CN105892539A - Two-wire system electric voltage regulator - Google Patents
Two-wire system electric voltage regulator Download PDFInfo
- Publication number
- CN105892539A CN105892539A CN201610403336.1A CN201610403336A CN105892539A CN 105892539 A CN105892539 A CN 105892539A CN 201610403336 A CN201610403336 A CN 201610403336A CN 105892539 A CN105892539 A CN 105892539A
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- China
- Prior art keywords
- voltage regulator
- diode
- electric voltage
- parallel
- limiting switch
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/12—Regulating voltage or current wherein the variable actually regulated by the final control device is ac
- G05F1/14—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using tap transformers or tap changing inductors as final control devices
- G05F1/147—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using tap transformers or tap changing inductors as final control devices with motor driven tap switch
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
- Emergency Protection Circuit Devices (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
The invention discloses a two-wire system electric voltage regulator. The two-wire system electric voltage regulator is composed of a voltage regulator body, a voltage regulating sheet, a direct-current motor, an upper limiting switch, a lower limiting switch, a first diode and a second diode, and is characterized in that the voltage regulating sheet is arranged on the voltage regulator body and driven by the direct-current motor, and the upper limiting switch and the lower limiting switch are arranged at the upper rotating limit position and the lower rotating limit position of the voltage regulating sheet respectively; the second terminal of the upper limiting switch serves as a first external terminal and is connected with the negative electrode of the second diode in parallel, and the first terminal of the upper limiting switch is connected with the positive electrode of the second diode in parallel and is connected in the first power end of the direct-current motor; the first terminal of the lower limiting switch serves as a second external terminal and is connected with the negative electrode of the first diode in parallel, and the second terminal of the lower limiting switch is connected with the positive electrode of the second diode in parallel and is connected into the second power end of the direct-current motor; the upper limiting switch and the lower limiting switch are both in a normally closed type. The two-wire system electric voltage regulator has the advantages of being simple in structure, small in wiring number, high in reliability, low in cost and the like, the wiring workload can be relieved, the use quantity of PLCI/O interfaces can be reduced, the system stability can be improved, and the cost can be reduced.
Description
Technical field
The present invention relates to a kind of pressure regulator, particularly relate to a kind of pressure regulator using automatically controlled mode.
Background technology
In household electrical appliances properties of product are tested, it is often necessary to use pressure regulator, to test household appliances properties of product situation under different harsh voltage condition.And it is provided that the electric voltage regulator of sinusoidal adjustable voltage, during household electrical appliances product test, it is widely used.Existing variable-frequency power sources, though being provided that sinusoidal adjustable voltage, having electric voltage regulator function, but because of selling at exorbitant prices, failing extensively to apply.
Existing electric voltage regulator, the main mode of its work is to utilize direct current generator to move revolving fragment, regulates secondary output voltage size, in order to prevent direct current generator from rotating more than bound dead point, ad hoc upper limit position switch and lower position switch.This control mode, it usually needs at least 5 external wires, linking corresponding control system could realize, i.e. wherein DC motor power needs 2 wires, and upper limit position switch and lower position switch at least need 3 (can totally ground wire).When test system needs multiple stage pressure regulator, such as N platform electric voltage regulator, this electric voltage regulator controls circuit at least needs 5N root wire, and installation work amount is very big, and system stability is poor, and occupies the I/O interface of more PLC, adds cost.
Summary of the invention
Embodiments of the invention purpose is to provide a kind of two-wire system electric voltage regulator, there is the feature such as simple in construction, few, the high and low cost of reliability of wiring quantity, to alleviate installation work amount, reduce the I/O interface usage amount of PLC, while improving household appliances Performance Test System reliability, reduce correspondingly cost.
For reaching above-mentioned purpose, embodiments of the invention adopt the following technical scheme that
A kind of two-wire system electric voltage regulator, it is made up of pressure regulator body, pressure regulation sheet, direct current generator, upper limit position switch, lower position switch, the first diode, the second diode, it is characterized in that: described pressure regulation sheet is located on pressure regulator body, by DC motor Driver, upper and lower limit bit switch is respectively arranged on the Upper-lower Limit position that pressure regulation sheet rotates；Upper limit position switch the second terminals are as the first external terminal and in parallel with the second diode cathode；Upper limit position switch the first terminals and the second diode cathode are in parallel, are linked into direct current generator the first power end；Lower position switch the first terminals are as the second external terminal and in parallel with the first diode cathode；Lower position switch the second terminals and the first diode cathode are in parallel, are linked into direct current generator second source end；Upper and lower limit bit switch is normally closed type.
As optimization, a kind of two-wire system electric voltage regulator test system, it is characterised in that: it is made up of several two-wire system electric voltage regulator, by the second external terminal of each two-wire system electric voltage regulator, is connected in parallel.
The operation principle of the present invention: for convenience of description, assume, when first power end of direct current generator, second source end are respectively connected to positive and negative electricity, direct current generator rotates forward, rotation amplitude is the biggest, output voltage is the biggest, and original state is: the first external terminal, the second external terminal each lead into positive and negative electricity.In normal range of regulation, direct current generator, can by being normally closed upper limit position switch, lower position switch is powered and is rotated.When pressure regulator reaches the upper limit, now, upper limit position switch action; i.e. become disconnection by Guan Bi, and now the second diode is in cut-off state, unidirectional current; the first power end of direct current generator cannot be imported from the first external terminal, and direct current generator is stopped operating, it is achieved upscale protection.When upscale protection; direct current generator can not rotate forward increase voltage; and can only invert; turn voltage down; now power the first external terminal, the second external terminal each leads into negative, positive electricity, and electric current passes sequentially through lower position switch respectively, the second source end of direct current generator, the first power end, the second diode flow out, and direct current generator inverts; after departing from upper change point, it is then restored to normal range of operation.
Obviously, when test system needs multiple stage electric voltage regulator, during such as N platform electric voltage regulator, the electric voltage regulator that the present invention provides, its external control circuit the most only needs 2N root wire, the minimizing of external wire quantity, not only contributes to the stability of raising system, and can also the control mouth quantity of less peripheral control unit, such as the I/O interface of PLC.Especially, more when electric voltage regulator quantity and different time pressure regulation in the case of, it is also possible to the second external terminal of two-wire system electric voltage regulator that the present invention is provided, it is connected in parallel, now, wire can be saved further, as N platform electric voltage regulator only needs N+1 root wire.
A kind of two-wire system electric voltage regulator that the present invention provides, have employed two-wire system control mode, it is achieved that single motor pressure regulator, by needing external 5 control lines before, becomes the control mode only needing external 2 control lines.Compared with prior art, the present invention, there is the feature such as simple in construction, few, the high and low cost of reliability of wiring quantity, it is possible to effectively alleviate installation work amount, reduce the I/O interface usage amount of PLC, improve system stability, reduce correspondingly cost.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the two-wire system electric voltage regulator schematic diagram in the embodiment of the present invention；
Fig. 2 is the control circuit schematic diagram in the embodiment of the present invention；
Fig. 3 is the control circuit schematic diagram of the two-wire system electric voltage regulator test system in the embodiment of the present invention；
In figure: 10 pressure regulation are put down；M direct current generator；T pressure regulator body；SQ2 upper limit position switch；SQ1 lower position switch；VD1 the first diode；VD2 the second diode.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
A kind of two-wire system electric voltage regulator, it is made up of pressure regulator body T, pressure regulation sheet 10, direct current generator M, upper limit position switch SQ2, lower position switch SQ1, the first diode VD1, the second diode VD2, it is characterized in that: described pressure regulation sheet 10 is located on pressure regulator body T, being driven by direct current generator M, upper limit position switch SQ2, lower position switch SQ1 are respectively arranged on the Upper-lower Limit position that pressure regulation sheet 10 rotates；
After second terminals 22 of upper limit position switch SQ2 are in parallel with the negative pole of the second diode VD2, as the first external terminal；After first terminals 21 of upper limit position switch SQ2 are in parallel with the positive pole of the second diode VD2, it is linked into first power end of direct current generator M；
After first terminals 11 of lower position switch SQ1 are in parallel with the negative pole of the first diode VD1, as the second external terminal；After second terminals 12 of lower position switch SQ1 are in parallel with the positive pole of the first diode VD1, it is linked into the second source end of direct current generator M；Upper limit position switch SQ2, lower position switch SQ1 are normally closed type limit switch.
As it is shown on figure 3, when electric voltage regulator quantity more and different time pressure regulation in the case of, it is also possible to by the second external terminal of multiple two-wire system electric voltage regulator, be connected in parallel, now, wire can be saved further, as N platform electric voltage regulator only needs N+1 root wire.
The above; being only the detailed description of the invention of the present invention, but protection scope of the present invention is not limited thereto, any those familiar with the art is in the technical scope that the invention discloses; change can be readily occurred in or replace, all should contain within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with described scope of the claims.
Claims (1)
1. a two-wire system electric voltage regulator test system, it is made up of several two-wire system electric voltage regulator, it is characterized in that: described two-wire system electric voltage regulator, it is made up of pressure regulator body, pressure regulation sheet, direct current generator, upper limit position switch, lower position switch, the first diode, the second diode, described pressure regulation sheet is located on pressure regulator body, by DC motor Driver, upper and lower limit bit switch is respectively arranged on the Upper-lower Limit position that pressure regulation sheet rotates；Upper limit position switch the second terminals are as the first external terminal and in parallel with the second diode cathode；Upper limit position switch the first terminals and the second diode cathode are in parallel, are linked into direct current generator the first power end；Lower position switch the first terminals are as the second external terminal and in parallel with the first diode cathode；Lower position switch the second terminals and the first diode cathode are in parallel, are linked into direct current generator second source end；Upper and lower limit bit switch is normally closed type；By the second external terminal of described two-wire system electric voltage regulator, it is connected in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610403336.1A CN105892539A (en) | 2015-08-22 | 2015-08-22 | Two-wire system electric voltage regulator |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510522609.XA CN105068588B (en) | 2015-08-22 | 2015-08-22 | A kind of two-wire system electric voltage regulator |
| CN201610403336.1A CN105892539A (en) | 2015-08-22 | 2015-08-22 | Two-wire system electric voltage regulator |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510522609.XA Division CN105068588B (en) | 2015-08-22 | 2015-08-22 | A kind of two-wire system electric voltage regulator |
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| Publication Number | Publication Date |
|---|---|
| CN105892539A true CN105892539A (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510522609.XA Active CN105068588B (en) | 2015-08-22 | 2015-08-22 | A kind of two-wire system electric voltage regulator |
| CN201610403336.1A Pending CN105892539A (en) | 2015-08-22 | 2015-08-22 | Two-wire system electric voltage regulator |
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| CN201510522609.XA Active CN105068588B (en) | 2015-08-22 | 2015-08-22 | A kind of two-wire system electric voltage regulator |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070057652A1 (en) * | 2005-09-14 | 2007-03-15 | Hoffman Gary R | Apparatus and method for monitoring tap positions of load tap changer |
| CN2881741Y (en) * | 2006-02-14 | 2007-03-21 | 天津市百利电气有限公司 | Digital automatic AC constant-current source |
| CN101540581A (en) * | 2008-03-21 | 2009-09-23 | 株式会社电装 | Apparatus for carrying out improved control of rotary machine |
| CN102611252A (en) * | 2012-03-16 | 2012-07-25 | 广州市红鹏直升机遥感科技有限公司 | One-way position limiting switch |
| CN203313101U (en) * | 2013-06-09 | 2013-11-27 | 三科电器集团有限公司 | Voltage regulator motor limiting circuit |
| CN204990052U (en) * | 2015-08-22 | 2016-01-20 | 滁州职业技术学院 | Electronic voltage regulator of two -wire system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88218763U (en) * | 1988-06-15 | 1988-12-28 | 杨庆丰 | Large power high precision ac voltage regulator with hydraulic operating device |
| US5550459A (en) * | 1994-08-08 | 1996-08-27 | Siemens Energy & Automation, Inc. | Tap position determination based on regular impedance characteristics |
| CN100342293C (en) * | 2002-08-30 | 2007-10-10 | 沈阳新松机器人自动化股份有限公司 | Analog AC constant current source |
| JP2004173384A (en) * | 2002-11-19 | 2004-06-17 | Mitsubishi Electric Corp | Automatic voltage regulator |
| CN2606914Y (en) * | 2003-01-22 | 2004-03-17 | 周熙文 | Pole type high power voltage stabilized power source |
-
2015
- 2015-08-22 CN CN201510522609.XA patent/CN105068588B/en active Active
- 2015-08-22 CN CN201610403336.1A patent/CN105892539A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070057652A1 (en) * | 2005-09-14 | 2007-03-15 | Hoffman Gary R | Apparatus and method for monitoring tap positions of load tap changer |
| CN2881741Y (en) * | 2006-02-14 | 2007-03-21 | 天津市百利电气有限公司 | Digital automatic AC constant-current source |
| CN101540581A (en) * | 2008-03-21 | 2009-09-23 | 株式会社电装 | Apparatus for carrying out improved control of rotary machine |
| CN102611252A (en) * | 2012-03-16 | 2012-07-25 | 广州市红鹏直升机遥感科技有限公司 | One-way position limiting switch |
| CN203313101U (en) * | 2013-06-09 | 2013-11-27 | 三科电器集团有限公司 | Voltage regulator motor limiting circuit |
| CN204990052U (en) * | 2015-08-22 | 2016-01-20 | 滁州职业技术学院 | Electronic voltage regulator of two -wire system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105068588A (en) | 2015-11-18 |
| CN105068588B (en) | 2016-05-25 |
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Application publication date: 20160824 |
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