EPE Association: EPE 2009 - subtopic 09-1 - LS: 'Motion Control, Modelling and Robotics'

EPE 2009 - subtopic 09-1 - LS: 'Motion Control, Modelling and Robotics'
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2009 - Conference > EPE 2009 - Topic 09: 'Motion Control and Robotics, Communication in Drive Systems' > EPE 2009 - subtopic 09-1 - LS: 'Motion Control, Modelling and Robotics'

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   Accurate Modelling of Traction Inverter Losses for Efficiency Calculation in Parallel Hybrid Electric Vehicles
By Mohammad Reza NIKZAD, Ahmad RADAN [View]
[Download]

Abstract: In this paper a precise and simple methodology will be introduced for modeling and calculating the Voltage Source Inverter (VSI) losses in Hybrid Electric Vehicles (HEV) application. The noteworthy traction inverter losses, consisting switching and conduction losses of diodes and IGBTs, are important for evaluating the overall efficiency and obtaining the optimized value of its dc-link voltage as well. For this purpose, the effects of different battery voltage levels on the inverter losses are examined.

   Automatic global modelling of static converters for power electronics systems : taking into account of causality aspects for model coupling
By asma MERDASSI, Laurent GERBAUD, Seddik BACHA [View]
[Download]

Abstract: The paper deals with the automatic generation of global model of static converters without the description of their environment. The considered models are average and exact models (i.e. with ideal switches). These models are obtained by using a software tool named AMG (for Average Model Generator) with a priori on the control mode and behaviour of the static converter. In this paper, an extension of this tool is developed and allows to gather together the generated models with the models of their environment without considering the equations of the loads and sources of the static converter. It proposes to use the causality between models, then non causual modelling languages as Modelica or VHDL-AMS. This is useful for loads such electrical machines described by a Park model. The generated models are in text file, VHDL-AMS and Modelica forms. This modelling method has been applied to several applications, among them a three-phase voltage inverter coupled with a three-phase machine simply modelled by a three-phase resistor-inductor load, presented in the paper to illustrate the approach. This generated model has been implemented in Matlab/Simulink Â® (C-Sfunction), VHDL-AMS

   Energy-based modelling and simulation of a series Hybrid Electric Vehicle Propulsion System
By RaÃºl S. MUÃ‘OZ-AGUILAR, Arnau DÃ’RIA-CEREZO, Paul PULESTON [View]
[Download]

Abstract: This paper presents an energy-based model of a series hybrid electric vehicle. The proposed propulsion system has a new configuration using a wound-rotor synchronous generator (WRSM) and a doubly-fed induction machine (DFIM). From the classic dq dynamical equations of the WRSM and DFIM the port-controlled Hamiltonian models of each machine is described. One of the abilities of the port-based models is that the complete model is easy to obtain by means of interconnection rules. Following this, the Hamiltonian model of the whole system is obtained. Similarly, the bond graph approach allows to build a complex model by interconnecting several subsystems. This paper also contains bond graph models of the machines and the propulsion system. Numerical simulations are also presented in order to validate the proposed models.

EPE 2009 - subtopic 09-1 - LS: 'Motion Control, Modelling and Robotics'
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2009 - Conference > EPE 2009 - Topic 09: 'Motion Control and Robotics, Communication in Drive Systems' > EPE 2009 - subtopic 09-1 - LS: 'Motion Control, Modelling and Robotics'
	[return to parent folder]

	Accurate Modelling of Traction Inverter Losses for Efficiency Calculation in Parallel Hybrid Electric Vehicles By Mohammad Reza NIKZAD, Ahmad RADAN	[View] [Download]
Abstract: In this paper a precise and simple methodology will be introduced for modeling and calculating the Voltage Source Inverter (VSI) losses in Hybrid Electric Vehicles (HEV) application. The noteworthy traction inverter losses, consisting switching and conduction losses of diodes and IGBTs, are important for evaluating the overall efficiency and obtaining the optimized value of its dc-link voltage as well. For this purpose, the effects of different battery voltage levels on the inverter losses are examined.

	Automatic global modelling of static converters for power electronics systems : taking into account of causality aspects for model coupling By asma MERDASSI, Laurent GERBAUD, Seddik BACHA	[View] [Download]
Abstract: The paper deals with the automatic generation of global model of static converters without the description of their environment. The considered models are average and exact models (i.e. with ideal switches). These models are obtained by using a software tool named AMG (for Average Model Generator) with a priori on the control mode and behaviour of the static converter. In this paper, an extension of this tool is developed and allows to gather together the generated models with the models of their environment without considering the equations of the loads and sources of the static converter. It proposes to use the causality between models, then non causual modelling languages as Modelica or VHDL-AMS. This is useful for loads such electrical machines described by a Park model. The generated models are in text file, VHDL-AMS and Modelica forms. This modelling method has been applied to several applications, among them a three-phase voltage inverter coupled with a three-phase machine simply modelled by a three-phase resistor-inductor load, presented in the paper to illustrate the approach. This generated model has been implemented in Matlab/Simulink Â® (C-Sfunction), VHDL-AMS

	Energy-based modelling and simulation of a series Hybrid Electric Vehicle Propulsion System By RaÃºl S. MUÃ‘OZ-AGUILAR, Arnau DÃ’RIA-CEREZO, Paul PULESTON	[View] [Download]
Abstract: This paper presents an energy-based model of a series hybrid electric vehicle. The proposed propulsion system has a new configuration using a wound-rotor synchronous generator (WRSM) and a doubly-fed induction machine (DFIM). From the classic dq dynamical equations of the WRSM and DFIM the port-controlled Hamiltonian models of each machine is described. One of the abilities of the port-based models is that the complete model is easy to obtain by means of interconnection rules. Following this, the Hamiltonian model of the whole system is obtained. Similarly, the bond graph approach allows to build a complex model by interconnecting several subsystems. This paper also contains bond graph models of the machines and the propulsion system. Numerical simulations are also presented in order to validate the proposed models.