CL2022001413A1 - Method and device for controlling ground faults on the DC side of a - Google Patents
Method and device for controlling ground faults on the DC side of aInfo
- Publication number
- CL2022001413A1 CL2022001413A1 CL2022001413A CL2022001413A CL2022001413A1 CL 2022001413 A1 CL2022001413 A1 CL 2022001413A1 CL 2022001413 A CL2022001413 A CL 2022001413A CL 2022001413 A CL2022001413 A CL 2022001413A CL 2022001413 A1 CL2022001413 A1 CL 2022001413A1
- Authority
- CL
- Chile
- Prior art keywords
- converters
- control
- ground fault
- transmission system
- ground
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 3
- 230000005540 biological transmission Effects 0.000 abstract 4
- 238000002242 deionisation method Methods 0.000 abstract 1
- 238000001514 detection method Methods 0.000 abstract 1
- 230000008034 disappearance Effects 0.000 abstract 1
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
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
-
- 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
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/265—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured making use of travelling wave theory
-
- 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
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/268—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured for DC systems
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for AC mains or AC distribution networks
- H02J3/36—Arrangements for transfer of electric power between AC networks via a high-tension DC link
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Theoretical Computer Science (AREA)
- Direct Current Feeding And Distribution (AREA)
- Rectifiers (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Inverter Devices (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
La solicitud proporciona un método y un dispositivo para controlar una falla a tierra en el lado de CC de un sistema de transmisión HVDC. El método de control comprende: controlar al menos un convertidor de cada uno de los dos lados de la falla a tierra para permitir que el funcionamiento continúe; determinar valores de referencia de corriente de CC de los dos convertidores a los dos lados de una falla a tierra en función de los requisitos del sistema de transmisión HVDC, siendo los dos convertidores, respectivamente, un convertidor a cada uno de los lados de la falla a tierra que sigue funcionando; controlar que las corrientes de CC de los dos convertidores sean iguales entre sí en función de los valores de referencia de corriente de CC; y cuando la falla a tierra ocurre en una estación rectificadora o una estación inversora, controlar el sistema de transmisión HVDC para aislar la falla a tierra y, a continuación, controlar los dos convertidores para que funcionen con normalidad, o controlar los dos convertidores o polos de CC donde están ubicados los dos convertidores a bloquear y, a continuación, controlar el sistema de transmisión HVDC para aislar la falla a tierra; o, cuando la falla a tierra ocurre en una línea de CC o en una línea de electrodos de conexión a tierra, controlar los dos convertidores para que funcionen con normalidad después de un tiempo de desionización o tras la detección de la desaparición de la falla a tierra.The application provides a method and device for controlling a ground fault on the DC side of an HVDC transmission system. The control method includes: control at least one converter from each of the two sides of the ground fault to allow the operation to continue; determine DC current reference values of the two converters on both sides of a ground fault based on the requirements of the HVDC transmission system, the two converters being, respectively, one converter on each side of the fault to ground that keeps working; check that the DC currents of the two converters are equal to each other based on the DC current reference values; and when the ground fault occurs in a rectifier station or an inverter station, control the HVDC transmission system to isolate the ground fault, and then control the two converters to work normally, or control the two converters or poles where the two converters to be blocked are located, and then control the HVDC transmission system to isolate the ground fault; or, when the ground fault occurs in a DC line or in a ground electrode line, control the two converters to work normally after a deionization time or after the detection of the disappearance of the fault to land.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911368616.3A CN113054679B (en) | 2019-12-26 | 2019-12-26 | Direct-current side earth fault control method and control device for high-voltage direct-current transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CL2022001413A1 true CL2022001413A1 (en) | 2023-01-27 |
Family
ID=76505469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CL2022001413A CL2022001413A1 (en) | 2019-12-26 | 2022-05-27 | Method and device for controlling ground faults on the DC side of a |
Country Status (5)
| Country | Link |
|---|---|
| CN (1) | CN113054679B (en) |
| BR (1) | BR112022010444B1 (en) |
| CL (1) | CL2022001413A1 (en) |
| PH (1) | PH12022551316A1 (en) |
| WO (1) | WO2021129822A1 (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113629703B (en) * | 2021-07-28 | 2024-05-07 | 南方电网科学研究院有限责任公司 | An Optimization Method for Fault Recovery Control of Conventional DC System |
| CN113777459B (en) * | 2021-08-12 | 2024-05-28 | 中国南方电网有限责任公司超高压输电公司昆明局 | Method and device for locating pulse loss fault of converter |
| CN114204683B (en) * | 2021-12-13 | 2023-11-28 | 南方电网科学研究院有限责任公司 | Extra-high voltage flexible direct current transmission system direct current voltage measurement abnormality detection method |
| CN114417241B (en) * | 2021-12-15 | 2024-05-10 | 北京四方继保工程技术有限公司 | Monopole grounding short circuit calculation method and system of offshore wind power flexible-direct system |
| CN114389234B (en) * | 2021-12-31 | 2024-10-22 | 国网冀北电力有限公司北京超高压公司 | Ground fault protection system and protection control method of flexible DC power grid |
| CN114362572B (en) * | 2022-01-13 | 2024-02-09 | 国网江苏省电力有限公司 | Calculation method for maximum temporary overvoltage of parallel MMC under alternating current short circuit fault |
| CN114465211B (en) * | 2022-02-17 | 2022-11-18 | 山东大学 | Flexible line circuit protection method and system based on flat wave inductance voltage head wave time |
| CN114696353A (en) * | 2022-03-02 | 2022-07-01 | 国网安徽省电力有限公司 | Direct-current power transmission system equivalence method considering commutation failure process and controller action |
| CN114636897B (en) * | 2022-03-16 | 2024-12-31 | 国网江西省电力有限公司电力科学研究院 | Method and device for locating valve short-circuit fault in HVDC rectifier station based on actual control and protection recording wave |
| CN115102215B (en) * | 2022-07-20 | 2024-07-02 | 东南大学 | Control method and device of HVDC system, storage medium and electronic equipment |
| CN115575769B (en) * | 2022-11-10 | 2025-03-04 | 国网四川省电力公司电力科学研究院 | A method and system for detecting power grid faults based on current distribution characteristics in the module domain |
| CN115632385B (en) * | 2022-11-15 | 2025-05-13 | 南方电网科学研究院有限责任公司 | Optimization method, control method and device for flexible DC short-delay differential protection |
| CN116937654B (en) * | 2023-09-14 | 2023-11-28 | 四川大学 | Feedback power coordination control method for hybrid multi-feed direct current transmission system |
| WO2025108249A1 (en) * | 2023-11-20 | 2025-05-30 | 南京南瑞继保电气有限公司 | Restart method and control device for direct-current line fault of high-voltage direct-current power transmission system |
| CN118316098B (en) * | 2024-04-28 | 2025-03-11 | 国网江苏省电力有限公司电力科学研究院 | A DC fault transient control method for symmetrical single-pole LCC-HVDC system |
| CN119051067A (en) * | 2024-11-04 | 2024-11-29 | 国网智能电网研究院有限公司 | Reactive power control method and device for converter station |
| CN119627811A (en) * | 2024-12-18 | 2025-03-14 | 昆明理工大学 | A differential protection method for LCC-HVDC transmission lines based on fault direction identification with ratio braking in double-terminal stations |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611096A (en) * | 2012-03-13 | 2012-07-25 | 浙江大学 | Bipolar direct current power transmission system with direct current failure self-elimination capacity |
| US9178349B2 (en) * | 2013-09-11 | 2015-11-03 | General Electric Company | Method and system for architecture, control, and protection systems of modular stacked direct current subsea power system |
| CN104269840B (en) * | 2014-10-20 | 2016-03-23 | 国家电网公司 | A kind of direct current transmission line of extra-high-voltage direct current project fault rebooting method |
| CN105162155B (en) * | 2015-08-26 | 2017-10-27 | 浙江大学 | A kind of series hybrid bipolar direct current transmission system with DC Line Fault ride-through capability |
| CN106229951B (en) * | 2016-07-27 | 2018-06-19 | 华中科技大学 | A kind of DC/DC auto-transformers are to the fault ride-through method of external DC line commutation apparatus short trouble |
| CN110233472B (en) * | 2018-03-05 | 2022-02-18 | 南京南瑞继保电气有限公司 | Fault protection method and protection device for voltage source converter |
| CN108683207B (en) * | 2018-05-28 | 2021-10-01 | 南京南瑞继保电气有限公司 | Online switching circuit, switching method and device for hybrid direct current converter valve bank |
| CN110970879B (en) * | 2019-12-26 | 2021-10-01 | 南京南瑞继保电气有限公司 | Method and device for controlling valve area ground fault of extra-high voltage direct current low-side converter |
-
2019
- 2019-12-26 CN CN201911368616.3A patent/CN113054679B/en active Active
-
2020
- 2020-12-25 WO PCT/CN2020/139539 patent/WO2021129822A1/en not_active Ceased
- 2020-12-25 BR BR112022010444-8A patent/BR112022010444B1/en active IP Right Grant
- 2020-12-25 PH PH1/2022/551316A patent/PH12022551316A1/en unknown
-
2022
- 2022-05-27 CL CL2022001413A patent/CL2022001413A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CN113054679A (en) | 2021-06-29 |
| BR112022010444B1 (en) | 2023-10-31 |
| PH12022551316A1 (en) | 2023-11-20 |
| CN113054679B (en) | 2022-07-22 |
| BR112022010444A2 (en) | 2022-09-06 |
| WO2021129822A1 (en) | 2021-07-01 |
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