Title :
Analyzing Chaotic Phenomenon in Brushless DC Thruster Motor of Deepwater Robot with Lyapunov Exponent
Author :
An, Yuejun ; Sun, Changzhi ; Chen, Dongyang ; Chen, Zhifei ; Shi, Hongyan ; Liu, Zijun ; Yan, Kuichen ; Warbinek, Kurt
Author_Institution :
Sch. of Electr. Eng., Shenyang Univ. of Technol.
Abstract :
The surging phenomenon appearing in thruster motor system may affect the stability, reliability and safety running of deepwater robot. This paper seeks to introduce an improved calculation algorithm of largest Lyapunov exponent by use of non-linear chaos theory analysis and study. The Lyapunov exponent of thruster motor system is calculated respectively in different work circumstance, of which the result identifies the chaotic motion appearance in motor system. The chaos existence in thruster motor system is also supported further by digital simulation in corresponding circumstances
Keywords :
Lyapunov methods; brushless DC motors; chaos; marine safety; robots; surges; Lyapunov exponent; brushless DC thruster motor; chaotic phenomenon; deepwater robot; digital simulation; nonlinear chaos theory analysis; surging phenomenon; Brushless DC motors; Brushless motors; Chaos; Content addressable storage; DC motors; Nonlinear distortion; Robotics and automation; Robots; Stability; Sun; Lyapunov exponent; chaos; robot; thruster motor;
Conference_Titel :
Electrical Machines and Systems, 2005. ICEMS 2005. Proceedings of the Eighth International Conference on
Conference_Location :
Nanjing
Print_ISBN :
7-5062-7407-8
DOI :
10.1109/ICEMS.2005.202847
