CN103715947A - Thyristor assembly for soft start of coal mine mechanical-electrical equipment - Google Patents
Thyristor assembly for soft start of coal mine mechanical-electrical equipment Download PDFInfo
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- CN103715947A CN103715947A CN201310718793.6A CN201310718793A CN103715947A CN 103715947 A CN103715947 A CN 103715947A CN 201310718793 A CN201310718793 A CN 201310718793A CN 103715947 A CN103715947 A CN 103715947A
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Abstract
The invention relates to a thyristor assembly for soft start of coal mine mechanical-electrical equipment. The thyristor assembly comprises multiple thyristor units, wherein the thyristor units are mutually connected in series side by side and are respectively connected with each phase of an equipment soft start circuit under a high voltage electrical network. The thyristor assembly is applicable to soft start of the coal mine mechanical-electrical equipment under the 6KV electrical network and the 10KV electrical network. The thyristor assembly is advantaged in that a series voltage division mode is employed, when each thyristor bears an upper half and a lower half in an alternating current sine wave high voltage electrical network, voltage division is realized, alternating current voltage born by each thyristor is a mean value, so the rated voltage of the thyristors during start can satisfy use requirements of equipment in an underground high voltage electrical network. In a higher alternating current electrical network, a two-two thyristor inverted parallel series connection mode is only employed, the quantity of the thyristors increases correspondingly, and use conditions can be satisfied.
Description
Technical field
The present invention relates to Coal Mine Electromechanical Equipment, be specifically related to a kind of thyristor assembly for Coal Mine Electromechanical Equipment soft start.
Background technology
Mining electromechanical equipment soft start mainly comprises the modes such as the starting of stator winding series reactor, Auto-start relief transformer, Y/ Δ control starting and thyristor voltage regulation soft start, wherein, thyristor voltage regulation soft start adopts thyristor inverse parallel combination, uses wider in colliery.But this mode during for low-power equipment effect better, suitablely in low-voltage equipment, use, when in the face of powerful device, due to the raising that electric pressure is required, caused thyristor device rated voltage not reach and required and cannot use.
Summary of the invention
The object of the invention is to overcome the above-mentioned defect of prior art, provide a kind of when starting thyristor rated voltage can meet Underground High-Voltage Power Network in the thyristor assembly for Coal Mine Electromechanical Equipment soft start of equipment instructions for use.
For achieving the above object, thyristor assembly for Coal Mine Electromechanical Equipment soft start provided by the invention, comprise thyristor unit, each thyristor unit comprises two mutual reverse parallel connections thyristor, two resistance and electric capacity together, the first resistance and the first thyristor are parallel with one another, parallel with one another with the second thyristor after the second resistance and capacitances in series.Thyristor unit is provided with a plurality of, mutually arranged in series together, each that then accesses equipment soft starting circuit under high-voltage fence mutually in.
For achieving the above object, thyristor assembly for Coal Mine Electromechanical Equipment soft start under 6KV electrical network provided by the invention, comprise thyristor unit, each thyristor unit comprises two mutual reverse parallel connections thyristor, two resistance and electric capacity together, the first resistance and the first thyristor are parallel with one another, parallel with one another with the second thyristor after the second resistance and capacitances in series, thyristor unit is provided with 9, every by 3 mutual arranged in series in thyristor unit together, then access respectively in the three-phase circuit of equipment soft start under high-voltage fence.
For achieving the above object, thyristor assembly for Coal Mine Electromechanical Equipment soft start under 10KV electrical network provided by the invention, comprise thyristor unit, each thyristor unit comprises two mutual reverse parallel connections thyristor, two resistance and electric capacity together, the first resistance and the first thyristor are parallel with one another, parallel with one another with the second thyristor after the second resistance and capacitances in series, thyristor unit is provided with 15, every by 5 mutual arranged in series in thyristor unit together, then access respectively in the three-phase circuit of equipment soft start under high-voltage fence.
The present invention is for advantage and the good effect of the thyristor assembly of Coal Mine Electromechanical Equipment soft start: owing to adopting the form of series connection dividing potential drop, by thyristor between two anti-and after tandem compound get up, thereby make every thyristor can obtain dividing potential drop while bearing the upper semifocal chord in AC sine wave high-voltage fence, lower semifocal chord, so the alternating voltage that every thyristor bears is all average, thus when starting the rated voltage of thyristor can meet Underground High-Voltage Power Network in equipment instructions for use.And then in higher AC network, as long as adopt thyristor anti-and tandem compound mode between two, the corresponding increase of quantity of thyristor, can meet service condition.
Below in conjunction with embodiment, describe the technical scheme of the thyristor assembly for Coal Mine Electromechanical Equipment soft start provided by the invention in detail.
Accompanying drawing explanation
Fig. 1 is that the present invention is for the circuit theory diagrams of the thyristor assembly of Coal Mine Electromechanical Equipment soft start;
Fig. 2 is the circuit theory diagrams of the thyristor assembly of equipment soft start under 6KV electrical network;
Fig. 3 is the circuit theory diagrams of equipment soft-start thyristor assembly under 10KV electrical network.
Embodiment
With reference to Fig. 1, the thyristor assembly for Coal Mine Electromechanical Equipment soft start provided by the invention, comprises thyristor unit, and each thyristor unit comprises two mutual reverse parallel connections thyristor T1, T2, two resistance R 1, R2 and capacitor C together.The first resistance R 1 and the first thyristor T1 are parallel with one another, parallel with one another with the second thyristor T2 after the second resistance R 2 and capacitor C series connection.Such thyristor unit is provided with a plurality of, mutually arranged in series together, each that then accesses equipment soft starting circuit under high-voltage fence mutually in.
With reference to Fig. 2, for the thyristor assembly of Coal Mine Electromechanical Equipment soft start under 6KV electrical network, above-mentioned thyristor unit is provided with 9, every by 3 mutual arranged in series in thyristor unit together, then access respectively in the three-phase circuit of equipment soft start under high-voltage fence.
With reference to Fig. 3, thyristor assembly for Coal Mine Electromechanical Equipment soft start under 10KV electrical network, above-mentioned thyristor unit is provided with 15, every by 5 mutual arranged in series in thyristor unit together, then access respectively in the three-phase circuit of equipment soft start under high-voltage fence.
As Fig. 1 to Fig. 3, the present invention adopts the form of series connection dividing potential drop for the thyristor assembly of Coal Mine Electromechanical Equipment soft start, by thyristor T1, T2 between two anti-and after tandem compound get up, thereby make every thyristor can obtain dividing potential drop while bearing the upper semifocal chord in AC sine wave high-voltage fence, lower semifocal chord, so the alternating voltage that every thyristor bears is all average.And then in higher AC network, as long as adopt the anti-also tandem compound mode of thyristor T1, T2, the corresponding increase of quantity of thyristor, can meet service condition.
Embodiment recited above is described the preferred embodiment of the present invention, not the spirit and scope of the present invention is limited.Do not departing under the prerequisite of design concept of the present invention; various modification and improvement that this area ordinary person makes technical scheme of the present invention; all should drop into protection scope of the present invention, the technology contents that the present invention asks for protection, is all documented in claims.
Claims (3)
1. the thyristor assembly for Coal Mine Electromechanical Equipment soft start, comprise thyristor unit, each thyristor unit comprises two mutual reverse parallel connections thyristor (T1 together, T2), two resistance (R1, R2) and one electric capacity (C), the first resistance (R1) is parallel with one another with the first thyristor (T1), parallel with one another with the second thyristor (T2) after the second resistance (R2) and electric capacity (C) series connection, it is characterized in that: thyristor unit is provided with a plurality of, arranged in series together mutually, then each that accesses equipment soft starting circuit under high-voltage fence mutually in.
2. the thyristor assembly for Coal Mine Electromechanical Equipment soft start under 6KV electrical network, comprise thyristor unit, each thyristor unit comprises two mutual reverse parallel connections thyristor (T1 together, T2), two resistance (R1, R2) and one electric capacity (C), the first resistance (R1) is parallel with one another with the first thyristor (T1), parallel with one another with the second thyristor (T2) after the second resistance (R2) and electric capacity (C) series connection, it is characterized in that: thyristor unit is provided with 9, every by 3 mutual arranged in series in thyristor unit together, then access respectively in the three-phase circuit of equipment soft start under high-voltage fence.
3. the thyristor assembly for Coal Mine Electromechanical Equipment soft start under 10KV electrical network, comprise thyristor unit, each thyristor unit comprises two mutual reverse parallel connections thyristor (T1 together, T2), two resistance (R1, R2) and one electric capacity (C), the first resistance (R1) is parallel with one another with the first thyristor (T1), parallel with one another with the second thyristor (T2) after the second resistance (R2) and electric capacity (C) series connection, it is characterized in that: thyristor unit is provided with 15, every by 5 mutual arranged in series in thyristor unit together, then access respectively in the three-phase circuit of equipment soft start under high-voltage fence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310718793.6A CN103715947A (en) | 2013-12-20 | 2013-12-20 | Thyristor assembly for soft start of coal mine mechanical-electrical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310718793.6A CN103715947A (en) | 2013-12-20 | 2013-12-20 | Thyristor assembly for soft start of coal mine mechanical-electrical equipment |
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| CN103715947A true CN103715947A (en) | 2014-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310718793.6A Pending CN103715947A (en) | 2013-12-20 | 2013-12-20 | Thyristor assembly for soft start of coal mine mechanical-electrical equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106059396A (en) * | 2016-07-04 | 2016-10-26 | 湖北工业大学 | Soft starter of high-voltage motor |
| CN111338411A (en) * | 2020-03-30 | 2020-06-26 | 科华恒盛股份有限公司 | Alternating current voltage stabilizer and alternating current power supply equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2483879Y (en) * | 2001-03-16 | 2002-03-27 | 鞍山荣信电力电子股份有限公司 | Valve circuit of crystal thyratron in high-voltage static type dynamic reactive power compensating unit |
| CN101404472A (en) * | 2007-06-25 | 2009-04-08 | 刘群 | Low/medium voltage and high voltage motor soft starter composed by three-phase commutation bridge |
| CN101902120A (en) * | 2010-08-20 | 2010-12-01 | 大禹电气科技股份有限公司 | Series voltage-regulating circuit of thyristor |
| CN101958195A (en) * | 2010-09-19 | 2011-01-26 | 中国农业大学 | Arc-less on-load tap-changer for transformer |
| CN102069723A (en) * | 2009-11-20 | 2011-05-25 | 尚德敏 | Power device of electric automobile |
| CN103439640A (en) * | 2013-08-30 | 2013-12-11 | 株洲变流技术国家工程研究中心有限公司 | High-potential state detection device of anti-parallel thyristors |
-
2013
- 2013-12-20 CN CN201310718793.6A patent/CN103715947A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2483879Y (en) * | 2001-03-16 | 2002-03-27 | 鞍山荣信电力电子股份有限公司 | Valve circuit of crystal thyratron in high-voltage static type dynamic reactive power compensating unit |
| CN101404472A (en) * | 2007-06-25 | 2009-04-08 | 刘群 | Low/medium voltage and high voltage motor soft starter composed by three-phase commutation bridge |
| CN102069723A (en) * | 2009-11-20 | 2011-05-25 | 尚德敏 | Power device of electric automobile |
| CN101902120A (en) * | 2010-08-20 | 2010-12-01 | 大禹电气科技股份有限公司 | Series voltage-regulating circuit of thyristor |
| CN101958195A (en) * | 2010-09-19 | 2011-01-26 | 中国农业大学 | Arc-less on-load tap-changer for transformer |
| CN103439640A (en) * | 2013-08-30 | 2013-12-11 | 株洲变流技术国家工程研究中心有限公司 | High-potential state detection device of anti-parallel thyristors |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106059396A (en) * | 2016-07-04 | 2016-10-26 | 湖北工业大学 | Soft starter of high-voltage motor |
| CN111338411A (en) * | 2020-03-30 | 2020-06-26 | 科华恒盛股份有限公司 | Alternating current voltage stabilizer and alternating current power supply equipment |
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Application publication date: 20140409 |