Emergency control system and control method for variable frequency control system of dredger winch

Abstract

The invention discloses an emergency control system used for a winch frequency control system of a dredger. The emergency control system comprises an emergency control device, an emergency control panel, a winch frequency control system failure information collecting device, an emergency power supply, an emergency motor, an emergency clutch and a contactor. The emergency control device is respectively connected with the emergency control panel, the winch frequency control system failure information collecting device, the contactor, a winch brake device, a dredging control table, the emergency motor and the emergency clutch by a control table. The emergency control device adopts a single chip microprocessor (SCM) as a control chip. The control method adopted by the invention includes system initialization, signal collection, filtering and logic processing. The invention can better deal with the impact of the winch frequency control system on the dredger running and the safety of equipment and personnel under the failure condition. The invention only adopts one SCM to carry out control to the emergency system so as to lead the structure to be simple.

Description

technical field [0001] The invention relates to an emergency control system of a frequency conversion control system of a dredger winch, in particular to an emergency control system for dealing with failures of the frequency conversion control system of a dredger winch. Background technique [0002] At the dredger production site, the dredger controls the lifting of the dredger head through the frequency conversion control system of the winch. When the frequency conversion control system of the winch fails, the bridge winch may stop in the underwater mud, causing the dredger to move No, it is also possible to stop in the air, affecting the safety of personnel and equipment. [0003] At present, since the domestic winch frequency conversion control system has just started, the emergency control system mostly adopts manual operation or simple logic control operation with PLC. These operation methods are complicated and unsafe, and require professionals to operate. For the app...

AI Technical Summary

Problems solved by technology

[0002] At the dredger production site, the dredger controls the lifting of the dredger head through the frequency conversion control system of the winch. When the frequency conversion control system of the winch fails, the bridge winch may stop in the underwater mud, causing the dredger to move No, it is also possible to stop in the air, affecting the safety of personnel and equipment

[0003] At present, since the domestic winch frequency conversion control system has just started, the emergency control system mostly adopts manual operation or simple logic control operation with PLC. These operation methods are complicated and unsafe, and require professionals to operate. For applications on mud ships, traditional emergency control methods cannot meet the linkage control requirements of winch frequency conversion control and emergency control

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