Conference Papers

Permanent URI for this collectionhttps://idr.nitk.ac.in/handle/123456789/28506

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    Virtual laboratory platform for enhancing undergraduate level induction motor course using MATLAB/Simulink
    (2012) Syal, A.; Gaurav, K.; Moger, T.
    With the advent of various simulation software packages and low cost personal computing devices in the market, computer-aided teaching tools have become an important part of present pedagogy. These tools support the classroom teaching by enabling the instructor to illustrate the working of various systems by means of computer generated graphics. This paper presents a very easy and interactive model based on computer simulation in MATLAB/Simulink to simulate the no load test, load test and blocked rotor test on 3-phase slip ring and squirrel cage induction motors. The well known equivalent circuit model along with the torque equation is used to model the motor without considering the effects of magnetic saturation. The simulation environment plots all relevant graphs including circle diagram of the given motor, thus acting as a complete graphical teaching aid for the induction machine course at undergraduate level. This model facilitates learning especially for the students pursuing a distance-learning/correspondence course which does not provide them with the laboratory facilities. © 2012 IEEE.
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    Harnessing hydroelectric power using Savonius rotor coupled with asynchronous generator connected to grid
    (IEEE Computer Society help@computer.org, 2013) Gao, S.; Pudur, R.
    The present investigation is aimed at exploring the feasibility of using vertical axis turbine which, otherwise, is ideally suited for wind energy conversion system (WECS), for hydropower generation. River water currents are potentially significant and reliable source of power generation and currently no significant work has been carried out to tap this source of energy. Electrical energy can be efficiently extracted from these free running rivers using vertical axis rotors that are similar in design and function to wind turbines but extract energy through hydrodynamic rather than aerodynamic mechanism. This paper presents possible generation of electrical power using Savonius rotor by coupling it with asynchronous generator, connected directly to grid. The model of each part such as Savonius rotor, asynchronous generator, and transmission line is proposed using MATLAB/Simulink. The model is tested for different velocities of river water and results are presented. © 2013 IEEE.
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    Performance analysis of Grid Integrated Hybrid Renewable Energy System configuration application to Residential Buildings
    (Institute of Electrical and Electronics Engineers Inc., 2021) Gudimindla, H.; Manjunatha Sharma, K.; Sandhya, S.
    Recent technological advancements and cost reduction drives increasing the penetration of renewable energy sources with grid. Utilisation factor of renewable energy sources is low due to dependency on the environmental conditions. Basically, hybrid energy systems provide constant, high-quality power for the remote communities. The sizing of the hybrid system is significant to meet the load demand of residential buildings. In this paper, A simple optimal sizing algorithm is used to model the Wind turbine and PV system to meet the residential load. Quantitave feedback theory (QFT) based robust controller is implemented for the proposed sub-module integrated PV converter and the PMSG based wind energy conversion system to extract maximum power using simple genetic algorithm. Performance of the QFT controller is analysed through MATLAB simulations under varying irradiance and wind conditions. © 2021 IEEE.