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In this paper, a sliding mode speed control scheme associated with an original fuzzy disturbance observer (FDO) is presented for the permanent-magnet synchronous motor (PMSM) control system with various disturbances. In order to overcome the main drawback of traditional sliding mode control, that is, large control effort and chattering, and meanwhile, enhance the robustness of the system, a FDO with...
In this paper, predictive speed control (PSC) of interior permanent magnet sychonous motor (IPMSM) which is based on finite control set model predictive control (FCS-MPC) is investigated. The predictive speed controller with a cascade-free structure has a excellent dynamic performance. A prediction model with speed compensation is used to predict the future states of IPMSM. Then a cost function with...
This paper presents an investigative work about the direct speed control (DSC) of interior permanent magnet synchronous motor (IPMSM) based on finite control set model predictive control (FCS-MPC). A compensation is applied to the speed prediction model because of the unknown load torque and varied rotary inertia. And a multi-constrained cost function with dynamically adjustable weight factors is...
In this paper, an advanced PI control method was analyzed. The analysis of Bode plot in frequency domain, and the experiment shows that advanced controller is better than the existing PI controllers. They can achieve higher bandwidth, lower settling time and better disturbance rejection ability. The increased performance costs little in sensor noise amplification. We show using true-life design examples...
The main strategy in analyzing the motion of a rigid body is to split the motion into the linear motion of the CM and the angular motion of the body about its CM. This is because all particles composing the body show the same relative angular motion about the CM. In other words, one can describe the motion of the rigid body as a whole rather than those of the particles individually. The physical characteristics...
The main strategy in analyzing the motion of a rigid body is to split the motion into the linear motion of the CM and the angular motion of the body about its CM. This is because all particles composing the body show the same relative angular motion about the CM. In other words, one can describe the motion of the rigid body as a whole rather than those of the particles individually. The physical characteristics...
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