CN203911772U - Pulse width pressure regulating type transformer - Google Patents
Pulse width pressure regulating type transformer Download PDFInfo
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- CN203911772U CN203911772U CN201420213711.2U CN201420213711U CN203911772U CN 203911772 U CN203911772 U CN 203911772U CN 201420213711 U CN201420213711 U CN 201420213711U CN 203911772 U CN203911772 U CN 203911772U
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- 230000001105 regulatory effect Effects 0.000 title claims abstract description 26
- 239000003990 capacitor Substances 0.000 claims abstract description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000004804 winding Methods 0.000 claims description 166
- 230000007935 neutral effect Effects 0.000 claims description 3
- 241000283080 Proboscidea <mammal> Species 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
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Abstract
The utility model relates to a transformer, concretely to a pulse width pressure regulating type transformer, and solves the problems of complex structure and low reliability of a present transformer. The pulse width pressure regulating type transformer comprises a main iron core and an regulating iron core which are integrated, a main first coil and a main secondary coil installed on the main iron core, a regulating first coil and a regulating secondary coil installed on the regulating iron core, first to third capacitors, a three-phase AC contactor, an electronic device capable of turning off electric power, and a three-phase rectifier bridge composed of first to sixth diodes. The main first coil comprises an A-phase main first coil, a B-phase main first coil, and a C-phase main first coil; the main secondary coil comprises an A-phase main secondary coil, a B-phase main secondary coil, and a C-phase main secondary coil; the regulating first coil comprises an A-phase regulating first coil, a B-phase regulating first coil, and a C-phase regulating first coil. The pulse width pressure regulating type transformer is suitable for various fields.
Description
Technical field
The utility model relates to transformer, specifically a kind of pulse wide voltage-regulation type transformer.
Background technology
Transformer in actual applications, need to carry out pressure regulation according to application requirements.Existing transformer, because self structure is limit, need to carry out pressure regulation by on-load voltage regulation and series transformer pressure regulation.On-load voltage regulation refers on a winding of transformer extracts tap out, and utilizes on load tap changer to change the number of turn of a winding, changes thus the output voltage of transformer.Series transformer pressure regulation refers to a winding of main transformer is connected with power supply, and the secondary winding of main transformer is connected with the secondary winding of series transformer, by being connected with a winding of series transformer with tap winding of main transformer, then by conversion, with the tap of tap winding, change the output voltage of main transformer simultaneously.Yet practice shows, no matter is on-load voltage regulation or series transformer pressure regulation, all has the problem that pressure adjusting structure is complicated, reliability is low.Based on this, be necessary to invent a kind of brand-new transformer, the problems referred to above that exist to solve existing transformer.
Summary of the invention
The utility model, in order to solve existing transformer regulating complex structure, problem that reliability is low, provides a kind of pulse wide voltage-regulation type transformer.
The utility model is to adopt following technical scheme to realize: pulse wide voltage-regulation type transformer, comprises the main core being combined into one and regulate three-phase commutation bridge unshakable in one's determination, that be installed in winding of master and main secondary winding on main core, be installed in the winding of adjusting regulating on iron core and regulate secondary winding, first-, tri-capacitors, three-phase ac contactor, can turn-off power electronic device, be comprised of first-, six diodes;
Winding of described master comprises an A main winding, a B main winding, a C main winding mutually mutually mutually;
Described main secondary winding comprises the mutually main secondary winding of A, the mutually main secondary winding of B, the mutually main secondary winding of C;
Winding of described adjusting comprises that A regulates winding, a B to regulate mutually winding, a C to regulate mutually winding one time mutually;
Described adjusting secondary winding comprises that A regulates secondary winding, B to regulate mutually secondary winding, C to regulate mutually secondary winding mutually;
The A mutually head end of a main winding regulates the tail end of a winding to be connected with A mutually; The B mutually head end of a main winding regulates the tail end of a winding to be connected with B mutually; The C mutually head end of a main winding regulates the tail end of a winding to be connected with C mutually;
A regulates the head end of a winding to be connected with the tail end that C leads a winding mutually mutually, and this tie point is as A phase one secondary input end; B regulates the head end of a winding to be connected with the tail end that A leads a winding mutually mutually, and this tie point is as B phase one secondary input end; C regulates the head end of a winding to be connected with the tail end that B leads a winding mutually mutually, and this tie point is as C phase one secondary input end;
The tail end of the tail end of the tail end of the mutually main secondary winding of A, the mutually main secondary winding of B, the mutually main secondary winding of C links together, and this tie point is as neutral point;
The head end of the mutually main secondary winding of A regulates the tail end of secondary winding to be connected with B mutually, and this tie point is as A phase secondary output; The head end of the mutually main secondary winding of B regulates the tail end of secondary winding to be connected with C mutually, and this tie point is as B phase secondary output; The head end of the mutually main secondary winding of C regulates the tail end of secondary winding to be connected with A mutually, and this tie point is as C phase secondary output;
B regulates the head end of secondary winding as A phase adjustable side mutually; C regulates the head end of secondary winding as B phase adjustable side mutually; A regulates the head end of secondary winding as C phase adjustable side mutually;
The two ends of the first capacitor are connected with B phase secondary output with A phase adjustable side respectively; The two ends of the second capacitor are connected with C phase secondary output with B phase adjustable side respectively; The two ends of the 3rd capacitor are connected with A phase secondary output with C phase adjustable side respectively;
One end of three groups of contacts of three-phase ac contactor is connected with A phase adjustable side, B phase adjustable side, C phase adjustable side respectively; The other end of three groups of contacts of three-phase ac contactor links together;
Three ac input ends of three-phase commutation bridge are connected with A phase adjustable side, B phase adjustable side, C phase adjustable side respectively; The direct current positive output end of three-phase commutation bridge is connected with the collector electrode that can turn-off power electronic device; The direct current negative output terminal of three-phase commutation bridge is connected with the emitter that can turn-off power electronic device.
During work, the base stage that can turn-off power electronic device is connected with PWM controller, and by A, a secondary input end, B phase one secondary input end, C phase one secondary input end are connected with three outputs of three-phase alternating-current supply respectively mutually.Specific works process is as follows: first, a main winding and a winding of adjusting produce basic electromotive force and magnetic flux, and the initial phase angular difference between main secondary winding and adjusting secondary winding is 60 °.Then, by PWM controller, controlling the conducting pulse duration can turn-off power electronic device increases gradually.Increase gradually along with conducting pulse duration, the phase voltage of three ac input ends of three-phase commutation bridge (being the phase voltage of A phase adjustable side, B phase adjustable side, C phase adjustable side) reduces gradually, phase angle difference between main secondary winding and adjusting secondary winding reduces gradually, and the phase voltage of A phase secondary output, B phase secondary output, C phase secondary output raises thus gradually.When turn-offing the conducting pulse duration of power electronic device while increasing to maximum, the phase voltage of three ac input ends of three-phase commutation bridge (being the phase voltage of A phase adjustable side, B phase adjustable side, C phase adjustable side) is down to close to zero, phase angle difference between main secondary winding and adjusting secondary winding reduces to 30 °, and the phase voltage of A phase secondary output, B phase secondary output, C phase secondary output raises 15% thus.Subsequently, closed three-phase ac contactor, the phase voltage of A phase secondary output, B phase secondary output, C phase secondary output remains on currency thus.In this process, because first-, tri-capacitors are connected with adjusting secondary winding with main secondary winding, made when moment, shutoff can be turn-offed power electronic device, main secondary winding and adjusting secondary winding can be by first-, tri-capacitors formation continuous current circuits.Based on said process, compare with existing transformer, pulse wide voltage-regulation type transformer based described in the utility model is in brand new, realize the conducting pulse duration can turn-off power electronic device by regulating and regulated the phase angle difference between main secondary winding and adjusting secondary winding, effectively simplified thus pressure adjusting structure, and effectively improved reliability, thereby efficiently solve existing transformer regulating complex structure, problem that reliability is low.
The utility model is rational in infrastructure, it is ingenious to design, and efficiently solves existing transformer regulating complex structure, problem that reliability is low, is applicable to various fields.
Accompanying drawing explanation
Fig. 1 is winding of master of the present utility model and the structural representation that regulates a winding.
Fig. 2 is main secondary winding of the present utility model and the structural representation that regulates secondary winding.
Embodiment
Pulse wide voltage-regulation type transformer, comprises the main core that is combined into one and regulates three-phase commutation bridge unshakable in one's determination, that be installed in winding of master and main secondary winding on main core, be installed in the winding of adjusting regulating on iron core and regulate secondary winding, first-, tri-capacitor C01-C03, three-phase ac contactor K1, can turn-off power electronic device T1, be comprised of first-, six diode D1-D6;
Winding of described master comprises A main winding Wa1, a B main winding Wb1, an a C main winding Wc1 mutually mutually mutually;
Described main secondary winding comprises the mutually main secondary winding Wa10 of A, the mutually main secondary winding Wb10 of B, the mutually main secondary winding Wc10 of C;
Winding of described adjusting comprises that A regulates winding Wa2, a B to regulate mutually winding Wb2, a C to regulate mutually winding Wc2 one time mutually;
Described adjusting secondary winding comprises that A regulates secondary winding Wa20, B to regulate mutually secondary winding Wb20, C to regulate mutually secondary winding Wc20 mutually;
The A mutually head end of a main winding Wa1 regulates the tail end of a winding Wa2 to be connected with A mutually; The B mutually head end of a main winding Wb1 regulates the tail end of a winding Wb2 to be connected with B mutually; The C mutually head end of a main winding Wc1 regulates the tail end of a winding Wc2 to be connected with C mutually;
A regulates the head end of a winding Wa2 to be connected with the tail end that C leads a winding Wc1 mutually mutually, and this tie point is as A phase one secondary input end A1; B regulates the head end of a winding Wb2 to be connected with the tail end that A leads a winding Wa1 mutually mutually, and this tie point is as B phase one secondary input end B1; C regulates the head end of a winding Wc2 to be connected with the tail end that B leads a winding Wb1 mutually mutually, and this tie point is as C phase one secondary input end C1;
The tail end of the tail end of the tail end of the mutually main secondary winding Wa10 of A, the mutually main secondary winding Wb10 of B, the mutually main secondary winding Wc10 of C links together, and this tie point is as neutral point O;
The head end of the mutually main secondary winding Wa10 of A regulates the tail end of secondary winding Wb20 to be connected with B mutually, and this tie point is as A phase secondary output a1; The head end of the mutually main secondary winding Wb10 of B regulates the tail end of secondary winding Wc20 to be connected with C mutually, and this tie point is as B phase secondary output b1; The head end of the mutually main secondary winding Wc10 of C regulates the tail end of secondary winding Wa20 to be connected with A mutually, and this tie point is as C phase secondary output c1;
B regulates the head end of secondary winding Wb20 as A phase adjustable side a0 mutually; C regulates the head end of secondary winding Wc20 as B phase adjustable side b0 mutually; A regulates the head end of secondary winding Wa20 as C phase adjustable side c0 mutually;
The two ends of the first capacitor C01 are connected with B phase secondary output b1 with A phase adjustable side a0 respectively; The two ends of the second capacitor C02 are connected with C phase secondary output c1 with B phase adjustable side b0 respectively; The two ends of the 3rd capacitor C03 are connected with A phase secondary output a1 with C phase adjustable side c0 respectively;
One end of three groups of contacts of three-phase ac contactor K1 is connected with A phase adjustable side a0, B phase adjustable side b0, C phase adjustable side c0 respectively; The other end of three groups of contacts of three-phase ac contactor K1 links together;
Three ac input ends of three-phase commutation bridge are connected with A phase adjustable side a0, B phase adjustable side b0, C phase adjustable side c0 respectively; The direct current positive output end of three-phase commutation bridge is connected with the collector electrode that can turn-off power electronic device T1; The direct current negative output terminal of three-phase commutation bridge is connected with the emitter that can turn-off power electronic device T1.
While specifically implementing, described main core and adjusting iron core are three pillar type iron core, and main core forms sphere of movements for the elephants type structure with adjusting vertical cartel unshakable in one's determination; The horizontal yoke area of section in centre of main core is 1:1 with the ratio of column area of section; Regulating the horizontal yoke area of section in centre unshakable in one's determination and the ratio of column area of section is 1:1.The described power electronic device T1 that turn-offs is IGBT.The number of turn of a main winding is 1:1 with regulating the ratio of the number of turn of a winding; The number of turn of main secondary winding is 1:1 with regulating the ratio of the number of turn of secondary winding.
Claims (4)
1. a pulse wide voltage-regulation type transformer, is characterized in that: comprise the main core being combined into one and regulate three-phase commutation bridge unshakable in one's determination, that be installed in winding of master and main secondary winding on main core, be installed in the winding of adjusting regulating on iron core and regulate secondary winding, first-, tri-capacitors (C01-C03), three-phase ac contactor (K1), can turn-off power electronic device (T1), be comprised of first-, six diodes (D1-D6);
Winding of described master comprises that a main winding (Wa1), B lead a winding (Wb1), a C main winding (Wc1) mutually to A mutually mutually;
Described main secondary winding comprises the mutually main secondary winding of A (Wa10), the mutually main secondary winding of B (Wb10), the mutually main secondary winding of C (Wc10);
Winding of described adjusting comprises that A regulates a winding (Wa2), B to regulate mutually a winding (Wb2), C to regulate mutually a winding (Wc2) mutually;
Described adjusting secondary winding comprises that A regulates secondary winding (Wa20), B to regulate mutually secondary winding (Wb20), C to regulate mutually secondary winding (Wc20) mutually;
The A mutually head end of a main winding (Wa1) regulates the tail end of a winding (Wa2) to be connected with A mutually; The B mutually head end of a main winding (Wb1) regulates the tail end of a winding (Wb2) to be connected with B mutually; The C mutually head end of a main winding (Wc1) regulates the tail end of a winding (Wc2) to be connected with C mutually;
A regulates the head end of a winding (Wa2) to be connected with the tail end that C leads a winding (Wc1) mutually mutually, and this tie point is as A phase one secondary input end (A1); B regulates the head end of a winding (Wb2) to be connected with the tail end that A leads a winding (Wa1) mutually mutually, and this tie point is as B phase one secondary input end (B1); C regulates the head end of a winding (Wc2) to be connected with the tail end that B leads a winding (Wb1) mutually mutually, and this tie point is as C phase one secondary input end (C1);
The tail end of the mutually main secondary winding of tail end, C (Wc10) of the mutually main secondary winding of tail end, B (Wb10) of the mutually main secondary winding of A (Wa10) links together, and this tie point is as neutral point (O);
The head end of the mutually main secondary winding of A (Wa10) regulates the tail end of secondary winding (Wb20) to be connected with B mutually, and this tie point is as A phase secondary output (a1); The head end of the mutually main secondary winding of B (Wb10) regulates the tail end of secondary winding (Wc20) to be connected with C mutually, and this tie point is as B phase secondary output (b1); The head end of the mutually main secondary winding of C (Wc10) regulates the tail end of secondary winding (Wa20) to be connected with A mutually, and this tie point is as C phase secondary output (c1);
B regulates the head end of secondary winding (Wb20) as A phase adjustable side (a0) mutually; C regulates the head end of secondary winding (Wc20) as B phase adjustable side (b0) mutually; A regulates the head end of secondary winding (Wa20) as C phase adjustable side (c0) mutually;
The two ends of the first capacitor (C01) are connected with B phase secondary output (b1) with A phase adjustable side (a0) respectively; The two ends of the second capacitor (C02) are connected with C phase secondary output (c1) with B phase adjustable side (b0) respectively; The two ends of the 3rd capacitor (C03) are connected with A phase secondary output (a1) with C phase adjustable side (c0) respectively;
One end of three groups of contacts of three-phase ac contactor (K1) is connected with A phase adjustable side (a0), B phase adjustable side (b0), C phase adjustable side (c0) respectively; The other end of three groups of contacts of three-phase ac contactor (K1) links together;
Three ac input ends of three-phase commutation bridge are connected with A phase adjustable side (a0), B phase adjustable side (b0), C phase adjustable side (c0) respectively; The direct current positive output end of three-phase commutation bridge is connected with the collector electrode that can turn-off power electronic device (T1); The direct current negative output terminal of three-phase commutation bridge is connected with the emitter that can turn-off power electronic device (T1).
2. pulse wide voltage-regulation type transformer according to claim 1, is characterized in that: described main core and adjusting iron core are three pillar type iron core, and main core and adjusting vertical cartel formation unshakable in one's determination sphere of movements for the elephants type structure; The horizontal yoke area of section in centre of main core is 1:1 with the ratio of column area of section; Regulating the horizontal yoke area of section in centre unshakable in one's determination and the ratio of column area of section is 1:1.
3. pulse wide voltage-regulation type transformer according to claim 1 and 2, is characterized in that: the described power electronic device (T1) of turn-offing is for IGBT.
4. pulse wide voltage-regulation type transformer according to claim 1 and 2, is characterized in that: the number of turn of a main winding is 1:1 with regulating the ratio of the number of turn of a winding; The number of turn of main secondary winding is 1:1 with regulating the ratio of the number of turn of secondary winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420213711.2U CN203911772U (en) | 2014-04-29 | 2014-04-29 | Pulse width pressure regulating type transformer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420213711.2U CN203911772U (en) | 2014-04-29 | 2014-04-29 | Pulse width pressure regulating type transformer |
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| Publication Number | Publication Date |
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| CN203911772U true CN203911772U (en) | 2014-10-29 |
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| CN201420213711.2U Expired - Fee Related CN203911772U (en) | 2014-04-29 | 2014-04-29 | Pulse width pressure regulating type transformer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103944406A (en) * | 2014-04-29 | 2014-07-23 | 国家电网公司 | Pulse width voltage regulating type transformer |
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2014
- 2014-04-29 CN CN201420213711.2U patent/CN203911772U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103944406A (en) * | 2014-04-29 | 2014-07-23 | 国家电网公司 | Pulse width voltage regulating type transformer |
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| Date | Code | Title | Description |
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| 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: 20141029 |