Hybrid genetic algorithms for parameter identification of a hysteresis model of magnetostrictive actuators

作者：Zheng Jiaju^*; Cao Shuying; Wang Hongli; Huang Wenmei

来源：Neurocomputing, 2007, 70(4-6): 749-761.

DOI：10.1016/j.neucom.2006.10.010

• hybrid genetic algorithms
• hysteresis
• magnetostrictive actuator
• parameter identification

In this paper, we present an improved hysteresis model for magnetos trictive actuators. To obtain optimal parameters of the model, we study two distinct hybrid strategies: namely, employing a gradient algorithm as a local search operation of a genetic algorithm (GA), and taking the best individual of a GA as the initial value of a gradient algorithm. Here, two different gradient algorithms, a well-known Levenberg-Marquardt algorithm (LMA) and a novel Trust-Region algorithm (TRA), are investigated. Finally, the proposed four hybrid genetic algorithms (HGAs) are applied to identify parameters of the improved model. The simulation and experimental results show the performances of the HGAs and the improved hysteresis model.

• 出版日期2007-1
• 单位天津大学; 河北工业大学