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Self-adaptive trigger circuit of three-phase electric dust-removing power supply

A technology of three-phase power supply and dust removal power supply, which is applied in the direction of electrical components, output power conversion devices, etc., can solve the problems of complex phase sequence detection circuit, time-consuming and laborious, etc., and achieve the effect of simple circuit, strong anti-interference ability and convenient installation

Active Publication Date: 2010-10-13
DALIAN JIAHE IND CONTROL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, it is not only complicated to set up the phase sequence detection circuit, but also must be installed according to the phase sequence (sequence or reverse sequence) of the three-phase power supply, which is time-consuming and laborious.

Method used

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  • Self-adaptive trigger circuit of three-phase electric dust-removing power supply
  • Self-adaptive trigger circuit of three-phase electric dust-removing power supply
  • Self-adaptive trigger circuit of three-phase electric dust-removing power supply

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Embodiment Construction

[0011] The specific implementation manner of the present invention will be described below with reference to the accompanying drawings. Such as figure 1 Shown: Same as the prior art, there is a three-phase power supply main circuit control unit connected to the three-phase power supply, and a power signal transmitter connected to the three-phase power supply, and the output of the power signal transmitter is respectively connected to the synchronous signal The generator is connected to the phase signal generator, the output of the synchronous signal generator is connected to the trigger signal generator through the CPU, the output of the phase signal generator is directly connected to the trigger signal generator, and the output of the trigger signal generator is connected to the three-phase The main circuit control unit of the power supply is connected.

[0012] The trigger signal generator such as figure 2 Shown: There are NOT gates (74HC14) U1-1, U1-2 and U1-3 connected ...

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Abstract

The invention discloses a self-adaptive trigger circuit of a three-phase electric dust-removing power supply, which is provided with a three-phase power supply main circuit control unit connected with the three-phase power supply. The self-adaptive trigger circuit is characterized in that the three-phase power supply is connected with a power supply signal transmitter; the output end of the power signal transmitter is connected with a synchronizing signal generator and a phase signal generator respectively; the output end of the synchronizing signal generator is connected with a trigger signal generator by a CPU; the output end of the phase signal generator is connected directly with the trigger signal generator; and the output end of the trigger signal generator is connected with the three-phase main circuit control unit. The circuit of the invention is simple and has the advantages of strong anti-interference ability, convenient installation and no need of manual debugging and phase sequence detection.

Description

Technical field: [0001] The invention relates to a three-phase power supply control circuit for an electric precipitator, in particular to an adaptive trigger circuit for a three-phase electric precipitator power supply which does not need to detect the phase sequence of the three-phase power supply and is easy to install. Background technique: [0002] Electrostatic precipitator is a dust removal device that deposits charged dust particles on electrodes under the action of high-voltage electric field force, thereby separating dust particles from dust-containing gas. It has been widely used in electric power, metallurgy, building materials, chemical industry, petroleum, Textile, boiler, steel and other industries. Since the three-phase high-voltage power supply can always maintain phase balance, can stably increase the operating current and voltage of the electric field, increase the dust removal efficiency of the electrostatic precipitator, and have obvious energy-saving ef...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/084
Inventor 李卓函段同磊侯彬彬李彦生
Owner DALIAN JIAHE IND CONTROL TECH
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