CN203289386U - Collected signals amplification module in transformer substation air-conditioner intelligent control system - Google Patents
Collected signals amplification module in transformer substation air-conditioner intelligent control system Download PDFInfo
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- CN203289386U CN203289386U CN2013203432737U CN201320343273U CN203289386U CN 203289386 U CN203289386 U CN 203289386U CN 2013203432737 U CN2013203432737 U CN 2013203432737U CN 201320343273 U CN201320343273 U CN 201320343273U CN 203289386 U CN203289386 U CN 203289386U
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- operational amplifier
- resistance
- control system
- amplification module
- intelligent control
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Abstract
The utility model discloses an collected signals amplification module in a transformer substation air-conditioner intelligent control system. The amplification module comprises a first operational amplifier, a second operational amplifier, a second capacitor, a fourth resistor, an adjustable resistor and a power source, wherein the non-inverting-phase input end of the first operational amplifier is connected with a collected signal input line, and the inverting-phase input end of the first operational amplifier is connected with the output end of the first operational amplifier. The two ends of the second capacitor are connected with the output end of the first operational amplifier and the non-inverting-phase input end of the second operational amplifier respectively, the two ends of the fourth resistor are connected with the power source and the adjustable resistor respectively, the other end, relative to the end connected with the fourth resistor, of the adjustable resistor is connected with the ground, the adjustable end of the adjustable resistor is connected with the inverting-phase input end of the second operational amplifier, and the output end of the second operational amplifier is connected with an amplifying signal output line. When the amplification module is applied, the signals collected by a sensor can be amplified, and the losses in the transmission process of the collected signals can be reduced.
Description
Technical field
The utility model relates to intelligent substation control technology field, specifically the amplification module of collection signal in transformer station's air conditioner intelligent control system.
Background technology
Along with industrial expansion, all trades and professions improve day by day to the power supply reliability of electric power system and the requirement of stability, transformer station is as the core link of electric power system, it is used for collecting power supply, lifting voltage and distributes electric energy, undertaking high-low pressure conversion and the power supply task of region, therefore, the safe operation of transformer station is most important to electric power system.
In order to guarantee the reliable and stable operation of transformer station, existing transformer station generally is equipped with the air conditioner intelligent control system.Wherein, the air conditioner intelligent control system of transformer station when application by its controller according to Sensor monitoring to signal send corresponding control, the Sensor monitoring of existing air conditioner intelligent control system to weak output signal and while transmitting in the line loss larger, the weak output signal that this can cause air conditioner intelligent control system middle controller to receive, and then affect control system and make corresponding control.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and providing a kind of can reduce the wastage, and the amplification module of collection signal in the transformer station's air conditioner intelligent control system that can amplify collection signal.
the purpose of this utility model is achieved through the following technical solutions: the amplification module of collection signal in transformer station's air conditioner intelligent control system, comprise the first operational amplifier, the second operational amplifier, the second electric capacity, the 4th resistance, adjustable resistance and power supply, described the first operational amplifier in-phase input end is connected with the collection signal input line, the first operational amplifier inverting input is connected with its output, described the second electric capacity two ends respectively with the first operational amplifier output terminal be connected the operational amplifier in-phase input end and be connected, described the 4th resistance two ends are connected with adjustable resistance with power supply respectively, described adjustable resistance connects the other end ground connection of the 4th resistance terminal relatively, the adjustable end of adjustable resistance is connected with the second operational amplifier inverting input, the output of described the second operational amplifier is connected with the amplifying signal output line.The signal that during the utility model application, collection signal input line receiving sensor collects, the amplifying signal output line is used for the signal after the utility model is processed is exported.
In transformer station's air conditioner intelligent control system, the amplification module of collection signal, also comprise the first resistance, and described the first resistance one end is connected with the collection signal input line, its other end ground connection.Wherein, the first resistance forms the pull down resistor of the first operational amplifier.
In transformer station's air conditioner intelligent control system, the amplification module of collection signal, also comprise the second resistance, and described the second resistance one end is connected on circuit between the second electric capacity and the second operational amplifier in-phase input end, its other end ground connection.Wherein, the first resistance forms the pull down resistor of the second operational amplifier.
In transformer station's air conditioner intelligent control system, the amplification module of collection signal, also comprise the first voltage-stabiliser tube, and described the first voltage-stabiliser tube negative pole is connected on circuit between the 4th resistance and adjustable resistance, the plus earth of the first voltage-stabiliser tube.
The amplification module of collection signal in transformer station's air conditioner intelligent control system, also comprise that the first electric capacity reaches and the 3rd resistance of the first Capacitance parallel connection, described the first electric capacity is connected with output with the second operational amplifier inverting input respectively with the parallel branch two ends of the 3rd resistance.Wherein, the first electric capacity is used for high-frequency noise and the spike burr of filtered signal.
Compared with prior art, the utlity model has following beneficial effect: in (1) the utility model, the first operational amplifier inverting input is connected with its output, the first operational amplifier forms voltage follower, the second operational amplifier forms pre-amplification circuit, so, the first operational amplifier has high input impedance, while coordinating the second operational amplifier work, can reduce the wastage when amplifying collection signal, and then can avoid the collection signal of air conditioner intelligent control system middle controller input faint and affect Based Intelligent Control.
(2) the utility model is connected with the second electric capacity between the first operational amplifier and the second operational amplifier, so, passes through the second electric capacity energy isolated DC voltage signal during the utility model application.
(3) the utility model needs a large amount of components and parts are powered for power supply in the air conditioner intelligent control system, the utility model utilizes adjustable resistance to regulate the supply power voltage in input the utility model, and then can reach the voltage of demand, so, can avoid the utility model is equipped with separately the cost increase that power supply causes.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
In accompanying drawing, the corresponding name of Reference numeral is called: 1, collection signal input line, 2, the amplifying signal output line, R1, the first resistance, R2, the second resistance, R3, the 3rd resistance, R4, the 4th resistance, R5, adjustable resistance, C1, the first electric capacity, C2, the second electric capacity, A1, the first operational amplifier, A2, the second operational amplifier, DW1, the first voltage-stabiliser tube, VCC, power supply.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but execution mode of the present utility model is not limited to this.
Embodiment
As shown in Figure 1, the amplification module of collection signal in transformer station's air conditioner intelligent control system, comprise the first operational amplifier A 1, the second operational amplifier A 2, the second capacitor C 2, the 4th resistance R 4, adjustable resistance R5 and power supply VCC, wherein, the first operational amplifier A 1 in-phase input end is connected with collection signal input line 1, the first operational amplifier A 1 inverting input and is connected with its output.The second capacitor C 2 two ends respectively with the first operational amplifier A 1 output be connected operational amplifier A 2 in-phase input ends and be connected, the 4th resistance R 4 two ends are connected with adjustable resistance R5 with power supply VCC respectively, adjustable resistance R5 is to connecting the other end ground connection of the 4th resistance R 4 ends, the adjustable end of adjustable resistance R5 is connected with the second operational amplifier A 2 inverting inputs, and the output of the second operational amplifier A2 is connected with amplifying signal output line 2.
The present embodiment also comprises the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the first voltage-stabiliser tube DW1 and the first capacitor C 1, and wherein, the first resistance R 1 one ends are connected with collection signal input line 1, its other end ground connection; The second resistance R 2 one ends are connected on circuit between the second capacitor C 2 and the second operational amplifier A 2 in-phase input ends, its other end ground connection; The first voltage-stabiliser tube DW1 negative pole is connected on circuit between the 4th resistance R 4 and adjustable resistance R5, the plus earth of the first voltage-stabiliser tube DW1.The first capacitor C 1 and the 3rd resistance R 3 formation in parallel parallel branch, the first capacitor C 1 is connected with output with the second operational amplifier A 2 inverting inputs respectively with the parallel branch two ends of the 3rd resistance R 3.
During the present embodiment application, the other end that collection signal input line 1 connects the first operational amplifier A 1 end relatively is used for connecting sensor, and amplifying signal output line 2 is used for connecting the controller of air conditioner intelligent control system, and collection signal settling signal after the first operational amplifier A 1 and the second operational amplifier A 2 amplifies.
Above content is the further description of the utility model being done in conjunction with concrete preferred implementation, can not assert that embodiment of the present utility model is confined to these explanations., for the utility model person of an ordinary skill in the technical field,, not breaking away from other execution modes that draw under the technical solution of the utility model, all should be included in protection range of the present utility model.
Claims (5)
1. the amplification module of collection signal in transformer station's air conditioner intelligent control system, it is characterized in that: comprise the first operational amplifier (A1), the second operational amplifier (A2), the second electric capacity (C2), the 4th resistance (R4), adjustable resistance (R5) and power supply (VCC), described the first operational amplifier (A1) in-phase input end is connected with collection signal input line (1), the first operational amplifier (A1) inverting input is connected with its output, described the second electric capacity (C2) two ends respectively with the first operational amplifier (A1) output be connected operational amplifier (A2) in-phase input end and be connected, R5 is connected with power supply (VCC) respectively in described the 4th resistance (R4) two ends with adjustable resistance) be connected, described adjustable resistance (R5) connects the other end ground connection of the 4th resistance (R4) end relatively, the adjustable end of adjustable resistance (R5) is connected with the second operational amplifier (A2) inverting input, the output of described the second operational amplifier (A2) is connected with amplifying signal output line (2).
2. the amplification module of collection signal in transformer station according to claim 1 air conditioner intelligent control system, it is characterized in that: also comprise the first resistance (R1), described the first resistance (R1) end is connected with collection signal input line (1), its other end ground connection.
3. the amplification module of collection signal in transformer station according to claim 1 air conditioner intelligent control system, it is characterized in that: also comprise the second resistance (R2), described the second resistance (R2) end is connected on circuit between the second electric capacity (C2) and the second operational amplifier (A2) in-phase input end, its other end ground connection.
4. the amplification module of collection signal in transformer station according to claim 1 air conditioner intelligent control system, it is characterized in that: also comprise the first voltage-stabiliser tube (DW1), described the first voltage-stabiliser tube (DW1) negative pole is connected on circuit between the 4th resistance (R4) and adjustable resistance (R5), the plus earth of the first voltage-stabiliser tube (DW1).
5. the amplification module of collection signal in the described transformer station of any one air conditioner intelligent control system according to claim 1～4, it is characterized in that: also comprise the first electric capacity (C1) and three resistance (R3) in parallel with the first electric capacity (C1), described the first electric capacity (C1) is connected with output with the second operational amplifier (A2) inverting input respectively with the parallel branch two ends of the 3rd resistance (R3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203432737U CN203289386U (en) | 2013-06-17 | 2013-06-17 | Collected signals amplification module in transformer substation air-conditioner intelligent control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203432737U CN203289386U (en) | 2013-06-17 | 2013-06-17 | Collected signals amplification module in transformer substation air-conditioner intelligent control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203289386U true CN203289386U (en) | 2013-11-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203432737U Expired - Fee Related CN203289386U (en) | 2013-06-17 | 2013-06-17 | Collected signals amplification module in transformer substation air-conditioner intelligent control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203289386U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103279049A (en) * | 2013-06-17 | 2013-09-04 | 成都荣耀科技有限公司 | Circuit amplifying collected signal and arranged in transformer substation air conditioner intelligent control system |
-
2013
- 2013-06-17 CN CN2013203432737U patent/CN203289386U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103279049A (en) * | 2013-06-17 | 2013-09-04 | 成都荣耀科技有限公司 | Circuit amplifying collected signal and arranged in transformer substation air conditioner intelligent control 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 |
Granted publication date: 20131113 Termination date: 20140617 |
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| EXPY | Termination of patent right or utility model |