Back EMF reduction in a storage drive using pulse width modulation in a closed loop motor control system

A storage drive implements a method for a BEMF voltage reduction during a deceleration period of an electric motor of the storage drive. In operation, the electric motor is disconnected from a power supply during an entirety of the deceleration period of the electric motor to prevent any flow of a B...

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Bibliographische Detailangaben
Hauptverfasser: Bates, Allen K, Bui, Nhan Xuan, Hancock, Reed A, Russo, Louis P
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A storage drive implements a method for a BEMF voltage reduction during a deceleration period of an electric motor of the storage drive. In operation, the electric motor is disconnected from a power supply during an entirety of the deceleration period of the electric motor to prevent any flow of a BEMF current into the power supply, and the electric motor is connected to a power return during a segment or an entirety of the deceleration period of the electric motor to dissipate any BEMF voltage within the electric motor.