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This paper proposes a novel smooth transition method, which can be applied to back electromotive force (BEMF)-based permanent magnet synchronous motors (PMSM) sensorless vector control drive. The problem with BEMF-based sensorless control of PMSM control is the inherent BEMF estimation precision before reaching a certain rotation velocity. A position open loop constant current (I-F) method, which...
A sensorless vector control system of Permanent Magnet Synchronous Motor (PMSM) is designed based on Sliding Mode Observer (SMO) by analyzing the model of PMSM in this paper. Using Kalman Filter in the output of Back Electromotive Force (back EMF), makes the waveform smoothly and accurately. It also makes the model more suitable for high-performance application. Some continuous functions like sat(s),...
The performance of a DSP architecture allows an intelligent approach to reduce the complete system costs of digital motion control applications using cheaper electrical motors, fewer sensors, and smaller sizes of EMI filters. To provide also a cost optimal solution Texas Instruments developed a single chip solution combining the features of a Microcontroller and the performance advantages of a DSP...
A novel control strategy based on the instantaneous power direct control for permanent magnet synchronous machine (PMSM) system is proposed. The control mechanism is firstly analyzed, and the influence of the instantaneous active and reactive power in torque and stator flux-linkage is explained in detail. The strategy of the direct power control by selecting the optimum voltage vector is then presented,...
This paper presents a speed sensorless non-salient permanent magnet synchronous motor (PMSM) sliding mode control algorithm. The key idea is to integrate the benefits of the variable structure system control design and the event-driven sequential control structures to raise the system performance and control efficiency. The operation at low speed is improved by reducing the disturbance impact. The...
Sliding mode observer (SMO) for permanent magnet synchronous motor (PMSM) speed and rotor position is used to realize sensorless control. Most of the current researches studying the PMSM SMO are based on non-saliency PMSM model and ignore the difference between d- and q-axes inductances. This paper studies a novel SMO based on PMSM's extended EMF (EEMF) model, considering the saliency of PMSM. It...
The application of the slide-mode observer in the sensorless vector-control of permanent magnet synchronous motor (PMSM) is proposed. Design a slide-mode observer to estimate the information of rotor position. Establish the adaptive rule and analysis the stability of the slide-mode observer. The application of the space vector pulse width modulation (SVPWM) is introduced in the control scheme of the...
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