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Unbalance response is a common vibration problem associated with rotating machinery. For several years, researchers have demonstrated that this vibration could be greatly alleviated for machines using active magnetic bearings through active control. Many of the control strategies employed fall into a class which the authors have termed adaptive open loop(More)
With the advent of high-speed digital signal processors (DSPs) specialized for motion control applications, it has become possible to control motors without mechanical (speed or position) sensors. This is achieved by algorithms that estimate the desired quantities in real time, based on the electrical signals in the motor windings. Benefits include cost(More)
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