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Intelligent motor control and protection system

A control and protection, intelligent motor technology, applied in electrical program control, comprehensive factory control, control of multiple AC motors, etc., can solve the problems of complex circuit and high manufacturing cost of motor control system, achieve convenient networking, facilitate centralized control, Simple hardware structure

Active Publication Date: 2013-08-07
JIANGSU KAILONG ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an intelligent motor control and protection system with simple circuit, good communication reliability and diversified control functions in order to solve the problems of complex circuit and high manufacturing cost of the existing motor control system described in the background technology

Method used

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  • Intelligent motor control and protection system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] An intelligent motor control and protection system, which includes a host computer 1, a field bus 2, several CPS control and protection switch appliances 3, the communication port 4 of the host computer 1 communicates with each CPS control and protection switch through the RS485 transfer interface 11 and the field bus 2 The communication port 4 of the electrical appliance 3 is connected, the incoming line terminal of the main contact 5 of each CPS control and protection switch is connected to the three-phase power supply 7, and each outgoing line terminal is connected to the corresponding winding of the motor 6 to form the main circuit. Each CPS control and protection switch The programmable input port 8 of the switching device 3 is connected to the control circuit, the two external control mode ports 9 of the CPS control and protection switching device 3 are short-circuited, and the communication control mode of the programmable input port 8 is set, and the CPS control a...

Embodiment 2

[0020] The control loop described in the foregoing scheme includes a switch control loop, and the switch control loop includes a normally closed key switch 12 and a normally open key switch 13, the normally open key switch 13 and the normally open auxiliary contact 14 of the CPS control and protection switching device 3 The circuit formed in parallel is connected in series with the normally closed key switch 12 and connected to the control port of the CPS control and protection switching device 3 .

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PUM

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Abstract

The invention discloses an intelligent motor control and protection system, which comprises a host, field bus and a plurality of CPS (Central Processing System) control and protection switching electric appliances, wherein the communication port of the host is connected with the communication port of each CPS control and protection switching electric appliance through the field bus. The intelligent motor control and protection system provided by the invention can be used for field operation control and remote intelligent centralized control on a plurality of motors, realizes the real-time data transmission, communication and motor running condition detection, has a simple hardware structure, has overload, undervoltage, underload, stall, loss of phase and other motor fault detection and diagnosis functions, and current, voltage, power, temperature measurement functions and the like; and compared with the existing motor control and protection system, the functions are full, and the use is more convenient.

Description

technical field [0001] The invention relates to the electromechanical field, in particular to an intelligent motor control and protection system capable of intelligently monitoring and controlling multiple motors. Background technique [0002] In industrial / civil buildings or industrial and mining enterprises, applications such as control and protection of multiple motors are often used, such as the operation, control, protection, measurement or communication of fans and pumps in building automation control systems; production enterprises Control and protection of automation equipment, etc. In the prior art, the control and protection of multiple motors is usually completed through a control circuit composed of relays, contactors, etc., the circuit is complex, many components are involved, and the manufacturing cost is high. , can not meet the remote monitoring and energy management requirements of the intelligent power distribution and energy management system, has fewer fu...

Claims

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Application Information

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IPC IPC(8): H02P5/74H02H7/08G05B19/418
Inventor 吴晔蒋苏卫周怡雯吴建新王文欣
Owner JIANGSU KAILONG ELECTRONICS
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