This paper proposes a new controller for power regulation in dual active bridge (DAB) DC−DC converter based on a new scheme that tracks minimum RMS current to ensure minimum losses. The proposed controller is based on an implementation of perturb and observe (P&O) tracking method that enables minimum current point tracking (MCPT) at any desired level of active power transfer and DC voltage ratio. The P&O is embedded in a closed loop control scheme which simultaneously regulates active power in DAB converter. The non-linear I-V characteristic of DAB presents the basis for this proposed controller and the rationale of using P&O algorithm. The proposed controller does not require complex non-linear converter modelling and is not circuit parameter dependent. Design procedure of the proposed controller is presented, and extensive simulation is carried out using MATLAB/Simulink to validate effectiveness of the proposed MCPT closed loop controller. An experimental prototype also substantiates the results achieved.
A new active power controller in dual active bridge DC-DC converter with a minimum-current-point-tracking technique
2020-08-14
Hebala , O M , Aboushady , A A , Ahmed , K H , Abdelsalam , I & Burgess , S J 2020 , ' A new active power controller in dual active bridge DC-DC converter with a minimum-current-point-tracking technique ' , IEEE Journal of Emerging and Selected Topics in Power Electronics , vol. N/A , pp. N/A . https://doi.org/10.1109/JESTPE.2020.3016771
Article (Journal)
Electronic Resource
English
DDC: | 629 |
CONTROLLER, APPARATUS AND METHOD FOR DIRECT CONTROL OF DUAL ACTIVE BRIDGE CONVERTER
European Patent Office | 2023
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