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http://dx.doi.org/10.6113/JPE.2018.18.2.482

Design Methodology of a Three-Phase Dual Active Bridge Converter for Low Voltage Direct Current Applications  

Lee, Won-Bin (School of Electrical Engineering, Ulsan National Institute of Science and Technology)
Choi, Hyun-Jun (School of Electrical Engineering, Ulsan National Institute of Science and Technology)
Cho, Young-Pyo (Smart-Grid Group Power Distribution Lab, KEPCO Research Institute)
Ryu, Myung-Hyo (Power Conversion and Control Research Center, HVDC Research Division, KERI)
Jung, Jee-Hoon (School of Electrical Engineering, Ulsan National Institute of Science and Technology)
Publication Information
Journal of Power Electronics / v.18, no.2, 2018 , pp. 482-491 More about this Journal
Abstract
The practical design methodology of a three-phase dual active bridge (3ph-DAB) converter applied to low voltage direct current (LVDC) applications is proposed by using a mathematical model based on the steady-state operation. An analysis of the small-signal model (SSM) is important for the design of a proper controller to improve the stability and dynamics of the converter. The proposed lead-lag controller for the 3ph-DAB converter is designed with a simplified SSM analysis including an equivalent series resistor (ESR) for the output capacitor. The proposed controller can compensate the effects of the ESR zero of the output capacitor in the control-to-output voltage transfer function that can cause high-frequency noises. In addition, the performance of the power converter can be improved by using a controller designed by a SSM analysis without additional cost. The accuracy of the simplified SSM including the ESR zero of the output capacitor is verified by simulation software (PSIM). The design methodology of the 3ph-DAB converter and the performance of the proposed controller are verified by experimental results obtained with a 5-kW prototype 3ph-DAB converter.
Keywords
Controller design; Low voltage direct current (LVDC); Small-signal model (SSM); Three-phase DAB (3ph-DAB) converter;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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