EPE Association: EPE 2021 - Machine and Actuators

EPE 2021 - Machine and Actuators
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2021 ECCE Europe - Conference > EPE 2021 - Topic 05: Renewable Energy Power Systems > EPE 2021 - Machine and Actuators

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   Cooling limits of passively cooled integrated motor drives
By Thilo BRINGEZU [View]
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Abstract: In this paper, the achievable cooling limits of passively cooled integrated motor drives are investigated. For the concept of a drive-integrated end cap with cooling fins a thermal model is derived and used to calculate the cooling system performance index, resulting in a range of CSPI = 0.67..1.8 W/K/L which is primarily suitable for high-torque, low-speed motors.

   Deadbeat Flux Vector Control with Continuous Transition from Linear to Overmodulation including Six-Step Operation Considering the Voltage and Current Limits by
By Hadi EL KHATIB [View]
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Abstract: Six-step operation of interior permanent magnet synchronous machines (IPMSMs) has many advantages such as the full utilization of the DC-link voltage and the minimization of the switching losses. Deadbeat Flux Control (DBFC) is a control strategy designed to achieve overmodulation and six-step operation with competent dynamic performance. This paper presents an upgraded implementation of the DBFC controller. One unique control law can operate in the entire torque-speed plane with a simple methodology for continuous and smooth transition between the four different operating regions (i.e., linear, overmodulation I, overmodulation II, and six-step), and under voltage and current limitations. Combining multiple controllers and switching between different control laws is completely avoided. This paper presents an approach for closed-loop torque regulation that has high dynamic performance, high accuracy, and is robust against parameter variations. The proposed controller is evaluated in simulation and experimentally. It is implemented on an automotive microcontroller for a 300 kW IPMSM traction drive.

   Verification of the Analytical Torque Calculation and Active Weight Optimizationfor a Scalable Axial Flux Motor
By Sebastian BERDNL [View]
[Download]

Abstract: A novel motor concept of a scalable axial flux motor with U-core plates (AxMDM) and a GRP (glass fiber reinforced plastic) disk rotor was developed. In this paper, the verification of the analytically calculated torque for the AxMDM is shown. It is also shown that a miniaturization of the U-core lamination improves the ratio of torque per active weight.

EPE 2021 - Machine and Actuators
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2021 ECCE Europe - Conference > EPE 2021 - Topic 05: Renewable Energy Power Systems > EPE 2021 - Machine and Actuators
	[return to parent folder]

	Cooling limits of passively cooled integrated motor drives By Thilo BRINGEZU	[View] [Download]
Abstract: In this paper, the achievable cooling limits of passively cooled integrated motor drives are investigated. For the concept of a drive-integrated end cap with cooling fins a thermal model is derived and used to calculate the cooling system performance index, resulting in a range of CSPI = 0.67..1.8 W/K/L which is primarily suitable for high-torque, low-speed motors.

	Deadbeat Flux Vector Control with Continuous Transition from Linear to Overmodulation including Six-Step Operation Considering the Voltage and Current Limits by By Hadi EL KHATIB	[View] [Download]
Abstract: Six-step operation of interior permanent magnet synchronous machines (IPMSMs) has many advantages such as the full utilization of the DC-link voltage and the minimization of the switching losses. Deadbeat Flux Control (DBFC) is a control strategy designed to achieve overmodulation and six-step operation with competent dynamic performance. This paper presents an upgraded implementation of the DBFC controller. One unique control law can operate in the entire torque-speed plane with a simple methodology for continuous and smooth transition between the four different operating regions (i.e., linear, overmodulation I, overmodulation II, and six-step), and under voltage and current limitations. Combining multiple controllers and switching between different control laws is completely avoided. This paper presents an approach for closed-loop torque regulation that has high dynamic performance, high accuracy, and is robust against parameter variations. The proposed controller is evaluated in simulation and experimentally. It is implemented on an automotive microcontroller for a 300 kW IPMSM traction drive.

	Verification of the Analytical Torque Calculation and Active Weight Optimizationfor a Scalable Axial Flux Motor By Sebastian BERDNL	[View] [Download]
Abstract: A novel motor concept of a scalable axial flux motor with U-core plates (AxMDM) and a GRP (glass fiber reinforced plastic) disk rotor was developed. In this paper, the verification of the analytically calculated torque for the AxMDM is shown. It is also shown that a miniaturization of the U-core lamination improves the ratio of torque per active weight.