The Impact of Thermal Degradation on Properties of Electrical Machine Winding... - Academia.edu

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TOP PAPERS FROM YOUR NEWSFEED Darren F . Kavanagh Institute of Technology, Carlow, Aerospace, Mechanical & Electronic Engineering, Faculty Member The Impact of Thermal Degradation on Properties of Electrical Machine Winding Insulation Material Interturn stator short circuits can develop quickly leading to serious damage of an electric machine. However, degradation mechanisms of winding insulation material are not yet fully understood. Therefore, the main contribution of this paper is the analysis of the impact of thermal ageing on the electrical properties of the thin-film winding insulation. The insulation samples have been aged thermally at 200 C -275 C and for 100-1600 h. After ageing, impedance spectroscopy measurements were undertaken on the samples and equivalent-circuit model (ECM) parameters fitted for each measurement.... Download Save to Library Mohiuddin Mahbub BRAC University, Department of Electrical and Electronic Engineering, Graduate Student Practical handbook for non electrical professionals Download Save to Library Iftikhar Manzoor University of Engineering & Technology Lahore, Pakistan, Electrical Engineering, Graduate Student Concepts of Power Electronic Step down ,Step up Choppers ,Commutation Circuit Download Save to Library Cosmas Ogbuka University of Nigeria, Nsukka, Electrical Engineering, Faculty Member TOWARDS EFFECTIVE HARNESSING OF WIND ENERGY FOR POWER GENERATION IN NIGERIA Nigeria, like most developing nations, have over the years, concentrated on conventional energy resources (hydro and fossil fuel) as the major energy sources for power generation. Power generation requires the availability of raw energy resources. Conventional energy sources are limited and unfriendly to the environment. Nigeria desires, and of course, have been making efforts to increase electric power generation to meet the ever increasing energy demand. This paper looks at the enormous wind energy potentials in Nigeria. Wind speed which is the most important factor in settingup a Wind... Download Save to Library Cosmas Ogbuka University of Nigeria, Nsukka, Electrical Engineering, Faculty Member Field Orientation Control Of Three Phase Induction Motor: A Modular Approach This paper focuses on the induction motor control using field orientation control (FOC) approach. The work employed the transformation principles of Park and Clarke which are standard tools for the analysis and modeling of a symmetrical induction motor, where the induction machine is represented as a mathematical model with input and output. The mathematical equations of the per unit model of the induction machine was simulated with MATLAB/Simulink software. The control scheme has an inner and outer loop using a PI controller. After the mathematical modeling and simulation, it was easily... Download Save to Library Cosmas Ogbuka University of Nigeria, Nsukka, Electrical Engineering, Faculty Member A RENEWED CALL FOR RENEWABLE ENERGY EXPLOITATION FOR SUSTAINABLE NATIONAL DEVELOPMENT Economic growth, rapid industrialization and high standard of living of the citizens of any nation depend, largely, on the extent of availability of affordable energy. Nigeria is an energy-rich nation, abundantly blessed with renewable energy resources. One would expect a heavy reliance on these environmentally- friendly alternative energy sources as obtainable in Europe and other developed economies of the world. On the contrary, the nation depends, almost entirely, on fossil fuels, fuel wood and hydro power from large dams with their attendant negative environmental impacts; hence this... Download Save to Library Cosmas Ogbuka University of Nigeria, Nsukka, Electrical Engineering, Faculty Member MODELING AND SIMULATION OF THE START- UP PERFORMANCE OF GRID-CONNECTED PERMANENT MAGNET SYNCHRONOUS MOTOR (PMSM Electrical machines are an indispensable element of modern industrialization. In the world of electrical machines, the Permanent Magnet Synchronous Motor (PMSM) is becoming prominent. As the name implies, it uses permanent magnet as its source of field excitation, and this brings about considerable increase in efficiency. The purpose of this work is to study the start-up performance of grid-connected PMSM. The mathematical model of the PMSM was developed, and was simulated in MATLAB/SIMULINK environment. The motor's response like rotor speed, currents in the 3 phases, and torque components... Download Save to Library Iftikhar Manzoor University of Engineering & Technology Lahore, Pakistan, Electrical Engineering, Graduate Student Electricity production through Thermocouple Solar Sheets It is a smart energy project with thermocouple principle. Download Save to Library Iftikhar Manzoor University of Engineering & Technology Lahore, Pakistan, Electrical Engineering, Graduate Student DrawBasic signals and systems Matlab code and graphs of Drawbasic signal and system Download Save to Library luciano costa Universidade de São Paulo, IFSC - Instituto de Física de São Carlos, Faculty Member Circuits, Oscillations, and the Kuramoto Model as Visualized by Phasors Several modeling approaches can benefit from data and dynamics transformations that allow simplification, generalization , and/or more conceptual treatment of the studied problem. In this work, we discuss the phasor representation, capable of mapping sinusoidal signals into values in the complex plane, which can be associated to vectors. As such, phasors allow visualizating and understanding amplitude and phase relationships, such as relative phase and phase coherence. The potential of phasors for diverse applications is illustrated with respect to AC linear circuits, filters, oscillators... Download Save to Library Academia, 580 California St., Suite 400, San Francisco, CA, 94104 Unsubscribe   Privacy Policy   Terms of Service   © 2020 Academia