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Collected signal preprocessor of air conditioner control subsystem in transformer substation

A technology of acquisition signal and preprocessor, which is applied in the field of acquisition signal preprocessor, can solve the problems of affecting the control system control, large loss, weak signal, etc., and achieve the effect of amplifying the acquisition signal and reducing loss

Inactive Publication Date: 2013-09-04
CHENGDU RONGYAO TECH
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Problems solved by technology

Among them, the air-conditioning control subsystem of the substation sends corresponding controls through its controller according to the signal detected by the sensor during application. It will cause the signal received by the controller in the air conditioning control subsystem to be weak, which will affect the control system to make corresponding controls

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  • Collected signal preprocessor of air conditioner control subsystem in transformer substation

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Embodiment

[0016] Such as figure 1 As shown, the acquisition signal preprocessor of the air conditioning control subsystem in the substation includes the first operational amplifier A1, the second operational amplifier A2, the second capacitor C2, the fourth resistor R4 and the power supply VCC, wherein the first operational amplifier A1 is in phase The input terminal is connected with a collection signal input line 1, and the inverting input terminal of the first operational amplifier A1 is connected with its output terminal. The two ends of the second capacitor C2 are respectively connected to the output terminal of the first operational amplifier A1 and the non-inverting input terminal of the second operational amplifier A2, and the two ends of the fourth resistor R4 are respectively connected to the power supply VCC and the inverting input terminal of the second operational amplifier A2. The output end of the operational amplifier A2 is connected with an amplified signal output line ...

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Abstract

The invention discloses a collected signal preprocessor of an air conditioner control subsystem in a transformer substation. The signal preprocessor comprises a first operational amplifier (A1), a second operational amplifier (A2), a second capacitor (C2), a fourth resistor (R4) and a power supply (VCC). The non-inverting input end of the first operational amplifier (A1) is connected with a collected signal input wire (1), and the inverting input end of the first operational amplifier (A1) is connected with the output end of the first operational amplifier (A1). Two ends of the second capacitor (C2) are connected with the output end of the first operational amplifier (A1) and the non-inverting input end of the second operational amplifier (A2), and the output end of the second operational amplifier (A2) is connected with an amplifying signal output wire (2). By means of the structure, the preprocessor is simple in integral structure, convenient to achieve and low in cost. Fewer components are used. The preprocessor can amplify signals collected by a sensor and reduce loss in the collected signal transmission process.

Description

technical field [0001] The invention relates to the technical field of substation intelligent control, in particular to a preprocessor for collecting signals of an air-conditioning control subsystem in a substation. Background technique [0002] With the development of industry, all walks of life have increasing requirements for the reliability and stability of power supply in the power system. As the core link of the power system, the substation is used to collect power, raise and lower voltage and distribute electric energy, and is responsible for the high power supply in the area. Low-voltage conversion and power supply tasks, therefore, the safe operation of substations is crucial to the power system. [0003] In order to ensure the reliable and stable operation of substations, existing substations are generally equipped with air conditioning control subsystems. Among them, the air-conditioning control subsystem of the substation sends corresponding control through its...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03F3/45H03F1/32F24F11/00
Inventor 高宏宇曾嵘罗涛张宗刚刘进朝钟翼罗怡
Owner CHENGDU RONGYAO TECH
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