Online rotor time constant identification of induction motors based on lyapunov stability theory

作者：Cao, Pengpeng; Zhang, Xing; Yang, Shuying; Xie, Zhen; Guo, Leilei

来源：Proceedings of the CSEE, 2016, 36(14): 3947-3954.

DOI：10.13334/j.0258-8013.pcsee.151564

• Four quadrant
• Indirect vector control
• Lyapunov stability theory
• Per unit
• Rotor time constant

The error in the rotor time constant Trleads to oriented deviation in rotor flux for induction motor drive with indirect vector control. The effects of Trerror on rotor flux,electromagnetic torque and voltage were analyzed in detail. Then an optimization model of reactive power was presented based on Lyapunov stability theory. The stator frequency was introduced to the model to get per-unit value of reactive power error,thus,convergence rate of Trwas close at high speed and low speed. Moreover, this maked the estimation be available in four quadrant application. Simulation and experimental results have validated the effectiveness of the method.

• 出版日期2016
• 单位合肥工业大学