Un-Controlled Generation Modelling and Analysis for Hybrid Vehicles

Paper #:
  • 2017-26-0108

Published:
  • 2017-01-10
DOI:
  • 10.4271/2017-26-0108
Citation:
Hashim, M., "Un-Controlled Generation Modelling and Analysis for Hybrid Vehicles," SAE Technical Paper 2017-26-0108, 2017, doi:10.4271/2017-26-0108.
Author(s):
Affiliated:
Pages:
7
Abstract:
Interior permanent magnet machines are being widely used in hybrid vehicles owing to their compact size and high power density. Vehicle level application requires the motor to operate at high speed beyond the base speed of the motor. This is accomplished through flux weakening control. Nonfunctioning of inverter switches and/or gate driver circuit during flux weakening could give rise to a potential fault scenario called Un-Controlled Generation (UCG). This paper gives a detailed background of UCG and its impact on the high voltage and propulsion systems. In further sections the details related to modelling and analysis of UCG will be discussed. Finally, the paper will conclude with simulation results and comparison of the results with motor dynamometer test data.
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