Variable DC Bus Voltage Control Scheme for the More Electric Aircraft Power Generation System

This paper aims to introduce a control scheme that offers variable voltage control for more electric aircraft electrical power systems. This control scheme allows increased power intake to the loads by variation of the bus voltage in addition to other key control functions for a generator system. The load considered is the electro-thermal based icing protection system that allows variation in operational voltage. The controllers are designed based on their respective derived plants for the main requirement of stable operation. The control scheme is tested in simulation to demonstrate the variable voltage concept along with the other operational capabilities.