CN207543022U - A kind of high-voltage frequency conversion and speed-adjusting device - Google Patents

A kind of high-voltage frequency conversion and speed-adjusting device Download PDF

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Publication number
CN207543022U
CN207543022U CN201721325272.4U CN201721325272U CN207543022U CN 207543022 U CN207543022 U CN 207543022U CN 201721325272 U CN201721325272 U CN 201721325272U CN 207543022 U CN207543022 U CN 207543022U
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CN
China
Prior art keywords
controller
power cell
speed
adjusting
frequency conversion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201721325272.4U
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Chinese (zh)
Inventor
韩建峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hubei Zun Ke Electric Co Ltd
Original Assignee
Hubei Zun Ke Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hubei Zun Ke Electric Co Ltd filed Critical Hubei Zun Ke Electric Co Ltd
Priority to CN201721325272.4U priority Critical patent/CN207543022U/en
Application granted granted Critical
Publication of CN207543022U publication Critical patent/CN207543022U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a kind of high-voltage frequency conversion and speed-adjusting device.It is connected in three phase network, and connect threephase asynchronous machine and transformer, include controller, controller is connected with several power cells, power cell is connected in parallel on for modular construction on the main line of motor, each power cell is powered respectively by one group of secondary of input transformer, mutually insulated between power cell and between transformer secondary winding;The controller is equipped with independent control power supply, and controller is also associated with a personal-machine interface, while programmable controller is provided in man-machine interface, and programmable controller is also powered by independent control power supply.The utility model is simple in structure, can slowly start, non-impact current, and have the function of automatic compensation function and automatic energy saving, reduces the consumption of electric energy.

Description

A kind of high-voltage frequency conversion and speed-adjusting device
Technical field
The utility model is related to motor frequency change speed control device technical fields, are related specifically to a kind of high-voltage frequency conversion and speed-adjusting dress It puts.
Background technology
Variable-frequency governor is that power frequency supply (50Hz or 60Hz) is transformed into the AC power of various frequencies, to realize motor Variable-speed operation equipment, wherein control circuit completes control to main circuit, rectification circuit by convert alternating current into direct current, Direct-flow intermediate circuit carries out the output of rectification circuit smothing filtering, and inverter circuit is by direct current another mistake into alternating current.
Past, variable-frequency governor are typically contained in the electrical equipments such as dynamotor, rotation converter.With partly leading The appearance of body electronic equipment, people can produce completely self-contained variable-frequency governor.For such as vector-control frequency converter this Kind is needed for the frequency converter of a large amount of operations, also needs to the CPU and some corresponding circuits of a progress torque calculation sometimes. Frequency control is to achieve the purpose that speed governing by changing the frequency of motor stator winding power supply.
Existing water pump is opened and closed with variable-frequency governor using manual control, complicated for operation and inconvenient.Start simultaneously When can generate dash current, it is big to the damage comparison of motor.
Therefore it needs to design a kind of new high-voltage frequency conversion and speed-adjusting device.
Invention content
Technical problem to be solved in the utility model is the defects of overcoming the prior art, provides a kind of simple in structure, energy It is enough slowly to start, non-impact current, and there is automatic compensation function and automatic energy saving, reduce the high pressure of the consumption of electric energy Frequency converter.
To achieve these goals, the utility model uses following technical scheme:
A kind of high-voltage frequency conversion and speed-adjusting device, is connected in three phase network, and connects threephase asynchronous machine and transformer, special Sign is, includes controller, and controller is connected with several power cells, and power cell is connected in parallel on motor for modular construction Main line on, each power cell is powered respectively by one group of secondary of input transformer, between power cell and transformation Mutually insulated between device secondary winding;The controller is equipped with independent control power supply, and controller is also associated with personal-machine circle Face, while programmable controller is provided in man-machine interface, programmable controller is also powered by independent control power supply.
In said program, the power cell includes five lines of R, S, T, U, V, and power cell passes through fixed spiral shell Silk installation is in orbit.
In said program, bypass circuit, bypass circuit and motor are parallel between the output terminal of the power cell Main line connects, and equipped with the switch that normal off is opened, is closed in power cell failure.
The utility model is by adopting the above-described technical solution, have the advantages that:
The utility model is simple in structure, can slowly start, non-impact current, and with automatic compensation function and automatically Power saving function reduces the consumption of electric energy.
Description of the drawings
Fig. 1 is the utility model embodiment system line figure;
In figure:1 three phase network, 2 motors, 3 man-machine interfaces, 4 power cells, 5 controllers, 6 programmable controllers, 7 is independent Control power supply.
Specific embodiment
In order to which the content for making the utility model is readily apparent understood, below according to specific embodiment and combine attached Figure, is described in further detail the utility model.
High-voltage frequency conversion and speed-adjusting device as shown in Figure 1 is connected in three phase network 1, and connects threephase asynchronous machine 2 and transformation Device includes controller 5, and controller 5 is connected with several power cells 4, and power cell 4 is connected in parallel on motor for modular construction On 2 main line, each power cell 4 is powered respectively by one group of secondary of input transformer, between power cell 4 and is become Mutually insulated between depressor secondary winding;The controller 5 is equipped with independent control power supply 7, and controller 5 is also associated with a people Machine interface 3, while programmable controller 6 is provided in man-machine interface 3, programmable controller 6 is also supplied by independent control power supply 7 Electricity.
In the present embodiment, the power cell 4 includes five lines of R, S, T, U, V, and power cell 4 passes through fixation Screw installation is in orbit.
In the present embodiment, bypass circuit, bypass circuit and motor are parallel between the output terminal of the power cell 4 2 main lines connect, and equipped with the switch that normal off is opened, are closed when power cell 4 breaks down.
Particular embodiments described above, the technical issues of being solved to the utility model, technical solution and advantageous effect into Go further description, it should be understood that the foregoing is merely specific embodiment of the utility model, and do not have to In limitation the utility model, within the spirit and principle of the utility model, any modification, equivalent substitution and improvements done Deng should be included within the scope of protection of this utility model.

Claims (3)

1. a kind of high-voltage frequency conversion and speed-adjusting device, is connected in three phase network, and connects threephase asynchronous machine and transformer, feature It is, include controller, controller is connected with several power cells, and power cell is connected in parallel on motor for modular construction On main line, each power cell is powered respectively by one group of secondary of input transformer, between power cell and transformer Mutually insulated between secondary winding;The controller is equipped with independent control power supply, and controller is also associated with a personal-machine interface, Programmable controller is provided in man-machine interface simultaneously, programmable controller is also powered by independent control power supply.
2. high-voltage frequency conversion and speed-adjusting device as described in claim 1, which is characterized in that the power cell include R, S, T, U, five lines of V, power cell are installed in orbit by fixed screw.
3. high-voltage frequency conversion and speed-adjusting device as described in claim 1, which is characterized in that between the output terminal of the power cell Bypass circuit is parallel with, bypass circuit is connected with motor main line, equipped with the switch that normal off is opened, in power cell failure It is closed.
CN201721325272.4U 2017-10-16 2017-10-16 A kind of high-voltage frequency conversion and speed-adjusting device Expired - Fee Related CN207543022U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721325272.4U CN207543022U (en) 2017-10-16 2017-10-16 A kind of high-voltage frequency conversion and speed-adjusting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721325272.4U CN207543022U (en) 2017-10-16 2017-10-16 A kind of high-voltage frequency conversion and speed-adjusting device

Publications (1)

Publication Number Publication Date
CN207543022U true CN207543022U (en) 2018-06-26

Family

ID=62609098

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721325272.4U Expired - Fee Related CN207543022U (en) 2017-10-16 2017-10-16 A kind of high-voltage frequency conversion and speed-adjusting device

Country Status (1)

Country Link
CN (1) CN207543022U (en)

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GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180626

Termination date: 20181016