CN203278756U - Module for amplifying acquired signals of air conditioning control subsystem of transformer substation - Google Patents
Module for amplifying acquired signals of air conditioning control subsystem of transformer substation Download PDFInfo
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- CN203278756U CN203278756U CN 201320343243 CN201320343243U CN203278756U CN 203278756 U CN203278756 U CN 203278756U CN 201320343243 CN201320343243 CN 201320343243 CN 201320343243 U CN201320343243 U CN 201320343243U CN 203278756 U CN203278756 U CN 203278756U
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- operational amplifier
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Abstract
The utility model discloses a module for amplifying acquired signals of an air conditioning control subsystem of a transformer substation. The module comprises a first operational amplifier (A1), a second operational amplifier (A2) and an adjustable resistor (R5), wherein the in-phase input end of the first operational amplifier (A1) is connected with an acquired signal input line (1), the inverted input end of the first operational amplifier (A1) is connected with the output end of the first operational amplifier (A1), the output end of the first operational amplifier (A1) is connected with the in-phase input end of the second operational amplifier (A2), the adjustable end of the adjustable resistor (R5) is connected with the inverted input end of the second operational amplifier (A2), and the output end of the second operational amplifier (A2) is connected with an amplified signal output line (2). The module with the structure adopts few elements and is low in cost. The module can be used for amplifying signals acquired by a sensor and reducing loss of the acquired signals in a transmitting process.
Description
Technical field
The utility model relates to intelligent substation control technology field, specifically is used for amplifying the module of transformer station's hollow regulation and control system system acquisition signal.
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-conditioning control subsystem.Wherein, the air-conditioning control subsystem of transformer station when using by its controller according to Sensor monitoring to signal send corresponding control, the Sensor monitoring of existing air-conditioning control subsystem to weak output signal and when transmitting in the line loss larger, the weak output signal that this can cause air-conditioning control subsystem 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 module of be used for amplifying transformer station's hollow regulation and control system system acquisition signal that can amplify collection signal.
the purpose of this utility model is achieved through the following technical solutions: the module that is used for amplifying transformer station's hollow regulation and control system system acquisition signal, comprise the first operational amplifier, the second operational amplifier, the 4th resistance and adjustable resistance, 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, the first operational amplifier output terminal is connected with the second operational amplifier in-phase input end, described the 4th resistance one end is connected with adjustable resistance, its other end is connected with power supply, 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 when the utility model is used, collection signal input line receiving sensor collects, amplifying signal output line are used for the signal after the utility model is processed is exported.
Be used for amplifying the module of transformer station's hollow regulation and control system system acquisition signal, also comprise the first resistance, described the first resistance one end is connected with the collection signal input line, its other end ground connection.Wherein, the first resistance consists of the pull down resistor of the first operational amplifier.
Be used for to amplify the module of transformer station's hollow regulation and control system system acquisition signal, also comprise the 6th resistance, described the 6th resistance string is associated on circuit between the first operational amplifier output terminal and the second operational amplifier in-phase input end.
Be used for to amplify the module of transformer station's hollow regulation and control system system acquisition signal, also comprise the second resistance, described the second resistance one end is connected on circuit between the 6th resistance and the second operational amplifier in-phase input end, its other end ground connection.Wherein, the first resistance consists of the pull down resistor of the second operational amplifier.
Be used for to amplify the module of transformer station's hollow regulation and control system system acquisition signal, also comprise the first voltage-stabiliser tube, 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.
Be used for amplifying the module of transformer station's hollow regulation and control system system acquisition signal, also comprise the first electric capacity and with the 3rd resistance of the first Capacitance parallel connection, the parallel branch two ends of described the first electric capacity and the 3rd resistance are connected with output with the second operational amplifier inverting input respectively.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 consists of voltage follower, the second operational amplifier consists of pre-amplification circuit, so, the first operational amplifier has high input impedance, when coordinating the second operational amplifier work, can reduce the wastage when amplifying collection signal, and then can avoid the collection signal of air-conditioning control subsystem middle controller input faint and affect Based Intelligent Control.
(2) the utility model needs a large amount of components and parts are powered for power supply in the air-conditioning control subsystem, the utility model utilizes adjustable resistance that the supply power voltage in input the utility model is regulated, 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, R6, the 6th resistance, C1, the first 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, be used for amplifying the module of transformer station's hollow regulation and control system system acquisition signal, comprise the first operational amplifier A 1, the second operational amplifier A 2, the 6th resistance R 6, 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 6th resistance R 6 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 6th resistance R 6 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 parallel branch two ends of the first capacitor C 1 and the 3rd resistance R 3 are connected with output with the second operational amplifier A 2 inverting inputs respectively.
When the present embodiment is used, 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-conditioning control subsystem, collection signal through the first operational amplifier A 1 and the second operational amplifier A 2 after settling signal amplify.
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 (6)
1. be used for amplifying the module of transformer station's hollow regulation and control system system acquisition signal, it is characterized in that: comprise the first operational amplifier (A1), the second operational amplifier (A2), the 4th resistance (R4) and adjustable resistance (R5), 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, the first operational amplifier (A1) output is connected with the second operational amplifier (A2) in-phase input end, described the 4th resistance (R4) end is connected with adjustable resistance (R5), its other end is connected with power supply (VCC), 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 module for amplifying transformer station's hollow regulation and control system system acquisition signal according to claim 1, 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 module for amplifying transformer station's hollow regulation and control system system acquisition signal according to claim 1, it is characterized in that: also comprise the 6th resistance (R6), described the 6th resistance (R6) is connected on circuit between the first operational amplifier (A1) output and the second operational amplifier (A2) in-phase input end.
4. the module for amplifying transformer station's hollow regulation and control system system acquisition signal according to claim 3, it is characterized in that: also comprise the second resistance (R2), described the second resistance (R2) end is connected on circuit between the 6th resistance (R6) and the second operational amplifier (A2) in-phase input end, its other end ground connection.
5. the module for amplifying transformer station's hollow regulation and control system system acquisition signal according to claim 1, 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).
6. the described module for amplifying transformer station's hollow regulation and control system system acquisition signal of any one according to claim 1～5, it is characterized in that: also comprise the first electric capacity (C1) and three resistance (R3) in parallel with the first electric capacity (C1), the parallel branch two ends of described the first electric capacity (C1) and the 3rd resistance (R3) are connected with output with the second operational amplifier (A2) inverting input respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320343243 CN203278756U (en) | 2013-06-17 | 2013-06-17 | Module for amplifying acquired signals of air conditioning control subsystem of transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320343243 CN203278756U (en) | 2013-06-17 | 2013-06-17 | Module for amplifying acquired signals of air conditioning control subsystem of transformer substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203278756U true CN203278756U (en) | 2013-11-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320343243 Expired - Fee Related CN203278756U (en) | 2013-06-17 | 2013-06-17 | Module for amplifying acquired signals of air conditioning control subsystem of transformer substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203278756U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103292420A (en) * | 2013-06-17 | 2013-09-11 | 成都荣耀科技有限公司 | Preceding stage collected signal processing module for transformer substation air-conditioner control system |
-
2013
- 2013-06-17 CN CN 201320343243 patent/CN203278756U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103292420A (en) * | 2013-06-17 | 2013-09-11 | 成都荣耀科技有限公司 | Preceding stage collected signal processing module for transformer substation air-conditioner 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: 20131106 Termination date: 20140617 |
|
| EXPY | Termination of patent right or utility model |