Direct Power Control of Dual Active Bridge Bidirectional DC-DC Converter
Objective
The main objective of this paper is to enhance the dynamic response, improve DC-link voltage stability, and provide robust power flow control between two bridges by adjusting the phase shift ratio between them.
Abstract
This paper presents a DC-DC bi-directional dual active bridge (DAB) power converter, and simulating direct power control (DPC) control for the power converter. The DPC control enables it to have an enhanced dynamic response with improved dc-link voltage stability while controlling the power flow. The output voltage is controlled by the amount of power flow while the power flow depends on the phase shift ratio between primary and secondary bridge. With the DPC control presented here, the control reference is calculated from output voltage and load current, and subsequently phase shift ratio is computed, thereby controlling the power flow. The fast control over the amount power flow provides an overall enhanced performance with improved reference voltage tracking as well as robustness against input voltage fluctuation and load variation. The proposed control scheme is simulated in Matlab Simulink environment.
Keywords: Bi-directional dc-dc converter, Direct Power Control (DPC), Dual Active Bridge (DAB).
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Block Diagram
Specifications
Software Configuration:
Operating System : Windows 7/8/10
Application Software: MATLAB / Simulink
Hardware Configuration:
RAM : 8 GB
Processor : I3 / I5 (Mostly prefer)
Learning Outcomes
· Introduction to Matlab/Simulink
· What is EISPACK & LINPACK
· How to start with MATLAB
· About Matlab language
· About tools & libraries
· Application of Matlab/Simulink
· About Matlab desktop
· Features of Matlab/Simulink
· Basics on MATLAB/Simulink
· Introduction to Voltage DC source
· Introduction to Linear load
· Introduction to Bidirectional converter
· Introduction to the PI controller
· Introduction to the Rectifier
· Introduction to Pulse Width Modulation (PWM),
· Project Development Skills:
o Problem analyzing skills
o Problem solving skills
o Creativity and imaginary skills
o Programming skills
o Deployment
o Testing skills
o Debugging skills
o Project presentation skills
o Thesis writing skills
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