Energy saver control system for three-phase asynchronous motor

A three-phase asynchronous, control system technology, applied in control systems, AC motor control, electrical components, etc., can solve the problems of increased power loss of motors, increased product costs, etc.

Inactive Publication Date: 2016-02-17
陶建波
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the production process, many electromechanical equipment are in the intermittent load working state, such as planers, slotting machines, etc.; there are also some equipment that are often under-loaded. The existence of these factors increases the unnecessary power loss of the motor, thereby increasing the product cost.

Method used

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  • Energy saver control system for three-phase asynchronous motor

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Embodiment Construction

[0009] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0010] Such as figure 1 As shown, a three-phase asynchronous motor economizer control system in this embodiment includes a three-phase asynchronous motor 1, a controller 2, a current sampling module 4, a voltage sampling module 5 and a phase comparison module 6. The three-phase asynchronous The motor 1 includes A-phase lead wires 11, B-phase lead wires 12 and C-phase lead wires 13. The A-phase lead wires 11, B-phase lead wires 12 and C-phase lead wires 13 are respectively connected with a thyristor A21 and a thyristor B22. and thyristor C23, the C-phase lead 13 is provided with a resistor 3, the current sampling module 4 is connected to the resistor 3 through a wire, and the voltage sampling module 5 is respectively connected to the B-phase lead 12 and the C-phase through a wire Lead 13, the current sampling module 4 and the voltage sampling module 5 i...

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Abstract

The invention discloses an energy saver control system for a three-phase asynchronous motor. The three-phase asynchronous motor comprises an A phase lead, a B phase lead and a C phase lead that are led out; the A phase lead, the B phase lead and the C phase lead are connected with a silicon controlled rectifier A, a silicon controlled rectifier B and a silicon controlled rectifier C respectively; the C phase lead is provided with a resistor; a current sampling module is connected with the resistor through a wire; a voltage sampling module is connected with the B phase lead and the C phase lead separately through wires; the current sampling module and the voltage sampling module input the collected signal into a phase position comparison module; the phase position comparison module inputs the signal after comparison into a controller; and the controller is connected with the silicon controlled rectifier A, the silicon controlled rectifier B and the silicon controlled rectifier C separately. The energy saver control system adopts the integrated circuit control and the intelligent sampling, computing and control are realized; and the energy saver control system has the function of electricity saving as well as the functions of soft start, open-phase protection, overcurrent protection, overhigh protection and the like.

Description

technical field [0001] The invention relates to a control system, in particular to a control system for a three-phase asynchronous motor energy saver. Background technique [0002] In the production process, many electromechanical equipment are in the intermittent load working state, such as planers, slotting machines, etc.; there are also some equipment that are often under-loaded. The existence of these factors increases the unnecessary power loss of the motor, thereby increasing the product cost. . Contents of the invention [0003] The technical problem to be solved by the invention is to provide a three-phase asynchronous motor economizer control system capable of saving energy and reducing consumption. [0004] The technical solution adopted in the present invention is: a three-phase asynchronous motor energy saver control system, including a three-phase asynchronous motor, a controller, a current sampling module, a voltage sampling module and a phase comparison mod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P27/16
Inventor 陶建波
Owner 陶建波
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