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Analysis of squirrel-cage induction generator start-up supported by reactive power compensator

Analysis of squirrel-cage induction generator start-up supported by reactive power compensator The power electronic converter is used for the satisfaction of reactive power demand of induction generator, when grid-tied. This paper aims to present an application of STATCOM to reduce inrush transient caused by the connection of a squirrel-cage induction generator (SCIG) to the grid.Design/methodology/approachThe power generation system consists of an uncontrolled prime mover, a SCIG and a power electronic converter connected to the grid. The three-phase Neutral Point Clamped (NPC) converter works as a STATCOM to satisfy a reactive power demand of the generator. A control scheme of STATCOM uses the x-y reference frame rotating synchronously with grid voltage vector and the p-q instantaneous power theory to calculate q component of grid power.FindingsIt is shown that the parallel converter, which works as a reactive power compensator allows decreasing transients during a grid connection of the induction generator.Research limitations/implicationsTransients during a grid connection of the induction generator are only partially decreased.Practical implicationsIt is needed to compensate for the reactive power of a SCIG. The NPC converter works as a STATCOM. The converter partially reduces grid transients during generator connection. The laboratory tests are demonstrated by connection 7.5 kW induction generator to 8 kVA transformer.Originality/valueThe paper presents the mitigation of grid transients during connection of induction generator with the power electronic converter working as reactive power compensator. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering Emerald Publishing

Analysis of squirrel-cage induction generator start-up supported by reactive power compensator

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References (25)

Publisher
Emerald Publishing
Copyright
© Emerald Publishing Limited
ISSN
0332-1649
DOI
10.1108/compel-04-2019-0149
Publisher site
See Article on Publisher Site

Abstract

The power electronic converter is used for the satisfaction of reactive power demand of induction generator, when grid-tied. This paper aims to present an application of STATCOM to reduce inrush transient caused by the connection of a squirrel-cage induction generator (SCIG) to the grid.Design/methodology/approachThe power generation system consists of an uncontrolled prime mover, a SCIG and a power electronic converter connected to the grid. The three-phase Neutral Point Clamped (NPC) converter works as a STATCOM to satisfy a reactive power demand of the generator. A control scheme of STATCOM uses the x-y reference frame rotating synchronously with grid voltage vector and the p-q instantaneous power theory to calculate q component of grid power.FindingsIt is shown that the parallel converter, which works as a reactive power compensator allows decreasing transients during a grid connection of the induction generator.Research limitations/implicationsTransients during a grid connection of the induction generator are only partially decreased.Practical implicationsIt is needed to compensate for the reactive power of a SCIG. The NPC converter works as a STATCOM. The converter partially reduces grid transients during generator connection. The laboratory tests are demonstrated by connection 7.5 kW induction generator to 8 kVA transformer.Originality/valueThe paper presents the mitigation of grid transients during connection of induction generator with the power electronic converter working as reactive power compensator.

Journal

COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering – Emerald Publishing

Published: May 20, 2020

Keywords: Electrical machine; Electric converters

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