DocumentCode :
3543293
Title :
Hybrid control based on a novel fast convergence and high precision CMAC for electric loading system
Author :
Yang, Bo ; Wang, Zhe
Author_Institution :
Sch. of Autom. Sci. & Electr. Eng., Beihang Univ., Beijing, China
fYear :
2009
fDate :
16-19 Aug. 2009
Abstract :
A novel CMAC hybrid control strategy with fast convergence and high precision is proposed for the electric loading system of UAVs in order to solve disturbance of the surplus torque. This CMAC control strategy employs a nonuniform memory quantization scheme that defines its computing structure. A weighted Gaussian neighborhood-based activation process is subsequently implemented to facilitate the learning and computation of this novel CMAC structure. The hybrid controller is compound of CMAC and PD algorithm. The feedforward control is realized by CMAC while the feedback control is performed by PD controller. The mathematical model of an electric loading system for UAVs is established and the detailed control structure is put forward. Simulation results show that the proposed controller has a faster convergence rate and higher precision compared with the conventional CMAC, and can effectively eliminate the surplus torque and fairly improve the dynamic loading performance of the system.
Keywords :
DC motors; Gaussian processes; PD control; actuators; aircraft control; feedback; feedforward; load regulation; neural nets; nonlinear control systems; permanent magnet motors; remotely operated vehicles; torque control; CMAC hybrid control; Gaussian activation process; PD control; cerebellar model articulation controller; electric loading system; feedback control; feedforward control; nonuniform memory quantization scheme; surplus torque disturbance; unmanned aerial vehicles; weighted Gaussian neighborhood; Aerodynamics; Automatic control; Control systems; Convergence; DC motors; Mathematical model; Neural networks; Servomotors; Torque control; Vehicle dynamics; CMAC neural network; Gaussian weighting; electric loading system; hybrid control; quantization point; surplus torque;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electronic Measurement & Instruments, 2009. ICEMI '09. 9th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-3863-1
Electronic_ISBN :
978-1-4244-3864-8
Type :
conf
DOI :
10.1109/ICEMI.2009.5274362
Filename :
5274362
Link To Document :
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