EPE Association: EPE 2013 - LS8f: Electric Propulsion Systems for Electrified Vehicles

EPE 2013 - LS8f: Electric Propulsion Systems for Electrified Vehicles
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2013 ECCE Europe - Conference > EPE 2013 - Topic 18: Electrical systems in road vehicles > EPE 2013 - LS8f: Electric Propulsion Systems for Electrified Vehicles

   [return to parent folder]

   Control, Analysis and Comparison of Different Control Strategies of Electric Motor for Electric Vehicles Applications
By Omar HEGAZY, Ricardo BARRERO, Joeri VAN MIERLO, Philippe LATAIRE, Thierry COOSEMANS, Mohamed EL BAGHDADI [View]
[Download]

Abstract: Electric motors are key components in all electric drivetrains, particularly battery electric vehicles (BEVs). Consequently, the control strategies of those electric motors play an important role in the development of high performance BEV powertrains. Therefore, this article presents the control design, analysis and comparison of different motor control strategies. In this paper, the most popular control strategies (such as Indirect Field-Oriented Control (IFOC), Hybrid IFOC and PWM voltage scheme, IFOC based on SVPWM, Direct Torque Control (DTC), and DTC based on SVPWM) are designed and analyzed in detail by using Matlab/Simulink. Furthermore, in this research, IFOC based on PWM voltage and PSO is designed to improve the motor efficiency especially at low load conditions. It is shown that the PSO algorithm has the straightforward goal of minimizing the motor losses at any operating condition by selecting the optimal flux. The simulation and experimental results are provided.

   Dynamics of four-wheel-drive electric vehicle during machine fault condition
By Peter NUSSBAUMER, Christoph MACEK, Manfred PLOECHL, Thomas WOLBANK [View]
[Download]

Abstract: The need of carbon dioxide reduction led to increasing interest in the electric car. The shift from conventional to electric cars by simply replacing the internal combustion engine (ICE) with an electric machine might not be the best solution. Thus, new system designs like four-in-wheel drives are evolving. Although generally highly reliable, a failure in the electric machine can lead to dangerous driving situations. Depending on the type of the occurring fault different influence on for example the machine torque can be investigated. Examples for these effects are constant braking torque, torque ripple or blocking of the rotor. This results in possible reduction of driving stability. The road condition and current driving behavior (cornering, acceleration, etc.) influences the driving stability during fault condition. The effects of fault conditions on vehicle dynamics are thus investigated in the publication at hand.

   Loss Minimization of Electric Drive Systems Using a Z-Source Inverter in Automotive Applications
By Stephan TENNER, Stephan GUENTHER, Wilfried HOFMANN [View]
[Download]

Abstract: In automotive applications, voltage source inverters generally feed the traction motor from a battery. By implementing a Z-Source inverter in drive systems, the DC-link voltage is adjustable. This paper discusses the benefits of an adjustable DC-link voltage as a degree of freedom for a loss minimized control of electric drives.

EPE 2013 - LS8f: Electric Propulsion Systems for Electrified Vehicles
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2013 ECCE Europe - Conference > EPE 2013 - Topic 18: Electrical systems in road vehicles > EPE 2013 - LS8f: Electric Propulsion Systems for Electrified Vehicles
	[return to parent folder]

	Control, Analysis and Comparison of Different Control Strategies of Electric Motor for Electric Vehicles Applications By Omar HEGAZY, Ricardo BARRERO, Joeri VAN MIERLO, Philippe LATAIRE, Thierry COOSEMANS, Mohamed EL BAGHDADI	[View] [Download]
Abstract: Electric motors are key components in all electric drivetrains, particularly battery electric vehicles (BEVs). Consequently, the control strategies of those electric motors play an important role in the development of high performance BEV powertrains. Therefore, this article presents the control design, analysis and comparison of different motor control strategies. In this paper, the most popular control strategies (such as Indirect Field-Oriented Control (IFOC), Hybrid IFOC and PWM voltage scheme, IFOC based on SVPWM, Direct Torque Control (DTC), and DTC based on SVPWM) are designed and analyzed in detail by using Matlab/Simulink. Furthermore, in this research, IFOC based on PWM voltage and PSO is designed to improve the motor efficiency especially at low load conditions. It is shown that the PSO algorithm has the straightforward goal of minimizing the motor losses at any operating condition by selecting the optimal flux. The simulation and experimental results are provided.

	Dynamics of four-wheel-drive electric vehicle during machine fault condition By Peter NUSSBAUMER, Christoph MACEK, Manfred PLOECHL, Thomas WOLBANK	[View] [Download]
Abstract: The need of carbon dioxide reduction led to increasing interest in the electric car. The shift from conventional to electric cars by simply replacing the internal combustion engine (ICE) with an electric machine might not be the best solution. Thus, new system designs like four-in-wheel drives are evolving. Although generally highly reliable, a failure in the electric machine can lead to dangerous driving situations. Depending on the type of the occurring fault different influence on for example the machine torque can be investigated. Examples for these effects are constant braking torque, torque ripple or blocking of the rotor. This results in possible reduction of driving stability. The road condition and current driving behavior (cornering, acceleration, etc.) influences the driving stability during fault condition. The effects of fault conditions on vehicle dynamics are thus investigated in the publication at hand.

	Loss Minimization of Electric Drive Systems Using a Z-Source Inverter in Automotive Applications By Stephan TENNER, Stephan GUENTHER, Wilfried HOFMANN	[View] [Download]
Abstract: In automotive applications, voltage source inverters generally feed the traction motor from a battery. By implementing a Z-Source inverter in drive systems, the DC-link voltage is adjustable. This paper discusses the benefits of an adjustable DC-link voltage as a degree of freedom for a loss minimized control of electric drives.