Module for amplifying acquired signal of water pump intelligent control system in transformer station
An intelligent control system and signal acquisition technology, applied in electrical program control, program control in sequence/logic controllers, etc., can solve problems such as large loss, weak controller signal, affecting control system control, etc., to reduce loss, The effect of stable signal and high input impedance
Inactive Publication Date: 2013-10-02
CHENGDU RONGYAO TECH
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Problems solved by technology
Among them, the water pump intelligent control system of the substation uses its controller to issue corresponding control according to the signal monitored by the sensor. The signal detected by the sensor of the existing water pump intelligent control system is weak and the loss is large when it is transmitted in the line. It will cause the signal received by the controller in the pump intelligent control system to be weak, which will affect the control system to make corresponding control
Method used
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[0017] like figure 1 As shown, the module for amplifying the acquisition signal of the water pump intelligent control system in the substation includes the acquisition signal input line 1, the amplified signal output line 2, the first triode Q1, the first resistor R1, the second resistor R2, and the third resistor R3, the fourth resistor R4, the fifth resistor R5, the first capacitor C1, the first regulator tube DW1 and the first operational amplifier A1, wherein the first triode Q1 is an NPN triode, and the acquisition signal input line 1 and the first The base of the transistor Q1 is connected, one end of the first resistor R1 is connected to the acquisition signal input line 1 , and the other end is grounded. One end of the second resistor R2 is connected to the emitter of the first triode Q1, and the other end is grounded. One end of the third resistor R3 is connected to the inverting input end of the first operational amplifier A1, and the other end thereof is grounded. ...
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The invention discloses a module for amplifying an acquired signal of a water pump intelligent control system in a transformer station. The module comprises an acquired signal input line, an amplification signal output line, a first triode, a second resistor, a first capacitor, a first operational amplifier and a first voltage-stabilizing tube, wherein the acquired signal input line is connected with the base electrode of the first triode; the amplification signal output line is connected with the output end of the first operational amplifier; one end of the second resistor is connected with the emitting electrode of the first triode and the other end of the second resistor is grounded; one end of the first capacitor is connected to a line between the emitting electrode of the first triode and the second resistor and the other end of the first capacitor is connected to the in-phase input end of the first operational amplifier; the negative electrode of the first voltage-stabilizing tube is connected to a line between the in-phase input end of the first operational amplifier and the first capacitor; and the positive electrode of the first voltage-stabilizing tube is grounded. During use, the module can amplify a signal acquired by a sensor and can reduce the loss in the transmitting process of the acquired signal.
Description
technical field [0001] The invention relates to the technical field of substation intelligent control, in particular to a module for amplifying the signal collected by the water pump intelligent control system in the 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 reliable and stable operation of substations, existing substations are generally equipped with intelligent control systems for water pumps. Among them, the water pump intelligent control system of the substation sends corresponding...
Claims
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Inventor 曾嵘高宏宇钟翼罗怡罗涛张宗刚刘进朝
Owner CHENGDU RONGYAO TECH