CN108335885B - Waveform compensated ferromagnetic resonance voltage stabilizing transformer - Google Patents
Waveform compensated ferromagnetic resonance voltage stabilizing transformer Download PDFInfo
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- CN108335885B CN108335885B CN201810380452.5A CN201810380452A CN108335885B CN 108335885 B CN108335885 B CN 108335885B CN 201810380452 A CN201810380452 A CN 201810380452A CN 108335885 B CN108335885 B CN 108335885B
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- waveform
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- compensation coil
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- compensated
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- 230000000087 stabilizing effect Effects 0.000 title claims abstract description 43
- 230000005350 ferromagnetic resonance Effects 0.000 title claims abstract description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 25
- 230000005291 magnetic effect Effects 0.000 claims abstract description 19
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 10
- DNTFEAHNXKUSKQ-RFZPGFLSSA-N (1r,2r)-2-aminocyclopentane-1-sulfonic acid Chemical compound N[C@@H]1CCC[C@H]1S(O)(=O)=O DNTFEAHNXKUSKQ-RFZPGFLSSA-N 0.000 claims description 7
- 239000003990 capacitor Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 3
- 230000005415 magnetization Effects 0.000 description 10
- 238000004804 winding Methods 0.000 description 8
- 230000003750 conditioning effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/38—Auxiliary core members; Auxiliary coils or windings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2823—Wires
- H01F27/2828—Construction of conductive connections, of leads
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/02—Adaptations of transformers or inductances for specific applications or functions for non-linear operation
- H01F38/06—Adaptations of transformers or inductances for specific applications or functions for non-linear operation for changing the wave shape
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Control Of Electrical Variables (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
The invention provides a waveform compensated ferromagnetic resonance voltage stabilizing transformer, comprising: the device comprises a main iron core, a voltage precision compensation coil, an input/output resonance coil and a waveform compensation coil; the voltage precision compensation coil, the input and output resonance coil and the waveform compensation coil are sleeved on the main iron core; a first magnetic shunt is arranged between the voltage precision compensation coil and the input/output resonance coil, and a second magnetic shunt is arranged between the input/output resonance coil and the waveform compensation coil; the waveform compensation coil has a plurality of taps. The waveform correction method has the advantages that the waveform correction is carried out through the voltage stabilizing transformer, so that the final waveform distortion degree is limited in an allowable range, and the waveform distortion degree is minimized, thereby meeting the requirements of electronic equipment with special requirements on the waveform distortion degree.
Description
Technical Field
The invention relates to a waveform-compensated ferromagnetic resonance voltage stabilizing transformer.
Background
It is known that in order to obtain good voltage stabilizing accuracy, a designer designs the operating point of a ferroresonant voltage stabilizing transformer at the saturation point of the magnetization curve of the core, so that harmonic components generated by ferroresonance are difficult to avoid distortion of the output voltage waveform of the transformer.
Some electronic devices have strict requirements on waveform distortion, and how to compensate and correct the distortion of the output voltage waveform of the transformer caused by harmonic components generated by the ferromagnetic resonance of the voltage stabilizing transformer.
Disclosure of Invention
The waveform-compensated ferromagnetic resonance voltage stabilizing transformer changes the working point of the ferromagnetic resonance voltage stabilizing transformer, so that the working point deviates from the saturation point of an iron core and still keeps the good voltage stabilizing precision of output voltage; to overcome the above-described drawbacks of the prior art.
The invention provides a waveform compensated ferromagnetic resonance voltage stabilizing transformer, comprising: a main iron core 10, an input voltage compensation coil group 20, an output resonance coil group 30, and a waveform compensation coil 40; the input voltage compensation coil group 20, the output resonance coil group 30 and the waveform compensation coil 40 are sleeved on the main iron core 10; a first magnetic shunt 60 is arranged between the input voltage compensation coil group 20 and the output resonance coil group 30, and a second magnetic shunt 70 is arranged between the output resonance coil group 30 and the waveform compensation coil 40; the waveform compensation coil 40 has a plurality of taps.
Further, the present invention provides a waveform-compensated ferroresonant voltage stabilizing transformer, which may further have the following features: the plurality of taps of the waveform compensation coil 40 are equally spaced.
Further, the present invention provides a waveform-compensated ferroresonant voltage stabilizing transformer, which may further have the following features: the number of turns between the plurality of taps of the waveform compensation coil 40 increases in sequence.
Further, the present invention provides a waveform-compensated ferroresonant voltage stabilizing transformer, which may further have the following features: the input voltage compensation coil group 20, the output resonance coil group 30, and the waveform compensation coil 40 are sequentially sleeved on the main iron core 10.
Further, the present invention provides a waveform-compensated ferroresonant voltage stabilizing transformer, which may further have the following features: the main iron core 10 is composed of EI long leg silicon steel sheets.
Further, the present invention provides a waveform-compensated ferroresonant voltage stabilizing transformer, which may further have the following features: the input voltage compensation coil group 20, the output resonance coil group 30 and the waveform compensation coil 40 are sequentially sleeved on the middle leg of the E long leg piece silicon steel sheet of the main iron core 10.
Further, the present invention provides a waveform-compensated ferroresonant voltage stabilizing transformer, which may further have the following features: at the time of debugging, any two taps of the waveform compensation coil 40 are selected as terminals.
Further, the present invention provides a waveform-compensated ferroresonant voltage stabilizing transformer, which may further have the following features: after commissioning, the taps are cut off except for the two taps of the selected waveform compensation coil 40.
Further, the present invention provides a waveform-compensated ferroresonant voltage stabilizing transformer, which may further have the following features: at the time of debugging, the magnetic resistance of the second magnetic shunt 70 is adjusted.
Further, the present invention provides a waveform-compensated ferroresonant voltage stabilizing transformer, which may further have the following features: during debugging, the air gap of the main iron core 10 is adjusted.
Advantageous effects of the invention
The invention provides a waveform-compensated ferromagnetic resonance voltage-stabilizing transformer, which obtains ideal sine wave output voltage through the determination of the design optimal point of a main iron core, a magnetic shunt and a waveform compensation coil and the determination of the optimal waveform during debugging; the waveform correction is carried out through the voltage stabilizing transformer, so that the final waveform distortion degree is limited in an allowable range, and the waveform distortion degree is minimized, thereby meeting the requirements of electronic equipment with special requirements on the waveform distortion degree.
Drawings
Fig. 1 is a front view of a waveform compensated ferroresonant voltage stabilizing transformer.
Fig. 2 is a side view of a waveform compensated ferroresonant voltage stabilizing transformer.
Fig. 3 is a circuit diagram of the waveform-compensated ferroresonant voltage stabilizing transformer after waveform conditioning is completed.
Fig. 4 is a graph comparing an actual engineering magnetization curve with a basic magnetization curve.
Detailed Description
The invention is further described below with reference to the drawings and specific embodiments.
Fig. 1 is a front view of a waveform compensated ferroresonant voltage stabilizing transformer.
Fig. 2 is a side view of a waveform compensated ferroresonant voltage stabilizing transformer.
As shown in fig. 1 and 2, the waveform-compensated ferroresonant voltage stabilizing transformer includes: the main iron core 10, the input voltage compensation coil group 20, the output resonance coil group 30, the waveform compensation coil 40, and the clamp frame 50.
The main iron core 10 is composed of EI long leg silicon steel sheets. In this embodiment, the waveform compensation coil 40 is sleeved at the lower part of the middle leg of the E long leg silicon steel sheet of the main iron core 10, the output resonance coil group 30 is sleeved at the middle part of the middle leg of the E long leg silicon steel sheet of the main iron core 10, and the input voltage compensation coil group 20 is sleeved at the upper part of the middle leg of the E long leg silicon steel sheet of the main iron core 10. After the input voltage compensation coil group 20, the output resonance coil group 30 and the waveform compensation coil 40 are sleeved on the main iron core, the clamping frame 50 clamps and fixes the EI long leg silicon steel sheet to form the main iron core 10.
A first magnetic shunt 60, the voltage stabilizing magnetic shunt, is provided between the input voltage compensation coil set 20 and the output resonant coil set 30. A second magnetic shunt 70, i.e. a waveform compensating magnetic shunt, is provided between the output resonant coil group 30 and the waveform compensating coil 40.
Fig. 3 is a circuit diagram of the waveform-compensated ferroresonant voltage stabilizing transformer after waveform conditioning is completed.
The input voltage compensation coil group 20 includes: a main coil 21 and a secondary voltage compensation coil 22 are input. The input primary winding 21 is also referred to as primary winding. Both the primary main winding 21 and the secondary voltage compensation winding 22 have N taps before the magnetization curve is adjusted. After the adjustment is completed, the 3 taps selected for the primary winding 21 are taken as inputs 1,2, 3, the remaining taps being removed. The secondary voltage compensation coil 22 is selected with 2 taps as terminals 8, 8'.
The output resonant coil group 30 includes: the main coil 31 and the resonance coil 32 are output. The output primary winding 31 is also referred to as the secondary winding. The output main coil 31 and the resonance coil 32 both have N taps before the magnetization curve is adjusted. After the adjustment is completed, the selected 2 taps of the output main coil 31 are taken as output terminals 9, 11, and the remaining taps are removed. The selected 2 taps of the resonant coil 32 are taken as terminals 5, 5', the remaining taps being removed.
The waveform compensation coil 40 also has N taps. After the adjustment is completed, the selected 2 taps of the waveform compensation coil 40 are removed as the remaining taps of the terminals 6, 6'.
The ferromagnetic resonance voltage stabilizing transformer with waveform compensation provided by the invention is characterized in that a proper working point is found on a saturation point of a magnetization curve, namely, the minimum distortion degree of the waveform is ensured. The waveform compensated ferroresonant voltage stabilizing transformer uses an orthogonal design to keep the main core 10 from deep saturation. The number of turns of the waveform compensation coil 40 is also selected using a quadrature design, i.e., different taps of the waveform compensation coil 40 are selected as terminals. Moreover, when different taps of the waveform compensation coil 40 are selected, the magnetic resistance of the second magnetic shunt 70 is also changed due to the change in the coil position where the waveform compensation coil 40 is actually selected. On the basis of the method, the air gap between the E-shaped and I-shaped long leg silicon steel sheets of the main iron core 10 is finely adjusted until the waveform meets the requirement. After the adjustment is completed, the redundant tap of the waveform compensation coil 40 is removed, and the adjustment is completed. Likewise, other coils also have multiple taps, and the number of turns of the coil can be adjusted.
For the terminal selected after the adjustment is completed, the output terminal 8 'of the secondary voltage compensation coil 22 is connected to the terminal 5' of the resonance coil 32. A capacitor a/B is connected in series between terminal 5 of resonant coil 32 and terminal 6 of waveform compensation coil 40. Terminal 5 'of resonant coil 32 and terminal 6' of waveform compensation coil 40 are not connected.
1-2 is the primary at 60Hz input, and 1-3 is the primary at 50Hz input; 8-9 are secondary at 60HZ output. 8-11 are secondary at 50HZ output. 5-6 as a resonant coil (common for 50Hz and 60 Hz: i.e. resonant coil connects a capacitance at 60Hz input voltage, resonant coil connects B muf capacitance at 50Hz input voltage. The values of the capacitances are different).
The taps of the coil may be equally distributed, e.g. with one tap every 3 turns. Of course, the taps may not be equally distributed, such as a first tap set at turn 3, a second tap set at turn 7, a third tap set at turn 12, … …, and so on. This arrangement allows for the selection of different taps to vary the number of turns of the coil and also the first and second magnetic shunts 60, 70.
The working principle of the waveform compensated ferromagnetic resonance voltage stabilizing transformer is as follows:
the design of the waveform compensated ferroresonant voltage stabilizing transformer has the main factors affecting the performance after determining the section of the iron core and other structural parameters: the number of turns of the input main coil 21, the output main coil 31, the resonance coil 32, the secondary voltage compensation coil 22, and the waveform compensation coil 40 depends on the value of the magnetic flux density B. In the range of a certain interval of B, different values are respectively taken, five coils take different values, and the five coils generate a series of turns which are combined in different ways, wherein a group of values are required to be the optimal values, and the group of values are the optimal values of the performance of the waveform-compensated ferromagnetic resonance voltage stabilizing transformer.
The quadrature design in this application is based on the value of Bm, and the input primary winding 21 may take several taps: 211,212,213, … … n; the output main coil 31 can be provided with a plurality of taps 311,312,313 and … … n; the resonant coil 32 may take several taps: 321,322,323, … … n; the secondary voltage compensation coil 22 may be tapped: 221,222,223, … … n. The waveform compensation coil 40 may be tapped as: 401,402,403, … … n. Five different taps were combined and there were various combinations as shown in table 1.
TABLE 1 different combinations of turns of coil are listed in orthogonal tables
Although the correspondence of B to H in the magnetization curve is nonlinear, it may be a linear relationship:from this, the regression equation is deduced: />
According to the difference of B values, the actual engineering magnetization curve is very close to the basic magnetization curve, as shown in fig. 4, the curves L1, L2, L3 are infinitely close to the b=a+bh line, and then L2, L3 are infinitely close to L1, which indicates that: because the orthogonal design method is adopted, the value B is not deviated from the basic magnetization curve of the iron core, and the designed waveform compensated ferromagnetic resonance voltage stabilizing transformer is necessarily the best.
Claims (10)
1. A waveform compensated ferromagnetic resonance voltage stabilizing transformer, characterized by: comprises a main iron core (10), an input voltage compensation coil group (20), an output resonance coil group (30) and a waveform compensation coil (40);
wherein the input voltage compensation coil group (20), the output resonance coil group (30) and the waveform compensation coil (40) are sleeved on the main iron core (10);
a first magnetic shunt (60) is arranged between the input voltage compensation coil group (20) and the output resonance coil group (30), and a second magnetic shunt (70) is arranged between the output resonance coil group (30) and the waveform compensation coil (40);
the waveform compensation coil (40) has a plurality of taps, and when different taps of the waveform compensation coil (40) are selected, the actual applied coil position of the waveform compensation coil (40) changes, changing the magnetic resistance of the second magnetic shunt (70).
2. The waveform compensated ferroresonant voltage stabilizing transformer of claim 1, wherein:
the input voltage compensation coil group comprises an input main coil and a secondary voltage compensation coil; the output resonant coil group comprises an output main coil and a resonant coil.
3. The waveform compensated ferroresonant voltage stabilizing transformer of claim 2, wherein:
any one or more of the input main coil, the secondary voltage compensation coil and the output main coil is provided with a plurality of taps.
4. A waveform-compensated ferroresonant voltage-stabilizing transformer as claimed in claim 3, wherein:
wherein the number of turns among a plurality of taps is the same or the number of turns is gradually increased.
5. The waveform compensated ferroresonant voltage stabilizing transformer of claim 1, wherein:
the input voltage compensation coil group (20), the output resonance coil group (30) and the waveform compensation coil (40) are sequentially sleeved on the main iron core (10).
6. The waveform compensated ferroresonant voltage regulator transformer of claim 5, wherein:
wherein, main iron core (10) comprises EI long foot piece blade silicon steel sheet.
7. The waveform compensated ferroresonant voltage regulator transformer of claim 6, wherein:
the input voltage compensation coil group (20), the output resonance coil group (30) and the waveform compensation coil (40) are sequentially sleeved on the middle pins of the E long-pin piece silicon steel sheet of the main iron core (10).
8. The waveform compensated ferroresonant voltage stabilizing transformer of claim 1, wherein: during debugging, any two taps of the waveform compensation coil (40) are selected as wiring terminals.
9. The waveform compensated ferroresonant voltage stabilizing transformer of claim 1, wherein: after commissioning, the taps are cut off except for the two taps of the selected waveform compensation coil (40).
10. The waveform compensated ferroresonant voltage stabilizing transformer of claim 2, wherein: after the adjustment is completed, 3 taps selected by the input main coil are taken as input ends 1,2 and 3, and the rest taps are removed; the secondary voltage compensation coil is selected with 2 taps as terminals 8, 8'; 2 taps selected by the main output coil are taken as output ends 9 and 11, and the rest taps are removed; the selected 2 taps of the resonance coil are taken as terminals 5 and 5', and the rest taps are removed; the wiring terminal 8' of the secondary voltage compensation coil is connected with the wiring terminal 5 of the resonance coil; a capacitor A/B is connected in series between the wiring terminal 5 of the resonance coil and the wiring terminal 6 of the waveform compensation coil; the terminal 5 'of the resonant coil and the terminal 6' of the waveform compensation coil are not connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810380452.5A CN108335885B (en) | 2018-04-25 | 2018-04-25 | Waveform compensated ferromagnetic resonance voltage stabilizing transformer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810380452.5A CN108335885B (en) | 2018-04-25 | 2018-04-25 | Waveform compensated ferromagnetic resonance voltage stabilizing transformer |
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| Publication Number | Publication Date |
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| CN108335885A CN108335885A (en) | 2018-07-27 |
| CN108335885B true CN108335885B (en) | 2024-03-01 |
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| CN201810380452.5A Active CN108335885B (en) | 2018-04-25 | 2018-04-25 | Waveform compensated ferromagnetic resonance voltage stabilizing transformer |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0056133A2 (en) * | 1981-01-09 | 1982-07-21 | Esquire Inc. | A ferro-resonant-type transformer |
| CN2070945U (en) * | 1990-07-20 | 1991-02-06 | 彭小玲 | Hf magnetic resonance vibration voltage-stabilizing transformer |
| CN2290949Y (en) * | 1996-11-08 | 1998-09-09 | 中国科学院上海原子核研究所 | Large power, low temp raising sine wave a. c manostat |
| CN2341252Y (en) * | 1998-07-13 | 1999-09-29 | 中国科学院上海原子核研究所 | AC/DC compatible three-phase mono-body constant voltage transformer |
| CN1311554A (en) * | 2000-02-28 | 2001-09-05 | 北京市华夏安全设备制造厂 | High accuracy magnetic synthetic voltage stable signal power source screen |
| CN205178888U (en) * | 2015-12-01 | 2016-04-20 | 河北凯翔电气科技股份有限公司 | Ferroresonance formula three -phase AC voltage regulator device |
| CN208225691U (en) * | 2018-04-25 | 2018-12-11 | 上海良治电器技术有限公司 | Ferromagnetic resonance voltage stabilized transformer |
-
2018
- 2018-04-25 CN CN201810380452.5A patent/CN108335885B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0056133A2 (en) * | 1981-01-09 | 1982-07-21 | Esquire Inc. | A ferro-resonant-type transformer |
| CN2070945U (en) * | 1990-07-20 | 1991-02-06 | 彭小玲 | Hf magnetic resonance vibration voltage-stabilizing transformer |
| CN2290949Y (en) * | 1996-11-08 | 1998-09-09 | 中国科学院上海原子核研究所 | Large power, low temp raising sine wave a. c manostat |
| CN2341252Y (en) * | 1998-07-13 | 1999-09-29 | 中国科学院上海原子核研究所 | AC/DC compatible three-phase mono-body constant voltage transformer |
| CN1311554A (en) * | 2000-02-28 | 2001-09-05 | 北京市华夏安全设备制造厂 | High accuracy magnetic synthetic voltage stable signal power source screen |
| CN205178888U (en) * | 2015-12-01 | 2016-04-20 | 河北凯翔电气科技股份有限公司 | Ferroresonance formula three -phase AC voltage regulator device |
| CN208225691U (en) * | 2018-04-25 | 2018-12-11 | 上海良治电器技术有限公司 | Ferromagnetic resonance voltage stabilized transformer |
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| CN108335885A (en) | 2018-07-27 |
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