Journal ArticleDOI
An Adaptive Power Factor Controller for Three-Phase Induction Generators
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TLDR
In this paper, an adaptive power factor controller for three-phase inducti on generators and also for motors is proposed, which senses the reactive current drawn by the machine and accordingly provides the needed reactive power to improve the power factor to as close to unity as possible.Abstract:
An adaptive power factor controllerfor three-phase inducti on generators (and also for motors) is proposed in this paper. The controller senses the reactive current drawn by the machine and accordingly provides the needed reactive power to improve the power factor to as close to unity as possible. The controller is a modular, low-cost, harmonic free device. It does not create any transients in line current. It is designed to eliminate the self-excitation problems associated with induction generators. The controller is tested on an induction generator, which is being used in wind energy and similar applications.read more
Citations
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Journal ArticleDOI
A review of induction motors signature analysis as a medium for faults detection
TL;DR: The fundamental theory, main results, and practical applications of motor signature analysis for the detection and the localization of abnormal electrical and mechanical conditions that indicate, or may lead to, a failure of induction motors are introduced.
Journal ArticleDOI
Three-phase self-excited induction generators: an overview
TL;DR: A survey of the literature over the past 25 years discussing the process of self-excitation and voltage buildup, modeling, steady-state, and transient analysis, reactive power control methods, and parallel operation of SEIGs is presented in this article.
Analysis of self-excited induction generators
TL;DR: An analytical technique using the `Newton-Raphson' method is presented to identify the saturated magnetising reactance and the generated frequency of a self-excited induction generator for a given capacitance, speed and load.
Journal ArticleDOI
Bibliography on the application of induction generators in nonconventional energy systems
TL;DR: Induction generators are increasingly being used in nonconventional energy systems such as wind, mini/micro-hydro, biogas, etc as mentioned in this paper, and the advantages of using an induction generator instead of synchronous generator are well known.
Journal ArticleDOI
Self-excited induction generator research—a survey
TL;DR: The authors in this article reviewed the progress made in self-excited induction generator (SEIG) research and development since its inception and highlighted the current and future issues involved in the development of induction generator technology for its large-scale future applications.
References
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Analysis of self-excited induction generators
TL;DR: An analytical technique using the `Newton-Raphson' method is presented to identify the saturated magnetising reactance and the generated frequency of a self-excited induction generator for a given capacitance, speed and load.
Analysis of self-excited induction generators
TL;DR: In this article, an analytical technique using the ''Newton-Raphson'' method is presented to identify the saturated magnetising reactance and the generated frequency of a self-excited induction generator for a given capacitance, speed and load.
Journal ArticleDOI
Harmonic Power Flow Studies Part I - Formulation and Solution
Daozhi Xia,Gerald T. Heydt +1 more
TL;DR: In this paper, the conventional Newton-Raphson power flow study has been reformulated to permit the inclusion of nonlinear loads, which give rise to harmonic signals which propagate throughout the power system.
Journal ArticleDOI
A Quantitative Analysis of Induction Motor Performance Improvement by SCR Voltage Control
Timothy M. Rowan,Thomas A. Lipo +1 more
TL;DR: In this paper, it was shown that a constant power factor controller results in an operating regime which is substantially poorer than operation at either minimum input power or maximum efficiency, when the motor is driven from a silicon-controlled rectifier (SCR) voltage controller.
Journal ArticleDOI
Improvement in Energy Efficiency of Induction Motors by Means of Voltage Control
TL;DR: In this paper, the authors compared voltage control arrangements consisting of SCRs in terms of the motor efficiency and the amount of harmonic currents generated in a fractional horse-power induction motor.