Trends in electrical engineering (vol4, issue2) by STM Journals Publication

ISSN: 2321-4260

Trends in

Electrical Engineering May - August 2014

(TEE)

端 Developing a Model in Matlab/Simulink Environment for Induction Motor 端 Voltage & Frequency Control of Self Excited Induction Generator

Energy Management for Rural Electrification 端 A Core Loss Model for SRG Based on FEM 端

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Ashok S Department of Electrical Engineering, National Institute of Technology, Calicut, India.

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I take the privilege to present the hard copy compilation for the [Volume 4 Issue (2)] Trends in Electrical Engineering (TEE). The intension of TEE is to create an atmosphere that stimulates creativeness, research and growth in the area of Electrical Engineering The development and growth of the mankind is the consequence of brilliant Research done by eminent Scientists and Engineers in every field. TEE provides an outlet for Research findings and Reviews in areas of Electrical Engineering found to be relevant for National and International recent developments & research initiative. The aim and scope of the Journal is to provide an academic medium and an important reference for the advancement and dissemination of Research results that support high level learning, teaching and research in the domain of Electrical Engineering . Finally, I express my sincere gratitude and thanks to our Editorial/ Reviewer board and Authors for their continued support and invaluable contributions and suggestions in the form of authoring writeups/ reviewing and providing constructive comments for the advancement of the journals. With regards to their due continuous support and co-operation, we have been able to publish quality Research/Review findings for our customers base. I hope you will enjoy reading this issue and we welcome your feedback on any aspect of the Journal.

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Trends in Electrical Engineering

Contents

1. Developing a Model in Matlab/Simulink Environment for Induction Motor Considering Core Loss and Stray Load Loss Mohammad Abdul Mannan, Rupak Kanti Dhar, Md. Ehtashamul Haque

2. Voltage and Frequency Control of a Self Excited Induction Generator Using VSI Sunny Vig, Kamalkant Sharma, Balwinder Singh Surjan

3. Energy Management for Rural Electrification using Hybrid Optimization Model for Electric Renewable Kumar H., Sharma K. K., Vig S., Singh B.

4. A Core Loss Model Based on Finite Element Method for Switched Reluctance Generator Considering Different Control Modes Ganji Babak, Heidarian Mahdi

Trends in Electrical Engineering ISSN: 2249-4774(online), ISSN: 2321-4260(print) Volume 4, Issue 2 www.stmjournals.com

Developing a Model in Matlab/Simulink Environment for Induction Motor Considering Core Loss and Stray Load Loss Mohammad Abdul Mannan, Rupak Kanti Dhar*, Md. Ehtashamul Haque Department of Electrical and Electronic Engineering, American International University-Bangladesh, Kemal Ataturk Avenue, Banani, Dhaka-1213, Bangladesh Abstract This paper focuses on a Matlab/Simulink model of a squirrel-cage induction motor with consideration of core loss and stray load loss. This model is based on some mathematical expressions and also described through an equivalent circuit including core loss and stray load loss. The model of induction motor has been developed based on the state space equations in a synchronously rotating reference frame, where core loss and stray load losses were taken under consideration. The developed model allows testing the performance of an induction motor in different operating conditions and the performance of different designed control systems to control speed, flux and torque of an induction motor. The designed model has been tested for several operating conditions through the simulation in Matlab/Simulink environment.

Keywords: Induction motor, machine modeling, core loss, stray load, field-oriented control, vector control

Trends in Electrical Engineering ISSN: 2249-4774(online), ISSN: 2321-4260(print) Volume 4, Issue 2 www.stmjournals.com

Voltage and Frequency Control of a Self Excited Induction Generator Using VSI Sunny Vig*, Kamalkant Sharma, Balwinder Singh Surjan Electrical Engg. Department, Punjab Engineering College, University of Technology, Chandigarh, India Abstract In remote areas of a country where it is impossible or too expensive to access main power lines, one solution to obtain electric power is to use a small stand-alone hydro power plant. In such a situation, the turbine is been driven by a steady flow of water in a river. It is preferable to use a self-excited induction generator, due to its low cost an ruggedness. The voltage and frequency of such an induction generator in stand- alone operation are very sensitive to load changes. Various methods had been proposed to control the voltage and frequency of a self excited induction generator. This paper describes that by applying voltage source inverter in parallel to the load, the regulation of voltage and frequency can be achieved. After developing the controller, regulated voltage and frequency operation of the self-excited induction generator is simulated by using MALAB with a squirrel cage type induction generator. The aim is the total elimination of the AC capacitor bank.

Keywords: Induction Generator, Vf Control, PWM, VSI

Trends in Electrical Engineering ISSN: 2249-4774(online), ISSN: 2321-4260(print) Volume 4, Issue 2 www.stmjournals.com

Energy Management for Rural Electrification using Hybrid Optimization Model for Electric Renewable Kumar H.1*, Sharma K. K.1, Vig S.1, Singh B.2 1

Deptt. of Electrical Engineering, Chandigarh University, Gharuan, Punjab, India Department of Electrical Engineering, PEC University of Technology, Chandigarh, Punjab, India

Abstract India ranks fourth in terms of purchasing power and is eleventh largest economy of the world. Solar Energy, Animal wastes, and Crop residues are some of the major renewable sources available in rural areas of India that can be harnessed in an efficient way to meet the energy demand. After assessing the Existing Village (Nangal), it was found that Hybrid Renewable Energy System is an optimum solution for complete electrification of rural areas. These natural resources can be used to produce energy to enhance the living standards of the villagers, provide clean energy and reducing the burden on conventional grid. This paper aims to devise a plan for a village with a complete solution to meet domestic energy demand of a village by Renewable energy sources and reliable electricity supply.

Keywords: HRES, renewable sources of energy, electrification of village, domestic load, HOMER

Trends in Electrical Engineering ISSN: 2249-4774(online), ISSN: 2321-4260(print) Volume 4, Issue 2 www.stmjournals.com

A Core Loss Model Based on Finite Element Method for Switched Reluctance Generator Considering Different Control Modes Ganji Babak, Heidarian Mahdi* Faculty of Electrical and Computer Engineering, University of Kashan, Kashan, Iran Abstract In the present paper, core loss modeling of switched reluctance generator (SRG) is proposed for the first time. Using ANSYS finite element (FE) package, 2D FE transient analysis of SRG is carried out and the stator pole flux waveform is predicted. To determine the flux waveforms in the different parts of the machine, an introduced mathematical flux model is considered and its algorithm is implemented in ANSYS Parametric Design Language (APDL). Core loss related to the determined flux waveforms are calculated based on the improved Steinmetz equation. The core loss model created totally in APDL can be applied to different conventional types of SRG. Applying the developed core loss model to an 8/6 SRG, simulation results including the flux waveforms and relevant core loss are presented for both single pulse control mode and PWM control mode.

Keywords: Switched Reluctance Generator, Core Loss, Finite Element Analysis