1. Determination of excitation capacitance of a three-phase self-excited induction generator
- Author
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Mohammed H. Haque, Ali I. Maswood, 2012 IEEE Power and Energy Society General Meeting San Diego, California 22-26 July 2012, Haque, Mohammed Hamidul, Maswood, A.I, School of Electrical and Electronic Engineering, and IEEE Power & Energy Society General Meeting (2012 : San Diego, US)
- Subjects
Engineering ,business.industry ,Differential equation ,self-excited induction generator (SEIG) ,Induction generator ,Reactance ,stand-alone operation ,induction generator ,Resonance (particle physics) ,Generator (circuit theory) ,Three-phase ,Hardware_GENERAL ,Control theory ,Engineering::Electrical and electronic engineering [DRNTU] ,Electronic engineering ,Time domain ,excitation capacitance ,wind energy conversion ,business ,Voltage - Abstract
This paper proposes a simple method of determining the size of excitation capacitance required to buildup a predetermined no load voltage for off-grid operation of a three-phase self-excited induction generator. The method is based on the combination of the principle of L-C resonance and non-linear magnetization characteristic of the generator. For given values of voltage and speed, the magnetizing reactance of the generator is first determined from the solution of a polynomial. The size of the excitation capacitance is then obtained from the principle of L-C resonance. The effectiveness of the proposed method is checked through a more sophisticated generator model where the electrical characteristics are represented by four first-order differential equations. The voltage build-up process in time domain is also investigated through the above model. The results obtained by the proposed method are also verified through an experimental setup consisting of a 1.5-kW induction machine and are found to be in very good agreement. Refereed/Peer-reviewed
- Published
- 2012