A FPGA-Based Algorithm for Soft Switched DC-DC Converters with a Variable Transmission Path

Conference: PCIM Europe 2018 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
06/05/2018 - 06/07/2018 at Nürnberg, Deutschland

Proceedings: PCIM Europe 2018

Pages: 6Language: englishTyp: PDF

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Goebel, Lukas; Raab, Sebastian; Ackva, Ansgar (University of Applied Sciences Würzburg-Schweinfurt, Germany)

In this paper, a Second Order Generalized Integrator (SOGI) in combination with a Frequency Locked Loop (FLL) is used for controlling a resonant DCDC Converter. Therefore, the primary current of the transmission path is the input signal of the SOGI. With the filtered outputs v' and qv', the current phase angle can be calculated and the correct switching time is determined by compensation of the signal propagation delay.