CN102570859A - 24-pulse rectifier transformer with novel structure - Google Patents
24-pulse rectifier transformer with novel structure Download PDFInfo
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- CN102570859A CN102570859A CN2010105862444A CN201010586244A CN102570859A CN 102570859 A CN102570859 A CN 102570859A CN 2010105862444 A CN2010105862444 A CN 2010105862444A CN 201010586244 A CN201010586244 A CN 201010586244A CN 102570859 A CN102570859 A CN 102570859A
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Abstract
The invention provides a 24-pulse rectifier transformer with a novel structure. A modulator body and four rectifier transformer bodies are installed on one same oil tank, one modulator is used for supplying power to four rectifier transformers, the high pressure shifting phase of each rectifier transformer outputs 6 pulses, and the high pressure shifting phases of the four rectifier transformers output 24 pulses, so that a single24-pulse rectifier transformer of the invention can be formed. The 24-pulse rectifier transformer is high in integration level, low in transformer cost and optimized and economical in a rectification system, reduces occupied space of the transformers, simplifies primary line incoming of a user, and is low in cost and low in user investment.
Description
Technical field
The present invention relates to the transformer technology field, be specifically related to a kind of 24 pulse wave rectifier transformers of new structure, be applicable to the transformer of 24,48,72 and 96 pulse wave rectifier mode systems.
Background technology
The unilateal conduction effect of rectifying device causes the distortion of rectifier transformer alternating magnetic field waveform.Even power supply grid voltage is desirable sine wave, also right and wrong are sine-shaped for the electric current that rectifying device is taken from AC network.Receive the line voltage of rectifying device harmonic wave power pollution influential again to the current waveform that rectifying device is taken from system conversely.The size of distortion is decided by that D.C. capacity accounts for the ratio and the frequency that flows into the harmonic current in the electrical network, i.e. harmonic number of net capacity.In order effectively to eliminate or to alleviate of the influence of the harmonic wave of rectifying device, must take to suppress the measure with harmonic carcellation by relevant requirements to electrical network.Suppressing one of harmonic wave effective way and being increases pulse number through phase shift is carried out in rectifier transformer high-pressure side (modulation high-pressure side or whole become high-pressure side all can).This way can be eliminated the bigger low-order harmonic of amplitude basically.
Generally speaking in order to reach more pulse numbers such as 24 pulse waves and 48 pulse waves, all adopt 2 or many 12 incompatible realizations of pulse wave rectifier transformer group in the industry at present.This system that is combined by separate unit 12 pulse waves, the transformer cost is high, because every transformer all needs a switch and a modulator body and a cooler.The space that simultaneously on-the-spot installation needs is big, and the complicated time of installation is long.Thereby the total system cost is high, and customer investment is big.
Summary of the invention
Technical problem to be solved by this invention is: solve the problem that above-mentioned prior art exists, and provide a kind of transformer degree of integration high, the transformer cost is low, 24 pulse wave rectifier transformers of total system optimization saving, new structure that customer investment is few.
The technical scheme that the present invention adopts is: 24 pulse wave rectifier transformers of this new structure; A modulator body and four whole device bodies that become are installed in the same fuel tank; Supply power for simultaneously four whole devices that become by a modulator; Each whole uprising presses phase shift to export 6 pulse waves, and four whole uprising press phase shift to export 24 pulse waves, form separate unit 24 pulse wave rectifier transformers.
In the technique scheme; The modulator body is made up of basic coil and voltage regulation coil; The winding arrangement position from iron core to outside be followed successively by basic coil---voltage regulation coil, basic coil links to each other with electrical network through bushing, voltage regulation coil links to each other with switch; Switch links to each other with basic coil end, and the basic coil head end and the voltage regulation coil other end are as the modulation high-voltage output end.
In the technique scheme; The whole device that becomes is made up of phase shift coil, high-tension coil and low-voltage coil; Winding arrange from iron core to outside---high-tension coil---low-voltage coil that is followed successively by the phase shift coil; The high-tension coil head end links to each other with the basic coil head end of modulator body, and the end of high-tension coil links to each other with the end of phase shift coil, and phase shift coil head end links to each other with voltage regulation coil; The low-voltage coil three-phase is connected into two positive and negative delta connections, and two groups of low pressure phase angles differ 120 °, forms into two independently working groups.
In the technique scheme, the voltage vector of high-tension coil and phase shift coil two coils and the vector sum that equals voltage regulation coil and basic coil two coils.
Technical scheme of the present invention is to improve the pulse number of separate unit rectifier transformer, and the system by the combination of 2 separate units, 12 pulse wave rectifier transformers changes into by separate unit 24 pulse wave rectifier transformers with original technology.Former separate unit 12 pulse wave rectifier transformers are to be realized by a modulator body and two whole device bodies that become.And separate unit 24 pulse wave rectifier transformers of the present invention are realized by a modulator body and four whole device bodies that become.
The modulator body is made up of basic coil and voltage regulation coil, and basic coil links to each other with electrical network through bushing, from electrical network, obtains current/voltage.Voltage regulation coil links to each other with switch, thereby changes coil turn regulation voltage height through switch.
The whole device body that becomes is made up of phase shift coil, high-tension coil and low-voltage coil, the winding arrangement position from iron core to outside---high-tension coil---low-voltage coil that is followed successively by the phase shift coil.Operation principle: high-tension coil links to each other with the basic coil of modulator body, through the phase shift coil high tension voltage is carried out phase shift then, thereby makes the low voltage voltage angle be different from the voltage of electrical network.
The present invention compares with prior art, has outstanding feature and effect:
With one 24 pulse wave system is example, adopts superiority of the present invention to see the following form:
Prior art the present invention
Contrast project separate unit 12 pulse wave rectifier transformer separate units 24 pulse wave rectifier transformers
Total platform several 21
Transformer switch number 21
Modulator body number 21
Cooler number 21
Transformer high-voltage sleeve pipe quantity 84
Transformer oil how much
Installation need the combination of 2 in place big 1 little
2 of on-the-spot erecting bed amounts, workload is big 1, and workload is few
The transformer degree of integration is low, cost transformer degree of integration high, cost
Brief summary is high, and the total system cost is high, and with low, the total system cost is low, uses
The family investment is big.The family small investment.
Can draw from above contrast: separate unit 24 pulse wave rectifier transformers of the present invention have unrivaled superiority than original technological separate unit 12 pulse wave rectifier transformers.Equally when realizing 48,72 and 96 pulse wave rectifier mode systems separate unit 24 pulse wave rectifier transformers of the present invention than still having superiority by separate unit 12 pulse wave rectifier transformers.Therefore, the cost that the integrated degree of transformer of the present invention is high, reduced transformer has reduced the transformer occupation space, has simplified user's primary side inlet wire, and total system optimization, cost are low, and customer investment is few, has increased enterprise competitiveness.
Description of drawings:
Fig. 1 is a structural representation of the present invention;
Fig. 2 is circuit theory diagrams of the present invention.
The explanation of accompanying drawing mark:
1---the whole device body that becomes, 2---bushing, 3---the modulator body, 4---switch, 5---cooler,
6---basic coil, 7---the whole device body that becomes, 8---voltage regulation coil, 9---high-tension coil,
10---the phase shift coil, 11---low-voltage coil, 12---C phase voltage regulation coil, 13---B phase voltage regulation coil,
14---A phase voltage regulation coil, 15---on load tap changer C phase, 16---on load tap changer B phase,
17---on load tap changer A phase, 18---first low-voltage coil, 19---second low-voltage coil,
20---the 3rd low-voltage coil, 21---the 4th low-voltage coil, 22---the 5th low-voltage coil,
23---the 6th low-voltage coil.
Embodiment:
Referring to Fig. 1, Fig. 2, the present invention changes the system of 2 separate units of former cause, 12 pulse wave rectifier transformers combination into separate unit 24 pulse wave rectifier transformers.Former separate unit 12 pulse wave rectifier transformers are realized by a modulator body and two whole device bodies that become.Separate unit 24 pulse wave rectifier transformers of the present invention are realized by a modulator body and four whole device bodies that become.
The modulator body is made up of basic coil and voltage regulation coil, the winding arrangement position from iron core to outside be followed successively by basic coil---voltage regulation coil.Operation principle: basic coil links to each other with electrical network through bushing, from electrical network, obtains current/voltage.Voltage regulation coil links to each other with switch, changes the voltage height thereby change coil turn through switch.
The whole device body that becomes is made up of phase shift coil, high-tension coil and low-voltage coil, the winding arrangement position from iron core to outside---high-tension coil---low-voltage coil that is followed successively by the phase shift coil.Operation principle: high-tension coil links to each other with the basic coil of modulator body, through the phase shift coil high tension voltage is carried out phase shift then, thereby makes the low voltage voltage angle be different from the voltage of electrical network.
The present invention presses phase shift to export 6 pulse waves through putting in order to uprise, and obtains one 6 whole change of pulse wave, and then the whole change of 6 pulse waves and modulator body of 4 different phase shift angles is placed in the same fuel tank, combines.As shown in Figure 1, supply power for simultaneously four 6 whole changes of pulse wave by a modulation, thereby realize separate unit 24 pulse waves.
Referring to Fig. 2, the basic coil head end of modulator body joins through sleeve pipe and electrical network, the changing of transformation coil turn of voltage regulation coil through switch, thereby the voltage vector that changes voltage regulation coil and basic coil two coils with, reach and change the low pressure output voltage.And the whole high-tension coil head end that becomes the device body links to each other with the basic coil head end of modulator body; The phase shift coil end links to each other with high-tension coil is terminal; Phase shift coil head end links to each other with voltage regulation coil then, promptly the voltage vector of high-tension coil and phase shift coil two coils and the voltage vector that equals voltage regulation coil and basic coil two coils with.The low-voltage coil three-phase is connected into two positive and negative delta connections, makes two groups of low pressure phase angles differ 120 °, is combined into two independently working groups, realizes 6 pulse waves.Be combined into one the 6 whole device body that becomes of pulse wave by phase shift coil, high-tension coil and a low-voltage coil like this.Thereby the number of turn through changing phase shift coil and high-tension coil changes the phase shift angle, like this, just realizes the whole device body that becomes of 6 pulse waves of another phase shift angle.The present invention becomes and a modulator body is placed in the same fuel tank 6 pulse waves of 4 different phase shift angles are whole, combines.As shown in Figure 2, supply power for simultaneously whole change of four different phase shift 6 pulse waves by a modulation, thereby realize separate unit 24 pulse waves.
Referring to Fig. 2; The present invention includes a modulator body 3 and four whole device bodies 7 that become, the modulator body comprises three basic coil CgZg, BgYg, AgXg and three voltage regulation coil: C voltage regulation coil 12, B phase voltage regulation coil 13 mutually, A phase voltage regulation coil 14 and three-phase on load tap changer: on load tap changer C phase 15, on load tap changer B phase 16, on load tap changer A phase 17; Voltage regulation coil 8 links to each other with shunting switch; The lower ends of shunting switch and basic coil 6, and be connected to electrical network O end, as shown in Figure 2; The tap of C phase voltage regulation coil 12 and on load tap changer C 15 link to each other mutually, on load tap changer C mutually 15 with basic coil CgZg lower ends; The tap of B phase voltage regulation coil 13 and on load tap changer B 16 link to each other mutually, on load tap changer B mutually 16 with basic coil BgYg lower ends; The tap of A phase voltage regulation coil 14 and on load tap changer A 17 link to each other mutually, on load tap changer A mutually 17 with basic coil AgXg lower ends; Like this, every phase output voltage of modulator body is the voltage vector sum of voltage regulation coil and basic coil two coils.
Referring to Fig. 2, the present invention also comprises four whole device bodies 7 that become, and each is whole to become device body and include three groups of high-tension coils 9 and three groups of phase shift coils 10 and low-voltage coil 11, and the high-tension coil end links to each other with the phase shift coil end.As shown in Figure 2, as example its annexation is described with first whole device that becomes: the end of A phase high-tension coil A1X1 links to each other with the end of C phase shift phase coil C2Z2; The end of B phase high-tension coil B1Y1 links to each other with the end of A phase shift phase coil A2X2; C phase high-tension coil C1Z1 links to each other with the end of B phase shift phase coil B2Y2.And the head end of high-tension coil links to each other with the output of voltage regulation coil; The voltage vector sum that has so just constituted high-tension coil and phase shift coil two coils equals the voltage vector sum of voltage regulation coil and basic coil two coils.By that analogy, other second whole becomes that device body, the 3rd wholely becomes the device body, the 4th whole structure that becomes the device body is identical with annexation.
Referring to Fig. 2; Each whole device body 7 that becomes of the present invention also comprises 6 groups of low-voltage coils; Four whole device bodies that become just include 24 groups of low-voltage coils, and the three-phase of low-voltage coil is connected into two positive and negative delta connections, makes two groups of low pressure phase angles differ 120 °; Be combined into two independently working groups, realize 6 pulse waves.With first whole 6 groups of low-voltage coils that become device is example; Its annexation is following: first low-voltage coil, 18 head ends of A phase link to each other with the end of B the 3rd low-voltage coil 20 mutually; And the 3rd low-voltage coil 20 head ends of B phase and C 22 terminal linking to each other of the 5th low-voltage coil mutually; The 5th low-voltage coil 22 head ends of C phase and the A end of first low-voltage coil 18 mutually link to each other, and have so just formed an equilateral triangle and have connect method.Also have three groups of low-voltage coils connections to form an anti-delta connection in the device first whole the change; Specifically: the 6th low-voltage coil 23 is terminal continuous mutually with C for second low-voltage coil, 19 head ends of A phase; And C mutually head end and the B of the 6th low-voltage coil 23 end of the 4th low-voltage coil 21 is continuous mutually; Second low-voltage coil 19 is terminal continuous mutually with A for the head end of B phase the 4th low-voltage coil 21, constitutes an anti-delta connection with this, and two leg-of-mutton connections are mutually independently.
24 pulse waves of 24 groups of low-voltage coils of Fig. 2 are exported external rectifier cabinet, and 24 groups of low-voltage coil lead-out terminals are c1, z2, b1, y2, a1, x2, c3, z4, b3, y4, a3, x4, c5, z6, b5, y6, a5, x6, c7, z8, b7, y8, a7, x8.
Claims (4)
1. 24 pulse wave rectifier transformers of a new structure; It is characterized in that: a modulator body and four whole device bodies that become are installed in the same fuel tank; Supply power for simultaneously four whole devices that become by a modulator; Each whole uprising presses phase shift to export 6 pulse waves, and four whole uprising press phase shift to export 24 pulse waves, form separate unit 24 pulse wave rectifier transformers.
2. 24 pulse wave rectifier transformers of new structure according to claim 1; It is characterized in that: the modulator body is made up of basic coil and voltage regulation coil; The winding arrangement position from iron core to outside be followed successively by basic coil---voltage regulation coil, basic coil links to each other with electrical network through bushing, voltage regulation coil links to each other with switch; Switch links to each other with basic coil end, and the basic coil head end and the voltage regulation coil other end are as the modulation high-voltage output end.
3. 24 pulse wave rectifier transformers of new structure according to claim 1; It is characterized in that: the whole device that becomes is made up of phase shift coil, high-tension coil and low-voltage coil; Winding arrange from iron core to outside---high-tension coil---low-voltage coil that is followed successively by the phase shift coil; The high-tension coil head end links to each other with the basic coil head end of modulator body, and the end of high-tension coil links to each other with the end of phase shift coil, and phase shift coil head end links to each other with voltage regulation coil; The low-voltage coil three-phase is connected into two positive and negative delta connections, forms two independently working groups.
4. 24 pulse wave rectifier transformers of new structure according to claim 1 is characterized in that: the voltage vector of high-tension coil and phase shift coil two coils and the voltage vector sum that equals voltage regulation coil and basic coil two coils.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010586244.4A CN102570859B (en) | 2010-12-14 | 2010-12-14 | 24 pulse wave rectifier transformers of new structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010586244.4A CN102570859B (en) | 2010-12-14 | 2010-12-14 | 24 pulse wave rectifier transformers of new structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102570859A true CN102570859A (en) | 2012-07-11 |
| CN102570859B CN102570859B (en) | 2017-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010586244.4A Active CN102570859B (en) | 2010-12-14 | 2010-12-14 | 24 pulse wave rectifier transformers of new structure |
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| Country | Link |
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| CN (1) | CN102570859B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110211785A (en) * | 2019-03-19 | 2019-09-06 | 江苏五洲电力科技有限公司 | A kind of 24 pulse wave rectifier transformer of continuous voltage regulating |
| CN115763014A (en) * | 2022-11-29 | 2023-03-07 | 保定天威集团特变电气有限公司 | Single forty-eight pulse wave rectifier transformer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4493016A (en) * | 1982-10-07 | 1985-01-08 | Westinghouse Electric Corp. | Rectifier transformer |
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2010
- 2010-12-14 CN CN201010586244.4A patent/CN102570859B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110211785A (en) * | 2019-03-19 | 2019-09-06 | 江苏五洲电力科技有限公司 | A kind of 24 pulse wave rectifier transformer of continuous voltage regulating |
| CN115763014A (en) * | 2022-11-29 | 2023-03-07 | 保定天威集团特变电气有限公司 | Single forty-eight pulse wave rectifier transformer |
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| Publication number | Publication date |
|---|---|
| CN102570859B (en) | 2017-03-15 |
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Effective date of registration: 20220324 Address after: 421200 No. 1, transformer village, Baishazhou TBEA, Yanfeng District, Hengyang City, Hunan Province Patentee after: TBEA HUNAN ELECTRICAL CO.,LTD. Address before: Hunan province Hengyang City Baishazhou 421007 Yanfeng District Patentee before: TBEA HENGYANG TRANSFORMERS Co.,Ltd. |