Patent ID: 7142930
Filing Date: 2006-11-28
Classification: F04C,G05B

Abstract:
1. A disturbance estimated-type control system comprising: a variable displacement-type gas compressor based on a mathematical model comprised of one of a state equation and a transfer function and prepared by system identification technology; disturbance estimating means based on an expansion system based on the mathematical model for estimating a disturbance of the variable displacement-type gas compressor in accordance with an input signal inputted into the variable displacement-type gas compressor and a detection signal detected from the variable displacement-type gas compressor; compensating means based on the mathematical model for compensating for a deviation between the detection signal and a target value and for outputting a corresponding control signal; and subtracting means for subtracting the control signal of the compensating means from a disturbance estimated value of the disturbance estimating means.