Vibration monitoring device of wind turbine generator and control method

Abstract

The invention discloses a vibration monitoring device of a wind turbine generator and a control method, and is characterized in that the vibration monitoring device comprises a vibration detection module, a vibration monitoring module and an upper computer; the vibration detection module is composed of an LPC2119 microcontroller, a power supply module, a first CAN interface module, a storage module and an MEMS acceleration sensor; and the vibration monitoring module is composed of a second CAN interface module, an MC9S12DT64 microcontroller, a Flash memory, a relay module, an LCD liquid crystal display screen and a GPRS communication module. According to the invention, modular design is adopted, expansion is easy, online monitoring data is used for control, offline analysis data is used for analysis and real-time separation, the integrity of data analysis is ensured, three-axis vibration data is measured, the alarm weight and the alarm frequency band of each axis can be conveniently set, and great convenience is brought to remote monitoring by adopting a wireless communication technology.

Description

technical field [0001] The invention belongs to the technical field of wind turbine vibration, and in particular relates to a vibration monitoring device and a control method of a wind turbine. Background technique [0002] When the wind turbine is in normal operation, it must work under high wind conditions. The wind turbine will inevitably vibrate in all directions. When the vibration amplitude exceeds the design requirements of the wind turbine, it will greatly affect the operation and use of the wind turbine. service life, and even cause direct damage to the unit. The high-performance vibration monitoring and analysis system can detect the operation of the equipment in time, monitor and warn the faults, and the equipment vibration monitoring technology can effectively avoid accidents and save a lot of maintenance costs. It is very important for safe production and equipment maintenance. Significance. At present, the existing vibration monitoring devices for wind turbin...

AI Technical Summary

Problems solved by technology

At present, the existing vibration monitoring devices for wind turbines have complex structures, poor monitoring data collection integrity, and are all measured by unidirectional vibration sensors, which have poor detection effects and are prone to misjudgments. In particular, they cannot meet the needs of remote monitoring.

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