Network node design based on turbine condition monitoring

YE Yue-qing, PEI Shuang, WANG Hai-lun

(Electric and Information Engineering Academy, Quzhou College, Quzhou 324000, China)

Abstract: Aiming at solving the problems of the actual values of parameters, the signal transmission of upper and lower machines or faults of each equipment appeared during the operation of hydraulic turbine group, the data signal acquisition technology, the A/D conversion technology and transceivers were applied to the technology of the signal conversion and transmission respectively. The condition monitoring principles and the node design of the condition monitoring of the networking hydraulic turbine group were investigated and the relationship between the site acquisition of the equipment data, the signal transmission and the systematic PC communications during the operation of the hydraulic turbine group were established. Accordingly, a method was presented to data acquisition, signal conversion and transmission. The site nodes constituted of each chip were evaluated on the systematic structure where the core was ATmega8515 single chip. The designed effect and performance were tested and analyzed. The results indicate that designed effect of the data acquisition, storage, conversion and transmission of the hydraulic turbine group have been achieved by using the designed nodes of condition monitoring of networking hydraulic turbine group, thus completing the real-time and remote monitoring of the sample data and status characteristics.

Key words: hydraulic turbine group; node design; A/D conversion; ATmega8515