WO2008037774A1 - Thyristorventil einer hgü-anlage - Google Patents
Thyristorventil einer hgü-anlage Download PDFInfo
- Publication number
- WO2008037774A1 WO2008037774A1 PCT/EP2007/060276 EP2007060276W WO2008037774A1 WO 2008037774 A1 WO2008037774 A1 WO 2008037774A1 EP 2007060276 W EP2007060276 W EP 2007060276W WO 2008037774 A1 WO2008037774 A1 WO 2008037774A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- valve
- thyristor
- sections
- transmission system
- power converter
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
- H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
- H02H7/1203—Circuits independent of the type of conversion
- H02H7/1206—Circuits independent of the type of conversion specially adapted to conversion cells composed of a plurality of parallel or serial connected elements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/041—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using a short-circuiting device
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1422—Printed circuit boards receptacles, e.g. stacked structures, electronic circuit modules or box like frames
- H05K7/1427—Housings
- H05K7/1432—Housings specially adapted for power drive units or power converters
- H05K7/14339—Housings specially adapted for power drive units or power converters specially adapted for high voltage operation
Definitions
- the invention relates to a valve of a power converter of a high-voltage DC transmission system with a plurality of valve sections, each having a plurality of thyristors electrically connected in series, and with an overvoltage arrester, which is electrically connected in parallel to the valve.
- Such a thyristor valve of a high voltage DC transmission system also referred to as an HVDC system
- HVDC system is known from the publication entitled "Modern HVDC Thyristor Valves for China's Electric Power System", reprinted in ....
- a valve of a power converter of a HVDC system has a plurality of thyristors. These plurality of thyristors of a thyristor valve are divided into a plurality of valve sections. Two valve sections of a thyristor valve each form a Thyristorbaustein.
- one phase of a HVDC plant has four thyristor valves and each thyristor valve is made up of three thyristor modules, this phase has twelve such thyristor modules, which are divided into two spatially parallel valve towers. Each Thyristorbaustein forms a floor of such a valve tower.
- Each thyristor valve has an overvoltage arrester electrically connected in parallel.
- the valves are each protected against overvoltages, provided that an overvoltage evenly distributed to all units within a valve. If overvoltages with high voltage gradients occur, caused by existing and depending on the valve section considered, Different stray capacitances, to an asymmetrical voltage distribution within a thyristor, so thyristors can be charged in a valve section with the proportionately highest overvoltage on their reverse blocking capability and thereby destroyed.
- control capacitors for voltage balancing are used in each valve section of a valve according to the publication mentioned above. These control capacitors are electrically connected in parallel to a respective valve section.
- each Thyristorbaustein having two valve sections, two control capacitors.
- the value of each control capacitor must be chosen so large that this and not an existing stray capacitance determines the voltage distribution.
- a typical value for a control capacitor in a 500kV HVDC valve is 6nF per valve section.
- Such a control capacitor claimed in a Thyristorbaustein no insignificant place.
- these control capacitors increase the weight of the Thyristorbausteins.
- the invention is based on the object, a generic valve in such a way that no control capacitors are required more.
- valve outlet which is present in any case, is distributed predominantly over the valve sections
- no control condensers per valve section are required any more.
- the value of the turn-on capacity of a valve is significantly reduced, so that in addition the available per valve section saturable reactors can be made smaller. Due to the partial integration of a valve in its valve sections, the valve is selectively against overvoltages caused by stray capacitance limited, without first symmetrizing this occurring overvoltage.
- the existing valve arrester is completely integrated in the valve. That is, the valve is divided into its valve sections. This additionally ensures that the space required by a valve tower is reduced.
- the overvoltage arresters integrated in the valve sections of this valve are liquid-cooled. As a result, they can be connected to the existing cooling system of the valve, which eliminates the need for a separate Ableiterkühlung.
- FIG. 1 shows an equivalent circuit diagram of a power converter of an HVDC system according to the prior art, in which
- Fig. 2 is an equivalent circuit diagram of a valve of the power converter illustrated in FIG.
- Fig. 3 shows a circuit diagram of a valve of the power converter according to Fig. 1, wherein in FIG. 4, a Thyristorbaustein of the power converter of FIG. 1 is shown in the
- Fig. 5 is a structure of the power converter shown in FIG. 1, and the
- FIG. 6 shows an equivalent circuit diagram of a first embodiment of a valve according to the invention
- Fig. 7 shows a second embodiment of a valve according to the invention is shown.
- a power converter 2 of a high-voltage DC transmission system HVDC system
- each phase of this power converter 2 four valves 4, which are electrically connected in series.
- Such a phase valve 6 is referred to as a quadruple valve.
- this power converter 2 is connected by means of a transformer 8 to a network.
- This transformer 8 has a primary winding 10 and two secondary windings 12 and 14.
- the primary winding 10 and the secondary winding 12 are each connected in star, whereas the secondary winding 14 is connected in delta.
- Each output of a phase of a secondary winding 12 or 14 is connected to an AC-side input 16, 18, 20 and 22, 24, 26 of a partial phase valve 28 and 30, consisting of two electrically connected in series valves 4, electrically conductively connected.
- each valve 4 has a valve 32, a Optimizindukt Chemistry 34 and a replacement thyristor 36.
- this replacement thyristor 36 has six valve sections 38, which are each represented by a thyristor circuit diagram.
- Each valve section 38, a control capacitor 40 is electrically connected in parallel.
- the value of each control capacitor 40 must be chosen so large that this and not the available stray capacitances determines the voltage distribution. For example, a typical value for a control capacitor is 6nF per valve section 38 for a 50OkV HGU valve 4, that is, for six valve sections 38, the value of each control capacitor 40 is InF per valve 4.
- FIG. 3 shows a circuit diagram of a valve 4 of a power converter 2 of an HVDC system.
- this valve 4 six valve sections 38, of which half of the clarity, only three valve sections 38 are shown.
- Each valve section 38 has, in addition to the control capacitor 40, a plurality of thyristor stations 42 and a plurality of saturable Dros 44. Of these, only one per valve section 38 are shown in each case.
- Each thyristor slot 42 has a thyristor 46, to each of which a snubber network 48 is connected in parallel.
- a valve 4 of a 500 kV power converter 2 consists of six valve sections 38, which each have thirteen thyristor stations 42. Thus, this valve 4 has seventy-eight thyristors 46.
- thyristors 46 of each valve section 38 are electrically connected in series and arranged with their cooling components together in a clamping band 50.
- the wiring networks 48 and on the other hand the thyristor drives are arranged.
- a thyristor module 52 is home to further components of two valve sections 38. These components include the saturable restrictors 44, four per valve section 38, and the control capacitors 40, one for each valve section 38.
- a valve 4 that is in six
- Valve sections 38 is divided, realized by means of three Thyristorbausteinen 52. This means that a quadruple valve 6 of the power converter 2 according to FIG. 1 has twelve such thyristor modules 52.
- Fig. 5 the structure of such a quadruple valve 6 is shown in more detail. Its twelve thyristor modules 52 are distributed on two valve towers 54 and 56. These thyristor modules 52 in each case form one floor of a valve tower 54 or 56. Spatially adjacent to these two valve towers 54 and 56, the associated valve dischargers 32 are arranged by means of a mounting structure. This illustration is too to find out how the spatial extent of such a valve diverter 32 is.
- FIG. 6 shows in more detail an equivalent circuit diagram of a first embodiment of a valve 4 according to the invention.
- the valve 4 according to the invention has no control capacitors 40 more.
- the function of the voltage limiting of these control capacitors 40 is now taken over by valve section arresters 58.
- These valve section arresters 58 are dimensioned such that part of the previous valve arrester 32 is now realized by them. As a result, an arrester with a lower power is required as the valve conductor 32.
- By eliminating the control capacitors 40 of a valve 4 again determine the existing stray capacitances, which are different depending on the considered valve section, the voltage distribution along the valve 4.
- valve diverter 32 By partially integrating the valve diverter 32 into its individual valve sections 38, control capacitors 40 are no longer needed, thereby reducing the value of the turn-on capacity of each valve section 38. This also reduces the value of the inductance of each saturable reactor 44 of a valve section 38.
- valve 32 is fully integrated into its valve sections 38.
- each valve section 38 has a valve section arrester 60.
- These valve section arresters 60 each have a higher performance compared to the valve section arresters 58 of the embodiment according to FIG. 6, since the capacity of the valve arrester 32 is now completely applied by these valve section arresters 60. Since in this case 4 valve holder 32 is no longer required, no mounting frame for the valve 32 is more required, whereby the spatial dimensions of the two valve towers 54 and 56 of the construction of the quadruple valve 6 of FIG. 5 decrease.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Rectifiers (AREA)
- Inverter Devices (AREA)
- Power Conversion In General (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07820664A EP2067226A1 (de) | 2006-09-28 | 2007-09-27 | Thyristorventil einer hgü-anlage |
JP2009529706A JP2010505378A (ja) | 2006-09-28 | 2007-09-27 | 直流送電設備のサイリスタバルブ |
US12/443,495 US20100027177A1 (en) | 2006-09-28 | 2007-09-27 | Thyristor Valve of an HVDC Transmission System |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006046040A DE102006046040A1 (de) | 2006-09-28 | 2006-09-28 | Thyristorventil einer HGÜ-Anlage |
DE102006046040.5 | 2006-09-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008037774A1 true WO2008037774A1 (de) | 2008-04-03 |
Family
ID=38763458
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2007/060276 WO2008037774A1 (de) | 2006-09-28 | 2007-09-27 | Thyristorventil einer hgü-anlage |
Country Status (6)
Country | Link |
---|---|
US (1) | US20100027177A1 (de) |
EP (1) | EP2067226A1 (de) |
JP (1) | JP2010505378A (de) |
CN (1) | CN101523682A (de) |
DE (1) | DE102006046040A1 (de) |
WO (1) | WO2008037774A1 (de) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8422254B2 (en) | 2008-05-07 | 2013-04-16 | Abb Technology Ag | Voltage source converter |
WO2010145870A1 (de) * | 2009-06-16 | 2010-12-23 | Abb Schweiz Ag | Leistungselektronische einheit und system mit solchen leistungselektronischen einheiten |
CN101719719B (zh) * | 2009-12-14 | 2013-02-06 | 中国电力科学研究院 | 一种晶闸管换流阀阀模块 |
CN101893670B (zh) * | 2010-06-25 | 2013-12-18 | 中国电力科学研究院 | 一种用于高压直流输电换流阀的光电测量*** |
KR101295070B1 (ko) * | 2012-04-13 | 2013-08-08 | 엘에스산전 주식회사 | 초고압 직류송전시스템의 밸브모듈 적층구조 및 방법 |
CN103580017B (zh) * | 2013-11-05 | 2016-08-17 | 国家电网公司 | 一种换流阀阀避雷器配置方法 |
CN104009651B (zh) * | 2014-05-30 | 2016-06-22 | 许继电气股份有限公司 | 换流阀阀塔及使用该换流阀阀塔的阀厅 |
WO2016008518A1 (en) * | 2014-07-16 | 2016-01-21 | Abb Technology Ltd | Valve unit for hvdc power converter insulated by solid material and gas |
CN104237754B (zh) * | 2014-09-26 | 2017-03-15 | 国家电网公司 | 一种换流阀中桥臂形成等电位体的方法及装置 |
CN108476597B (zh) * | 2015-12-28 | 2020-12-18 | Abb电网瑞士股份公司 | 用于hvdc功率变流器的阀组件 |
DE102017203053A1 (de) * | 2017-02-24 | 2018-08-30 | Siemens Aktiengesellschaft | Vorrichtung zur Spannungsbegrenzung für ein Gleichspannungsnetz |
CN107039955B (zh) * | 2017-05-19 | 2019-02-22 | 南京南瑞继保电气有限公司 | 一种方形布置的混合型直流断路器阀结构 |
CN110492439B (zh) * | 2019-07-08 | 2021-04-13 | 中车永济电机有限公司 | 适用于大功率SiCMOSFET的保护电路 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3943427A (en) * | 1974-07-02 | 1976-03-09 | Jury Georgievich Tolstov | Apparatus for protecting the thyristors of a high-voltage controlled converter from overvoltage |
US3947726A (en) * | 1974-12-18 | 1976-03-30 | General Electric Co. | Reverse voltage surge protection for high-voltage thyristors |
GB2090482A (en) * | 1980-12-26 | 1982-07-07 | V Elektrotech I V I | Method for limiting voltage across series-connected thyristors of high-voltage rectifier |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE441047B (sv) * | 1983-10-06 | 1985-09-02 | Asea Ab | Halvledarventil for hogspenning med spenningsdelarsektioner innefattande motstand |
US4679113A (en) * | 1985-11-18 | 1987-07-07 | Westinghouse Electric Corp. | Electrical distribution apparatus having draw-out surge arrester |
IN169518B (de) * | 1987-07-13 | 1991-11-02 | Siemens Ag | |
EP0321801B1 (de) * | 1987-12-23 | 1992-04-01 | BBC Brown Boveri AG | Abschaltbarer Thyristor mit Überspannungsschutz |
JPH05102571A (ja) * | 1991-10-03 | 1993-04-23 | Toshiba Corp | 高電圧パルス発生装置 |
DE4441279C1 (de) * | 1994-11-19 | 1995-09-21 | Abb Management Ag | Vorrichtung zur Strombegrenzung |
US5933310A (en) * | 1998-05-07 | 1999-08-03 | Alan Scientific Corporation | Circuit breaker with wide operational current range |
-
2006
- 2006-09-28 DE DE102006046040A patent/DE102006046040A1/de not_active Withdrawn
-
2007
- 2007-09-27 JP JP2009529706A patent/JP2010505378A/ja not_active Abandoned
- 2007-09-27 EP EP07820664A patent/EP2067226A1/de not_active Withdrawn
- 2007-09-27 WO PCT/EP2007/060276 patent/WO2008037774A1/de active Application Filing
- 2007-09-27 CN CNA2007800364222A patent/CN101523682A/zh active Pending
- 2007-09-27 US US12/443,495 patent/US20100027177A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3943427A (en) * | 1974-07-02 | 1976-03-09 | Jury Georgievich Tolstov | Apparatus for protecting the thyristors of a high-voltage controlled converter from overvoltage |
US3947726A (en) * | 1974-12-18 | 1976-03-30 | General Electric Co. | Reverse voltage surge protection for high-voltage thyristors |
GB2090482A (en) * | 1980-12-26 | 1982-07-07 | V Elektrotech I V I | Method for limiting voltage across series-connected thyristors of high-voltage rectifier |
Also Published As
Publication number | Publication date |
---|---|
US20100027177A1 (en) | 2010-02-04 |
JP2010505378A (ja) | 2010-02-18 |
CN101523682A (zh) | 2009-09-02 |
EP2067226A1 (de) | 2009-06-10 |
DE102006046040A1 (de) | 2008-04-03 |
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