Mathe, Laszlo2; Kopacz, Csaba1; Bede, Lorand3; Rasmussen, Peter Omand4
1 Department of Energy Technology, The Faculty of Engineering and Science, Aalborg University, VBN2 Power Electronic Systems, The Faculty of Engineering and Science, Aalborg University, VBN3 The Faculty of Engineering and Science, Aalborg University, VBN4 Electrical Machines, The Faculty of Engineering and Science, Aalborg University, VBN
The reliability and high efficiency of the power electronic drives used in electric vehicles is an essential requirement. To achieve high efficiency for the electrical drive system permanent magnet synchronous motors (PMSM) are employed. At high speed operation of the electric vehicles the electrical motors usually operate in the so called flux-weakening operation mode. When the control of the PMSM in fluxweakening operation mode is lost (due to untrustworthy position or current feedback signal) high voltage will appear in the DClink which can damage the power switches, the battery and the auxiliary circuits connected to the DC-link. A method, based on linear Kalman filter, to detect the feedback signal failure and to maintain the DC-link voltage in the normal range is presented in the paper. The proposed method is investigated through experimental test.
Electrical Systems for Aircraft, Railway, and Ship Propulsion, 2012
Main Research Area:
Electrical Systems for Aircraft, Railway and Ship Propulsion (esars)
International Conference on Electrical Systems for Aircraft, Railway and Ship Propulsion, 2012