Abstract: To date, the axis adjustment of a vertical hydro-generator unit in China and abroad has adopted the method of constant-phase fixed-point turning, manual table measurement, and manual calculation adjustment. Not only does this require a long turning cycle and a heavy workload of manual measurement and calculation, but its work efficiency and the accuracy of calculation and adjustment are relatively low due to the lack of sufficient measurement points and strong subjectivity in adjustment schemes. This paper develops an intelligent axis adjustment system for vertical hydro-generator units. By using the continuous turning axis adjustment process, we have achieved automatic data collection, wireless communication, and automatic calculation and analysis of the turning data. This system can generate axis adjustment schemes automatically. Its successful application at the Gezhouba hydropower station proves that it can greatly raise the intelligent level of axis adjustment process.

Key words: hydro-generator units, axis adjustment, axis alignment