Title: Assessment of excitation capacitance for a multiphase isolated self-excited induction generator for power generation

Authors: Alok Kumar Mohanty; Krishna Bihari Yadav

Addresses: Department of Electrical and Electronics Engineering, National Institute of Technology, Jamshedpur, Jharkhand, India ' Department of Electrical and Electronics Engineering, National Institute of Technology, Jamshedpur, Jharkhand, India

Abstract: Self-excited induction generators are used in remote places for electrical power generation from both conventional as well as non-conventional sources. An induction generator can operate as a capacitor-excited machine, provided the machine is driven beyond synchronous speed and a suitable capacitor is connected across its terminals. In this paper, a technique has been proposed to estimate the values of excitation capacitances to maintain desired terminal voltages in a multiphase induction generator. A mathematical model using nodal admittance technique of a six-phase induction generator has been analysed. Genetic algorithm technique is applied here to obtain the unknown parameters and the capacitance requirements to obtain desired terminal voltages under various operating conditions.

Keywords: multiphase induction generators; excitation capacitance; power generation; terminal voltages; mathematical modelling; nodal admittance.

DOI: 10.1504/IJPELEC.2017.082938

International Journal of Power Electronics, 2017 Vol.8 No.2, pp.148 - 158

Received: 08 Dec 2015
Accepted: 20 Dec 2016
Published online: 15 Mar 2017 *

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