CN204361908U - Manually, remote circuit frequency converter - Google Patents
Manually, remote circuit frequency converter Download PDFInfo
- Publication number
- CN204361908U CN204361908U CN201420568709.7U CN201420568709U CN204361908U CN 204361908 U CN204361908 U CN 204361908U CN 201420568709 U CN201420568709 U CN 201420568709U CN 204361908 U CN204361908 U CN 204361908U
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Abstract
The utility model provides manually, remote circuit frequency converter.Be respectively equipped with ventilation hole in both sides, casing top, be provided with binding post in casing front lower, be provided with control panel at casing face; Control panel is provided with display screen, and portion is provided with rotation direction display, remote control mode selector and alarm display lamp on a display screen, is provided with button in control panel bottom, button comprises: operational mode options button, first operating instruction key, rotating switch key, the second operating instruction key, Menu key, return key, write-read key, displacement reset key, halt instruction key, increases and reduces key; And be provided with frequency converter control circuit.The utility model has the advantage that manipulation is convenient, directly perceived and handling is good.And can manual manipulation and remote control manipulation.Suitable to motor power application of frequency converter.
Description
Technical field
The utility model provides power domain for controlling the converter plant of motor rotation, specifically manually, remote circuit frequency converter.
Background technology
Frequency converter is AC power power frequency supply (50Hz or 60Hz) being transformed into various frequency, to realize the equipment of the variable-speed operation of motor, wherein control circuit completes the control to main circuit, convert alternating current is become direct current by rectification circuit, the smoothing filtering of the output of direct-flow intermediate circuit to rectification circuit, direct current another mistake is become alternating current by inverter circuit.For the frequency converter of the such as a large amount of computing of this needs of vector-control frequency converter, sometimes also need CPU and some a corresponding circuit carrying out torque calculation.This is the definition to frequency converter during frequency converter is repaired.
The sorting technique of frequency converter has multiple, according to the classification of main circuit working method, can be divided into voltage frequency converter and current-mode converter; According to on-off mode classification, PAM can be divided into control frequency converter, pwm cycloconverter and high carrier frequency pwm cycloconverter; According to operation principle classification, V/f can be divided into control frequency converter, slip frequency controlled frequency converter and vector-control frequency converter etc.; In frequency converter is repaired, according to purpose classification, universal frequency converter, high-performance special converter, high-frequency converter, single-phase frequency converter and three phase converter etc. can be divided into.
The non intelligent control mode used in AC converter has V/f cooperation control, slip frequency controlled, vector control, direct torque control etc.It is to obtain desirable torque-speed characteristic that V/f controls, and while carrying out speed governing in change supply frequency, ensure that the thought that the magnetic flux of motor is constant proposes again, General Converters all adopts this control mode substantially.It is very simple that V/f controls frequency changer, but this frequency converter adopts open loop control mode, can not reach higher control performance, and, when low frequency, must compensated torque be carried out, to change low-frequency torque characteristic.In frequency converter is repaired, slip frequency controlled is a kind of control mode of direct controlling torque, it is on the basis that V/f controls, according to knowing the supply frequency that the actual speed of asynchronous motor is corresponding, and the torque desirably obtained is to regulate the output frequency of frequency converter, motor just can be made to have corresponding Driving Torque.Vector control is size by phasor coordinate circuit controling motor stator current and phase place, controls respectively, and then reach the object controlling motor torque to reach to the exciting current of motor in d, q, 0 system of axis and torque current.By the action time of the sequence of operation and time and zero vector that control each vector, various PWM ripple can be formed again, reach various different control object.Direct torque control is the concept utilizing space vector coordinate, the Mathematical Modeling of alternating current motor is analyzed under stator coordinate, control magnetic linkage and the torque of motor, the object of observation stator magnetic linkage is reached by detecting stator resistance, therefore the transformation calculations of the complexity such as vector control is eliminated, system is directly perceived, succinct, and computational speed and precision all increase than vector control mode.
Existing frequency converter is substantially all adopt manual operations.Inconvenience is used for remote control with under being not easy to manually operated environment.
Summary of the invention
In order to realize frequency converter craft or straighforward operation, the utility model provides manually, remote circuit frequency converter.Frequency changer circuit loads in housing by this frequency converter, arranges manipulation plate before housing, solves the technical problem of frequency converter manual operation and straighforward operation.
The scheme that technical solution problem of the present invention adopts is:
Contour structures: be respectively equipped with ventilation hole in both sides, casing top, be provided with binding post in casing front lower, be provided with control panel at casing face;
Control panel structure: be provided with display screen on control panel, portion is provided with rotation direction display, remote control mode selector and alarm display lamp on a display screen, is provided with button in control panel bottom, button comprises: operational mode options button, the-operating instruction key, rotating switch key, the second operating instruction key, Menu key, return key, write-read key, displacement reset key, halt instruction key, increases and reduces key;
Frequency converter control circuit:
Be connected with display circuit at variable frequency power supply output, display circuit is connected with display screen;
Rectification circuit, intermediate circuit are connected with manual control circuit respectively with inverter circuit, and manual control circuit is connected with button;
Be connected with remote control circuit respectively at power input, rectification circuit and intermediate circuit, intermediate circuit and inverter circuit, circuit connecting wire between inverter circuit with variable frequency power supply output, remote control circuit is connected with wireless signal receiver.
Good effect, the utility model has the advantage that manipulation is convenient, directly perceived and handling is good.And can manual manipulation and remote control manipulation.Suitable to motor power application of frequency converter.
Accompanying drawing explanation
Fig. 1 is the utility model shape assumption diagram
Fig. 2 is the utility model guidance panel figure
Fig. 3 is the utility model circuit connection diagram
In figure, 1. casing, 2. ventilation hole, 3. binding post, 4. control panel, 4.1. display screen, 4.2. rotation direction display, 4.3. remote control mode selector, 4.4. alarm display lamp, 4.5. operational mode options button, 4.6. the first operating instruction key, 4.7. rotating switch key, 4.8. second operating instruction key, 4.9. Menu key, 4.10. return key, 4.11. write-read key, 4.12. be shifted reset key, 4.13. halt instruction key, and 4.14. increases and reduces key.
Embodiment
Contour structures: shown in Fig. 1, is respectively equipped with ventilation hole 2 in both sides, casing 1 top, is provided with binding post 3 in casing front lower, be provided with control panel 4 at casing face;
Control panel structure: shown in Fig. 2, control panel is provided with display screen 4.1, and portion is provided with rotation direction display 4.2, remote control mode selector 4.3 and alarm display lamp 4.4 on a display screen, be provided with button in control panel bottom, button comprises: operational mode options button 4.5, the-operating instruction key 4.6, rotating switch key 4.7, second operating instruction key 4.8, Menu key 4.9, return key 4.10, write-read key 4.11, displacement reset key 4.12, halt instruction key 4.13, increases and reduces key 4.14;
Frequency converter control circuit: shown in Fig. 3, variable frequency power supply input is connected with variable frequency power supply output with inverter circuit by rectification circuit, intermediate circuit;
Be connected with display circuit at variable frequency power supply output, display circuit is connected with display screen;
Rectification circuit, intermediate circuit are connected with manual control circuit respectively with inverter circuit, and manual control circuit is connected with button;
Be connected with remote control circuit respectively at power input, rectification circuit and intermediate circuit, intermediate circuit and inverter circuit, circuit connecting wire between inverter circuit with variable frequency power supply output, remote control circuit is connected with wireless signal receiver.
The effect of each button:
Rotation direction display, for showing the rotating of motor;
Remote control mode selector, for selecting manually or the display of remote control;
Display screen, display Rdy inputs operating instruction, display enters running status and the data of display supervision data, parameter numbering and set point;
Operational mode options button, runs the decision of mutual switchover operation for operational mode control loop with digital operation device;
First operating instruction key is with operating instruction key during digital operation;
Rotating switch key, for switch motor rotating operational mode;
Second operating instruction key, runs for motor and starts working;
Menu key, for switch manually and remote control operational mode sets;
Increase and reduce key, for increase or the reduction of data input;
Return key, for inputting returning of data and operational mode;
Write-read key, for selection and the input of operational mode, grouping, functional parameter title;
Displacement reset key, for selecting the figure place of the set point that will revise;
Halt instruction key, sends for instruction out of service;
Binding post, for being connected with microcomputer network circuit.
Use of the present utility model:
Single-phase or three-phase power input end are exported from variable frequency power supply output by rectification circuit, intermediate circuit and inverter circuit, manually push-botton operation, make manual control circuit control the operation of power supply frequency changer circuit.When needs straighforward operation, send remote signal by remote controller, after wireless signal receiver receives, drive remote control circuit work, order about rectification circuit, intermediate circuit and inverter circuit and run, realize the frequency conversion of power supply.
Operation principle:
Input power, by rectification, forms direct current, and direct current forms the direct current of setting voltage by intermediate circuit filtering process, and direct current is exported through variable frequency power supply by the alternating current being reverse into setpoint frequency after variable-frequency pulse.Control impuls frequency, changes the frequency of out-put supply, makes motor by frequency run, realize frequency control.
Claims (1)
1. manual, remote circuit frequency converter, is characterized in that:
Be respectively equipped with ventilation hole (2) in casing (1) both sides, top, be provided with binding post (3) in casing front lower, be provided with control panel (4) at casing face;
Control panel is provided with display screen (4.1), portion is provided with rotation direction display (4.2), remote control mode selector (4.3) and alarm display lamp (4.4) on a display screen, button is provided with in control panel bottom, button comprises: operational mode options button (4.5), first operating instruction key (4.6), rotating switch key (4.7), second operating instruction key (4.8), Menu key (4.9), return key (4.10), write-read key (4.11), displacement reset key (4.12), halt instruction key (4.13), increases and reduces key (4.14);
Power input is connected with variable frequency power supply output with inverter circuit by rectification circuit, intermediate circuit;
Be connected with display circuit at variable frequency power supply output, display circuit is connected with display screen;
Rectification circuit, intermediate circuit are connected with manual control circuit respectively with inverter circuit, and manual control circuit is connected with button;
Be connected with remote control circuit respectively at power input, rectification circuit and intermediate circuit, intermediate circuit and inverter circuit, circuit connecting wire between inverter circuit with variable frequency power supply output, remote control circuit is connected with wireless signal receiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420568709.7U CN204361908U (en) | 2014-09-30 | 2014-09-30 | Manually, remote circuit frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420568709.7U CN204361908U (en) | 2014-09-30 | 2014-09-30 | Manually, remote circuit frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204361908U true CN204361908U (en) | 2015-05-27 |
Family
ID=53263354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420568709.7U Expired - Fee Related CN204361908U (en) | 2014-09-30 | 2014-09-30 | Manually, remote circuit frequency converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204361908U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104993770A (en) * | 2015-07-05 | 2015-10-21 | 中能世华(北京)节能科技有限公司 | Multi-power permanent magnet motor energy-saving device |
| CN105154940A (en) * | 2015-08-10 | 2015-12-16 | 南车戚墅堰机车车辆工艺研究所有限公司 | Intelligent brush electroplating power source |
-
2014
- 2014-09-30 CN CN201420568709.7U patent/CN204361908U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104993770A (en) * | 2015-07-05 | 2015-10-21 | 中能世华(北京)节能科技有限公司 | Multi-power permanent magnet motor energy-saving device |
| CN105154940A (en) * | 2015-08-10 | 2015-12-16 | 南车戚墅堰机车车辆工艺研究所有限公司 | Intelligent brush electroplating power source |
| CN105154940B (en) * | 2015-08-10 | 2018-03-27 | 中车戚墅堰机车车辆工艺研究所有限公司 | A kind of intelligent electric brush plating power supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150527 Termination date: 20160930 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |