CN103928910B - The protection system of extra-high-voltage direct-current power transmission converter - Google Patents
The protection system of extra-high-voltage direct-current power transmission converter Download PDFInfo
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- CN103928910B CN103928910B CN201410172083.2A CN201410172083A CN103928910B CN 103928910 B CN103928910 B CN 103928910B CN 201410172083 A CN201410172083 A CN 201410172083A CN 103928910 B CN103928910 B CN 103928910B
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Abstract
The present invention relates to the protection system of a kind of extra-high-voltage direct-current power transmission converter; protection zone is no longer carried out separate configurations protection; but some associated protection zones are configured a set of protection; as high-end converter unit protection district, high-end converter power transformer protection zone arrange a set of high-end valve unit protection system, low side converter unit protection district, low side converter power transformer protection zone arrange a set of low side valve unit protection system；Due to converter power transformer protection zone and converter unit protection district; any region fault all will cause this layer of valve group locking; so converter power transformer and converter unit protection district are fitted together; more meet running protection situation; and so make relaying configuration level become apparent from, simplify system configuration, decrease the line between screen; the reliability of raising system, reduces cost and current conversion station construction, the operating cost of protection system.
Description
Technical field
The present invention relates to joining of the protection system of a kind of extra-high-voltage direct-current power transmission converter, particularly its protection
Put.
Background technology
Extra-high-voltage direct-current power transmission converter protection system is the visual plant of current conversion station, it is achieved to whole current conversion station
The defencive function of interior various faults.
The relaying configuration method of extra-high-voltage direct-current power transmission converter typically uses subregion, layered configuration, rationally,
Succinct collocation method can improve the reliability of system, and reduces system cost.
Converter power transformer protection zone is used each subregion separate configurations by existing current conversion station relaying configuration method
Mode, cause protecting system complex, screen cabinet quantity is big, and wiring amount is big, complicated, and cost is high.
Specifically, extra-high-voltage direct-current power transmission converter protection system partitioning is as it is shown in figure 1, be divided into high-end
Converter unit protection district, high-end converter power transformer protection zone, low side converter unit protection district, low side converter power transformer
Protection zone, protection zone, pole and DC filter protection zone, bipolar protection zone, and AC filter protection district,
AC filter protection district particularly as follows: the first great Zu AC filter protection district, first great Zu Neige group hand over
Stream filter protection district, second largest group of AC filter protection district, second largest Zu Neige group alternating current filter
Protection zone, the third-largest group of AC filter protection district, AC filter protection district of the third-largest Zu Neige group,
The fourth-largest group of AC filter protection district, AC filter protection district of the fourth-largest Zu Neige group.
According to above subregion, the equal separate configurations of each subregion protects system accordingly.But in actual motion,
Such as converter power transformer protection zone and converter unit protection district, any region fault all will cause this layer of valve group locking,
So inverter and converter power transformer protection zone separate configurations can not be reflected actual motion protects situation, and
Also add complexity and the system cost of system.
Bipolar protection zone is used separate configurations, and after protection act, direct locking is bipolar, if it occur that malfunction,
By increasing the accident of system, there is great risk.
To AC filter protection district, existing relaying configuration scheme according to big group, group's wave filter independently joins
Putting, current conversion station typically configures four big group, and containing five groups in each big group, separate configurations method causes
Protection system is various, and structure is complicated, adds system cost, reduces the reliability of protection system.
Summary of the invention
It is an object of the invention to provide the protection system of a kind of extra-high-voltage direct-current power transmission converter, existing in order to solve
The relaying configuration of protected system is unsuitable for actual motion protection situation and the problem of complexity.
For achieving the above object, the solution of the present invention includes:
The protection system of extra-high-voltage direct-current power transmission converter, is divided into high-end converter unit protection district, the high-end change of current
Tranformer protection district, low side converter unit protection district, low side converter power transformer protection zone, protection zone, pole and direct current
Filter protection district, bipolar protection zone, the first great Zu AC filter protection district, the first great Zu Neige group
AC filter protection district, second largest group of AC filter protection district, second largest Zu Neige group ac filter
Device protection zone, the third-largest group of AC filter protection district, AC filter protection district of the third-largest Zu Neige group,
The fourth-largest group of AC filter protection district, AC filter protection district of the fourth-largest Zu Neige group, described high-end
Converter unit protection district, high-end converter power transformer protection zone arrange a set of high-end valve unit protection system, described low side
Converter unit protection district, low side converter power transformer protection zone arrange a set of low side valve unit protection system.
Protection zone, described pole and DC filter protection zone, bipolar protection zone arrange a set of pole protection system.
First great Zu AC filter protection district, the first AC filter protection district of great Zu Neige group configuration one
Protective system for alternating current filter organized greatly by set first；Second largest group of AC filter protection district, each in second largest group
AC filter protection district of group configures a set of second largest group of protective system for alternating current filter；The third-largest group of exchange
Filter protection district, a set of the third-largest group of exchange filter of AC filter protection district of the third-largest Zu Neige group configuration
Ripple device protection system；The fourth-largest group of AC filter protection district, the fourth-largest Zu Neige group alternating current filter are protected
Protect district and configure a set of the fourth-largest group of protective system for alternating current filter.
Described a set of high-end valve unit protection system is provided with three screens, and three screens are connected to control by two from three device
System processed.
Described a set of pole protection system is provided with three screens, and three screens are connected to control system by two from three device
System.
First organize greatly protective system for alternating current filter, second largest group of protective system for alternating current filter, the third-largest group
Protective system for alternating current filter, the fourth-largest group of protective system for alternating current filter, often set protection system is equipped with double
Heavily change the two sides screen of configuration.
The protection system of the present invention, no longer carries out separate configurations protection, but has connection by some protection zone
The protection zone of system configures a set of protection, as high-end converter unit protection district, high-end converter power transformer protection zone set
Putting a set of high-end valve unit protection system, low side converter unit protection district, low side converter power transformer protection zone arrange one
Set low side valve unit protection system；Due to converter power transformer protection zone and converter unit protection district, any region fault
All will cause this layer of valve group locking, so converter power transformer and converter unit protection district are fitted together, more accord with
Assembly system actual motion protection situation, and so make relaying configuration level become apparent from, the system of having simplified is joined
Put, decrease the line between screen, improve the reliability of system, reduce cost and the current conversion station of protection system
Construction, operating cost.
Accompanying drawing explanation
Fig. 1 is the protection subregion schematic diagram of extra-high voltage direct-current transmission inverter；
Fig. 2 is the high and low end valve unit protection of embodiment or the configuration of pole protection system and logic export schematic diagram；
Fig. 3 is configuration and the logic export schematic diagram (as a example by the first big group) of protective system for alternating current filter.
Detailed description of the invention
The present invention will be further described in detail below in conjunction with the accompanying drawings.
The basic scheme of the present invention is: the protection system of extra-high-voltage direct-current power transmission converter, is divided into high-end
Converter unit protection district, high-end converter power transformer protection zone, low side converter unit protection district, low side converter power transformer
Protection zone, protection zone, pole and DC filter protection zone, bipolar protection zone, the first group alternating current filter greatly is protected
Protect district, the first AC filter protection district of great Zu Neige group, second largest group of AC filter protection district,
Two AC filter protection districts of great Zu Neige group, the third-largest group of AC filter protection district, in the third-largest group
AC filter protection district of each group, the fourth-largest group of AC filter protection district, the fourth-largest Zu Neige group hand over
Stream filter protection district, high-end converter unit protection district, high-end converter power transformer protection zone arrange a set of high end valve
Group protection system, low side converter unit protection district, low side converter power transformer protection zone arrange a set of low end valve group and protect
Protecting system.
Concrete, the following table is protection subregion, the configuration of former protection system, embodiment the configuration of protection system right
According to table.
As can be seen from the above table, except converter power transformer and converter unit protection district；Protection zone, pole and DC filtering
Device protection zone, bipolar protection zone arrange a set of pole protection system.First great Zu AC filter protection district,
Protective system for alternating current filter is organized greatly in one AC filter protection district of great Zu Neige group configuration a set of first；The
Two great Zu AC filter protection districts, AC filter protection district of second largest Zu Neige group configuration a set of second
Organize greatly protective system for alternating current filter；The third-largest group of AC filter protection district, the third-largest Zu Neige group hand over
Stream filter protection district configures a set of the third-largest group of protective system for alternating current filter；The fourth-largest group of alternating current filter
Protection zone, a set of the fourth-largest group of alternating current filter of AC filter protection district of the fourth-largest Zu Neige group configuration are protected
Protecting system.
Protection system can control platform with built-in industrial or PC device realizes, and these two kinds of devices are special
The device that high-voltage dc transmission electrical domain is conventional.Configuration and the logic of system is protected in high and low end valve unit protection or pole
Outlet schematic diagram is as in figure 2 it is shown, i.e. use triple modular redundant configuration strategy, and the defencive function signal of protection system divides
Do not carry out final outlet after two from three logical judgment by independent two from three device.
The configuration of protective system for alternating current filter and logic export schematic diagram are as shown in Figure 3.Each big group of filtering
The configuration strategy of device configuration dual, often the outlet logic in set protection system uses and starts the plan adding action
Slightly, i.e. when certain startup logic protected and action logic action simultaneously, effective action letter will really be exported
Number, start identical with action logic, start the decision logic with action by independent hardware and survey thereof
Amount loop realizes, it is possible to be prevented effectively from malfunction during single set protection system generation single failure.
From upper table it can also be seen that the configuration mode of embodiment can simplify 49 set protection systems, simplify
Whole system structure, decreases wiring between substantial amounts of screen, saves the relevant cost of partial common CT, joint
About current conversion station controls protective chamber area occupied, significantly reduces the configuration of protection system and current conversion station construction
Cost, improve the reliability of protection system.
It is presented above specific embodiment, but the present invention is not limited to described embodiment.This
Bright basic ideas are above-mentioned basic scheme, for those of ordinary skill in the art, according to the present invention's
Teaching, designs the model of various deformation, formula, parameter are not required to spend creative work.Do not taking off
The change that in the case of the principle and spirit of the present invention, embodiment carried out, revise, replace and modification still
Fall within the scope of protection of the present invention.
Claims (6)
1. the protection system of extra-high-voltage direct-current power transmission converter, is divided into high-end converter unit protection district, high-end changes
Convertor transformer protection zone, low side converter unit protection district, low side converter power transformer protection zone, protection zone, pole is with straight
Stream filter protection district, bipolar protection zone, each little in the first great Zu AC filter protection district, the first big group
Group AC filter protection district, second largest group of AC filter protection district, the exchange filter of second largest Zu Neige group
Ripple device protection zone, the third-largest group of AC filter protection district, the third-largest Zu Neige group AC filter protection
District, the fourth-largest group of AC filter protection district, AC filter protection district of the fourth-largest Zu Neige group, it is special
Levying and be, described high-end converter unit protection district, high-end converter power transformer protection zone arrange a set of high end valve group and protect
Protecting system, described low side converter unit protection district, low side converter power transformer protection zone arrange a set of low end valve group and protect
Protecting system.
The protection system of extra-high-voltage direct-current power transmission converter the most according to claim 1, it is characterised in that
Protection zone, described pole and DC filter protection zone, bipolar protection zone arrange a set of pole protection system.
The protection system of extra-high-voltage direct-current power transmission converter the most according to claim 2, it is characterised in that
First great Zu AC filter protection district, the first AC filter protection district of great Zu Neige group configuration a set of the
One organizes greatly protective system for alternating current filter；Second largest group of AC filter protection district, second largest Zu Neige group
AC filter protection district configures a set of second largest group of protective system for alternating current filter；The third-largest group of ac filter
Device protection zone, AC filter protection district of the third-largest Zu Neige group configure a set of the third-largest group of alternating current filter
Protection system；The fourth-largest group of AC filter protection district, AC filter protection district of the fourth-largest Zu Neige group
Configure a set of the fourth-largest group of protective system for alternating current filter.
The protection system of extra-high-voltage direct-current power transmission converter the most according to claim 1, it is characterised in that
Described a set of high-end valve unit protection system is provided with three screens, and three screens are connected to control system by two from three device
System.
The protection system of extra-high-voltage direct-current power transmission converter the most according to claim 2, it is characterised in that
Described a set of pole protection system is provided with three screens, and three screens are connected to control system by two from three device.
The protection system of extra-high-voltage direct-current power transmission converter the most according to claim 3, it is characterised in that
First organizes greatly protective system for alternating current filter, second largest group of protective system for alternating current filter, the third-largest group of exchange
Filter protection system, the fourth-largest group of protective system for alternating current filter, often set protection system is equipped with dual
The two sides screen of configuration.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410172083.2A CN103928910B (en) | 2014-04-25 | 2014-04-25 | The protection system of extra-high-voltage direct-current power transmission converter |
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| CN201410172083.2A CN103928910B (en) | 2014-04-25 | 2014-04-25 | The protection system of extra-high-voltage direct-current power transmission converter |
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| CN103928910A CN103928910A (en) | 2014-07-16 |
| CN103928910B true CN103928910B (en) | 2016-11-16 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104794844B (en) * | 2015-04-23 | 2017-09-12 | 许继集团有限公司 | A kind of converter station valve hall fire signal expanding unit |
| CN104849534B (en) * | 2015-05-14 | 2018-02-23 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | A kind of method for realizing voltage measurement abnormality detection in direct current station control system |
| CN104849541B (en) * | 2015-05-14 | 2018-02-23 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | A kind of method for realizing voltage measurement abnormality detection in DC protection system |
| CN105322536B (en) * | 2015-10-23 | 2018-06-26 | 深圳供电局有限公司 | Protection configuration method of typical multi-terminal flexible direct current power distribution system |
| CN106207993A (en) * | 2016-08-02 | 2016-12-07 | 南京南瑞继保电气有限公司 | A kind of rapid protection system |
| CN108879625B (en) * | 2018-07-19 | 2019-09-27 | 南京南瑞继保电气有限公司 | A kind of parallel connection multiterminal extra-high voltage direct-current transmission valve unit protection action processing method |
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| CN101383506A (en) * | 2008-10-17 | 2009-03-11 | 南方电网技术研究中心 | Method for configuration protection of extra-high voltage DC power transmission system |
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2014
- 2014-04-25 CN CN201410172083.2A patent/CN103928910B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101383506A (en) * | 2008-10-17 | 2009-03-11 | 南方电网技术研究中心 | Method for configuration protection of extra-high voltage DC power transmission system |
Non-Patent Citations (3)
| Title |
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| ±800kV特高压直流系统保护配置;李辉等;《湖南电力》;20120831;第32卷(第4期);24-28 * |
| 特高压直流保护专有功能概述;严兵等;《电力系统保护与控制》;20090616;第37卷(第12期);73-75,85 * |
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