Overcoming vector control challenges
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abstract
The use of vector control, digital signal processors (DSP), low-count encoders, which provide practical solutions to the challenges faced during the development of field-oriented control technology, is described. By combining DSPs, low-resolution speed sensors, and enhanced parameter estimation techniques, engineers achieve the benefits of field-oriented control. For design engineers, the key aspect of field control basics is that a vector control scheme for an induction machine must be capable of estimating the angular position of rotor magnetic flux to achieve effective torque generation. To keep the torque constant under steady state load, the algorithm regulates the speed at its reference value in the low-speed region.
