Portable hydroelectric generating set vibration and swing degree data detecting system and method

Abstract

The invention discloses a portable hydroelectric generating set vibration and swing degree data detecting system and method. The portable hydroelectric generating set vibration and swing degree data detecting system comprises an SoC embedded core, an analog signal acquisition module, an analog input conditioning circuit, an A / D converter and a memorizer, wherein the analog signal acquisition module, the analog input conditioning circuit, the A / D converter and the SoC embedded core are connected in sequence, the memorizer is connected with the SoC embedded core, the analog signal acquisition module comprises an electrical vortex sensor and a vibration sensor, the analog input conditioning circuit comprises an amplification circuit serving as a front-stage circuit and a filter circuit serving as a rear-stage circuit. According to the portable hydroelectric generating set vibration and swing degree data detecting system and method, the detection precision is high, implementation is easy, and the data filtering effect is good.

Description

technical field [0001] The invention relates to a vibration swing data detection system and method of a portable hydroelectric unit. Background technique [0002] At present, all hydropower plants have comprehensively promoted the installation of online unit vibration and swing monitoring devices. Due to the limitations of the "three-year minor repair and five-year major repair" plan and maintenance system implemented by hydropower plants, it is difficult to implement the sensors used in the unit vibration swing online monitoring system. Annual regular inspection is required, and the sensor installed on site is affected by factors such as damp environment, water pressure pulsation, unit vibration area and other factors during long-term operation, and problems such as measurement signal distortion and inaccurate measurement values ​​occur from time to time, resulting in online monitoring. It is difficult for the system to obtain the real situation of the current operating sta...

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Problems solved by technology

[0002] At present, all hydropower plants have fully promoted the installation of online monitoring devices for unit vibration and swing. Due to the restrictions of the "three-year minor repair and five-year major repair" plan and maintenance system implemented by hydropower plants, it is difficult to implement the sensors used in the unit vibration and swing online monitoring system. Annual regular inspection is required, and the sensor installed on site is affected by factors such as damp environment, water pressure pulsation, unit vibration area and other factors during long-term operation, and problems such as measurement signal distortion and inaccurate measurement values ​​occur from time to time, resulting in online monitoring. It is difficult for the system to obtain the real situation of the current operating state of the unit, and it is difficult for the power plant operators to grasp the actual situation of the vibration swing of the unit, which seriously affects the operation decision of the unit

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