EPE Association: EPE 2020 - DS3g-2: Electrical Machines-2

EPE 2020 - DS3g-2: Electrical Machines-2
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2020 ECCE Europe - Conference > EPE 2020 - Topic 04: Electrical Machines and Drive Systems > EPE 2020 - DS3g-2: Electrical Machines-2

   [return to parent folder]

   An Efficiency Analysis of a Ferrite Magnet assisted Synchronous Reluctance Machine for Low Power Drives including Flux Weakening
By Matthias HOFER [View]
[Download]

Abstract: In this paper a ferrite magnet assisted synchronous reluctance machine for a low power industrial spooling drive with a constant power characteristic at high rotational speeds is discussed. To combine an efficient machine topology at rather low product cost the permanent magnet assisted synchronous reluctance machine is proposed. Different rotor topologies are investigated and compared by simulation. Finally a three layer magnet topology was chosen, constructed and experimentally tested. The experimental results confirm a high torque and power capability even in the flux weakening operation above the nominal speed. Further, this machine type shows a significant high efficiency in a wide operation range.

   Analytical harmonic current model for a Permanent Magnet Assisted Synchronous Reluctance Motor (PMa-SynRM) fed by PWM inverter
By Jessica NEUMANN [View]
[Download]

Abstract: This paper presents an analytical model to compute the current harmonics of a PMa-SynRM fed by PWM inverter. Voltage signal expressions are deduced and the machine parameters are provided by an analytical nonlinear model of the machine. The current signal was compared with a nonlinear Simulink model, giving satisfying results.

   Enhanced Flux Control Including a Closed Loop Voltage Controller to Optimize the Voltage Usage and the Torque Computation for a 48V IPMSM
By Felix BERTELE [View]
[Download]

Abstract: For an efficient operation of a low voltage PMSM an optimized voltage usage is very important. Because of the relation between the low voltage and the high currents in this type of machine, a large voltage reserve is needed to compensate the influence of parameter mismatches and to guarantee a stable current control. As the power is limited by the low voltage in this type of hybrid drive systems, optimizing the voltage usage is also required to maximize the power and the torque availability. This paper describes a closed loop flux control to maximize the voltage usage. The controller feedback is used to estimate and maximize the available torque for each operating point.

   Predictive torque control of induction machine with an adaptive observer for trajectory planning of servo press
By Qi LI [View]
[Download]

Abstract: In order to improve the accuracy of trajectory planning, servo-drive of induction machine wasemployed in press. The crank mechanism is widely used as the critical transmission of the press.Dynamic model of press was established through Lagrange Equation and computed torque controlmethod was chosen to solve the nonlinearity problem. To delivering better dynamic performance andreduce the cost of encoder, a predictive torque control of induction machine with an adaptive observeris also proposed in this scheme. The simulation shows the new algorithm can help servo-drive track the trajectory of crank and the performance of new strategy is better than traditional method. It can extent the new possible solution of trajectory for nonlinearity.

EPE 2020 - DS3g-2: Electrical Machines-2
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2020 ECCE Europe - Conference > EPE 2020 - Topic 04: Electrical Machines and Drive Systems > EPE 2020 - DS3g-2: Electrical Machines-2
	[return to parent folder]

	An Efficiency Analysis of a Ferrite Magnet assisted Synchronous Reluctance Machine for Low Power Drives including Flux Weakening By Matthias HOFER	[View] [Download]
Abstract: In this paper a ferrite magnet assisted synchronous reluctance machine for a low power industrial spooling drive with a constant power characteristic at high rotational speeds is discussed. To combine an efficient machine topology at rather low product cost the permanent magnet assisted synchronous reluctance machine is proposed. Different rotor topologies are investigated and compared by simulation. Finally a three layer magnet topology was chosen, constructed and experimentally tested. The experimental results confirm a high torque and power capability even in the flux weakening operation above the nominal speed. Further, this machine type shows a significant high efficiency in a wide operation range.

	Analytical harmonic current model for a Permanent Magnet Assisted Synchronous Reluctance Motor (PMa-SynRM) fed by PWM inverter By Jessica NEUMANN	[View] [Download]
Abstract: This paper presents an analytical model to compute the current harmonics of a PMa-SynRM fed by PWM inverter. Voltage signal expressions are deduced and the machine parameters are provided by an analytical nonlinear model of the machine. The current signal was compared with a nonlinear Simulink model, giving satisfying results.

	Enhanced Flux Control Including a Closed Loop Voltage Controller to Optimize the Voltage Usage and the Torque Computation for a 48V IPMSM By Felix BERTELE	[View] [Download]
Abstract: For an efficient operation of a low voltage PMSM an optimized voltage usage is very important. Because of the relation between the low voltage and the high currents in this type of machine, a large voltage reserve is needed to compensate the influence of parameter mismatches and to guarantee a stable current control. As the power is limited by the low voltage in this type of hybrid drive systems, optimizing the voltage usage is also required to maximize the power and the torque availability. This paper describes a closed loop flux control to maximize the voltage usage. The controller feedback is used to estimate and maximize the available torque for each operating point.

	Predictive torque control of induction machine with an adaptive observer for trajectory planning of servo press By Qi LI	[View] [Download]
Abstract: In order to improve the accuracy of trajectory planning, servo-drive of induction machine wasemployed in press. The crank mechanism is widely used as the critical transmission of the press.Dynamic model of press was established through Lagrange Equation and computed torque controlmethod was chosen to solve the nonlinearity problem. To delivering better dynamic performance andreduce the cost of encoder, a predictive torque control of induction machine with an adaptive observeris also proposed in this scheme. The simulation shows the new algorithm can help servo-drive track the trajectory of crank and the performance of new strategy is better than traditional method. It can extent the new possible solution of trajectory for nonlinearity.