Frequency converting control system for building hoist and control method for frequency converting control system

Abstract

The invention discloses a frequency converting control system for a building hoist. The system comprises a limit switch, an over-current protection control switch, a phase-sequence control switch, a main alternating-current contactor, a control transformer, a vector control type frequency converter and a control loop, wherein the limit switch is connected to a power input end of the frequency converting control system and controls make and break of a power source of the frequency converting control system; the over-current protection control switch is in circuit connection to one end, which is connected to the frequency converting control system, of the limit switch; the phase-sequence control switch, the main alternating-current contactor and the control transformer are respectively in circuit connection with the over-current protection control switch; an input end of the vector control type frequency converter is in circuit connection with the main alternating-current contactor; an output end of the vector control type frequency converter is in circuit connection with a motor of the building hoist; and the control loop is in circuit connection with the transformer. The vector control type frequency converter is specially used for the hoist, control software in the vector control type frequency converter is specially designed for professionalism of the building hoist, the frequency converting control system also has impact feeling of the original power frequency control system during running, impact damage on mechanical equipment is reduced, and drivers and passengers of the building hoist feel comfortable.

Description

technical field [0001] The invention relates to a frequency conversion control technology applied in the field of construction elevators, in particular to a frequency conversion control system for construction elevators and a control method thereof. Background technique [0002] At present, the safety and comfort of construction elevators in specific use are not ideal, and new solutions are needed. [0003] Although the frequency converter has been widely used in the field of machine tools and mechanical equipment, it has not been recognized by users in construction elevators, because it is not a separate speed regulation during the use of the elevator, which involves the stability of the equipment when it starts and stops. performance and the operating effect of the braking components in the system when the equipment stops. Contents of the invention [0004] The invention provides a frequency conversion control system and control method for a construction elevator, which...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a frequency conversion control system and control method for a construction elevator, which solves the problem that the original traditional power frequency control system vibrates greatly during actual operation, which makes people feel uncomfortable and unsafe, and improves comfort and safety.

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