Intelligent detection system and method for looseness and fracture of bolts of wind driven generator

Abstract

The invention discloses an intelligent detection system and method for looseness and fracture of bolts of a wind driven generator. The system comprises a contact type vertical measurement module, a contact type horizontal measurement module, a signal transmission module, a loose fracture identification module, a flexible wire fracture detection module, a display module, a non-contact type vertical measurement module, a non-contact type horizontal measurement module and a power supply module. The contact type vertical measurement module, the contact type horizontal measurement module, the non-contact type vertical measurement module, the non-contact type horizontal measurement module and the flexible broken line detection module are used for comprehensively judging the bolt loosening and breaking conditions of the wind driven generator, and the obtained information is displayed on site and transmitted to a wind power plant centralized control center in a wired mode. Operation personnel can conveniently observe the operation condition of key bolts in real time, alarm short messages and centralized control page pop-up window alarm information are sent out at the first time when the loosening and breaking conditions occur, maintenance personnel go to the site as soon as possible to conduct fastening and replacement, and the bolt failure accident is effectively avoided.

Description

technical field [0001] The invention belongs to the technical field of wind-driven generator bolt loosening and fracture detection, and in particular relates to an intelligent detection system and method for wind-driven generator bolt loosening and fracture. Background technique [0002] Restricting traditional coal power and increasing energy demand have become the main contradiction, and the installed capacity of new energy and energy storage continues to expand. Among them, wind power generation includes offshore wind power and land wind power, which has developed rapidly in recent years. Ranked No. 1 in the world. By 2020, the wind power generation capacity will reach 150-180 million kW. Accelerating the development of wind power generation has become one of the national key strategies. In the future, it will realize intelligent wind power generation technology and realize more advanced technologies in wind power. Power generation equipment, rational use of abundant wind...

AI Technical Summary

Problems solved by technology

[0003] The existing toilet cleaning technology with loose and broken bolts of wind turbines has the following defects and deficiencies: (1) According to the investigation of major wind power groups in the early stage, the main way of identifying bolt looseness is manual visual recognition, which is judged by manual marking and photographing. The wind farm is a distributed layout, and each inspection cycle is long, which brings a lot of inconvenience to the on-site wind turbine bolt loosening and fracture inspection; (2) At present, the wind turbine bolt detection method is relatively single, and contact and non-contact detection methods have not been realized. combined with flexible detection method to comprehensively judge bolt looseness, and at the same time, bolt space and three-dimensional monitoring have not been realized; (3) The cost of existing wind turbine bolt detection equipment is relatively high, and some of them use visual recognition methods, which are more expensive than equipment cost installation and construction. There are restrictive factors, which are not convenient for on-site promotion and use

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