CN205622323U - Electric power monitoring device - Google Patents
Electric power monitoring device Download PDFInfo
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- CN205622323U CN205622323U CN201620383112.4U CN201620383112U CN205622323U CN 205622323 U CN205622323 U CN 205622323U CN 201620383112 U CN201620383112 U CN 201620383112U CN 205622323 U CN205622323 U CN 205622323U
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Abstract
The utility model belongs to electric power control field relates to an electric power monitoring device. The device includes: high -low pressure translation unit steps down to keep apart to the voltage signal of signal detection source direct output and current signal through voltage sensor and current sensor and handles, the signal conditioning unit, with high -low pressure translation unit's output is connected the back and is taked care of low -voltage, undercurrent signal after the high -low pressure conversion, the data acquisition unit, with the output of signal conditioning unit is connected, including 16 AD synchronous sampling modules in the passageway with 16 the control transmission module that position AD synchronous sampling module is connected, through 16 AD synchronous sampling modules with the signal conditioning unit connection, computer processing unit is connected with the control transmission module of data acquisition unit. The utility model discloses continuous monitor and record are carried out to voltage, electric current, frequency to the crucial observation station of regional power grid, can detect this region power grid operation basic state and load condition.
Description
Technical field
This utility model belongs to power monitoring preparation field, particularly relates to a kind of electric force monitoring apparatus.
Background technology
A traditional problem is produced, that is, the quality of power supply along with the birth of power industry.The most economic society
Human being's production and life activity are affected the most obvious by the development quality of power supply of meeting.
Generation Side, the generation of electricity by new energy technology development with wind-power electricity generation, solar electrical energy generation as representative is swift and violent, money
Material display, to this year by the end of September, national grid new-energy grid-connected installs 1.4 hundred million kilowatts, and wherein wind-powered electricity generation approaches
Hundred million grades of critical points, reach 99,970,000 kilowatts, and solar electrical energy generation installation then rapidly increases to 32,820,000 kilowatts；Accumulative
Dissolve wind light generation 151,000,000,000 kilowatt hour, increase by 30% on a year-on-year basis.Predict simultaneously, the year two thousand twenty China wind-powered electricity generation,
Solar electrical energy generation installation will respectively reach 2.4 hundred million, 1.5 hundred million kilowatts.But Wind turbines generating is uncertain
Property and uncontrollability make the grid-connected of large-scale wind power unit bring busbar voltage out-of-limit, electric to the voltage of system
The series of problems such as net voltage fluctuation and flicker.New-energy grid-connected is the most convex on Power Quality in Regional Power Grid impact
Aobvious；User side, electric railway, the development of metallurgical industry chemical industry, a large amount of power electronic equipments and non-
The extensive application of linear device, non-linear (harmonic wave), asymmetric (negative phase-sequence) in the electrical network made and fluctuation
Property be on the rise, deteriorate the quality of power supply；On the other hand, a large amount of precision instrument, electric energy in new high-tech industry
A large amount of uses of Mass sen-sitivity equipment, propose higher requirement to the quality of power supply.Generation current side, user
Side and load center transformer station are respectively mounted reactive power compensation device and come stabilisation systems voltage, improvement system not
Balance, raising load power factor.Load center transformer station realizes frequently with switching capacitance compensation device
System voltage is stable, wind power plant commonly used Static Type Dynamic Reactive Compensation Device (static var
Compensatory is called for short SVC) meet and network electric energy quality requirement.Switched capacitor is that hysteresis quality makes up
Means, need to be investigated for solving the serious quality of power supply deterioration problem effect of burst, and the SVC of Generation Side
Equipment is to use for reference iron and steel, the reactive power compensation means of colliery industry, and it is in field of new energy generation and new
Compensation effect in the grid-connected huge regional power grid of the energy still needs to checking.
Nowadays, various reactive power compensation devices have become as guarantee subscriber equipment economical operation, reduce enterprise
Production cost；Support area power network safety operation, reduces line loss, extends transmission facility service life；
Promote electricity power enterprise's quality of power supply so that it is meet important means of grid-connected requirement.Idle on market
Compensation device is of a great variety, and the type device combines Power Electronic Technique, control theory and computer disposal
Technology, for guaranteeing the optimization of compensation effect, it is to be appreciated that the response characteristic of reactive power compensation device and
Improvement situation to the quality of power supply, selects most suitable reactive power compensation dress in combination with regional power grid characteristic
Put and propose reactive power compensation scheme.
Investigation monitored area electrical network, finds generation of electricity by new energy field primary substation and iron and steel enterprise user change in net
Power station uses static passive compensation device (static var compensator is called for short SVC) to regulate idle
Power meets power grid enterprises and the requirement to the quality of power supply of the production equipment, general many employing TCR types and MCR
Type two types；Network load Central Substations low voltage side uses machinery switched capacitor (MSC) to adjust
Whole reactive power；Voltage levels (220kV) PPC (points of common connection) transformer station of place and with electrification
The transformer station of rail traction station docking is fitted with TCR type static passive compensation device, but because occurring after putting into operation
Protection misoperation and be forced excision and disable.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of electric force monitoring apparatus, to regional power grid
The voltage of key observation point, electric current, frequency are continuously monitored and record, it is possible to run this regional power grid
Basic status and load condition detect.
This utility model is achieved in that a kind of electric force monitoring apparatus, and this device includes:
High-low pressure converting unit, is directly exported signal detection source by voltage sensor and current sensor
Voltage signal and current signal carry out blood pressure lowering isolation processing；
Signal condition unit, changes through high-low pressure after being connected with the outfan of described high-low pressure converting unit
After low-voltage, small area analysis signal nurses one's health；
Data acquisition unit, is connected with the outfan of described signal condition unit, including 16 A/D of passage
The control transport module that synchronous acquisition module is connected with described 16 A/D synchronous acquisition modules；By 16
Position A/D synchronous acquisition module is connected with described signal condition unit；
Computer processing unit, is connected with the control transport module of data acquisition unit.
Further, described high-low pressure converting unit includes two-way, and a road includes current sensor and the first electricity
Pressure sensor, and being connected containing current output terminal of signal detection source, is used for gathering current signal and voltage signal；
Another road includes the second voltage sensor and pincerlike current probe, with exporting without electric current of signal detection source
End connects, and gathers voltage signal and current signal simultaneously.
Further, signal condition unit includes that sampling resistor is connected with current sensor, described sampling resistor
Successively current signal filter circuit, filter DC component circuit and multistage amplifier circuit after export to data acquisition
Collection unit；Signal condition unit also includes that voltage signal filter circuit is connected to the first voltage sensor and
Two voltage sensors, and include that multistage amplifier circuit is connected to pincerlike current probe, by pincerlike current probe
Electric current exports after being directly over amplifying.
Further, described control transport module is that FPGA+MCU controls transport module.
This utility model compared with prior art, has the beneficial effects that:
This utility model be arranged on communication system of power grids net build test point and concentrator station data transmission route by, by right
The voltage in signal detection source and electric current are acquired and pass through the two paths of signals process of signal condition unit to not
With the path that gathers carry out different process, this utility model is to the voltage of regional power grid key observation point, electricity
Stream, frequency are continuously monitored and record, it is possible to this regional power grid is run basic status and load condition is entered
Row detection.
Accompanying drawing explanation
Fig. 1 is the apparatus module block diagram that this utility model embodiment provides.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing
And embodiment, this utility model is further elaborated.Should be appreciated that described herein specifically
Embodiment, only in order to explain this utility model, is not used to limit this utility model.
Seeing Fig. 1, a kind of electric force monitoring apparatus, this device includes: high-low pressure converting unit, passes through voltage
Voltage signal and current signal that signal detection source is directly exported by sensor and current sensor drop
Pressure isolation processing；Signal condition unit, to through too high after being connected with the outfan of described high-low pressure converting unit
Low-voltage, small area analysis signal after low pressure conversion are nursed one's health；Data acquisition unit, with described signal condition
The outfan of unit connects, Tong Bu with described 16 A/D including 16 A/D synchronous acquisition modules of passage
The control transport module that acquisition module connects；By 16 A/D synchronous acquisition modules and described signal condition list
Unit connects；Computer processing unit, is connected with the control transport module of data acquisition unit.
And high-low pressure converting unit includes two-way, a road includes current sensor and the first voltage sensor, with
Connecting containing current output terminal of signal detection source, it is used for gathering current signal and voltage signal；Another road includes
Second voltage sensor and pincerlike current probe, and being connected without current output terminal of signal detection source, together
Time gather voltage signal and current signal.
Signal condition unit includes that sampling resistor is connected with current sensor, and described sampling resistor electric current successively is believed
Number filter circuit, filter DC component circuit and multistage amplifier circuit after export to data acquisition unit；Letter
Number conditioning unit also includes that voltage signal filter circuit is connected to the first voltage sensor and the second voltage sensor
Device, and include that multistage amplifier circuit is connected to pincerlike current probe, by the direct warp of electric current of pincerlike current probe
Export after crossing amplification, its Main Function be the signals such as measured voltage, electric current be filtered, amplify,
Process every straight, protection etc. so that the voltage of output, electric current meet the input requirements of data acquisition card signal,
Avoid damaging data collecting card.
In a preferred embodiment, controlling transport module is that FPGA+MCU controls transport module.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model,
All any amendment, equivalent and improvement etc. made within spirit of the present utility model and principle, all should
Within being included in protection domain of the present utility model.
Claims (4)
1. an electric force monitoring apparatus, it is characterised in that this device includes:
High-low pressure converting unit, is directly exported signal detection source by voltage sensor and current sensor
Voltage signal and current signal carry out blood pressure lowering isolation processing；
Signal condition unit, changes through high-low pressure after being connected with the outfan of described high-low pressure converting unit
After low-voltage, small area analysis signal nurses one's health；
Data acquisition unit, is connected with the outfan of described signal condition unit, including 16 A/D of passage
The control transport module that synchronous acquisition module is connected with described 16 A/D synchronous acquisition modules；By 16
Position A/D synchronous acquisition module is connected with described signal condition unit；
Computer processing unit, is connected with the control transport module of data acquisition unit.
2. electric force monitoring apparatus as claimed in claim 1, it is characterised in that described high-low pressure converting unit
Including two-way, a road includes current sensor and the first voltage sensor, defeated containing electric current with signal detection source
Go out end to connect, be used for gathering current signal and voltage signal；Another road includes the second voltage sensor and pincers
Shape current probe, with being connected without current output terminal of signal detection source, simultaneously collection voltage signal and electric current
Signal.
3. electric force monitoring apparatus as claimed in claim 2, it is characterised in that signal condition unit includes adopting
Sample resistance is connected with current sensor, described sampling resistor current signal filter circuit successively, filters direct current and divides
Export to data acquisition unit after amount circuit and multistage amplifier circuit；Signal condition unit also includes that voltage is believed
Number filter circuit is connected to the first voltage sensor and the second voltage sensor, and includes multistage amplifier circuit
It is connected to pincerlike current probe, exports after being directly over amplifying by the electric current of pincerlike current probe.
4. electric force monitoring apparatus as claimed in claim 1, it is characterised in that described control transport module is
FPGA+MCU controls transport module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620383112.4U CN205622323U (en) | 2016-04-29 | 2016-04-29 | Electric power monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620383112.4U CN205622323U (en) | 2016-04-29 | 2016-04-29 | Electric power monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205622323U true CN205622323U (en) | 2016-10-05 |
Family
ID=57026407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620383112.4U Expired - Fee Related CN205622323U (en) | 2016-04-29 | 2016-04-29 | Electric power monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205622323U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109100543A (en) * | 2018-08-20 | 2018-12-28 | 安徽国锦电力工程有限公司 | Intelligent ehv power transmission engineering detecting equipment |
| CN109738684A (en) * | 2019-02-14 | 2019-05-10 | 浙江中控太阳能技术有限公司 | The current detection module and electric current detecting method of tower-type solar thermal power generating system |
-
2016
- 2016-04-29 CN CN201620383112.4U patent/CN205622323U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109100543A (en) * | 2018-08-20 | 2018-12-28 | 安徽国锦电力工程有限公司 | Intelligent ehv power transmission engineering detecting equipment |
| CN109738684A (en) * | 2019-02-14 | 2019-05-10 | 浙江中控太阳能技术有限公司 | The current detection module and electric current detecting method of tower-type solar thermal power generating system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20161005 Termination date: 20180429 |