CN2035937U - Speed regulating device with series stage of silicon control - Google Patents
Speed regulating device with series stage of silicon control Download PDFInfo
- Publication number
- CN2035937U CN2035937U CN 88213597 CN88213597U CN2035937U CN 2035937 U CN2035937 U CN 2035937U CN 88213597 CN88213597 CN 88213597 CN 88213597 U CN88213597 U CN 88213597U CN 2035937 U CN2035937 U CN 2035937U
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- CN
- China
- Prior art keywords
- regulating device
- speed regulating
- phase
- inverter
- scr
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- 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.)
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- Control Of Ac Motors In General (AREA)
- Motor And Converter Starters (AREA)
Abstract
The utility model discloses a speed regulating device with a series stage for a wound motor, comprising a rectifier composed of a three-phase bridge diode, an improved inverter longitudinally controlling a controlled silicon, an inverter working and phase-shifting controller and a frequency sensitive resistance converting circuit. The speed regulating device dispenses with the necessary inverting transformer of the traditional speed regulating device with the series stage so as to not only reduce the cost of the speed regulating device and realize the slowly smooth start of the motor, but also make the power factor of the speed regulating device be raised to more than 0.6.
Description
The utility model relates to the cascade speed regulator of wire wound motor.
Prior motor SCR cascade speed control device generally has two kinds of versions: a kind of is the bridge-type cascade speed regulator that contains contravariant transformer, and this apparatus cost costliness and energy-saving effect are relatively poor; Another kind of zero formula cascade speed regulator for simplifying though this device has saved contravariant transformer, when using, has DC component, can influence the operate as normal of network transformer.
In view of the problem of above-mentioned existence, the purpose of this utility model provides a kind ofly both can save contravariant transformer, can not influence network transformer operate as normal, energy-conservation novel thyristor cascade speed regulator again.
The task that the utility model proposed is realized by following measure: it is provided with the rectifier that a three-phase bridge diode is formed in cascade speed regulator, to realize the current commutates of conventional rotor winding; Be provided with a vertical continuous control SCR inverter of remodeling, to realize the feedback of slip power; Be provided with an inverter work phase-shift controller, to realize the vertical continuous control of controllable silicon remodeling; The quick resistance changing-over of the frequency circuit that is provided with a unique connection is to realize the motor smooth starting.
The utility model is compared with existing cascade speed regulator, has not only save contravariant transformer, has reduced cost, has realized motor smooth starting at a slow speed, and power factor (PF) is brought up to more than 0.6.
Circuit diagram of the present utility model is by providing in the accompanying drawing:
Fig. 1 is the SCR cascade speed control manipulated or operated apparatus.
For ease of understanding the utility model, the existing embodiment that provides in reference to the accompanying drawings is elaborated:
Shown in the dashed rectangle among Fig. 1 (1) is the three-phase bridge diode rectifier; Shown in the dashed rectangle (2) is the vertical continuous control SCR inverter of remodeling; Shown in the dashed rectangle (3) is inverter work phase-shift controller, and it is made up of synchrotrans TB, phase shifting transformer YB, pulse shaper ZY, reversible servomotor ND, position phase place fine setting converter WZ, electronic trigger DY; Shown in the dashed rectangle (4) is the quick resistance changing-over circuit of frequency, and it is by frequency quick resistance BP, contactor C
3, C
4Form, be serially connected with between rotor winding and the rectifier bridge.
Concrete connection is: will be by the winding-type motor rotor winding leads of speed governing through frequency quick resistance changing-over circuit BP, C
3, C
4, bridge diode rectification, direct current reactor DK are to the bridge type silicon controlled inverter of the vertical continuous control of no-reverse change transformer list bridge remodeling, and inverter is through power supply reactor AK, contactor C
2, feeder line inserts power supply.
The vertical continuous control SCR inverter common cathode group controllable silicon of remodeling is by pulse phase shifting transformer YB, through pulse reshaper ZY, control inversion control angle; The anode group keeps certain pilot angle by electronic trigger DY altogether, realizes novel vertical continuous control, has improved power factor (PF), and Control work is finished respectively by ZY, DY.
Phase shifting transformer YB drives phase shift by reversible servomotor ND, coaxial at preset position point by position phase converter WZ, the DY output phase is finely tuned, it is electric to have eliminated cascade adjustable-speed system---and mechanical low-frequency resonant, again may in the top of having eliminated inverter bridge work simultaneously.
Frequently quick resistance changes shifting circuit, during starting, and contact C
3, C
4Open, the minimum inversion pilot angle in inverter bridge place, motor is realized the low speed starting, maximum starting current is no more than the motor rated operational current, has guaranteed electrical network and motor shaft load smooth starting, has avoided impact.
During speed governing, contact C
3Closure, C
4Open, inverter inserts speed governing work.
Starting at full speed, then closed C
4, the proceed-to-send motor reaches at full speed, closed again C
3Operation gets final product.
Claims (2)
1, a kind of SCR cascade speed control device that contains three-phase bridge diode rectifier (1) that is used for the speed governing of wire wound rotor, it is characterized in that these speed regulating device contain the vertical continuous control of the remodeling SCR inverter (2) of a no-reverse change transformer, an inverter work phase-shift controller (3) and one are by frequency quick resistance BP, contactor C
3, C
4Form, be serially connected with the quick resistance changing-over of the frequency circuit (4) between rotor winding and the rectifier bridge.
2, SCR cascade speed control device according to claim 1 is characterized in that the inverter phase-shift controller is finely tuned converter WZ by synchrotrans TB, phase shifting transformer YB, pulse shaper ZY, reversible servomotor ND, position phase place and electronic trigger DY forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88213597 CN2035937U (en) | 1988-08-23 | 1988-08-23 | Speed regulating device with series stage of silicon control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88213597 CN2035937U (en) | 1988-08-23 | 1988-08-23 | Speed regulating device with series stage of silicon control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2035937U true CN2035937U (en) | 1989-04-12 |
Family
ID=4846679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88213597 Withdrawn CN2035937U (en) | 1988-08-23 | 1988-08-23 | Speed regulating device with series stage of silicon control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2035937U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103929103A (en) * | 2014-04-04 | 2014-07-16 | 烟台鲁宝钢管有限责任公司 | Controllable silicon rectifier device double driven by high power direct current motor |
-
1988
- 1988-08-23 CN CN 88213597 patent/CN2035937U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103929103A (en) * | 2014-04-04 | 2014-07-16 | 烟台鲁宝钢管有限责任公司 | Controllable silicon rectifier device double driven by high power direct current motor |
| CN103929103B (en) * | 2014-04-04 | 2016-09-07 | 烟台鲁宝钢管有限责任公司 | A kind of high power DC electric machine pair the silicon controlled rectifier driven |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |