| Summary: | 碩士 === 遠東科技大學 === 電機工程研究所 === 99 === Permanent magnet synchronous motor(PMSM) is often used on industrial applications of the motor. However, the dynamic model response of PMSM is nonlinear and multivariable. permanent magnet synchronous motor responses to chaotic phenomenon when system parameters fall of a certain range. This chaotic behavior in motor control is not allowed because it would undermine the extreme stability of the motor, drive system and even cause damage. Therefore, this paper proposes a robust control law for chaos suppression of PMSM by using sliding mode control. And use the design of sliding mode using permanent magnet synchronous motor will push the system state near the sliding surface, the system can hit to the sliding surface, and uses Lyapunov stability theory to prove the stability of the controlled PMSM. Also we will use a set of permanent magnet synchronous motor experiment platform with analog - digital and digital - analog (AD / DA) capture card to estimate a real permanent magnet synchronous motor parameters, and then through the MATLAB software to analyze the existence of chaotic behavior in PMSM. Finally a robust sliding mode controlled is proposed to stabilize of the mortor system state, and that chaotic behavior can be eliminated.
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