Title :
Predictive Control of Non-minimum Phase Motor with Backlash in an Earth Station Antenna
Author :
Mohammadzaman, Iman ; Sedigh, Ali Khaki ; Nasirian, Mehrzad
Author_Institution :
Fac. of Electr. Eng., Malek Ashtar Univ. of Technol., Tehran, Iran
Abstract :
In this paper, generalized predictive control (GPC) algorithm is implemented to control an Earth station antenna with a non-minimum phase motor. Nonlinear term in motors caused by gearbox or other parts is modeled by a backlash block. Simulation results show the effectiveness of GPC method for robust control in the presence of backlash nonlinearity without a priori knowledge about upper and lower bounds of backlash. Also, adaptation mechanism as a self tuning predictive control is used to conquer environment changing.
Keywords :
antenna accessories; nonlinear control systems; position control; predictive control; robust control; satellite ground stations; self-adjusting systems; telecommunication control; Earth station antenna; antenna position control; backlash block; backlash nonlinearity; generalized predictive control; nonlinear term modeling; nonminimum phase motor; robust control; self tuning predictive control; Azimuth; Control systems; Optimal control; Predictive control; Predictive models; Process control; Receiving antennas; Satellite antennas; Satellite ground stations; Software packages; Backlash; Earth Station Antenna; Generalized Predictive Control; Non-minimum Phase Motor;
Conference_Titel :
Control Conference, 2006. CCC 2006. Chinese
Conference_Location :
Harbin
Print_ISBN :
7-81077-802-1
DOI :
10.1109/CHICC.2006.280804
