Method and system for solid state dc crane control

Details Method and system for solid state dc crane control Method and system for solid state dc crane control

H - Electricity

02

P

H02P 7/10 (2006.01) B66D 1/40 (2006.01) H02P 5/00 (2006.01)

Patent

CA 2398459

A method and system for DC motor control is provided. A processor controls transistors connected to the field and armature coils of a DC motor, and measures the current and average voltage associated with said field and armature coils to determine motor speed. Motor speed is compared to a speed command to determine a speed error. The torque of the motor is adjusted to reduce the speed error. Safety features and power redistribution features are also provided.

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