EPE Association: EPE 2020 - DS1d-1: Converter Modelling and Control-1

EPE 2020 - DS1d-1: Converter Modelling and Control-1
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2020 ECCE Europe - Conference > EPE 2020 - Topic 02: Power Converter Topologies and Design > EPE 2020 - DS1d-1: Converter Modelling and Control-1

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   Efficient and scalable power control in multi-port active-bridge converters
By Soleiman GALESHI MOOZIRAJI [View]
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Abstract: Application of multi-port active-bridge converters is constantly increasing due to their advantagessuch as bidirectional power transfer, high efficiency, and intrinsic electrical isolation. However,controlling the flow of power in these converters becomes more and more complex as the number ofports increases. Power flow in a multi-port active-bridge converter is controlled through phase shiftsand duty cycles. Analytical and Numerical methods, when suitable, often require huge amounts ofprocessing and memory resources for real-time control of the power in converters with three or moreports. This work proposes a method that is computational cost efficient and can be employed for realtime control purposes. It is scalable and can be applied to any number of ports. Simulation andexperimental results are provided to validate correct operation of the proposed method.

   Generalized Small-Signal Averaged Switch Model Analysis of a WBG-based Interleaved DC/DC Buck Converter for Electric Vehicle Drivetrains
By Sajib CHAKRABORTY [View]
[Download]

Abstract: To achieve a high-performance index and accurate controllability of power electronics converters (PEC), generalized small-signal analysis of the closed-loop PEC is a key aspect. This article presents a detailed generalized small-signal averaged switch model (GSSASM) of a Wide Bandgap (WBG)-based Interleaved Bidirectional Buck converter (IBBC) for electric vehicle drivetrains (EVs) to better understand the circuit characteristics, performance, stability and control. The derived GSSASM considers the power electronics device (switch & diode), the parasitic of inductor and source and equivalent series resistance of the capacitor, which results in attaining an accurate mathematical model close to real-time (RT) system. The proposed model can be utilized for any number of phases in IBBC. Furthermore, a field-programmable gate array-based (FPGA) programming board of dSPACE MicroLabBox, is used to implement a dual-loop discrete controller to formulate the proper compensators for achieving high dynamic performance in the RT prototype system. Finally, the performance of the proposed mathematical model in the transient and steady-state condition is verified with a 30-kW SiC-based IBBC laboratory prototype.

   Modelling and Analysis of Sensorless Current Sharing Approach
By Nikola BOSKOVIC [View]
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Abstract: Sensorless current sharing enables even distribution of the currents in multiphase converters. This paper presents a detailed model of a proposed balancing controller based on sensorless current sharing, and a converter consisting of paralleled branches. Additionally, stability and sensitivity analysis are included. The model is verified with experiments by balancing the branch currents at different load currents.

   Study of the Control of a New AC Voltage Stabilizer using linear controller with reference frame transformation.
By Bunthern KIM [View]
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Abstract: This paper explains the control of an automatic voltage regulator (AVR) based on series voltage compensation using a transformer and an AC-AC converter. The paper explores the control of the output AVR using linear controller using reference frame transformation technique. Simulation and experimental test has been made to verify the viability of using the proposed control technique for voltage regulation

EPE 2020 - DS1d-1: Converter Modelling and Control-1
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2020 ECCE Europe - Conference > EPE 2020 - Topic 02: Power Converter Topologies and Design > EPE 2020 - DS1d-1: Converter Modelling and Control-1
	[return to parent folder]

	Efficient and scalable power control in multi-port active-bridge converters By Soleiman GALESHI MOOZIRAJI	[View] [Download]
Abstract: Application of multi-port active-bridge converters is constantly increasing due to their advantagessuch as bidirectional power transfer, high efficiency, and intrinsic electrical isolation. However,controlling the flow of power in these converters becomes more and more complex as the number ofports increases. Power flow in a multi-port active-bridge converter is controlled through phase shiftsand duty cycles. Analytical and Numerical methods, when suitable, often require huge amounts ofprocessing and memory resources for real-time control of the power in converters with three or moreports. This work proposes a method that is computational cost efficient and can be employed for realtime control purposes. It is scalable and can be applied to any number of ports. Simulation andexperimental results are provided to validate correct operation of the proposed method.

	Generalized Small-Signal Averaged Switch Model Analysis of a WBG-based Interleaved DC/DC Buck Converter for Electric Vehicle Drivetrains By Sajib CHAKRABORTY	[View] [Download]
Abstract: To achieve a high-performance index and accurate controllability of power electronics converters (PEC), generalized small-signal analysis of the closed-loop PEC is a key aspect. This article presents a detailed generalized small-signal averaged switch model (GSSASM) of a Wide Bandgap (WBG)-based Interleaved Bidirectional Buck converter (IBBC) for electric vehicle drivetrains (EVs) to better understand the circuit characteristics, performance, stability and control. The derived GSSASM considers the power electronics device (switch & diode), the parasitic of inductor and source and equivalent series resistance of the capacitor, which results in attaining an accurate mathematical model close to real-time (RT) system. The proposed model can be utilized for any number of phases in IBBC. Furthermore, a field-programmable gate array-based (FPGA) programming board of dSPACE MicroLabBox, is used to implement a dual-loop discrete controller to formulate the proper compensators for achieving high dynamic performance in the RT prototype system. Finally, the performance of the proposed mathematical model in the transient and steady-state condition is verified with a 30-kW SiC-based IBBC laboratory prototype.

	Modelling and Analysis of Sensorless Current Sharing Approach By Nikola BOSKOVIC	[View] [Download]
Abstract: Sensorless current sharing enables even distribution of the currents in multiphase converters. This paper presents a detailed model of a proposed balancing controller based on sensorless current sharing, and a converter consisting of paralleled branches. Additionally, stability and sensitivity analysis are included. The model is verified with experiments by balancing the branch currents at different load currents.

	Study of the Control of a New AC Voltage Stabilizer using linear controller with reference frame transformation. By Bunthern KIM	[View] [Download]
Abstract: This paper explains the control of an automatic voltage regulator (AVR) based on series voltage compensation using a transformer and an AC-AC converter. The paper explores the control of the output AVR using linear controller using reference frame transformation technique. Simulation and experimental test has been made to verify the viability of using the proposed control technique for voltage regulation