overheat and performance losses. This disruption produces mechanical noises and equipment vibrations which also causes overheating of equipment and operating efficiency reduction as well as voltage stress against insulation of equipment windings. The research employs Computers and Printers as well as Air Conditioners and Compact Fluorescent Lamps as harmonic-significant loads. The measurement process depends on the Fluke 435 Power Quality Analyzer. The harmonic current parameters fluctuate unpredictably due to the installation of different nonlinear loads. Through this research study the utility obtains substantial knowledge about harmonic effects on their equipment. The utility will gain knowledge about the expenses and performance losses which result from using these pieces of equipment. This paper presents information about harmonic investigation expenses through THD measurement as well as energy loss costs.

Keywords : THD, cost, energy losses, nonlinear loads, and harmonics

Author : Rohit, Shanmukh and Srinivasa Rao

Title : Nonlinear Loads Effect on Harmonics in the Laboratory

Volume/Issue : 2025;02(04)

Page No : 23-26

This research analyses how variations in multi-area power system automatic generation control (AGC) work when an HVDC system functions with an HVAC system taking into account system parameter alterations. A fuzzy logic controller serves to connect four areas through parallel HVAC/HVDC transmission link systems also referred to as asynchronous tie lines. A linear model of HVAC/HVDC becomes available for evaluation purposes while analyzing abrupt load variations in the system. The investigation uses a four-area interconnected thermal power system. A system whose dynamic performance has been improved will deliver appropriate solutions to the automatic generation control problem affecting the four-region electrical power system. The controller robustness evaluation happens through varying system parameters. The simulation output demonstrates effectiveness of this approach. Advanced Fuzzy logic controllers in MATLAB-Simulink perform dynamic system analysis both in presence of and absence of an HVDC link. The suggested system achieves better results regarding settling time and overshoot compared to the existing model.

Keywords : Fuzzy logic controller, HVDC link, automatic generation control, area control error, and generation rate limitation

Author : Ramesh and Vijay

Title : HVDC Links for Automatic Generation Control in a Multi-Area Interconnected Power System

Volume/Issue : 2025;02(04)

Page No : 27-33