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Wireless power supply and signal transmission method for hydro-generator rotor monitoring system

A hydro-generator and monitoring system technology, which is applied to electrical components, electromechanical devices, circuit devices, etc., can solve the problems of power transmission stability and poor signal transmission quality, and cannot guarantee the safety and reliability of generator operation. Achieve the effect of improving stability and signal transmission quality, ensuring safety and reliability

Pending Publication Date: 2021-12-10
DONGFANG ELECTRIC MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the stability of power transmission and the quality of signal transmission are poor, which cannot guarantee the safety and reliability of generator operation

Method used

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  • Wireless power supply and signal transmission method for hydro-generator rotor monitoring system
  • Wireless power supply and signal transmission method for hydro-generator rotor monitoring system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] see figure 1 and figure 2 , a method for wireless power supply and signal transmission of a hydraulic generator rotor monitoring system, comprising the following steps:

[0044] a. The factory power supply 12 supplies power to the wireless signal receiver 1 and the rectification inverter circuit arranged on the generator fixture 13, and the rectification inverter circuit transmits the electric energy to the annular transmitting coil 11 of the wireless power supply and signal transmission device, and the annular emission The coil 11 transmits the electric energy to the receiving coil 9 arranged on the generator rotor 10;

[0045] b. The receiving coil 9 transmits the electric energy to the rectification and filtering circuit, and the rectification and filtering circuit transmits the electric energy to the wireless signal transmitter 3 and the rotor monitoring system 14 respectively, so as to complete the electric energy transmission from the stationary end to the rotat...

Embodiment 2

[0050] see figure 1 and figure 2 , a method for wireless power supply and signal transmission of a hydraulic generator rotor monitoring system, comprising the following steps:

[0051] a. The factory power supply 12 supplies power to the wireless signal receiver 1 and the rectification inverter circuit arranged on the generator fixture 13, and the rectification inverter circuit transmits the electric energy to the annular transmitting coil 11 of the wireless power supply and signal transmission device, and the annular emission The coil 11 transmits the electric energy to the receiving coil 9 arranged on the generator rotor 10;

[0052] b. The receiving coil 9 transmits the electric energy to the rectification and filtering circuit, and the rectification and filtering circuit transmits the electric energy to the wireless signal transmitter 3 and the rotor monitoring system 14 respectively, so as to complete the electric energy transmission from the stationary end to the rotat...

Embodiment 3

[0060] see figure 1 and figure 2 , a method for wireless power supply and signal transmission of a hydraulic generator rotor monitoring system, comprising the following steps:

[0061] a. The factory power supply 12 supplies power to the wireless signal receiver 1 and the rectification inverter circuit arranged on the generator fixture 13, and the rectification inverter circuit transmits the electric energy to the annular transmitting coil 11 of the wireless power supply and signal transmission device, and the annular emission The coil 11 transmits the electric energy to the receiving coil 9 arranged on the generator rotor 10;

[0062] b. The receiving coil 9 transmits the electric energy to the rectification and filtering circuit, and the rectification and filtering circuit transmits the electric energy to the wireless signal transmitter 3 and the rotor monitoring system 14 respectively, so as to complete the electric energy transmission from the stationary end to the rotat...

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Abstract

The invention discloses a wireless power supply and signal transmission method for a hydro-generator rotor monitoring system, and belongs to the field of hydro-generator operation state monitoring. The method is characterized by comprising the following steps: a, a station service power supply supplies power to a wireless signal receiver and a rectification inverter circuit; b, a receiving coil transmits the electric energy to a rectification filter circuit, and the rectification filter circuit transmits the electric energy to a wireless signal transmitter and a rotor monitoring system; c, a data signal output by the rotor monitoring system is sent to a wireless signal receiver, the wireless signal receiver transmits the data signal to a data collector, and the data collector transmits the data signal to an analysis processor; and d, the analysis processor carries out judgment according to the accessed starting and stopping signals of the generator. According to the invention, a traditional contact type power supply mode is converted into a non-contact type power supply mode, the electric energy transmission stability and the signal transmission quality are greatly improved, and the operation safety and reliability of the generator can be effectively guaranteed.

Description

technical field [0001] The invention relates to the technical field of hydraulic generator operation state monitoring, in particular to a wireless power supply and signal transmission method for a hydraulic generator rotor monitoring system. Background technique [0002] With the increasing demand for the construction of smart power plants, real-time monitoring of the temperature of the rotor windings of hydro-generators is very urgent, but how to supply power to the monitoring system of the rotating parts of hydro-generators has always been a difficult point. The existing technology is to use conductive slip rings as data and power transmission devices. However, the traditional conductive slip rings with electric brushes will cause problems such as frictional heating, deformation of the brush head, and wear of the slip ring and carbon brush materials during use. [0003] The carbon powder produced by carbon brush wear will pollute the environment. At the same time, it will ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J50/12H02J50/40H02J50/70H02K11/35H02K11/20
CPCH02J50/12H02J50/402H02J50/70H02K11/35H02K11/20
Inventor 陈珏良铎林刘云平周军长万慧明张猛
Owner DONGFANG ELECTRIC MACHINERY