A Feedforward Control Methodology Incorporating Input and Output Voltage Variations in Dual Active Bridge Converter

Saichand, K and Behera, RR and Pal, S and Sanjib, K and Shashidhar, M and Harisyam, PV and Basu, K (2024) A Feedforward Control Methodology Incorporating Input and Output Voltage Variations in Dual Active Bridge Converter. In: 2024 IEEE International Communications Energy Conference, INTELEC 2024, 4 August 2024- 7 August 2024, Bengaluru.

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Abstract

In a typical data centre application, utilization of DC distribution system by generating a HV-DC bus (800V) is becoming increasingly popular for improved distribution efficiency. For this, the Dual Active Bridge (DAB) converter is increasingly being considered for the isolated DC/DC converter stage. One important requirement of such an application is the tight regulation of output HV-DC bus Vo irrespective of load and input DC voltage changes. In this paper, a input and output voltage feed-forward based control scheme is proposed, considering the power flow analysis from both primary and secondary sides. The proposed feed-forward method is found to be inherent in a DAB converter operation. The proposed feed-forward method is incorporated in the traditional two-loop control of DAB converter. Through analytical, simulation studies and experimental validation, the proposed scheme is compared against two loop control and is found to have improved the transient performance of the DAB converter. © 2024 IEEE.

Item Type:	Conference Paper
Publication:	INTELEC, International Telecommunications Energy Conference (Proceedings)
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	The copyright for this article belongs to the publisher.
Keywords:	Closed loop control systems; DC-DC converters; Feedforward control; HVDC power transmission, Data center application; Datacenter; Dual active bridge converter; Dual active bridges; Feedfor-ward; High-frequency transformers; Input and outputs; Input voltages; Tight voltage regulation; Two-loop controls, DC distribution systems
Department/Centre:	Division of Electrical Sciences > Electrical Engineering
Date Deposited:	16 Nov 2024 13:48
Last Modified:	16 Nov 2024 13:48
URI:	http://eprints.iisc.ac.in/id/eprint/86724

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