CN106208094A - A kind of reactive power compensator signal pickup assembly - Google Patents
A kind of reactive power compensator signal pickup assembly Download PDFInfo
- Publication number
- CN106208094A CN106208094A CN201610533968.XA CN201610533968A CN106208094A CN 106208094 A CN106208094 A CN 106208094A CN 201610533968 A CN201610533968 A CN 201610533968A CN 106208094 A CN106208094 A CN 106208094A
- Authority
- CN
- China
- Prior art keywords
- outfan
- resistance
- operational amplifier
- amplifier
- reactive power
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Amplifiers (AREA)
Abstract
The invention discloses a kind of reactive power compensator signal pickup assembly, including voltage transformer, current transformer, amplifier, wave filter and signal adjusting module, the outfan of voltage transformer summation current transformer connects the input of amplifier, the outfan of amplifier is connected to the input of wave filter, the outfan of wave filter is connected to the input of signal adjusting module, the outfan of signal adjusting module is connected on the controller of reactive power compensator, current signal and voltage signal can be gathered simultaneously, and the signal after gathering is by amplifying, it is transported to after filtering in controller, but also it is provided with a reference source, this makes it possible to the signal so that gathering more accurate, and gather effective.
Description
Technical field
The present invention relates to power supply unit technical field, particularly to a kind of reactive power compensator signal pickup assembly.
Background technology
Carry out transformation and upgrade energetically along with electrical network, the quality of power supply is required more and more higher, directly along with at electrical network by electrical network
Middle high-volume installs reactive power compensator.The use of reactive power compensator provides power supply quality, saves the usage charges of user
With.After reactive power compensator needs to process in the information gathering in electrical network to processor, processor controls capacitor again
The switching of group.At present, existing harvester gathers that signal is not accurate enough directly affects reactive power compensator compensation work, gives and supplies
Electricity equipment damages.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of signal reactive power compensator signals collecting accurately that gathers and fills
Put.
In order to solve above-mentioned technical problem, the technical scheme is that a kind of reactive power compensator signal pickup assembly,
Including voltage transformer, current transformer, amplifier, wave filter and signal adjusting module, described voltage transformer and electric current are mutual
The outfan of sensor connects the input of described amplifier, and the outfan of described amplifier is connected to the input of described wave filter
End, the outfan of described wave filter is connected to the input of described signal adjusting module, the outfan of described signal adjusting module
It is connected on the controller of reactive power compensator.
Further, Transient Suppression Diode T, described transient state it are provided with between described voltage transformer and described amplifier
One end of suppression diode T is connected to an outfan of described voltage transformer, the other end of described Transient Suppression Diode T
It is connected to another outfan of described voltage transformer.
Further, described voltage transformer and electrical network junction are in series with resistance R11.
Further, two outfans of described voltage transformer connect the inverting input and just of described amplifier respectively
Phase input, the inverting input of described amplifier and normal phase input end and two outfan connecting lines of described voltage transformer
On be in series with resistance, the inverting input of described amplifier and normal phase input end connect two outputs of described current transformer
End, the outfan of described amplifier is connected to the inverting input of described amplifier by resistance R10.
Further, described wave filter includes the first operational amplifier, the normal phase input end of described first operational amplifier
Be in series with resistance R1 and resistance R2, the outfan of described first operational amplifier by capacitor C1 be connected to described resistance R1 and
Between resistance R2, the inverting input of described first operational amplifier is connected to the outfan of described first operational amplifier, institute
State the normal phase input end of the first operational amplifier by capacitor C2 ground connection.
Further, described Signal-regulated kinase includes the second operational amplifier and the 3rd operational amplifier, described second
The outfan of operational amplifier is connected in series to the inverting input of described 3rd operational amplifier, described second computing by resistance R7
The inverting input of amplifier connects a reference source and the outfan of described wave filter, the outfan of described second operational amplifier
Being connected to its inverting input by resistance R6, the normal phase input end of described second operational amplifier passes through resistance R5 ground connection, institute
The outfan stating the 3rd operational amplifier is connected to its inverting input, the positive of described 3rd operational amplifier by resistance R9
Input passes through resistance R8 ground connection, and the signal input circuit of the inverting input of described second operational amplifier connects resistance
R3, described reference source circuit connects and has resistance R4.
Use having the beneficial effect that of obtaining of the technique scheme present invention can gather current signal and voltage letter simultaneously
Number, and the signal after gathering is by being transported in controller after amplifying, filtering, but also it is provided with a reference source, thus can
Enough make the signal gathered more accurate, and gather effective.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, also may be used
To obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of reactive power compensator signal pickup assembly of the present invention.
In figure: 1-current transformer, 2-voltage transformer, 3-amplifier, 4-wave filter, 5-signal adjusting module, 6-
One operational amplifier, 7-the second operational amplifier, 8-the 3rd operational amplifier, 9-a reference source.
Detailed description of the invention
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described further.At this it should be noted that for
The explanation of these embodiments is adapted to assist in and understands the present invention, but is not intended that limitation of the invention.Additionally, it is disclosed below
As long as each embodiment of the present invention in involved technical characteristic do not constitute conflict each other and just can be mutually combined.
In conjunction with accompanying drawing 1, the present invention is further described, makes person of ordinary skill in the field preferably implement the present invention,
Embodiment of the present invention one reactive power compensator signal pickup assembly, including current transformer 1, voltage transformer 2, amplifier 3,
Wave filter 4 and signal adjusting module 5, the outfan of voltage transformer 2 summation current transformer 1 connects the input of amplifier 3, puts
The outfan of big device 3 is connected to the input of wave filter 4, and the outfan of wave filter 4 is connected to the input of signal adjusting module 5
End, the outfan of signal adjusting module 5 is connected on the controller of reactive power compensator.
Embodiment of the present invention voltage transformer 2 and electrical network junction are in series with resistance R11.Voltage transformer 2 and amplifier 3
Between be provided with Transient Suppression Diode T, one end of Transient Suppression Diode T is connected to an outfan of voltage transformer 2,
The other end of Transient Suppression Diode T is connected to another outfan of voltage transformer 2；Transient Suppression Diode T can prevent
The impact of the most extraneous big voltage, is used for absorbing the energy of dash current.Two outfans of voltage transformer 2 connect amplification respectively
The inverting input of device 3 and normal phase input end, the inverting input of amplifier 3 and normal phase input end and the two of voltage transformer 2
It is in series with resistance, the inverting input of amplifier 3 and normal phase input end on individual outfan connecting line and connects the two of current transformer 1
Individual outfan, the outfan of amplifier 3 is connected to the inverting input of amplifier 3 by resistance R10.By voltage transformer 1
It is sampled into the signal of needs, by amplification module 2, signal is amplified, is input to subsequent process.
Embodiment of the present invention wave filter 4 includes the first operational amplifier 6, the normal phase input end string of the first operational amplifier 6
Be associated with resistance R1 and resistance R2, the outfan of the first operational amplifier 6 by capacitor C1 be connected to resistance R1 and resistance R2 it
Between, the inverting input of the first operational amplifier 6 is connected to the outfan of the first operational amplifier 6, the first operational amplifier 6
Normal phase input end passes through capacitor C2 ground connection.
Embodiment of the present invention Signal-regulated kinase 5 includes the second operational amplifier 7 and the 3rd operational amplifier 8, the second fortune
The outfan calculating amplifier 7 is connected in series to the inverting input of the 3rd operational amplifier 8, the second operational amplifier 7 by resistance R7
Inverting input connect have a reference source 9 and the outfan of wave filter 4, the outfan of the second operational amplifier 7 pass through resistance R6
Being connected to its inverting input, the normal phase input end of the second operational amplifier 7 passes through resistance R5 ground connection, the 3rd operational amplifier 8
Outfan be connected to its inverting input by resistance R9, the normal phase input end of the 3rd operational amplifier 8 is connect by resistance R8
Ground, the signal input circuit of the inverting input of the second operational amplifier 7 connects and has resistance R3, a reference source 9 circuit connects
There is resistance R4.
Above in association with accompanying drawing, embodiments of the present invention are explained in detail, but the invention is not restricted to described enforcement
Mode.For a person skilled in the art, in the case of without departing from the principle of the invention and spirit, to these embodiments
Carry out multiple change, revise, replace and modification, still fall within protection scope of the present invention.
Claims (6)
1. a reactive power compensator signal pickup assembly, it is characterised in that: include voltage transformer, current transformer, amplification
Device, wave filter and signal adjusting module, the outfan of described voltage transformer summation current transformer connects the defeated of described amplifier
Entering end, the outfan of described amplifier is connected to the input of described wave filter, and the outfan of described wave filter is connected to described
The input of signal adjusting module, the outfan of described signal adjusting module is connected on the controller of reactive power compensator.
Reactive power compensator signal pickup assembly the most according to claim 1, it is characterised in that described voltage transformer and institute
Stating and be provided with Transient Suppression Diode T between amplifier, one end of described Transient Suppression Diode T is connected to described mutual induction of voltage
One outfan of device, the other end of described Transient Suppression Diode T is connected to another outfan of described voltage transformer.
Reactive power compensator voltage collecting device the most according to claim 2, it is characterised in that: described voltage transformer and electricity
Net junction is in series with resistance R11.
Reactive power compensator voltage collecting device the most according to claim 3, it is characterised in that: the two of described voltage transformer
Individual outfan connects inverting input and the normal phase input end of described amplifier respectively, the inverting input of described amplifier and just
Phase input is in series with resistance, the inverting input of described amplifier on two outfan connecting lines of described voltage transformer
With two outfans that normal phase input end connects described current transformer, the outfan of described amplifier is connected by resistance R10
Inverting input to described amplifier.
Reactive power compensator voltage collecting device the most according to claim 3, it is characterised in that: described wave filter includes first
Operational amplifier, the normal phase input end of described first operational amplifier is in series with resistance R1 and resistance R2, and described first computing is put
The outfan of big device is connected between described resistance R1 and resistance R2 by capacitor C1, described first operational amplifier anti-phase
Input is connected to the outfan of described first operational amplifier, and the normal phase input end of described first operational amplifier passes through electric capacity
Device C2 ground connection.
Reactive power compensator voltage collecting device the most according to claim 3, it is characterised in that: described Signal-regulated kinase bag
Including the second operational amplifier and the 3rd operational amplifier, the outfan of described second operational amplifier is connected in series to institute by resistance R7
Stating the inverting input of the 3rd operational amplifier, the inverting input of described second operational amplifier connects a reference source and described
The outfan of wave filter, the outfan of described second operational amplifier is connected to its inverting input by resistance R6, and described
The normal phase input end of two operational amplifiers passes through resistance R5 ground connection, and the outfan of described 3rd operational amplifier is by resistance R9 even
Receiving its inverting input, the normal phase input end of described 3rd operational amplifier passes through resistance R8 ground connection, and described second computing is put
Connecting on the signal input circuit of the inverting input of big device and have resistance R3, described reference source circuit connects resistance R4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610533968.XA CN106208094A (en) | 2016-07-07 | 2016-07-07 | A kind of reactive power compensator signal pickup assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610533968.XA CN106208094A (en) | 2016-07-07 | 2016-07-07 | A kind of reactive power compensator signal pickup assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106208094A true CN106208094A (en) | 2016-12-07 |
Family
ID=57473102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610533968.XA Pending CN106208094A (en) | 2016-07-07 | 2016-07-07 | A kind of reactive power compensator signal pickup assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106208094A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108872782A (en) * | 2018-05-18 | 2018-11-23 | 江苏伊莱尔电力科技有限公司 | A kind of mains by harmonics on-line measuring device and method |
| CN113906660A (en) * | 2019-04-17 | 2022-01-07 | Em考尔泰克公司 | Arrangements for compensating for voltage or current |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101794682A (en) * | 2010-02-02 | 2010-08-04 | 浙江南瑞科技有限公司 | Intelligent controller of frame circuit breaker |
| CN102288819A (en) * | 2011-08-18 | 2011-12-21 | 东北大学 | FPGA (field programmable gate array)-based power harmonic analyzer |
| CN102856920A (en) * | 2012-09-20 | 2013-01-02 | 金陵科技学院 | Three-phase unbalanced load compensation device and method |
| CN102904492A (en) * | 2011-07-28 | 2013-01-30 | 万洲电气股份有限公司 | Graded frequency conversion stepless voltage regulating soft starting device based on non-speed sensor |
| CN203243056U (en) * | 2013-05-30 | 2013-10-16 | 广东电网公司江门供电局 | High/middle-voltage reactive compensation composite structure |
-
2016
- 2016-07-07 CN CN201610533968.XA patent/CN106208094A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101794682A (en) * | 2010-02-02 | 2010-08-04 | 浙江南瑞科技有限公司 | Intelligent controller of frame circuit breaker |
| CN102904492A (en) * | 2011-07-28 | 2013-01-30 | 万洲电气股份有限公司 | Graded frequency conversion stepless voltage regulating soft starting device based on non-speed sensor |
| CN102288819A (en) * | 2011-08-18 | 2011-12-21 | 东北大学 | FPGA (field programmable gate array)-based power harmonic analyzer |
| CN102856920A (en) * | 2012-09-20 | 2013-01-02 | 金陵科技学院 | Three-phase unbalanced load compensation device and method |
| CN203243056U (en) * | 2013-05-30 | 2013-10-16 | 广东电网公司江门供电局 | High/middle-voltage reactive compensation composite structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108872782A (en) * | 2018-05-18 | 2018-11-23 | 江苏伊莱尔电力科技有限公司 | A kind of mains by harmonics on-line measuring device and method |
| CN113906660A (en) * | 2019-04-17 | 2022-01-07 | Em考尔泰克公司 | Arrangements for compensating for voltage or current |
| CN113906660B (en) * | 2019-04-17 | 2024-05-07 | Em考尔泰克公司 | Arrangements for compensating voltage or current |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161207 |