The invention relates to a synchronous control system for double traction machines of a lift. Two transducers respectively control two traction machines, a lift car is lifted by two traction machines, a main transducer is set as a speed control mode of a closed-loop vector control mode, and the main transducer can control the running speed of the main traction machine in real time according to the running and speed commands of a programmable controller and main traction machine speed signals fed back by an encoder; a slave transducer is set as a torque control mode of the closed-loop vector control mode, and the slave transducer can control the running speed of the slave traction machine in real time according to running commands of the programmable controller, torque commands output by the main transducer in real time and slave traction machine speed signals fed back by the encoder, the synchronous control for the lifting of two traction machines is realized based on the rated loading capacity lifting of the lift, the performance is improved, and the control stability is guaranteed. The synchronous control system for double traction machines of the lift meets the market requirement of the heavy-loading capacity lift.
Synchronous control system for double traction machines of lift
2015-08-19
Patent
Electronic Resource
English
IPC: | B66B Aufzüge , ELEVATORS |
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