CN105575646B - A kind of method for improving variable-frequency transformer leakage inductance - Google Patents
A kind of method for improving variable-frequency transformer leakage inductance Download PDFInfo
- Publication number
- CN105575646B CN105575646B CN201410627877.3A CN201410627877A CN105575646B CN 105575646 B CN105575646 B CN 105575646B CN 201410627877 A CN201410627877 A CN 201410627877A CN 105575646 B CN105575646 B CN 105575646B
- Authority
- CN
- China
- Prior art keywords
- yoke
- variable
- frequency transformer
- primary coil
- secondary coil
- 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.)
- Active
Links
Landscapes
- Coils Of Transformers For General Uses (AREA)
Abstract
The invention discloses a kind of method for improving variable-frequency transformer leakage inductance, comprise the following steps：Step 101, coiling primary coil and secondary coil；Step 102, the yoke that N number of rectangle silicon steel sheet is stacked into rectangular parallelepiped structure；Step 103, with insulating tape yoke is tied, then carry out insulated paint dipping, finally dried；Step 104, the iron core of variable-frequency transformer are U-shaped iron core；Primary coil is plugged on a U-shaped core limb unshakable in one's determination, and secondary coil is plugged on U-shaped another core limb unshakable in one's determination；Step 105, installation closed core；Step 106, adjustment interferric space, the gap between primary coil, and the gap between secondary coil；Step 107, high frequency transformer is carried out to impregnated insulating paint, drying.By using above-mentioned technical proposal, the present invention can improve the leakage inductance of variable-frequency transformer well on the premise of variable-frequency transformer volume is not increased.
Description
Technical field
The present invention relates to transformer technology field, more particularly to a kind of method for improving variable-frequency transformer leakage inductance.
Background technology
At present, with the high speed development of society, the demand of variable-frequency transformer is increasing, variable-frequency transformer
(variable frequency transformer, VFT) is a kind of new Survey of Flexible AC Transmission System that can connect asynchronous power network
System equipment.Variable-frequency transformer is that one kind is integrated with transformer, phase shifter, hydrogenerator, double feedback electric engine and DC driven etc.
The New-type asynchronous Power System Interconnection device of technology, phase core component are the rotation transformations for having single-phase winding in stator and rotor-side
Device, and the phase shift by DC motor Driver system call interception rotor field relative to stator field, become so as to control through frequency conversion
The watt level of depressor output and direction.Variable-frequency transformer mainly has rotary transformer, direct-drive motor and collector ring etc. 3
It is grouped into.Wherein, rotary transformer is to realize theme that rotor exchanges with stator both sides system power by magnetic coupling principle, directly
Stream motor is the key equipment for controlling rotor speed and variable-frequency transformer transimission power size, collector ring be realize rotor windings with
The equipment that external system forms electrical connection.Variable-frequency transformer have Asynchronous Interconnection, transmission power control, frequency adjustment, to weak
System power supply, black starting-up power supply, suppress the functions such as low frequency power oscillation.It is functionally similar to DC back to back, but ratio leans against
The back of the body is particularly suited for weak mains system, is more beneficial for reducing and takes up an area, GE companies have installed 5 in North America.In adjustment control with
Phase converter is similar, but the synchronization between holding system, can be realized asynchronous by the rotation smooth adjustment phase shift of the rotation of rotor
Firm power transmission between system.
It is well known that leakage inductance is to weigh an important parameter of variable-frequency transformer performance indications, at present, in order to improve frequency conversion
The leakage inductance of transformer, engineers pass through frequently with technological means be to extend length unshakable in one's determination, it is therefore apparent that this traditional side
Result caused by formula is that the volume of variable-frequency transformer sharply increases.
The content of the invention
The technical problem to be solved in the present invention is：One kind is provided raising variable-frequency variable-voltage is realized on the premise of volume is not increased
The method of device leakage inductance.
The present invention is adopted the technical scheme that to solve technical problem present in known technology：
A kind of method for improving variable-frequency transformer leakage inductance, comprises the following steps：
Step 101, coiling primary coil and secondary coil；
Step 102, the yoke that N number of rectangle silicon steel sheet is stacked into rectangular parallelepiped structure；The length of the yoke is equal to frequency conversion
The folded thickness of transformer main core, the width of the yoke are not more than the width of line bag；The thickness of each silicon steel sheet is 0.35mm；Its
Middle N is the natural number not less than 2；
Step 103, with insulating tape the yoke is tied, then carry out insulated paint dipping, finally dried；
Step 104, the iron core of the variable-frequency transformer are U-shaped iron core；The primary coil is plugged in U-shaped one unshakable in one's determination
On core limb, the secondary coil is plugged on U-shaped another core limb unshakable in one's determination, and specific grafting process is：
Primary coil is plugged on U-shaped core limb unshakable in one's determination from bottom to top, per the complete primary coil of grafting, then first
One yoke of inserting above level coil, the subsequent next primary coil of grafting；
Secondary coil is plugged on U-shaped core limb unshakable in one's determination from bottom to top, per the complete secondary coil of grafting, then secondary
One yoke of inserting above level coil, the subsequent next secondary coil of grafting；
Step 105, installation closed core；
Step 106, adjustment interferric space, the gap between primary coil, and the gap between secondary coil；
Step 107, high frequency transformer is carried out to impregnated insulating paint, drying.
As optimal technical scheme, the present invention additionally uses following technical characteristic：
The primary coil and secondary coil are six, and the yoke is five pairs.
The yoke is located at U-shaped outside unshakable in one's determination.
The present invention has the advantages and positive effects of：By using above-mentioned technical proposal, the present invention is not increasing frequency conversion
On the premise of volume of transformer, by setting up the yoke between primary coil and secondary coil, frequency conversion can be improved well
The leakage inductance of transformer, while will not also increase the volume of variable-frequency transformer.
Brief description of the drawings
Fig. 1 is the workflow diagram for the method that the present invention improves variable-frequency transformer leakage inductance；
Fig. 2 is the structural representation of yoke in the present invention；
Wherein：1st, primary coil；2nd, yoke；3rd, secondary coil；4th, closed core.
Embodiment
In order to further understand the content, features and effects of the present invention, hereby enumerating following examples, and coordinate accompanying drawing
Describe in detail as follows：
Fig. 1 and Fig. 2 are referred to, a kind of method for improving variable-frequency transformer leakage inductance, is comprised the following steps：
Step 101, coiling primary coil 1 and secondary coil 3；
Step 102, the yoke 2 that N number of rectangle silicon steel sheet is stacked into rectangular parallelepiped structure；The length of the yoke 2, which is equal to, to be become
The folded thickness of frequency power transformer main core, the width of the yoke 2 are not more than the width of line bag；Each the thickness of silicon steel sheet is
0.35mm；Wherein N is the natural number not less than 2；
Step 103, in order to prevent the short circuit between coil, between yoke and coil and between yoke 2 and iron core, use
Insulating tape is tied the yoke 2, is then carried out insulated paint dipping, is finally dried；
Step 104, the iron core of the variable-frequency transformer are U-shaped iron core；The primary coil is plugged in U-shaped one unshakable in one's determination
On core limb, the secondary coil is plugged on U-shaped another core limb unshakable in one's determination, and specific grafting process is：
Primary coil 1 is plugged on U-shaped core limb unshakable in one's determination from bottom to top, per the complete primary coil of grafting, then existed
One yoke 2 of inserting of the top of primary coil 1, the subsequent next primary coil of grafting；
The circle of secondary wire 3 is plugged on U-shaped core limb unshakable in one's determination from bottom to top, per the complete secondary coil 3 of grafting, then existed
One yoke of inserting above secondary coil, the subsequent next secondary coil of grafting；
Step 105, installation closed core 4；
Step 106, adjustment interferric space, the gap between primary coil, and the gap between secondary coil；
Step 107, high frequency transformer is carried out to impregnated insulating paint, drying.
On the basis of above-mentioned specific embodiment, the present invention is mainly used for the variable-frequency transformer of 3+3 forms, i.e., described first
Level coil 1 and secondary coil 3 are six, and the yoke is five pairs.
Because U-shaped outside unshakable in one's determination is on magnetic circuit, yoke 2 is placed in U-shaped outside unshakable in one's determination, can now ensure yoke
It is in magnetic circuit to the maximum area of iron 2, and then the effect that can be optimal, so on the basis of above-mentioned specific embodiment,
The yoke is located at U-shaped outside unshakable in one's determination.
Embodiments of the invention are described in detail above, but the content is only presently preferred embodiments of the present invention,
It is not to be regarded as the practical range for limiting the present invention.Any changes and modifications in accordance with the scope of the present application,
All should still it belong within the patent covering scope of the present invention.
Claims (1)
- A kind of 1. method for improving variable-frequency transformer leakage inductance, it is characterised in that：Comprise the following steps：Step 101, coiling primary coil and secondary coil；Step 102, the yoke that N number of rectangle silicon steel sheet is stacked into rectangular parallelepiped structure；The length of the yoke is equal to variable-frequency variable-voltage The folded thickness of device main core, the width of the yoke are not more than the width of line bag；The thickness of each silicon steel sheet is 0.35mm；Wherein N For the natural number not less than 2；Step 103, with insulating tape the yoke is tied, then carry out insulated paint dipping, finally dried；Step 104, the iron core of the variable-frequency transformer are U-shaped iron core；The primary coil is plugged in a U-shaped iron core unshakable in one's determination On post, the secondary coil is plugged on U-shaped another core limb unshakable in one's determination, and specific grafting process is：Primary coil is plugged on U-shaped core limb unshakable in one's determination from bottom to top, per the complete primary coil of grafting, then in primary line Enclose one yoke of inserting of top, the subsequent next primary coil of grafting；Secondary coil is plugged on U-shaped core limb unshakable in one's determination from bottom to top, per the complete secondary coil of grafting, then in secondary wire Enclose one yoke of inserting of top, the subsequent next secondary coil of grafting；Step 105, installation closed core；Step 106, adjustment interferric space, the gap between primary coil, and the gap between secondary coil；Step 107, high frequency transformer is carried out to impregnated insulating paint, drying；The primary coil and secondary coil are six, and the yoke is five pairs；The yoke is located at U-shaped outside unshakable in one's determination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410627877.3A CN105575646B (en) | 2014-11-10 | 2014-11-10 | A kind of method for improving variable-frequency transformer leakage inductance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410627877.3A CN105575646B (en) | 2014-11-10 | 2014-11-10 | A kind of method for improving variable-frequency transformer leakage inductance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105575646A CN105575646A (en) | 2016-05-11 |
| CN105575646B true CN105575646B (en) | 2017-11-17 |
Family
ID=55885674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410627877.3A Active CN105575646B (en) | 2014-11-10 | 2014-11-10 | A kind of method for improving variable-frequency transformer leakage inductance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105575646B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62186126A (en) * | 1986-02-06 | 1987-08-14 | ダンフオス アクチエセルスカベト | High-frequency ignition transformer for oil or gas burner |
| CN202650818U (en) * | 2012-03-22 | 2013-01-02 | 一诺科技股份有限公司 | Transformer structure capable of increasing leakage inductance |
| CN104021920A (en) * | 2014-05-27 | 2014-09-03 | 华为技术有限公司 | Coupling inductor and power converter |
| CN104115243A (en) * | 2012-02-23 | 2014-10-22 | Fdk株式会社 | Transformer |
-
2014
- 2014-11-10 CN CN201410627877.3A patent/CN105575646B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62186126A (en) * | 1986-02-06 | 1987-08-14 | ダンフオス アクチエセルスカベト | High-frequency ignition transformer for oil or gas burner |
| CN104115243A (en) * | 2012-02-23 | 2014-10-22 | Fdk株式会社 | Transformer |
| CN202650818U (en) * | 2012-03-22 | 2013-01-02 | 一诺科技股份有限公司 | Transformer structure capable of increasing leakage inductance |
| CN104021920A (en) * | 2014-05-27 | 2014-09-03 | 华为技术有限公司 | Coupling inductor and power converter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105575646A (en) | 2016-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Zhu et al. | Novel stator electrically field excited synchronous machines without rare-earth magnet | |
| US20120007461A1 (en) | Wound rotor brushless doubly-fed motor | |
| CN103269140A (en) | Birotor permanent magnet motor applied to wind power generation | |
| CN102005843A (en) | Brushless double-fed wind driven generator and method for controlling brushless double-fed wind driven generating system | |
| CN106253530B (en) | One kind is across two tooth concentratred winding vernier magnetoes | |
| CN107994816A (en) | A kind of electric system and its optimal control method | |
| CN102969860A (en) | Multi-phase brushless double-fed motor and frequency converting control system | |
| CN107394933B (en) | A kind of harmonic starting type Wound brushless double-feeding motor | |
| CN104184291A (en) | Double half-pole asynchronous-start permanent magnet synchronous motor and pole-changing speed- changing method | |
| CN108448759A (en) | A kind of brushless dual-feed motor | |
| CN105575646B (en) | A kind of method for improving variable-frequency transformer leakage inductance | |
| CN204167070U (en) | A kind of Novel variable-frequency transformer improving leakage inductance | |
| CN106787579A (en) | A kind of salient pole wound rotor brushless double feed alternating current generator | |
| CN114123711B (en) | Surface-mounted permanent magnet variable voltage frequency converter based on magnetic field modulation principle and design method | |
| CN100550581C (en) | Intermediate frequency magneto Three-phase Single-layer Windings | |
| Jin et al. | Design and implementation of novel rotor side brushless controller with bidirectional wireless power transmission for doubly-fed machine | |
| CN208316431U (en) | A kind of brushless dual-feed motor | |
| CN100474744C (en) | Variable-speed constant frequency, constant pressure brushless three-phase generator taking power in marching | |
| CN102624123A (en) | Duplex winding rotor brushless double-fed motor | |
| CN110401273A (en) | The fractional-slot concentratred winding design method of low harmony wave | |
| CN110380548A (en) | The low harmonic winding arrangement method of integrated form electric stepless gear | |
| CN114050705B (en) | Electric excitation variable voltage frequency converter based on magnetic field modulation principle and design method | |
| WO2005064767A1 (en) | Permanent magnet motor | |
| CN114123712B (en) | Voltage converter based on double-stator electric excitation synchronous motor design | |
| CN114050704B (en) | Built-in permanent magnet variable voltage frequency converter based on magnetic field modulation principle and design method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |