CN102664379A - Equivalent 24 pulse wave non-control rectification DC thawing apparatus - Google Patents
Equivalent 24 pulse wave non-control rectification DC thawing apparatus Download PDFInfo
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- CN102664379A CN102664379A CN2012101794254A CN201210179425A CN102664379A CN 102664379 A CN102664379 A CN 102664379A CN 2012101794254 A CN2012101794254 A CN 2012101794254A CN 201210179425 A CN201210179425 A CN 201210179425A CN 102664379 A CN102664379 A CN 102664379A
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Abstract
The invention discloses an equivalent 24 pulse wave non-control rectification DC thawing apparatus which is composed of a 12 pulse wave rectifier transformer (1), a first three-phase bridge non-control rectifier (2), a second three-phase bridge non-control rectifier (3), a variable-tap parallel reactor (4) and a frequency multiplier circuit (5) which are connected in series, wherein the 12 pulse wave rectifier transformer (1) is provided with a three-phase output end connected with the input end of the first three-phase bridge non-control rectifier (2), and the three-phase output end is connected with the input end of the second three-phase bridge non-control rectifier (3). Two output ends of the variable-tap parallel reactor (4) are correspondingly connected with two input ends of the frequency multiplier circuit (5). The apparatus has the advantages of simple structure, wide thawing applicability, low investment, small occupation area, high cost performance, low pollution on the power grid, and smooth waveform, and is easy to operate and simple to maintain, thereby saving both human resources and material resources.
Description
Technical field
The invention belongs to the electrical engineering technical field, relate in particular to a kind of equivalent 24 pulse waves and do not control the rectification DC de-icing device.
Background technology
The icing phenomenon in winter of transmission line is one of electric power system major natural disasters.Provinces such as Guizhou, Hunan, Hubei, Jiangxi are located in Central-South innerland, and its distinctive topographic structure and weather environmental quality cause the outburst of large tracts of land ice damage frequent.For example the weather that congeals of the continuous low temperature at the beginning of 2008 causes the transmission line large tracts of land icing of southern area, and many basic routing lines are the broken string of falling the tower therefore, causes large-area power outage, brings significant impact to national economy.Behind the ice damages in 2008, for resisting the ice damage of transmission line, China power department R&D institution has developed DC de-icing device in succession transmission line has been carried out ice-melt, to guarantee the safe and stable operation of electrical network.
Present DC de-icing device is common has six pulse wave rectifiers and 12 pulsating wave rectifier system; Be divided into controlled and uncontrollable two kinds of control modes again; In actual moving process, inevitably bring harmonic current to disturb; Increase the noise and the power consumption of ice-melt power transformer, influenced the quality of power supply of electrical network.Along with DC de-icing device the popularizing and outstanding contributions that anti-ice is protected electricity of the heavy ice-covering area of transmission line, how to develop that dc waveform is level and smooth, the littler and economical and practical DC de-icing device of harmonic current is a problem demanding prompt solution.
Summary of the invention
The technical problem that the present invention will solve is: bigger to existing six pulse waves and 12 pulsating wave DC de-icing device AC side harmonic current; Increase the defective of distribution transformer noise and loss; Provide a kind of novel equivalent 24 pulse waves not control the rectification DC de-icing device; To satisfy in the transmission line deicing processes, the harmonic current that reduces the ice-melt power transformer disturbs, and this device is made every effort to small investment, operation and maintenance are simple.
Technical solution of the present invention is; Referring to Fig. 1; It is as shown in Figure 1 that said equivalent 24 pulse waves are not controlled the rectification DC de-icing device, by 12 pulsating wave rectifier transformer 1, first three-phase bridge not control rectifier 2, second three-phase bridge control rectifier 3, become tap shunt reactor 4 and frequency multiplier circuit 5 is not composed in series.In the one row six phase output of wherein said 12 pulsating wave rectifier transformer 1, have three-phase output end to be connected to the not input of control rectifier 2 of said first three-phase bridge, three-phase output end is connected to the not input of control rectifier 3 of said second three-phase bridge in addition.The said first three-phase bridge not output of control rectifier 2 has anodal A and negative pole B; The said second three-phase bridge not output of control rectifier 3 has anodal C and negative pole D.Wherein said first three-phase bridge not control rectifier 2 outputs anodal A and said second three-phase bridge not the anodal C of control rectifier 3 outputs be connected to the input of said change tap shunt reactor 4 respectively; Said first three-phase bridge not control rectifier 2 outputs negative pole B and said second three-phase bridge not the negative pole D of control rectifier 3 outputs do not control the negative pole parallel connection of the output of rectification DC de-icing device as these equivalent 24 pulse waves.Two output correspondences of said change tap shunt reactor 4 are connected to two inputs of said frequency multiplier circuit 5; The output of said frequency multiplier circuit 5 is not controlled the positive pole of the output of rectification DC de-icing device as these equivalent 24 pulse waves.
When of the present invention equivalent 24 pulse waves that constitute were not thus controlled the rectification DC de-icing device and used, for example the 10kV alternating current inputed to 12 pulsating wave rectifier transformer 1 by the input of its 12 pulsating wave rectifier transformer 1 and carries out step-down; Above-mentioned 12 pulsating wave rectifier transformer 1 one side three-phase output ends export one group of low pressure three-phase voltage offer first three-phase bridge not control rectifier 2 carry out rectification, should organize the low pressure three-phase voltage and be transformed into direct current; Another group low pressure three-phase voltage of above-mentioned 12 pulsating wave rectifier transformer 1 opposite side three-phase output end output offer second three-phase bridge not control rectifier 3 carry out rectification, also should organize the low pressure three-phase voltage and be transformed into direct current; First three-phase bridge not the anodal A output level of control rectifier 2 as an input level that becomes tap shunt reactor 4, second three-phase bridge not the anodal C output level of control rectifier 3 as becoming tap shunt reactor 4 another input level; The output voltage that becomes tap shunt reactor 4 offers frequency multiplier circuit 5; The output of frequency multiplier circuit 5 is connected to an end of transmission line as the positive pole of deicing device; First three-phase bridge not the output of control rectifier 2 negative pole B and second three-phase bridge not the negative pole D parallel connection of the output of control rectifier 3 negative pole of not controlling the output of rectification DC de-icing device as these equivalent 24 pulse waves be connected to the other end of transmission line, to implement DC ice melting to this transmission line.
In the said structure, the effect of said 12 pulsating wave rectifier transformer 1 is with after the High Level AC Voltage step-down, provides the six-phase voltage of 30 ° of two groups of corresponding phase angle differences to give not control rectifier 2, second three-phase bridge control rectifier 3 not of first three-phase bridge respectively.And said first three-phase bridge not control rectifier 2, second three-phase bridge not the effect of control rectifier 3 be to convert alternating current into direct current.The effect of said change tap shunt reactor 4 be utilize magnetic balance concern dynamic equilibrium first three-phase bridge not control rectifier 2 and second three-phase bridge not control rectifier 3 output DCs press exchange pulsation.The effect of said frequency multiplier circuit 5 is that the alternating component on the direct voltage is carried out rectification once more, makes the pulse number of former direct voltage double, and direct voltage is more level and smooth.
The invention has the beneficial effects as follows:
1), this apparatus structure is simple; Only utilize 12 pulse wave rectifier transformers, change tap shunt reactor and a spot of diode can realize the effect of 24 pulse wave rectifier circuit; Enforcement is to the ice-melt of 220kV circuit in the transformer station or other electric pressure circuits, and is applied widely;
2), need not 24 pulse wave rectifier transformers, small investment, area occupied is little, cost performance is high;
3), three phase full bridge do not control rectification, processing ease is saved human and material resources, saves time;
4), adopt air-cooled design, do not control rectifier system, Operation and Maintenance is simple;
5), when operation, it is little that AC side is injected mains by harmonics, power factor is high, and is little to electric network pollution; DC side output dc voltage ripple factor is little, and waveform is level and smooth.
Description of drawings
Fig. 1 is the structured flowchart of a specific embodiment of the present invention, is denoted as among the figure:
1-12 pulsating wave rectifier transformer,
2-the first three-phase bridge is control rectifier not,
3-the second three-phase bridge is control rectifier not,
4-change tap shunt reactor,
5-frequency multiplier circuit.
Embodiment
Referring to Fig. 1; Shown in Figure 1 is that the present invention's equivalence 24 pulse waves are not controlled concrete embodiment of rectification DC de-icing device; The 12 pulsating wave rectifier transformer 1 of this embodiment, the ZSS-9100/10 type 9100kVA rectifier transformer that adopts electric branch company of Chinese Hengyang Transformer Co., Ltd., Tebian Electric Co. to produce; First three-phase bridge not control rectifier 2 and second three-phase bridge not control rectifier 3 all adopt Hunan China to economize to converge not control rectifier of ZYAF-1400 type 4MW three-phase bridge that pure Power Tech Corp. Inc. produces; Become the KE-1400/36 type reactor that tap shunt reactor 4 adopts Chinese Hubei Province Yichang Cauer Electronics Co., Ltd. to produce; Frequency multiplier circuit 5 adopts Hunan China to economize the ZYAF-2800 type full-wave rectifying circuit that the pure Power Tech Corp. Inc. of remittance produces.
Said 12 pulsating wave rectifier transformer 1, first three-phase bridge not control rectifier 2, second three-phase bridge not control rectifier 3, become tap shunt reactor 4 and frequency multiplier circuit 5, by above-mentioned technical solution, with reference to shown in Figure 1 being connected in series.Wherein, the side three-phase output end in the row six phase output of 12 pulsating wave rectifier transformer 1 is connected to the not input of control rectifier 2 of first three-phase bridge, and the opposite side three-phase output end is connected to the not input of control rectifier 3 of second three-phase bridge.The first three-phase bridge not output of control rectifier 2 has anodal A and negative pole B; The second three-phase bridge not output of control rectifier 3 has anodal C and negative pole D.First three-phase bridge not control rectifier 2 outputs anodal A and second three-phase bridge not the anodal C of control rectifier 3 outputs be connected to the input that becomes tap shunt reactor 4 respectively; First three-phase bridge not control rectifier 2 outputs negative pole B and second three-phase bridge not the negative pole D parallel connection of control rectifier 3 outputs not control the negative pole of rectification DC de-icing device output as these equivalent 24 pulse waves.Become the corresponding connection of two inputs of two outputs with the frequency multiplier circuit 5 of tap shunt reactor 4; The output of this frequency multiplier circuit 5 promptly becomes the positive pole that these equivalent 24 pulse waves are not controlled rectification DC de-icing device output.
Equivalence 24 pulse waves of the present embodiment of said structure are not controlled the rectification DC de-icing device, are proved to be respond well through analogue test, and esy to use, safe and reliable, reach designing requirement fully.
Claims (1)
1. equivalence 24 pulse waves are not controlled the rectification DC de-icing device; It is characterized in that; It by 12 pulsating wave rectifier transformer (1), first three-phase bridge not control rectifier (2), second three-phase bridge control rectifier (3), become tap shunt reactor (4) and frequency multiplier circuit (5) is not composed in series; In the one row six phase output of wherein said 12 pulsating wave rectifier transformer (1); There is three-phase output end to be connected to the not input of control rectifier (2) of said first three-phase bridge; Three-phase output end is connected to the not input of control rectifier (3) of said second three-phase bridge in addition, and the said first three-phase bridge not output of control rectifier (2) has anodal A and negative pole B; The said second three-phase bridge not output of control rectifier (3) has anodal C and negative pole D, wherein said first three-phase bridge not control rectifier (2) output anodal A and said second three-phase bridge not the anodal C of control rectifier (3) output be connected to the input of said change tap shunt reactor (4) respectively; Said first three-phase bridge is the negative pole B and the not negative pole D parallel connection of control rectifier (3) output of said second three-phase bridge of control rectifier (2) output not, and two output correspondences of said change tap shunt reactor (4) are connected to two inputs of said frequency multiplier circuit (5).
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| CN201210179425.4A CN102664379B (en) | 2012-06-01 | 2012-06-01 | Equivalent 24 pulse wave non-control rectification DC thawing apparatus |
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| CN201210179425.4A CN102664379B (en) | 2012-06-01 | 2012-06-01 | Equivalent 24 pulse wave non-control rectification DC thawing apparatus |
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| CN102664379B CN102664379B (en) | 2014-10-08 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103345280A (en) * | 2013-07-18 | 2013-10-09 | 国家电网公司 | Internal temperature monitoring system of de-icing device |
| CN104836463A (en) * | 2015-04-30 | 2015-08-12 | 华南理工大学 | Mixing transformation system based on three-phase PWM rectification and multi-unit uncontrolled rectification |
| CN112952715A (en) * | 2021-03-29 | 2021-06-11 | 湖南防灾科技有限公司 | High-power low-harmonic direct-current ice melting device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101316033A (en) * | 2008-06-11 | 2008-12-03 | 国网武汉高压研究院 | High-capacity direct current de-icing device |
| RU2376692C1 (en) * | 2008-06-09 | 2009-12-20 | Открытое акционерное общество "Научно-исследовательский институт по передаче электроэнергии постоянным током высокого напряжения" (ОАО "НИИПТ") | Combined plant for glase ice and reactive power compensation |
| CN101847856A (en) * | 2010-05-13 | 2010-09-29 | 湖南省电力公司试验研究院 | Power transmission line direct current ice melting device based on twelve pulse wave uncontrollable rectification |
| CN102340121A (en) * | 2011-09-20 | 2012-02-01 | 湖南省电力公司科学研究院 | Direct current deicing device for ultra high voltage transmission line |
| CN202633876U (en) * | 2012-06-01 | 2012-12-26 | 湖南省电力公司科学研究院 | Equivalent 24-pulse-wave uncontrolled rectifying direct-current ice melting device |
-
2012
- 2012-06-01 CN CN201210179425.4A patent/CN102664379B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2376692C1 (en) * | 2008-06-09 | 2009-12-20 | Открытое акционерное общество "Научно-исследовательский институт по передаче электроэнергии постоянным током высокого напряжения" (ОАО "НИИПТ") | Combined plant for glase ice and reactive power compensation |
| CN101316033A (en) * | 2008-06-11 | 2008-12-03 | 国网武汉高压研究院 | High-capacity direct current de-icing device |
| CN101847856A (en) * | 2010-05-13 | 2010-09-29 | 湖南省电力公司试验研究院 | Power transmission line direct current ice melting device based on twelve pulse wave uncontrollable rectification |
| CN102340121A (en) * | 2011-09-20 | 2012-02-01 | 湖南省电力公司科学研究院 | Direct current deicing device for ultra high voltage transmission line |
| CN202633876U (en) * | 2012-06-01 | 2012-12-26 | 湖南省电力公司科学研究院 | Equivalent 24-pulse-wave uncontrolled rectifying direct-current ice melting device |
Non-Patent Citations (1)
| Title |
|---|
| 谭艳军等: "《基于不可控整流移动式直流融冰装置的研究》", 《华中电力》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103345280A (en) * | 2013-07-18 | 2013-10-09 | 国家电网公司 | Internal temperature monitoring system of de-icing device |
| CN104836463A (en) * | 2015-04-30 | 2015-08-12 | 华南理工大学 | Mixing transformation system based on three-phase PWM rectification and multi-unit uncontrolled rectification |
| CN104836463B (en) * | 2015-04-30 | 2018-01-05 | 华南理工大学 | Mixing transformation system based on three-phase PWM rectification Yu multiple-unit uncontrollable rectifier |
| CN112952715A (en) * | 2021-03-29 | 2021-06-11 | 湖南防灾科技有限公司 | High-power low-harmonic direct-current ice melting device |
| CN112952715B (en) * | 2021-03-29 | 2023-10-03 | 湖南防灾科技有限公司 | High-power low-harmonic direct-current ice melting device |
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Address after: 410007 No. 79 hydroelectric power street, east pond, Hunan, Changsha Patentee after: Electric Power Research Institute, State Grid Hunan Electric Power Company Patentee after: Hunan Xiangdian Electric Power Text & Research Co., Ltd. Patentee after: State Grid Corporation of China Address before: 410007 No. 79 hydroelectric power street, east pond, Hunan, Changsha Patentee before: Science Research Institute of Hunan Electric Power Co., Ltd. Patentee before: Hunan Xiangdian Electric Power Text & Research Co., Ltd. Patentee before: State Grid Corporation of China |
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