Modeling and Analysis of Battery Discharge Regulator used in Satellites

摘要

Avionics battery discharge regulator which derives power from battery and delivers power to load plays an important role in power conditioning unit. With the merits of high efficiency, stable transfer function and continuous input and output current, non-isolated weinberg converter is suitable for avionics battery discharge regulator. Improved peak current control strategy is put forward in order to achieve high current sharing accuracy and reliability. Based on the small signal model of three-module non-isolated weinberg converter system, the current and voltage controllers are designed. The system with the designed controllers operates stably in any operating conditions and achieves an excellent transient response and current sharing accuracy.