Sensor reduction and system operation enhancements via high-performance electric motor control algorithms.
Traditional electric machine control methods can leave something to be desired. By using advanced control techniques, e.g. model predictive control (MPC), performance can be enhanced: faster response, superior noise rejection, wider operation range, etc.
Reduced Current Sensor
In three-phase electric motor drives, three current sensors are typically used, with one being redundant should a sensor failure occur. We ask the question: Can this redundant sensor be removed to reduce system costs? To safely do so in case of a failure in two sensor operation, an estimator is required. Through the employment of current observers, this question can be answered in the affirmative.
Columbia University in the City of New York Department of Electrical Engineering
Motor Drives and Power Electronics Laboratory (MPLab)