CN206164080U - Microcomputer harmonic elimination device - Google Patents
Microcomputer harmonic elimination device Download PDFInfo
- Publication number
- CN206164080U CN206164080U CN201621167546.7U CN201621167546U CN206164080U CN 206164080 U CN206164080 U CN 206164080U CN 201621167546 U CN201621167546 U CN 201621167546U CN 206164080 U CN206164080 U CN 206164080U
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- module
- microcomputer
- resonance
- harmonic elimination
- elimination device
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Abstract
The utility model discloses a microcomputer harmonic elimination device, including ARM computer processing module, opening voltage acquisition module, flash storage module, RTC clock module, high -power damping resistance module, audio alert module, liquid crystal display module, switch quantity output unit module, trouble information print module, 485 communication module and voltage acquisition 0, compare with voltage acquisition 1, the utility model discloses an increased piezoresistive element, this component is real -time and connect at voltage transformer opening voltage both ends, presents high configuration when system's normal operating, and piezoresistive element can switch on in the time in the nanosecond level when there is the resonance production in the system to destroy PT ferroresonance's production condition. Reach the real -time online purpose of eliminating operation in -process transient resonance, greatly reduced the possibility that resonance produced.
Description
Technical field
The utility model is related to harmonic elimination apparatus technical field, specially a kind of microcomputer harmonic elimination device.
Background technology
In China 35KV and following middle pressure power supply-distribution system, there is electricity due to ferromagnetic resonance in power department and user often
Pressure transformer burns the serious accident of even blast.The method for solving ferromagnetic resonance at present is to install a resonance eliminator or secondary additional
Microcomputer resonance eliminator.PT neutral points can be made after one time resonance eliminator is installed additional for semi-insulating structure, to residual voltage and three-phase phase voltage
Measurement also produces impact, so using being subject to certain restrictions.And the secondary microcomputer harmonic elimination device on market presently, there are action
Speed is slow, resonant frequency judge it is inaccurate, the problems such as can not very well distinguish resonance and earth fault, there is no failure wave-recording, have impact on
It eliminates the effect of ferromagnetic resonance.
Utility model content
The purpose of this utility model is a kind of microcomputer harmonic elimination device, it is intended to for eliminating the iron of system fast and accurately
Magnetic resonance, protects voltage transformer and its fuse not to be burned, and does not affect the original operation conditions of voltage transformer, possesses event
Barrier record ripple printing function, police instruction can be made to overvoltage, single-phase earthing, to solve the problems, such as background technology in refer to.
For achieving the above object, the utility model provides following technical scheme：
A kind of microcomputer harmonic elimination device, including ARM MICROCOMPUTER PROCESSING modules, opening voltage acquisition module, Flash memory modules,
RTC clock module, high-power damping resistance module, voice alarm module, LCD MODULE, switch amount output unit module,
Fault message print module, 485 communication modules and power module.
Used as the utility model further technical scheme, a kind of microcomputer harmonic elimination device is also gathered including three-phase voltage
Module, three-phase voltage acquisition module is connected with ARM MICROCOMPUTER PROCESSING modules.
Used as the utility model further technical scheme, a kind of microcomputer harmonic elimination device also includes failure wave-recording mould
Block, failure wave-recording module is connected with ARM MICROCOMPUTER PROCESSING modules.
Compared with prior art, by increased piezoresistive element, the element is attempted by real time voltage to the utility model
Transformer opening voltage two ends, high configuration are presented when system is normally run, the piezoresistive element when system has resonance to produce
Can turn in nsec, so as to destroy the Production conditions of PT ferromagnetic resonances.Reach real-time online elimination to run
The purpose of transient resonance in journey, significantly reduces the possibility of resonance generation.As pressure cell fails that PT generations are completely eliminated
Ferromagnetic resonance, then moment start high-power harmonic elimination element and eliminated.And ripple printing function can be recorded with real time fail, be event
Further analysis and judgement after barrier provides good foundation.
Description of the drawings
Fig. 1 is the modular structure schematic diagram of the utility model microcomputer harmonic elimination device.
Marginal data：
100- microcomputer harmonic elimination devices, 10-ARM MICROCOMPUTER PROCESSING modules, 11- opening voltage acquisition modules, 12- three-phase voltages are adopted
Collection module, 13- piezo-resistance modules, 14-Flash memory modules, 15-RTC clock modules, 16- failure wave-recording modules, 17- are big
Power damping resistive module, 18- voice alarm modules, 19- LCD MODULEs, 110- switch amount output unit modules, 111-
Fault message print module, 112-485 communication modules, 113- power modules.
ARM MICROCOMPUTER PROCESSINGs module is made up of STM32F103ZET6 control chips, electrification reset circuit, pierce circuit etc..
Opening voltage acquisition module and three-phase voltage acquisition module are by voltage transformer HPT205 and operational amplifier LM358
Interlock circuit is constituted, and HPT205 conversion accuracies can reach 0.1%.
Piezo-resistance module is mainly using the ZnO resistors element composition that C-V characteristic is good.
Flash memory modules are made up of W25Q64 flash chips and peripheral circuit.
RTC clock module adopts PCF8583 chips, regularly high with accuracy of timekeeping.
Switch amount output unit module is made up of triggers circuit, control circuit, synchronous circuit.Control circuit using photoelectricity every
It is stable from technology, it is anti-interference strong.
Communication module is constituted using 6N137 rapid light couplings and 65LBC184 chips, and conducting speed is fast, up to 10M.
Human-computer interaction interface adopts touch liquid crystal display.
Power module is used cooperatively using switching power unit and LM2576 chips.
Specific embodiment
The technical scheme of this patent is described in more detail with reference to specific embodiment.
Refer to Fig. 1, a kind of microcomputer harmonic elimination device 100, including ARM MICROCOMPUTER PROCESSINGs module 10, opening voltage acquisition module
11st, three-phase voltage acquisition module 12, piezo-resistance module 13, Flash memory modules 14, RTC clock module 15, failure wave-recording
Module 16, high-power damping resistance module 17, voice alarm module 18, LCD MODULE 19, switch amount output unit module
110th, fault message print module 111,485 communication modules 112 and power module 113；
Opening voltage acquisition module 11, three-phase voltage acquisition module 12, piezo-resistance module 13, Flash memory modules
14th, RTC clock module 15, failure wave-recording module 16, high-power damping resistance module 17, voice alarm module 18, liquid crystal display
Module 19, switch amount output unit module 110, fault message print module 111,485 communication modules 112,113 points of power module
It is not connected with ARM MICROCOMPUTER PROCESSINGs module 10；
Opening voltage acquisition module 11 is transmitted to ARM microcomputers by collection voltages transformer open delta voltage signal
Processing module 10 is analyzed calculating, and judgement is earth fault or resonance, and the frequency of resonance is the information such as how many, if humorous
Shake failure, piezoresistive element 13 can be turned in nsec, so as to destroy the Production conditions of PT ferromagnetic resonances, reached
Real-time online eliminates the purpose of transient resonance in running, significantly reduces the possibility of resonance generation；Such as pressure-sensitive unit
Part 13 fails the ferromagnetic resonance that PT generations are completely eliminated, then the momentary start switch amount output unit mould of ARM MICROCOMPUTER PROCESSINGs module 10
Block 110, starts high-power damping resistance 17 and is eliminated；Then carry out fault message by LCD MODULE 19 to show and report
It is alert；
Collection voltages transformer A, B, C three-phase voltage signal of three-phase voltage acquisition module 12, is then transmit at ARM microcomputers
Reason module 10, ARM MICROCOMPUTER PROCESSINGs module 10 by collection three-phase voltage acquisition module 12 carry out system voltage size computing and
The judgement of earth fault；
Piezo-resistance module 13 is attempted by real time voltage transformer opening voltage two ends, the pressure-sensitive electricity when system is normally run
Resistance module 18 is presented high configuration, and when system has resonance to produce, piezo-resistance module 18 can be turned in nsec, from
And the Production conditions of destruction PT ferromagnetic resonances, the purpose that real-time online eliminates transient resonance in running is reached, greatly
Reduce the possibility of resonance generation；
Flash memory modules 14 and ARM MICROCOMPUTER PROCESSINGs module 10 connect, and some are needed storage by RM MICROCOMPUTER PROCESSINGs module 10
Data be stored in Flash memory modules 14；Flash memory modules 14 adopt 64M Bits Serial flash memory devices, can record failure
Moment waveform and data, data can be stored 10 years, and power down does not disappear；
RTC clock module 15 provides real time clock data for device, is that failure logging and wave-record chart provide time scale information；
Failure wave-recording module 16 adopts 4K high-speed sampling modules, for fault wave when high speed acquisition resonance and earth fault
Shape, then reaches ARM MICROCOMPUTER PROCESSINGs module 10 by waveform, and ARM MICROCOMPUTER PROCESSINGs module 10 judges current failure type, and by language
Sound alarm module 15 sends corresponding warning message；Simultaneously ARM MICROCOMPUTER PROCESSINGs module 10 sends data to fault message impression block
Block 13 and Flash memory modules 14, by fault waveform and data-printing and storage；
High-power damping resistance module 17 is attempted by voltage transformer open delta by switch amount output unit module 110
Voltage output end；During normal operation, the contact of switch amount output unit module 110 is off, high-power damping resistance mould
Block 17 separates with voltage transformer open delta voltage output end；When system occurs ferromagnetic resonance failure, and piezo-resistance module
13 when cannot eliminate, the intermittent closure in the contact of 10 driving switch amount output unit module of ARM MICROCOMPUTER PROCESSINGs module 110, so as to will
The high-power intermittence of damping resistance module 17 is connected to voltage transformer open delta voltage output end, so as to eliminate ferromagnetic resonance
Failure, but consider voltage transformer safe condition, the general high-power intermittence of damping resistance module 17 will no longer throw after putting into 9 times
Enter；
Language alarm module 18 is used for the voice message and warning of the fault messages such as ground connection and resonance, can remind watch
Member carries out malfunction elimination and process；
LCD MODULE 19 is used for the interaction of man-machine interface, and current operating conditions and parameter can be shown, joins
Number setting, fault message such as shows at the function；
Switch amount output unit module 110 be able to can not be disappeared using the controllable silicon of fast conducting in piezo-resistance module 18
When except resonance failure, quickly high-power damping resistance module 17 is put into into harmonic elimination circuit, then separated rapidly；
Fault message print module 111 is used for the printing function of the fault message waveforms such as resonance and data；
485 communication function modules 112 are connected with ARM MICROCOMPUTER PROCESSINGs module 10, and 485 communication function modules 112 are used to carry out
Long-range Data Transmission；
, using switching power unit and LM2576 chips, output 5V and positive and negative 12V is electric for switching power unit for power module 113
Pressure, LM2576 chips output 3.3V voltages.Power module 113 provides working power for whole microcomputer harmonic elimination device.
The better embodiment of this patent is explained in detail above, but this patent is not limited to above-mentioned embodiment party
Formula, in the ken that one skilled in the relevant art possesses, can be with the premise of without departing from this patent objective
Various changes can be made.
Claims (3)
1. a kind of microcomputer harmonic elimination device, it is characterised in that including ARM MICROCOMPUTER PROCESSING modules（10）, opening voltage acquisition module
（11）, Flash memory modules（14）, RTC clock module（15）, high-power damping resistance module（17）, voice alarm module
（18）, LCD MODULE（19）, switch amount output unit module（110）, fault message print module（111）, 485 communication moulds
Block（112）And power module（113）.
2. a kind of microcomputer harmonic elimination device according to claim 1, it is characterised in that a kind of microcomputer harmonic elimination device also includes
Three-phase voltage acquisition module（12）, three-phase voltage acquisition module（12）With ARM MICROCOMPUTER PROCESSING modules（10）It is connected.
3. a kind of microcomputer harmonic elimination device according to claim 1, it is characterised in that a kind of microcomputer harmonic elimination device also includes
Failure wave-recording module（16）, failure wave-recording module（16）With ARM MICROCOMPUTER PROCESSING modules（10）It is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621167546.7U CN206164080U (en) | 2016-10-26 | 2016-10-26 | Microcomputer harmonic elimination device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621167546.7U CN206164080U (en) | 2016-10-26 | 2016-10-26 | Microcomputer harmonic elimination device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206164080U true CN206164080U (en) | 2017-05-10 |
Family
ID=58655591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621167546.7U Expired - Fee Related CN206164080U (en) | 2016-10-26 | 2016-10-26 | Microcomputer harmonic elimination device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206164080U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107196281A (en) * | 2017-07-01 | 2017-09-22 | 合肥东玖电气有限公司 | A kind of microcomputer harmonic elimination system |
| CN107332220A (en) * | 2017-08-29 | 2017-11-07 | 安徽三和电力技术有限公司 | For microcomputer harmonic elimination device control system |
| CN108667000A (en) * | 2018-05-07 | 2018-10-16 | 中国能源建设集团甘肃省电力设计院有限公司 | A kind of ferromagnetic resonance detection of large-sized photovoltaic power station and restraining device |
-
2016
- 2016-10-26 CN CN201621167546.7U patent/CN206164080U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107196281A (en) * | 2017-07-01 | 2017-09-22 | 合肥东玖电气有限公司 | A kind of microcomputer harmonic elimination system |
| CN107332220A (en) * | 2017-08-29 | 2017-11-07 | 安徽三和电力技术有限公司 | For microcomputer harmonic elimination device control system |
| CN108667000A (en) * | 2018-05-07 | 2018-10-16 | 中国能源建设集团甘肃省电力设计院有限公司 | A kind of ferromagnetic resonance detection of large-sized photovoltaic power station and restraining device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170510 Termination date: 20201026 |