DEVELOPMENT OF THE HARDWARE AND SOFTWARE SOLUTION FOR SYSTEM OF CONTROL AIR GAP IN THE HYDROGENERATORS

Abstract

The subject of paper. The subject of paper is the methods of solving the actual problem of
control the air gap in the hydrogenerators. These methods are used for improve the efficiency work of the
hydrogenerators and reduce downtime caused by unscheduled repairs. In case high efficiency control is
possible to transition from the planned repairs to repairs according to the the actual state of the generator.
The methodology of problem solving in the paper. To solve the problem of control the air gap in the
hydrogenerators use computerized specialized measuring control system. In this sуstem can perform analysis
of changes in the air gap for each pole of the rotor used specialized software. The objective of the paper.
The objective of this paper is to develop hardware and software solution for computerized control system of
the air gap in the hydrogenerator for improving the efficiency of control. For analysis the changes in the air
gap for each pole of the rotor in the system use specialized development software. For obtain measurement
data proposed to use an original capacitive sensor that is adapted to the conditions and structural features
in the hydrogenerator. Installed sensors is enables to control value of the air gap in the hydrogenerator.
Sensors are located in a horizontal plane of 900
at an angle to each other. Solution. Use the computerized
measuring equipment with specialized capacitive sensors as primary sensor is the perspective direction for
building the systems of control the air gap in the hydrogenerator type СГК 538/160-70M. To convert the
analog signal of the capacitive sensor into digital code while maintaining the measurement range is used
Capacitance-to-Digital Converter with Temperature Sensor AD7745. For construction of the hardware
control system uses original capacitive sensor in combination with Capacitance-to-Digital Converter. For
construction of the developed software for control system used graphical development environment
LabVIEW. Conclusions. The results of experimental laboratory research proposed and developed software
and hardware control system of air gap in the hydrogenerator confirm–working ability the proposed
solutions;– possibility for application the proposed and developed software and hardware solution for
development the computerized control system the air gap between the stator and rotor in the
hydrogenerators in the range 6 ± 4 mm of air gap.