Lower cost of infrastructure construction and optimization of repeater coil method
Investigation of contactless power transfer while driving using electromagnetic induction and a method to reduce leakage magnetic field
Engineers use digital signal processors or microcontroller systems in power electronic applications to handle open- and closed-loop control, errors, data analysis, and user communication for teaching purposes. Unfortunately, conventional solutions limit flexibility and adaptivity. However, these features are essential to easily and quickly get students started with new teaching setups, train them on how to control power semiconductors, and let them analyze converter characteristics. Therefore, it is advantageous for microcontroller systems to enable user communication to change system parameters during operation. This paper presents an advanced microcontroller system that fulfills these requirements with a novel SPI communication and filter method. The study validates the microcontroller system with two experimental setups. First, the evaluation investigates closed-loop control, proving it is well-suited for teaching purposes using parameter adjustments during operation. Finally, the results show power semiconductors’ switching characteristics with another experimental setup to confirm adaptability.
So far, current transients in the boost inductors of current-fed triple-active-brigde (CFTAB) converters are often accepted or ignored in the literature as the considered time interval of simulation and measurement results is typically very large so that the transient behavior of the current is not visible.
In this work, a model-based control strategy is presented that minimizes transient current oscillations in the boost inductors of CFTAB converters after a load step, which improves the dynamic performance of the converter drastically and furthermore prevents saturation and additional losses.