CN1202034A - Brushless frequency converter set - Google Patents
Brushless frequency converter set Download PDFInfo
- Publication number
- CN1202034A CN1202034A CN 97112312 CN97112312A CN1202034A CN 1202034 A CN1202034 A CN 1202034A CN 97112312 CN97112312 CN 97112312 CN 97112312 A CN97112312 A CN 97112312A CN 1202034 A CN1202034 A CN 1202034A
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- CN
- China
- Prior art keywords
- brushless
- generator
- excitation
- frequency
- electric generator
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Abstract
A brushless frequency-variable machine set features that the main electric generator and exciting electric generator of brushless three-phase synchronous AC generator excited by the third harmonics are designed to have the same cores of stator and rotor, the third-harmonic component magnetic field of main gap magnetic field is used to excite the exciting electric generator, and co-shaft and co-casing design is used to assembly the three-phase asynchronous motor and brushless three-phase synchronous electric generator excited by the third harmonics together to form a machine set. It can output a voltage and frequency different from input those.
Description
Brushless frequency conversion unit is a kind of new motor product.This technical scheme that manufactures a product is to propose on the basis of the design and manufacturing technology of the middle-size and small-size diesel oil three-phase synchronous generator of existing Y series threephase asynchronous and third harmonic excitation.
Brushless frequency conversion unit is that the dress immersible concrete vibrator is made the motor special that the power transformation power-supply device uses in the power supply machine.
The basic structure of brushless frequency conversion unit is the electric rotating machine structure, and structure can be divided into relatively independent threephase asynchronous and brushless third harmonic excitation three-phase synchronous AC generator two large divisions.Two machines adopt the casing design and installation altogether of corotation axle.See accompanying drawing 1.The following explanation is an example with the brushless frequency conversion unit of JZMB-4000 type (the building concrete vibrator is with 4000 volt-amperes).
Threephase asynchronous is partly continued to use the design and manufacturing technology of Y series threephase asynchronous, need not apply at this and state.
The shared stator core of the main generator of brushless third harmonic excitation three-phase synchronous AC generator (hereinafter to be referred as brushless generator) and excitation generator and a rotor core.Stator is provided with 8 utmost point three-phase alternating current main generator armature winding coil WA, 4 extremely single-phase excitation generator excitation winding coil Wf, 24 extremely single-phase triple-frequency harmonics winding coil W3.Rotor is the non-salient pole wound rotor, 4 extremely single-phase excitation generator armature line group coil Wa is set, 8 utmost point main generator excitation winding coil WF.See accompanying drawing 2.
W3 two end lines and Wf two end lines connect with static bridge rectification device GZ1, and W3 two end lines connect the AC side of GZ1.Wa two end lines connect with the rotation bridge rectification device RGZ that is fixed in the rotating shaft with WF two end lines, and Wa two end lines connect the AC side of RGZ, see accompanying drawing 2.
For guaranteeing the reliable foundation of brushless generator floating voltage in the brushless frequency conversion unit.Utilize the threephase armature neutral point N of threephase asynchronous to draw electric wire and draw electric wire with neutral point with upper edge 4 volts of tap PA of a certain armature winding mutually coil, two draw 4 volts that electric wire is drawn, and 50 He Zhi alternating currents are through static bridge rectification device GZ2 rectification.GZ1 and the addition of GZ2 DC side are used for the excitatory excitation of brushless generator.
Threephase asynchronous armature winding coil WD end line A in the brushless frequency conversion unit, B, C are input.Brushless generator master armature winding coil WF end line a.b.c is an output, sees accompanying drawing 2.
Import 50 He Zhi for brushless frequency conversion unit, 380 volts of three-phase alternating currents, threephase asynchronous starts operation, and rotating speed approaches with 3000 rev/mins of leg speeds.Motor is by common axis transmission brushless generator rotor, and brushless generator is with near 3000 rev/mins of operations of rated speed, and floating voltage is set up in excitatory excitation.Unit is exported nearly 200 He Zhi, 50 volts of three-phase alternating currents.
During brushless frequency conversion unit operation, by a mechanoelectric conversion, with 50 He Zhi of input, 380 volts of three-phase alternating currents become 200 He Zhi, the output of 50 volts of three-phase alternating currents.4000 watts of input powers, 4000 volt-amperes of output capacities.Unit is under continuous duty, and stable temperature rise is no more than 75 ℃.From the zero load to the full load, the output voltage rate of change is lower than 10%.
Compare with hand-held power motor with existing cable type concrete vibrator, mainly contain following three advantages.
With regard to certain part of a civil construction project, brushless frequency conversion unit is as converting equipment, and the position is more fixing, need not frequent moving, and only needs to draw required cable from the unit output and gets final product.Alleviate builder's labour intensity so greatly.
The cable type concrete vibrator is directly quoted 50 He Zhi, 380 volts of three-phase alternating currents with hand-held power motor, operates dangerously, and this unit has overcome this shortcoming, has guaranteed builder's personal safety.
Brushless frequency convertor has adopted brushless design, has avoided in the brush conducting process, because the wearing and tearing of brush, collector ring, the dust greasy dirt causes the bad and turnover spark of conduction, has guaranteed the safety in construction site.
Existing cable type concrete vibrator can only use for an a kind of vibrating head of specifications and models with power motor.Can not satisfy the needs that use the vibrating head of different size model on the engineering.The JZWB-4000 type is brushless, and the frequency conversion unit can start a kind of motor interior dress immersible concrete vibrator (rod) of or several specifications and models simultaneously and keep its normal operation continuously.For example:
The vibrator (rod) of two vibrators of ZDN100 type (rod), ZDN42, ZDN50, ZDN60, four kinds of models of ZDN70.
Accompanying drawing 1A is a product master cutaway view
Accompanying drawing 1B is the product left view
The explanation of accompanying drawing drawing:
(sequence number that indicates with accompanying drawing 1 is a preface)
(1) fan jump ring
(2) bearing
(3) fan
(4) threephase asynchronous machine line bag
(5) unit end cap
(6) end cap fastening bolt
(7) fan housing holding screw
(8) motor cage rotor
(9) unit rotating shaft
(10) motor stator core
(11) unit shell
(12) input three-core cable
(13) draw electric wire and cable protection rubber sleeve
(14) mains switch mounting plate
(15) three-phase power switch
(16) motor, generator unit stator are drawn electric wire
(17) label and label fixed screw
(18) binding post
(19) terminal box and lid
(20) accessory power outlet
(21) connector cover holding screw
(22) terminal block, wiring holding screw, binding post packing ring, binding post clamp nut etc.
(23) bridge rectification device holding screw, nut
(24) bridge rectification device
(25) the solid screw of terminal box
(26) generator rotor core packing ring
(27) electricity generator stator core
(28) generator rotor core
(29) key for sleeping in
(30) generator unit stator line bag
(31) generator amature line bag
(32) tegillum holding screw
(33) the generator amature winding coil is drawn electric wire
(34) rotation bridge rectification device
(35) rotation bridge rectification device holding screw
(36) tegillum
(37) generator rotor core compresses locknut
(38) generator rotor core packing ring
(39) base pipe support
(40) pony sill casing supporting plate
(41) pony sill fastening bolt
(42) fan housing
FZWB-4000 type brushless frequency converter group is succeeded in developing by Gaoyang Electric Motors Factory, Hebei Prov..
Claims (2)
- Brushless frequency conversion unit is a kind of new motor product.1, main generator and the excitation generator with brushless third harmonic excitation three-phase synchronous AC generator is designed to common stator, rotor core, and the third-harmonic component magnetic field that utilizes the air gap main field is for excitation generator excitation.
- 2, adopt the casing design altogether of corotation axle, threephase asynchronous and brushless third harmonic excitation three-phase synchronous AC generator are assembled into unit.With the method for mechanoelectric conversion, the three-phase alternating current of a kind of frequency, a kind of voltage is transformed into the alternating current of another kind of frequency, another kind of voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97112312 CN1202034A (en) | 1997-06-05 | 1997-06-05 | Brushless frequency converter set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97112312 CN1202034A (en) | 1997-06-05 | 1997-06-05 | Brushless frequency converter set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1202034A true CN1202034A (en) | 1998-12-16 |
Family
ID=5172200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97112312 Pending CN1202034A (en) | 1997-06-05 | 1997-06-05 | Brushless frequency converter set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1202034A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100369361C (en) * | 2005-07-27 | 2008-02-13 | 南京航空航天大学 | Method for designing and controlling asynchronous motor power generation system of stator duplex winding |
| CN100376066C (en) * | 2005-11-23 | 2008-03-19 | 哈尔滨工业大学 | Brushless phase modifier possessing harmonic wave inhibition function |
| EP2592734A1 (en) * | 2011-11-14 | 2013-05-15 | Vetco Gray Scandinavia AS | Electrical gear and method for operating a machinery rotating at high speed |
| CN106329528A (en) * | 2016-11-08 | 2017-01-11 | 上海电机学院 | Power harmonic conversion and utilizing device |
| CN114614644A (en) * | 2022-03-24 | 2022-06-10 | 西安交通大学 | Rotary triple-frequency electric energy conversion device and working method thereof |
-
1997
- 1997-06-05 CN CN 97112312 patent/CN1202034A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100369361C (en) * | 2005-07-27 | 2008-02-13 | 南京航空航天大学 | Method for designing and controlling asynchronous motor power generation system of stator duplex winding |
| CN100376066C (en) * | 2005-11-23 | 2008-03-19 | 哈尔滨工业大学 | Brushless phase modifier possessing harmonic wave inhibition function |
| EP2592734A1 (en) * | 2011-11-14 | 2013-05-15 | Vetco Gray Scandinavia AS | Electrical gear and method for operating a machinery rotating at high speed |
| US9685897B2 (en) | 2011-11-14 | 2017-06-20 | Vetco Gray Scandinavia As | Electrical gear and method for operating a subsea machinery rotating at high speed |
| CN106329528A (en) * | 2016-11-08 | 2017-01-11 | 上海电机学院 | Power harmonic conversion and utilizing device |
| CN114614644A (en) * | 2022-03-24 | 2022-06-10 | 西安交通大学 | Rotary triple-frequency electric energy conversion device and working method thereof |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |