EPE Association: EPE 2013 - LS5e: Estimation Techniques and Systems Diagnoses

EPE 2013 - LS5e: Estimation Techniques and Systems Diagnoses
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2013 ECCE Europe - Conference > EPE 2013 - Topic 08: Measurements and sensors > EPE 2013 - LS5e: Estimation Techniques and Systems Diagnoses

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   Modeling of power converters for debugging digital controllers through FPGA emulation
By Fernando LOPEZ-COLINO, Alberto SANCHEZ, Angel DE CASTRO, Javier GARRIDO [View]
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Abstract: Debugging a digital controller for power converters can be a lengthy process due to the long time required in mixed-signal simulations. This paper focuses on the design of a power converter model for debugging digital controllers in closed loop. The testing may be performed by means of simulation or emulation.This paper shows the results of simulating and emulating the power converter using different data representations. Experiments will show that through a good selection of data and emulation, testing can be speeded up over 28,000 times.

   Self-sensing magnetic bearings using multiple sampling of currents alone
By Jinou WANG, Andreas BINDER [View]
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Abstract: This paper presents a new technique to estimate the rotor position for self-sensing magnetic bearings. The current slope, which is caused by the switching voltage of the PWM amplifier, is used to estimate the rotor position. One highlight of the proposed technique is to calculate the current slope from more than two samples of currents within one PWM cycle. Thus, using multiple sampling of coil currents alone, no additional hardware than that for a current control is needed for the position estimation. The position control of a single-axis magnetic bearing, using the proposed technique, was successfully implemented.

   Synchronization of grid-connected converters for single-phase systems
By Tomas KOMRSKA, Dusan JANIK, Zdenek PEROUTKA [View]
[Download]

Abstract: Single-phase grid-connected converters need to be synchronized with voltage/current fundamental component. This paper investigates and deeply evaluates four real-time estimators based on DFT, adaptive filter, least squares and SOGI, designed for high-quality 1st harmonic extraction. Presented theoretical results are confirmed by extensive experimental research made on developed converter prototypes.

EPE 2013 - LS5e: Estimation Techniques and Systems Diagnoses
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2013 ECCE Europe - Conference > EPE 2013 - Topic 08: Measurements and sensors > EPE 2013 - LS5e: Estimation Techniques and Systems Diagnoses
	[return to parent folder]

	Modeling of power converters for debugging digital controllers through FPGA emulation By Fernando LOPEZ-COLINO, Alberto SANCHEZ, Angel DE CASTRO, Javier GARRIDO	[View] [Download]
Abstract: Debugging a digital controller for power converters can be a lengthy process due to the long time required in mixed-signal simulations. This paper focuses on the design of a power converter model for debugging digital controllers in closed loop. The testing may be performed by means of simulation or emulation.This paper shows the results of simulating and emulating the power converter using different data representations. Experiments will show that through a good selection of data and emulation, testing can be speeded up over 28,000 times.

	Self-sensing magnetic bearings using multiple sampling of currents alone By Jinou WANG, Andreas BINDER	[View] [Download]
Abstract: This paper presents a new technique to estimate the rotor position for self-sensing magnetic bearings. The current slope, which is caused by the switching voltage of the PWM amplifier, is used to estimate the rotor position. One highlight of the proposed technique is to calculate the current slope from more than two samples of currents within one PWM cycle. Thus, using multiple sampling of coil currents alone, no additional hardware than that for a current control is needed for the position estimation. The position control of a single-axis magnetic bearing, using the proposed technique, was successfully implemented.

	Synchronization of grid-connected converters for single-phase systems By Tomas KOMRSKA, Dusan JANIK, Zdenek PEROUTKA	[View] [Download]
Abstract: Single-phase grid-connected converters need to be synchronized with voltage/current fundamental component. This paper investigates and deeply evaluates four real-time estimators based on DFT, adaptive filter, least squares and SOGI, designed for high-quality 1st harmonic extraction. Presented theoretical results are confirmed by extensive experimental research made on developed converter prototypes.