Power electronic based emulation of synchronous generator with improved accuracy

Upamanyu, K and Narayanan, G (2020) Power electronic based emulation of synchronous generator with improved accuracy. In: 2020 IEEE International Conference on Power Systems Technology, 14-16 September 2020, Bangalore; India.

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Abstract

Existing methods of synchronous generator emulation utilize simplified synchronous machine models which neglect the effects of stator transients for calculating the terminal voltage. These models are suitable when the load current consists of only a fundamental frequency positive sequence component. Unbalanced and non-linear loads draw currents having negative sequence and other low-order harmonic contents as well. This paper details a method which takes into account the stator transients for emulating a synchronous machine. The performances of the emulated synchronous machines using the proposed and conventional methods are compared with that of an actual generator through simulations. The voltage and current waveforms of the actual generator are found to be much closer to those of the proposed emulator as compared to those of the conventional emulator. The experimental waveforms of the two emulators are observed to be similar to the simulated ones. © 2020 IEEE.

Item Type:	Conference Paper
Publication:	2020 IEEE International Conference on Power Systems Technology, POWERCON 2020
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	cited By 0; Conference of 2020 IEEE International Conference on Power Systems Technology, POWERCON 2020 ; Conference Date: 14 September 2020 Through 16 September 2020; Conference Code:164640
Keywords:	Stators, Conventional methods; Fundamental frequencies; Low order harmonics; Positive-sequence components; Synchronous machine; Synchronous machine models; Terminal voltages; Voltage and current waveforms, Synchronous generators
Department/Centre:	Division of Electrical Sciences > Electrical Engineering
Date Deposited:	04 Jan 2021 09:02
Last Modified:	04 Jan 2021 09:02
URI:	http://eprints.iisc.ac.in/id/eprint/67203

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