EPE Association: EPE 2022 - LS3d: Converter Modelling and Low-level Control, including Gate-Drives

EPE 2022 - LS3d: Converter Modelling and Low-level Control, including Gate-Drives
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2022 ECCE Europe - Conference > EPE 2022 - Topic 03: Measurement and Control > EPE 2022 - LS3d: Converter Modelling and Low-level Control, including Gate-Drives

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   Desaturated turn-off of low-saturation IGBTs with clamping method to reduce turn-off energy losses
By Vishwas ACHARYA NAYAMPALLI [View]
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Abstract: Investigations into the desaturated turn-off of low-saturation IGBTs with a novel hardware-based clamping approach are presented in this paper. Effects of the clamping voltage level and duration of desaturation on the reduction in turn-off energy losses are investigated. Turn-off measurement results with experimental low-saturation IGBT chips with the implemented clamping method demonstrate significant reduction in turn-off losses relative to the intrinsic turn-off of the device. Furthermore, TCAD based turn-off simulations with the clamping approach applied to different IGBT device models are presented with the objective of determining the potential of this method in reducing turn-off losses, as well as to obtain an insight into the necessary device on-state carrier concentration profile to obtain large reductions in turn-off energy losses for the advantageous application of this turn-off method.

   Fast And Accurate Soft-Switching And Hard-Switching Losses Estimation For Power Converter, Application To The Dual Active Bridge Converter (DAB)
By François BOIGE [View]
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Abstract: This paper presents an integrated method and workflow to estimate Dual Active Bridge (DAB) DC/DC converter semiconductor loss in losses both in soft-switching including Zero-Voltage Switching (ZVS), Zero-Current Switching (ZCS) and hard-switching. The method uses soft-switching and hard-switching energy look-up table with a frequential solver to estimates DAB loss. In case, the switching energies are not available, a virtual double pulse simulation is performed based on the datasheet characteristic. The comparison with the literature displays a very fast computation time with a reasonable trade-off in accuracy.

   Modeling of an Interleaved DC-DC Boost Converter for a Direct Model Predictive Control Strategy
By Thomas EFFENBERGER [View]
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Abstract: This paper presents a model predictive control (MPC) algorithm for interleaved dc-dc boost converters with coupled inductors. The prediction model covers the switching nature of the converter and all possible operating states. The MPC algorithm is realized in MATLAB and designed such to facilitate its real-time implementation on a field programmable gate array (FPGA) using the MATLAB HDL Coder. Open-loop measurement results demonstrate the accuracy of the system model, while the effectiveness of the controller is validated in simulation.

EPE 2022 - LS3d: Converter Modelling and Low-level Control, including Gate-Drives
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2022 ECCE Europe - Conference > EPE 2022 - Topic 03: Measurement and Control > EPE 2022 - LS3d: Converter Modelling and Low-level Control, including Gate-Drives
	[return to parent folder]

	Desaturated turn-off of low-saturation IGBTs with clamping method to reduce turn-off energy losses By Vishwas ACHARYA NAYAMPALLI	[View] [Download]
Abstract: Investigations into the desaturated turn-off of low-saturation IGBTs with a novel hardware-based clamping approach are presented in this paper. Effects of the clamping voltage level and duration of desaturation on the reduction in turn-off energy losses are investigated. Turn-off measurement results with experimental low-saturation IGBT chips with the implemented clamping method demonstrate significant reduction in turn-off losses relative to the intrinsic turn-off of the device. Furthermore, TCAD based turn-off simulations with the clamping approach applied to different IGBT device models are presented with the objective of determining the potential of this method in reducing turn-off losses, as well as to obtain an insight into the necessary device on-state carrier concentration profile to obtain large reductions in turn-off energy losses for the advantageous application of this turn-off method.

	Fast And Accurate Soft-Switching And Hard-Switching Losses Estimation For Power Converter, Application To The Dual Active Bridge Converter (DAB) By François BOIGE	[View] [Download]
Abstract: This paper presents an integrated method and workflow to estimate Dual Active Bridge (DAB) DC/DC converter semiconductor loss in losses both in soft-switching including Zero-Voltage Switching (ZVS), Zero-Current Switching (ZCS) and hard-switching. The method uses soft-switching and hard-switching energy look-up table with a frequential solver to estimates DAB loss. In case, the switching energies are not available, a virtual double pulse simulation is performed based on the datasheet characteristic. The comparison with the literature displays a very fast computation time with a reasonable trade-off in accuracy.

	Modeling of an Interleaved DC-DC Boost Converter for a Direct Model Predictive Control Strategy By Thomas EFFENBERGER	[View] [Download]
Abstract: This paper presents a model predictive control (MPC) algorithm for interleaved dc-dc boost converters with coupled inductors. The prediction model covers the switching nature of the converter and all possible operating states. The MPC algorithm is realized in MATLAB and designed such to facilitate its real-time implementation on a field programmable gate array (FPGA) using the MATLAB HDL Coder. Open-loop measurement results demonstrate the accuracy of the system model, while the effectiveness of the controller is validated in simulation.