The invention belongs to the technical field of cabinets, and particularly relates to an electric lifter
control system and method for a cabinet, and the
system comprises a control panel, a lifting mechanism, a lifting motor, a load sensor, an
encoder, a limiting sensor and a controller with a built-in
fuzzy PI D module. The
system comprises a control panel, a lifting mechanism, a motor, a load sensor, an
encoder, a limiting sensor and a controller with a built-in
fuzzy PI D module. Load, speed and limiting signals are collected in real time, a controller generates a closed-
loop control signal containing a
fuzzy PI D speed regulation instruction and a limiting stop instruction, and the
motor power is dynamically regulated. The method is characterized in that the fuzzy PI
D algorithm is adopted to optimize PI D parameters in real time, high-precision speed regulation (the
position error is smaller than or equal to 0.5 mm, and the speed fluctuation is smaller than 3%) and rapid overload protection are achieved, the position memory and load self-adaption functions are achieved, the problem of unstable operation caused by load change is effectively solved, and safety and control precision are remarkably improved.