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Touch-screen type program controlled synchronous dynamo exciting arrangement and program control method

A technology of excitation device and synchronous motor, which is applied to the starter of a single synchronous machine, motor generator/starter, etc., can solve the problems of poor stability, poor reliability of out-of-step detection link, and only faulty plug-ins can be replaced. Low operating noise, good anti-electromagnetic interference effect

Inactive Publication Date: 2005-08-17
苏州市苏开电气成套有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

The excitation device adopts a single set of control plug-ins, and it needs to be shut down when the control part fails. When there are two sets of plug-ins, the control circuit is complicated and has a high failure rate, and only the faulty plug-ins can be replaced, and the entire set of plug-ins cannot be replaced; the control circuit is cont

Method used

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  • Touch-screen type program controlled synchronous dynamo exciting arrangement and program control method
  • Touch-screen type program controlled synchronous dynamo exciting arrangement and program control method
  • Touch-screen type program controlled synchronous dynamo exciting arrangement and program control method

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Embodiment Construction

[0033] The present invention will be further described below in conjunction with accompanying drawing:

[0034] As shown in Figure 1, the touch-screen program-controlled synchronous motor excitation device of the present invention is provided with a main circuit and a control circuit, and the main circuit includes a demagnetization circuit, a rectifier bridge, a transformer, and a main power switch of a contactor, and is characterized in that the The rectifier bridge is a half-controlled or fully-controlled rectifier bridge; the control loop includes a trigger, a programmable controller and a touch screen. The programmable controller is provided with an input port and an output port connected to the excitation system, and communicates with the touch screen and the The host computer is connected, the input of the trigger is connected with the main circuit and the programmable controller, and its output is connected with the thyristor trigger pole of the rectifier bridge.

[003...

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Abstract

This invention provides a touching program control simultaneous motor excitation device with strong communication function. The invention is located with main loop and control loop and constantly analyzes and takes samples of the motor rotor current, power parameters, excitation voltage, and excitation current and compares with the pre-set parameters, operation styles and automatically adjust through means of excitation current to achieve the best start and running effect.

Description

technical field [0001] The invention relates to an excitation device and a program control method thereof, which are applied in the field of synchronous motors, and can be used for matching excitation of synchronous motors that are driven with no load and light load starting, such as ball mills, blowers, compressors, oxygen generators, water pumps and other equipment , It can also be used for excitation of synchronous motors that drive impact loads, such as steel rolling loads. Background technique [0002] At present, the existing thyristor excitation device of synchronous motor generally consists of rectifier transformer, synchronous transformer, three-phase bridge half-controlled rectifier circuit, demagnetization circuit, synchronization, phase-shift trigger circuit, pulse distribution circuit, excitation control circuit and Relay control circuit composition. The excitation device adopts a single set of control plug-ins, and it needs to be shut down when the control par...

Claims

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Application Information

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IPC IPC(8): H02P1/46
Inventor 刘桂兰杨汉裕陈煜祥
Owner 苏州市苏开电气成套有限公司
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