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This paper introduces a new vector control strategy of three-phase PWM rectifier. Because input currents of PWM rectifier are cross coupling in d-q coordinates, hysteresis regulators are used to achieve approximate decoupling control. Absolute error of d-q currents is considered while building d-q switching functions. Suitable space voltage vector is selected base on a switching function table. To...
This paper presents a digital implementation of two-axis position control of microstepping bipolar drive with the controlled current, depending on the load torque applied. The topology of power converter for each motor is the conventional three-phase inverter, using space-vector pulse-width-modulation (PWM) technique. It is well known that the microstepping technique allows the stepping motor rotating...
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