Integrated Starter Generator for 42-V Powernet Using Induction Machine and Direct Torque Control Technique

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Integrated Starter Generator for 42-V Powernet Using Induction Machine and Direct Torque Control Technique

Authors
Publisher
IEEE
Keywords
  • Electrical Engineering

Abstract

This paper describes an integrated starter generator (ISG) for automobile applications with 42-V powernet. This system is based on an induction machine which is directly mounted on the engine crankshaft and controlled using the technique of direct torque control (DTC). The suitability of the technique for ISG application is explained. The control structure of DTC for ISG application is described. Detailed experimental results from a 1.4-1 diesel engine are presented demonstrating the performance of the system during cranking as well as generation. The ISG also incorporates the feature of "on the fly start" during generation mode. Details of a low voltage high current power converter developed for this application are also given.

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