Title :
Very high frequency regulator for space applications
Author :
Capel, A. ; Sullivan, D.O.
Author_Institution :
Alcatel Espace, Toulouse, France
Abstract :
In the frame of a spaceborn experiment based on low noise sensors with a 25 MHz spectrum, the drastic requirement to develop a power converter operating above 30 MHz has resulted. This paper describes a bidirectional buck PWM regulator calling for new technologies. Its power switches are RF MOSFETs and control is based on current mode state space variable feedback derived from the prediction of the conduction times of the power switches. The nonlinearity of such a controller is solved by using neural network techniques. Large signal simulations are presented to validate the concept
Keywords :
PWM power convertors; aerospace control; field effect transistor switches; neurocontrollers; power MOSFET; power field effect transistors; power semiconductor switches; space vehicle power plants; state feedback; state-space methods; voltage control; voltage regulators; VHF voltage regulator; bidirectional buck PWM regulator; conduction times; controller nonlinearity; current mode state space variable feedback; large signal simulations; neural network techniques; power MOSFET switches; power converter; space power applications; Frequency conversion; MOSFET circuits; Neural networks; Optimal control; Pulse width modulation; Radio frequency; Regulators; Space technology; Switches; Switching converters;
Conference_Titel :
Power Electronics Specialists Conference, 1996. PESC '96 Record., 27th Annual IEEE
Conference_Location :
Baveno
Print_ISBN :
0-7803-3500-7
DOI :
10.1109/PESC.1996.548680
