Modeling and identification of asymmetric Bouc–Wen hysteresis for piezoelectric actuator via a novel differential evolution algorithm

摘要: Abstract A novel modified Bouc–Wen (MBW) model is presented in this paper to describe the asymmetric hysteresis of piezoelectric actuator, and parameter identification method proposed based on a differential evolution (MDE) algorithm. In MBW model, polynomial-based non-lag component used realize property. MDE algorithm, comprehensive trial vector generation strategy initial control parameters are investigated balance global local search ability. The MDE-based compared with classical algorithm particle swarm optimization results demonstrate that superior its competitors for identifying actuator.