In traction applications a fast torque control is required; it can be obtained by using vector control strategies; i.e. field orientation schemes (FO) and direct self-control (DSC). The implementation of the proposed control schemes is no longer a problem because low cost microcontrollers are available along with voltage source inverters. The aim of this paper is to analyse the behaviour of the controlled drives in the case of a conventional induction motor. The amplitude of the pulsating component of torque as well as the machine current distorsion are monitored and compared in the case of the two different control strategies. Simulations were carried out considering the induction motor used in the ETR460 (a high speed locomotive of Italian railways) with a rated power of 550 kW. All experimental results are verified with the help of a developed user-friendly package for the analysis of controlled electrical machines linkable with Simulink, the dynamic simulator by the Mathworks.
Vector control strategies for traction applications
BALESTRINO, ALDO;BRUNO, OTTORINO;LANDI, ALBERTO;
1997-01-01
Abstract
In traction applications a fast torque control is required; it can be obtained by using vector control strategies; i.e. field orientation schemes (FO) and direct self-control (DSC). The implementation of the proposed control schemes is no longer a problem because low cost microcontrollers are available along with voltage source inverters. The aim of this paper is to analyse the behaviour of the controlled drives in the case of a conventional induction motor. The amplitude of the pulsating component of torque as well as the machine current distorsion are monitored and compared in the case of the two different control strategies. Simulations were carried out considering the induction motor used in the ETR460 (a high speed locomotive of Italian railways) with a rated power of 550 kW. All experimental results are verified with the help of a developed user-friendly package for the analysis of controlled electrical machines linkable with Simulink, the dynamic simulator by the Mathworks.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
