CN202949362U - Polarity conversion device of DC high-voltage cascade generator - Google Patents
Polarity conversion device of DC high-voltage cascade generator Download PDFInfo
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- CN202949362U CN202949362U CN 201220689663 CN201220689663U CN202949362U CN 202949362 U CN202949362 U CN 202949362U CN 201220689663 CN201220689663 CN 201220689663 CN 201220689663 U CN201220689663 U CN 201220689663U CN 202949362 U CN202949362 U CN 202949362U
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Abstract
The utility model discloses a polarity conversion device of a DC high-voltage cascade generator, which comprises a polarity conversion silicon stack column, a polarity conversion motor, a gearbox and a shaft coupling. The polarity conversion motor and the gearbox are connected with each other. The gearbox and the polarity conversion silicon stack column are connected with each other through the shaft coupling. The polarity conversion silicon stack column comprises an insulating outer cylinder, an insulating inner cylinder and a silicon stack module. The silicon stack module is fixed onto the insulating inner cylinder. Due to the adoption of the mechanical-conversion and motor-drive structure, the rapid conversion can be realized by means of the polarity conversion device. Meanwhile, the structure of the polarity conversion device is good in sealing performance, wherein the oil leakage is not easy to occur. The polarity conversion device also has the advantages of simple structure, lower cost, stable performance and simple maintenance.
Description
Technical field
The utility model relates to the power technology field, is specifically related to high direct voltage tandem generator polar converter.
Background technology
The rapid economic development of China has promoted the fast development of China's Electric Power Industry, and the electric pressure of China Power Grids progressively improves, and electric pressure marches to 1100kV from 750kV at present.Country is also more and more higher for the requirement of power grid security, therefore, also just has higher requirement for the high voltage testing equipment that detects the power equipment performance.Particularly in recent years, development along with power electronic technology, high voltage direct current transmission also emerges rapidly, also require more and more higher for the research of direct current transportation equipment and the ability of product export test, so, also have higher requirement for the polarity conversion speed of high direct voltage tandem generator in test.
According to the IEC standard, the direct-current polarity backing propeller test requires from what a polarity of certain test voltage grade was transformed into another polarity to be no more than 2 minutes total time, domestic manufacturer has proposed to be no more than the requirement of 1 minute, this just needs the mechanical action time of polar converter to shorten as far as possible, satisfies the requirement of polarity inversion total time with this.
High direct voltage tandem generator in the past carries out polarity inversion test, adopts two can not polar exchanging DC voltage generator be used in conjunction with, namely an output positive voltage, export negative voltage for one.This mode not only cost is very high, and positive polarity output voltage and negative polarity output voltage all are connected on test product, be not pressurized on the voltage generator of negative polarity when preventing that test product from adding positive voltage, be not pressurized on the voltage generator of positive polarity when adding negative voltage, also must install the voltage spacer assembly additional, this has just more increased the risk of cost and test.
People had invented the polar converter of hydraulic control afterwards, and this device can be realized the fast polarity conversion of DC voltage generator, has solved the problems referred to above.But also there are some shortcomings in this implementation, hydraulic system is comparatively complicated, requirement to manufacturing process, hydraulic oil, hydraulic pump and each hydraulic valve is all higher, later maintenance is difficulty comparatively, in case leakage of oil is difficult to thoroughly solve, and often occurs the situation that hydraulic oil is revealed in the system of operation at present.In addition, dc high voltage can be added on the control piper of HYDRAULIC CONTROL SYSTEM in process of the test, and is higher for the requirement of the materials such as fluid pressure line.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of high direct voltage tandem generator polar converter, solved the problem of fast polarity conversion by the mode of this simple and reliable mechanical rotation, can realize quick conversion, solved Leakage, and this device stable and reliable operation, safeguard simple.
The utility model adopts following technical scheme:
A kind of high direct voltage tandem generator polar converter comprises polarity conversion silicon stack post, polarity conversion motor, transmission case, shaft coupling, and described polarity conversion motor is connected with transmission case, and transmission case is connected by shaft coupling with polarity conversion silicon stack post; Described polarity conversion silicon stack post comprises insulation urceolus, insulation inner core, silicon stack module and high voltage silicon stack, and described silicon stack module is fixed on the insulation inner core.
Further, described silicon stack module is composed in series by several high voltage silicon stacks.
Further, described insulation inner core and insulation urceolus all adopt the expoxy glass fiber tube.
Further, the two ends of described silicon stack module are provided with grading ring and equal pressure cap.
The utility model patent adopts mechanical type conversion and motor dragging structure owing to having adopted above technical scheme, can realize quick conversion, and this kind sealing structure performance is good, is not easy leakage of oil; Simple in structure, reduced cost; Stable performance is safeguarded simple.
Below in conjunction with accompanying drawing, a kind of high direct voltage tandem generator polar converter of the present utility model is described further.
Description of drawings
Fig. 1 (a) and Fig. 1 (b) are respectively positive polarity state and the negative polarity state diagram of a kind of high direct voltage tandem of the utility model generator polar converter;
Fig. 2 is the structural representation of a kind of high direct voltage tandem of the utility model generator polar converter.
In figure, each mark is as follows: 1 polarity conversion silicon stack post, and 2 polarity conversion motors, 3 transmission cases, 4 insulation inner cores, 5 insulation urceolus, 6 high voltage silicon stack modules, 7 shaft couplings, 8 high voltage silicon stacks, 9 positive polaritys are spacing, and 10 negative polarity are spacing, 11 grading rings, 12 equal pressure caps.
Embodiment
A kind of high direct voltage tandem generator polar converter comprises polarity conversion silicon stack post 1, polarity conversion motor 2, transmission case 3, shaft coupling 7, and described polarity conversion motor 2 is connected with transmission case 3, and transmission case 3 is connected by shaft coupling 7 with polarity conversion silicon stack post 1; Described polarity conversion silicon stack post 1 comprises insulation urceolus 5, insulation inner core 4, silicon stack module 6 and high voltage silicon stack 8, and described silicon stack module 6 is fixed on insulation inner core 4.Described silicon stack module 6 is composed in series by several high voltage silicon stacks 8.Described high voltage silicon stack 8 inside by parallel connection the silicon particle of grading resistor form.
Adopt polarity conversion motor 2 that the power of polar converter is provided, slow down by transmission case 3, be delivered on the insulation inner core 4 of first segment polarity conversion silicon stack post 1 through shaft coupling 7 from the power of transmission case 3 outputs, drive 4 rotations of insulation inner core, be fixed on the and then rotation of silicon stack module 6 on insulation inner core 4, both can have realized the fast polarity conversion.Silicon stack module 6 contacts by the metal track of installing on contact roller and insulation inner core 4, and silicon stack module 6 is achieved series connection.The inside of silicon stack module 6 is composed in series by branched high voltage silicon stack 8.The two ends of silicon stack module 6 are provided with grading ring 11 and equal pressure caps 12, grading ring 11 and equal effects of pressure cap 12 be for make silicon stack module 6 joints field intensity even, put problem with the office that reduces in DC high potential test.
During use, polarity conversion motor 2 both can have been realized the fast polarity conversion by the positive and reverse return turnback.
Insulation inner core 4 and the insulation urceolus 5 of polarity conversion silicon stack post 1 inside all adopt the expoxy glass fiber tube to process, and polarity conversion silicon stack post 1 cylinder is also to be processed by the expoxy glass fiber tube, and surface lacquer is processed.The upper lower flange of polarity conversion silicon stack post 1 is the stainless steel metal flange, and internal connection line is copper cash.Metal guide rail and contact roller process by copper.Silicon stack module 6 is in when design, consider the problem of voltage skewness after the series connection of silicon example, thus high voltage silicon stack 8 inside by parallel connection the silicon particle of grading resistor form.All taked all to press measure with the problem of innings putting in reducing DC high potential test in the polarity conversion silicon stack post 1 inner local field strength higher place of might causing.
The high voltage direct current tandem generator polar converter that illustrates in the utility model, primary structure is comprised of metal material and epoxy insulation material, and owing to will using in high-tension testing apparatus, the inner injection insulating oil that needs is to improve the withstand voltage level of inner member.
Above-described embodiment is described preferred implementation of the present utility model; be not that scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model all should fall in the definite protection range of the utility model claims.
Claims (4)
1. high direct voltage tandem generator polar converter, comprise polarity conversion silicon stack post (1), polarity conversion motor (2), transmission case (3), shaft coupling (7), it is characterized in that: described polarity conversion motor (2) is connected with transmission case (3), and transmission case (3) is connected by shaft coupling (7) with polarity conversion silicon stack post (1); Described polarity conversion silicon stack post (1) comprises insulation urceolus (5), insulation inner core (4) and silicon stack module (6), and described silicon stack module (6) is fixed on insulation inner core (4).
2. high direct voltage tandem generator polar converter according to claim 1, it is characterized in that: described silicon stack module (6) is composed in series by several high voltage silicon stacks (8).
3. high direct voltage tandem generator polar converter according to claim 1 is characterized in that: described insulation inner core (4) and insulation urceolus (5) all adopt the expoxy glass fiber tube.
4. high direct voltage tandem generator polar converter according to claim 1 is characterized in that: the two ends of described silicon stack module (6) are provided with grading ring (11) and equal pressure caps (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220689663 CN202949362U (en) | 2012-12-13 | 2012-12-13 | Polarity conversion device of DC high-voltage cascade generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220689663 CN202949362U (en) | 2012-12-13 | 2012-12-13 | Polarity conversion device of DC high-voltage cascade generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202949362U true CN202949362U (en) | 2013-05-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220689663 Expired - Lifetime CN202949362U (en) | 2012-12-13 | 2012-12-13 | Polarity conversion device of DC high-voltage cascade generator |
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| Country | Link |
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| CN (1) | CN202949362U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103424583A (en) * | 2013-08-13 | 2013-12-04 | 中国电力科学研究院 | Automatic polarity-changing direct current boosting device |
| CN105811768A (en) * | 2016-03-10 | 2016-07-27 | 清华大学 | DC high-voltage polarity reversal device |
| CN106249078A (en) * | 2016-08-09 | 2016-12-21 | 苏州华电电气股份有限公司 | A kind of high tension generator silicon stack polar transfer test device |
| CN106357106A (en) * | 2016-09-18 | 2017-01-25 | 华中科技大学 | Direct-current high-voltage generator with quick polarity conversion function and method implemented by direct-current high-voltage generator |
| CN108435422A (en) * | 2018-03-23 | 2018-08-24 | 太以环境科技（北京）有限公司 | Atmospheric ionization mode selector |
| CN110441665A (en) * | 2019-09-06 | 2019-11-12 | 云南电网有限责任公司电力科学研究院 | In situ DC pressure resistance and local discharge test device for ± 500kV converter station |
| CN111627623A (en) * | 2020-05-28 | 2020-09-04 | 西安交通大学 | Grading ring assembly for closed impulse voltage generator |
| CN116699206A (en) * | 2023-07-28 | 2023-09-05 | 国网江苏省电力有限公司常州供电分公司 | Corona-resistant voltage device of high-voltage rectifying silicon stack |
-
2012
- 2012-12-13 CN CN 201220689663 patent/CN202949362U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103424583A (en) * | 2013-08-13 | 2013-12-04 | 中国电力科学研究院 | Automatic polarity-changing direct current boosting device |
| CN105811768A (en) * | 2016-03-10 | 2016-07-27 | 清华大学 | DC high-voltage polarity reversal device |
| CN105811768B (en) * | 2016-03-10 | 2018-08-03 | 清华大学 | A kind of DC high voltage polarity reversing device |
| CN106249078A (en) * | 2016-08-09 | 2016-12-21 | 苏州华电电气股份有限公司 | A kind of high tension generator silicon stack polar transfer test device |
| CN106357106A (en) * | 2016-09-18 | 2017-01-25 | 华中科技大学 | Direct-current high-voltage generator with quick polarity conversion function and method implemented by direct-current high-voltage generator |
| CN108435422A (en) * | 2018-03-23 | 2018-08-24 | 太以环境科技（北京）有限公司 | Atmospheric ionization mode selector |
| CN108435422B (en) * | 2018-03-23 | 2024-06-07 | 太以环境科技（北京）有限公司 | Atmospheric ionization mode selector |
| CN110441665A (en) * | 2019-09-06 | 2019-11-12 | 云南电网有限责任公司电力科学研究院 | In situ DC pressure resistance and local discharge test device for ± 500kV converter station |
| CN111627623A (en) * | 2020-05-28 | 2020-09-04 | 西安交通大学 | Grading ring assembly for closed impulse voltage generator |
| CN111627623B (en) * | 2020-05-28 | 2021-08-27 | 西安交通大学 | Grading ring assembly for closed impulse voltage generator |
| CN116699206A (en) * | 2023-07-28 | 2023-09-05 | 国网江苏省电力有限公司常州供电分公司 | Corona-resistant voltage device of high-voltage rectifying silicon stack |
| CN116699206B (en) * | 2023-07-28 | 2023-11-14 | 国网江苏省电力有限公司常州供电分公司 | Corona-resistant voltage device of high-voltage rectifying silicon stack |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130522 |
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| CX01 | Expiry of patent term |