CN201504222U - Special frequency converter for spinning - Google Patents
Special frequency converter for spinning Download PDFInfo
- Publication number
- CN201504222U CN201504222U CN2009200780370U CN200920078037U CN201504222U CN 201504222 U CN201504222 U CN 201504222U CN 2009200780370 U CN2009200780370 U CN 2009200780370U CN 200920078037 U CN200920078037 U CN 200920078037U CN 201504222 U CN201504222 U CN 201504222U
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- CN
- China
- Prior art keywords
- gate bipolar
- bipolar transistors
- spinning
- parallel
- alternating current
- 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
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Abstract
The utility model provides a special frequency converter for spinning, which comprises an alternating current rectification circuit, a direct current frequency conversion circuit and a high speed processor, wherein the alternating current rectification circuit is a three-phase alternating current rectifier bridge comprising a diode; two charging capacitors connected in serials are connected in parallel to the two ends of the three-phase alternating current rectifier bridge; a charging resistor is connected with the output of the three-phase rectifier bridge; a contactor is connected in parallel with the charging resistor; the charging capacitors which are connected in serials are connected in parallel with three groups of isolated gate bipolar transistors; each group of isolated gate bipolar transistors comprise two isolated gate bipolar transistors; the emitters of the two of the isolated gate bipolar transistors are output at the joint of collecting electrodes to a motor; and the bases of the three groups of isolated gate bipolar transistors are connected to the high speed processor respectively. The utility model has the advantages of convenient speed regulation and high efficiency.
Description
Technical field
The utility model relates to the variable-frequency control technique field, specifically a kind of spinning special converter.
Background technology
The way speed governing or the chain type stepless speed regulation case system of existing used in spinning machine transposing belt pulley, spinning machine otherwise the time change the speed of a motor vehicle, waste time and energy wearing and tearing easily, maintenance cost height.Spinning machine needs external instrument: ammeter, tachometer; The spinning gauge table, the mounting structure complexity, reliability is low.
Prior art has following shortcoming:
A) the existing equipment way speed governing of transposing belt pulley, time-consuming, effort; If easy to wear serious with each position of chain type stepless speed regulation case system, maintenance is frequent, and the accessory that has also needs import, and fittings cost is higher.
B) the fragile and noise of machine is big, the rove broken end is many.
C) the inaccurate location of Ting Cheing, the operation difficulty of shelves turner.
D) take.
E) cost height, complex structure, reliability is low.
The utility model content
The purpose of this utility model is for providing a kind of speed governing convenience, the spinning special converter that efficient is high.
The technical scheme that realizes the foregoing invention purpose is as follows:
The spinning special converter, comprise ac rectifier, DC frequency-changing circuit and high speed processor, described ac rectifier is the three-phase alternating current rectifier bridge that diode is formed, the charging capacitor of the two ends of described three-phase alternating current rectifier bridge two series connection in parallel, and the output of three-phase commutation bridge connects a charging resistor, a described charging resistor contactor in parallel, two charging capacitors of series connection, three groups of insulated gate bipolar transistors in parallel, every group comprises two insulated gate bipolar transistors, and the emitter of every group of two insulated gate bipolar transistors and collector electrode junction export motor to, and the base stage of three groups of insulated gate bipolar transistors is connected respectively to high speed processor.
The utility model receives external signal by high speed processor direct current component is carried out the frequency adjustment, thereby reaches the control motor rotation, just it is carried out speed governing.The utlity model has following advantage:
1. speed governing is convenient, raises the efficiency, and reduces labour intensity.Because of the requirement of production technology (comprising the change of spinning kind, technology, coefficient), spinning machine otherwise the time change the speed of a motor vehicle, past, time-consuming, effort used this spinning special machine just extremely to make things convenient for the way of transposing belt pulley.
2. improve product quality.The slow start process that this spinning special machine can be realized ideal, the damage and the noise of minimizing machine reduce rove broken end and details, favourable raising product yield and quality; Utilize the low-speed running of this spinning special machine, can realize the accurate location of stopping, the operation of the convenient shelves turner of stopping.
3. energy-conservation.This spinning special machine is than original device energy conservation 20～50%.
4. this spinning special machine makes things convenient for the monitoring of machine run state, as current of electric, rotating speed etc.
5. this spinning special machine includes gauge table, can reduce cost, and optimizes structure, and improves reliability.
Description of drawings
Fig. 1 is circuit theory diagrams of the present utility model
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, the spinning special converter, comprise ac rectifier, DC frequency-changing circuit and high speed processor, described ac rectifier is the three-phase alternating current rectifier bridge that diode is formed, the charging capacitor of the two ends of described three-phase alternating current rectifier bridge two series connection in parallel, and the output of three-phase commutation bridge connects a charging resistor, a described charging resistor contactor in parallel, two charging capacitors of series connection, three groups of insulated gate bipolar transistors in parallel, every group comprises two insulated gate bipolar transistors, and the emitter of every group of two insulated gate bipolar transistors and collector electrode junction export motor to, and the base stage of three groups of insulated gate bipolar transistors is connected respectively to high speed processor.
The utility model mainly is made up of strong power part, weak current part, reference schematic,
Strong power part: input three-phase AC380V is charged as DC540V through starting resistance to electrochemical capacitor through the three-phase commutation bridge rectification, when charging finishes contactor adhesive, charging resistor short circuit.By controlling 6 ON time that IGBT is different, DC 540V is modulated into the sine voltage of three-phase changeable frequency, and drive motors is realized speed governing.
Weak current part: finish by high speed processor.
Receive external input signal:
Action command---FWD (just changeing) REV (counter-rotating);
Spinning length signals---real time record spinning length
The changing shifts signal of spinning---A B C switch between four classes of D
The spinning the low cruise signal---this signal is effective, moves under low speed
Output control: the IGBT inversion control, adopt leading control algolithm--the switch conduction sequential of space vector pulse width modulation SVPWM (Space Vector Pulse Width Modulation)-control IGBT.
When spinning no input signal, output contact YC YB can move the contact.
Spinning arrives when doffing length, output signal M01 conducting.
Special structure design can adapt to the temperature height of spinning, the adverse circumstances of high humidity.
Software section:
The professional control flow that design one alignment requires spinning process on the software.
1) frequency is adjustable continuously, and peak frequency reaches 400Hz, high starting torque: 150% starting torque
2) can set the V/F curve arbitrarily, cooperate the compensated torque function, 100%～150% starting torque is provided.
3) omnibearing detection defencive function: have in overvoltage, under voltage, motor overload, the acceleration/running stall prevent defencive function, frequency detecting.
4) spinning length metering: can receive the pulse signal of length, after calculating automatically, convert spinning length to,
5) spinning production metering: can write down the spinning production of 4 classes, and can real time record arrive the spinning length of (A class, B class, C class, D class) not of the same class and the total length of each class.
6) spinning length and running frequency relation curve: nearly 15 segment length and 16 corresponding band frequencies can be set, be operated in different running frequencies, improve spinning process greatly in different length.
7) spinning front roller speed calculation: can calculate in real time and digital " the front roller speed " that shows spinning.
8) the spinning outside terminal is selected speed: can be by control IO terminal, and spinning machine operates under the low speed frequency.
9) spinning protection frequency: when the pulse signal of 60 seconds no length is imported, automatic running protection frequency.
10) the special-purpose input and output terminal that spins: the input and output IO terminal of configure dedicated, input: the changing shifts signal, remove current length, length pulse signal, the output of low cruise signal: the spinning no signal, the signal that doffs all can be exported with relay contact.
Claims (1)
1. spinning special converter, comprise ac rectifier, DC frequency-changing circuit and high speed processor, it is characterized by: described ac rectifier is the three-phase alternating current rectifier bridge that diode is formed, the charging capacitor of the two ends of described three-phase alternating current rectifier bridge two series connection in parallel, and the output of three-phase commutation bridge connects a charging resistor, a described charging resistor contactor in parallel, two charging capacitors of series connection, three groups of insulated gate bipolar transistors in parallel, every group comprises two insulated gate bipolar transistors, and the emitter of every group of two insulated gate bipolar transistors and collector electrode junction export motor to, and the base stage of three groups of insulated gate bipolar transistors is connected respectively to high speed processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200780370U CN201504222U (en) | 2009-07-09 | 2009-07-09 | Special frequency converter for spinning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200780370U CN201504222U (en) | 2009-07-09 | 2009-07-09 | Special frequency converter for spinning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201504222U true CN201504222U (en) | 2010-06-09 |
Family
ID=42455150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200780370U Expired - Fee Related CN201504222U (en) | 2009-07-09 | 2009-07-09 | Special frequency converter for spinning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201504222U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108315841A (en) * | 2018-04-04 | 2018-07-24 | 江南大学 | A kind of RING SPINNING Numerical control system and its control method |
-
2009
- 2009-07-09 CN CN2009200780370U patent/CN201504222U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108315841A (en) * | 2018-04-04 | 2018-07-24 | 江南大学 | A kind of RING SPINNING Numerical control system and its control method |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100609 Termination date: 20160709 |