CN206431225U - A kind of generator unit stator parallel branch circulation warning device - Google Patents
A kind of generator unit stator parallel branch circulation warning device Download PDFInfo
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- CN206431225U CN206431225U CN201621054091.8U CN201621054091U CN206431225U CN 206431225 U CN206431225 U CN 206431225U CN 201621054091 U CN201621054091 U CN 201621054091U CN 206431225 U CN206431225 U CN 206431225U
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- module
- control system
- warning device
- bus control
- central processing
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Abstract
A kind of generator unit stator parallel branch circulation warning device, described device includes power module, information acquisition card, bus control system, A/D modular converters, alarm module, display module, seven modules of central processing module；The power module is connected with information acquisition card, bus control system, A/D modular converters, alarm module, display module, central processing module, the bus control system is connected with signal message capture card, A/D modular converters, alarm module, display module, central processing module, and the central processing module is connected with bus control system；The present apparatus information acquisition card is made up of current transformer, collector, filter amplification circuit.The utility model can be in continuous monitoring generator operation parallel branch circulation under generator operating condition, it is to avoid the excessive initiation accident of circulation caused by stator interior failure, while providing reliable data for the on-line monitoring system of motor, and then ensures its safe operation.
Description
Technical field
The utility model is related to generator on-line monitoring technique field, and in particular to a kind of generator unit stator parallel branch ring
Flow warning device.
Background technology
With the continuous expansion continued to develop with synchronous generator single-machine capacity of electric power network technique, people are to synchronous generator
Safe and reliable operation propose higher and higher requirement.Large Synchronous Machine is usually operated at the poor place of environment, and it is led
Structure is wanted to be influenceed for a long time by temperature, stress and adverse circumstances, the continuous aging of stator winding insulation, deformation are so that broken
Damage, finally cause stator winding to occur short trouble.
At present, stator winding inter-turn short circuit is a kind of common destructive very strong failure in synchronous motor, is had become
One of most common power failure of synchronous generator.If such failure once can not be out of service in time and unit carried out by generation
Maintenance, then can also trigger Stator one phase short-circuit failure, two-phase short-circuit fault, stator grounding and other serious electrical faults,
Incalculable damage is brought to unit.Therefore, Stator Winding incipient failure is carried out in time, accurately monitoring
It is significantly with diagnosis.
The content of the invention
The purpose of this utility model is to be to provide a kind of generator unit stator parallel branch circulation warning device.This practicality is new
Stator parallel branch circulation when type continuously can detect generator operation under generator operating condition, finds each of stator in time
Road turn-to-turn short circuit.Have monitoring accuracy high simultaneously, real-time advantage provides reliable number for the on-line monitoring system of motor
According to, and then ensure its safe operation.
The purpose of this utility model is to be to provide generator unit stator parallel branch circulation warning device.It include shell,
Front panel, rear board, power module, information acquisition card, bus control system, A/D modular converters, alarm module, display module,
Seven modules of central processing module.The power module and information acquisition card, bus control system, A/D modular converters, alarm mould
Block, display module, central processing module are connected, the bus control system and signal message capture card, A/D modular converters, report
Alert module, display module, central processing module are connected, and the central processing module is connected with bus control system.The power supply
Module uses independent dual power supply to be powered for this warning device, and described device power supply uses external dc power.Described dress
Put information acquisition card to be made up of current transformer, collector, filter circuit, amplifying circuit, the A/D modular converters are by AD7825
Chip is constituted, and the central processing module is made up of the 80C51 of single-chip microcomputer signal process chip MCS51 series, total line traffic control
System processed is made up of MCP2515-I/SO MCP2515 CAN controller SPI chips SOP-18.
The utility model also has following technical characteristic：
1st, shell front panel as described above is provided with power switch, reset key, display motor and normally runs three-phase ring
Flow fundamental wave and ' standard ' button, the display of triple-frequency harmonics amplitude.Image display can show three phase circulation fundamental waves and three times
Harmonic amplitude.
2nd, shell rear board as described above installs power supply interface, the phase circulation signaling interface of generator three, alarm
Interface.
3rd, power module as described above uses dual power supply, power module circuitry such as accompanying drawing 4, including manual
Valve, TRIAC bidirectional triode thyristor overvoltage protectors, transformer circuit, bridge rectifier, charger current-limiting circuit, battery, unidirectionally
Isolation circuit.Warning device can both be powered using battery, and mains-supplied can be used again, and two kinds of power supplies do not conflict and can ensured
Measurement works long hours in the case of without extraneous power supply.
4th, the utility model as described above can continuously detect each phase circulation of generator under generator operating condition, and
Shi Faxian branches of stator turn-to-turn short circuits, while having, monitoring accuracy is high, and real-time advantage is the on-line monitoring system of motor
Reliable data are provided, and then ensure its safe operation.
Compared with conventional instrument, the utility model also has following gain:
The utility model provides a kind of generator unit stator parallel branch circulation warning device., can in motor operating state
Comprehensively the running status of effective reflection synchronous motor and the various faults information of stator short trouble operation, are synchronous motor
The diagnosis and protection of internal fault provide new technology.Described device is conducive to finding branches of stator turn-to-turn short circuit in time, together
When have monitoring accuracy high, in real time, failure reflects comprehensive advantage, provides and reliably counts for the on-line monitoring system of motor
According to, and then ensure its safe operation.
Brief description of the drawings
Fig. 1 is circuit structure block diagram of the present utility model,
Fig. 2 is front panel schematic diagram of the present utility model,
Fig. 3 is rear board schematic diagram of the present utility model,
Fig. 4 is power module structure figure of the present utility model,
Fig. 5 is current transformer figure of the present utility model.
Embodiment
Embodiment 1
The purpose of this utility model is to be to provide generator unit stator parallel branch circulation warning device.It includes power supply mould
Block, information acquisition card, bus control system, A/D modular converters, alarm module, display module, seven moulds of central processing module
Block.The power module and information acquisition card, bus control system, A/D modular converters, alarm module, display module, centre
Module is managed to be connected, the bus control system and signal message capture card, A/D modular converters, alarm module, display module, in
Processing module is entreated to be connected, the central processing module is connected with bus control system.The power module uses independent dual power supply
Power and powered for this warning device, described device power supply uses external dc power.The present apparatus information acquisition card is by electric current
Transformer, collector, filter circuit, amplifying circuit are constituted, and the A/D modular converters are made up of AD7825 chips, the center
Processing module is made up of the 80C51 of single-chip microcomputer signal process chip MCS51 series, and the bus control system is by | MCP2515-
I/SO MCP2515 CAN controller SPI chips SOP-18 is constituted.
Embodiment 2
Modules are described in detail below：
1st, power module:Electric power source pair of module modules are powered.It uses dual power supply, and power module circuitry is for example attached
Fig. 4, including hand-operated valve, TRIAC bidirectional triode thyristor overvoltage protectors, transformer circuit, bridge rectifier, charger limit
Current circuit, battery, one-way isolation circuit.Warning device can both be powered using battery, and mains-supplied, two kinds of confessions can be used again
Electricity, which does not conflict, can ensure that measurement works long hours in the case of without extraneous power supply.
2nd, bus control system：Bus control system is by | MCP2515-I/SO MCP2515 CAN controllers SPI
Chip SOP-18 is constituted.This system completes to handle information acquisition card, A/D modular converters, alarm module, display module, center
Information between module is exchanged and transmission.
3rd, information acquisition card：Information acquisition card is made up of current transformer, collector, filter circuit, amplifying circuit.This is
The circulation information for collecting current transformer of uniting gives collector, is extracted by filter circuit, amplifying circuit in circulation
Fundamental current and triple harmonic current give bus control system.
4th, A/D modular converters：A/D modular converters are made up of AD7825 chips.Its base for being conveyed bus control system
Ripple electric current and triple harmonic current analog signal are converted into data signal, send central processing module to.
5th, central processing module：Central processing module is made up of the 80C51 of single-chip microcomputer signal process chip MCS51 series.
The various information that it receives and Treatment Analysis bus control system is transmitted, bus control system is sent back to by Treatment Analysis result.
Embodiment 3
Alarm principle, such as accompanying drawing 1：
, will simulation letter after 1. the signal of pair Current Transformer Secondary side such as is amplified, filtered at the processing through information acquisition card
Number feeding bus control system.
2. the 80C51 of single-chip microcomputer signal process chip MCS51 series controls A/D conversion chips by bus control system
Data sampling is carried out, analog quantity is converted into digital quantity.By the method for frequency analysis, the data after conversion are carried out quick
Fourier decomposition, asks for the fundamental current and triple harmonic current in three phase circulations, and the fundamental wave in the phase circulation of gained three is electric
Stream and triple harmonic current relevant parameter are shown over the display.When last comparative analysis generator is normally run fundamental current and
Triple harmonic current reference value, completes the monitoring to generator operation.
Claims (6)
1. a kind of generator unit stator parallel branch circulation warning device；Described device includes power module, information acquisition card, bus
Control system, A/D modular converters, alarm module, display module, seven modules of central processing module；The power module and letter
Cease capture card, bus control system, A/D modular converters, alarm module, display module, central processing module to be connected, the bus
Control system is connected with signal message capture card, A/D modular converters, alarm module, display module, central processing module, described
Central processing module is connected with bus control system；The power module uses independent dual power supply to be supplied for this warning device
Electricity, described device power supply uses external dc power；The information acquisition card of the warning device by current transformer, collector,
Filter circuit, amplifying circuit are constituted, and the A/D modular converters are made up of AD7825 chips, and the central processing module is by monolithic
The 80C51 of machine signal processing chip MCS51 series is constituted, and the bus control system is by | MCP2515-I/SO MCP2515
CAN controller SPI chips SOP-18 is constituted.
2. a kind of generator unit stator parallel branch circulation warning device as claimed in claim 1, it is characterised in that：Power module
Supplied a little for independent dual power supply, including hand-operated valve, TRIAC bidirectional triode thyristor overvoltage protectors, transformer circuit, bridge rectifier
Circuit, charger current-limiting circuit, battery, one-way isolation circuit；Warning device can both be powered using battery, and city can be used again
Electricity power supply, two kinds of power supplies do not conflict.
3. a kind of generator unit stator parallel branch circulation warning device as claimed in claim 1, it is characterised in that：Described information
Capture card is made up of current transformer, collector, filter amplification circuit, and its integrated level is high, gathers information, conditioning information comprehensively,
Accurately.
4. a kind of generator unit stator parallel branch circulation warning device as claimed in claim 1, it is characterised in that：The A/D
Modular converter is made up of AD7825 chips, the A/D modular converters can by circulation efficient information, be transmitted to exactly single-chip microcomputer letter
The central processing module that the 80C51 of number process chip MCS51 series is constituted.
5. a kind of generator unit stator parallel branch circulation warning device as claimed in claim 1, it is characterised in that：The center
Processing module is made up of the 80C51 of single-chip microcomputer signal process chip MCS51 series；The single-chip microcomputer has small volume, structure letter
Single, reliability is high, and control ability is strong, low-voltage, low-power consumption, the advantage of excellent cost performance.
6. a kind of generator unit stator parallel branch circulation warning device as claimed in claim 1, it is characterised in that：The bus
Control system is made up of MCP2515-I/SO MCP2515 CAN controller SPI chips SOP-18；The bus marco
Device SPI chips SOP-18 improves the accuracy and reliability of system, and the environmental suitability run to circuit preferably, has
The system integration initiative of height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621054091.8U CN206431225U (en) | 2016-09-14 | 2016-09-14 | A kind of generator unit stator parallel branch circulation warning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621054091.8U CN206431225U (en) | 2016-09-14 | 2016-09-14 | A kind of generator unit stator parallel branch circulation warning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206431225U true CN206431225U (en) | 2017-08-22 |
Family
ID=59588380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621054091.8U Expired - Fee Related CN206431225U (en) | 2016-09-14 | 2016-09-14 | A kind of generator unit stator parallel branch circulation warning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206431225U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111007429A (en) * | 2019-11-26 | 2020-04-14 | 国网江苏省电力有限公司检修分公司 | ANFIS-based synchronous phase modulator short-circuit fault identification method and system |
-
2016
- 2016-09-14 CN CN201621054091.8U patent/CN206431225U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111007429A (en) * | 2019-11-26 | 2020-04-14 | 国网江苏省电力有限公司检修分公司 | ANFIS-based synchronous phase modulator short-circuit fault identification method and system |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170822 Termination date: 20180914 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |