, Volume 80, Issue 12, pp 671-679
Date: 12 Mar 2010

Permanent-magnet synchronous generator-active rectifier system: Mathematical model

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A mathematical model is suggested for analyzing the power characteristics of an alternating current generating system of the variable speed-constant frequency type. The system consists of a permanent-magnet synchronous generator, an active rectifier, and a voltage-source inverter. The three-phase active rectifier and inverter are controlled by high-frequency pulse-width modulation (PWM). The algorithms for controlling the active rectifier are discussed; the power characteristics are given as an example for the case of applying the model to a powerful generation system with a variable rotation speed of the synchronous generator shaft.