This paper deals with the control of a distributedcogeneration (micro-cogeneration) plant using a three-phaseinduction machine as electric generator. The plant can beoperated as a grid connected generator with load tracking or asisolated generator. In isolated operation the induction generatoris excited with a Current Controlled Voltage Source Inverter(CCVSI) with a suitable capacitive bank in the DC side. Duringgrid connected operation the same converter can be used forpower factor correction.The control scheme relies on air-gap flux field oriented controlbased on ADMC401 DSP. A better energy conversion quality isachieved thanks to the control of the exciting current component.This allows to obtain higher efficiency, higher control dynamicand a very robust behaviour in case of transient variation of theprime mover speed.
Field Oriented Control of Self-Excited Induction Generator for Distributed Cogeneration Plants / Bellini, Alberto; Franceschini, G.; Lorenzani, Emilio; Tassoni, C.; Tomaiuolo, M.. - ELETTRONICO. - 4:(2006), pp. 1738-1744. (Intervento presentato al convegno 2006 IEEE Industry Applications Conference - Forty-First IAS Annual Meeting tenutosi a Tampa, FL USA nel October 2006) [10.1109/IAS.2006.256770].
Field Oriented Control of Self-Excited Induction Generator for Distributed Cogeneration Plants
G. Franceschini;LORENZANI, EMILIO;
2006
Abstract
This paper deals with the control of a distributedcogeneration (micro-cogeneration) plant using a three-phaseinduction machine as electric generator. The plant can beoperated as a grid connected generator with load tracking or asisolated generator. In isolated operation the induction generatoris excited with a Current Controlled Voltage Source Inverter(CCVSI) with a suitable capacitive bank in the DC side. Duringgrid connected operation the same converter can be used forpower factor correction.The control scheme relies on air-gap flux field oriented controlbased on ADMC401 DSP. A better energy conversion quality isachieved thanks to the control of the exciting current component.This allows to obtain higher efficiency, higher control dynamicand a very robust behaviour in case of transient variation of theprime mover speed.
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