Modular DAB DC-DC converter low voltage side dc link capacitor two-stage charging-up control for solid state transformer application

• Main Authors: Cao, Shuyu, Sriram, Vaisambhayana Brihadeeswara, Dehghani Tafti, Hossein, Ravi Kishore, Kanamarlapudi Venkata, Yeo, Howe Li, Tripathi, Anshuman, Pou, Josep
• Other Authors: School of Electrical and Electronic Engineering
• Format: Conference or Workshop Item
• Language: English
• Published: 2018
• Subjects: Solid State Transformer (SST); Dual Active Bridge (DAB)
• Online Access: https://hdl.handle.net/10356/87059; http://hdl.handle.net/10220/44295
• Institution: Nanyang Technological University

This paper presents an effective two stage DAB charging-up control method for modular DC-DC converters with low voltage side common DC bus voltage starting from zero. In 1st stage of charging, the DAB controller is modified to allow variable duty cycle control of medium voltage side DAB converter. I...