Single-Shunt Three-Phase Current Reconstruction Algorithm for Sensorless FOC of a PMSM
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چکیده
Field-oriented control can be implemented using position sensors such as encoders, resolvers or Hall sensors. However, not all motor control applications require such granularity given by a resolver or encoder; and, in many cases, they do not require control at zero speed. These applications are a perfect target for using sensorless techniques in which the motor position can be estimated using the information provided by the currents flowing through the motor coils. There are two popular approaches to this sensing technique: the dual-shunt resistor and the single-shunt resistor.
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