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A new hybrid excitation permanent machine-doubly fed hybrid excitation permanent magnet synchronous machine without rotor winding is presented. The structure, mathematic model and operation principle of the machine are introduced. It is shown that excitation regulation can be realized by changing the current of stator control winding. The field control performance in the generator and motor operation...
In contrast to conventional flux-weakening control methods, an algorithm based on operation times (T0) of zero voltage space vector for permanent magnet synchronous motor (PMSM) is proposed. In this paper, the d-axis current (id) is derived from a fuzzy controller. The proposed strategy can achieve fast dynamic control performance as well as parameter insensitivity in the flux-weakening region. Otherwise,...
In this paper it is proposed an enhanced simplified control system with good dynamical performances for surface-mounted permanent magnet synchronous motors with sinusoidal current control (BLAC), in that to determine the rotor position respectively the speed are used two Hall sensors. The concept of the proposed control system is a speed closed loop. The motor speed is controlled by the voltage amplitude...
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