CN201813210U - Protective system for alternating current filter for DC converter station - Google Patents
Protective system for alternating current filter for DC converter station Download PDFInfo
- Publication number
- CN201813210U CN201813210U CN 201020278085 CN201020278085U CN201813210U CN 201813210 U CN201813210 U CN 201813210U CN 201020278085 CN201020278085 CN 201020278085 CN 201020278085 U CN201020278085 U CN 201020278085U CN 201813210 U CN201813210 U CN 201813210U
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- Prior art keywords
- protection
- protective
- cover
- sets
- converter station
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- Expired - Fee Related
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- 230000001681 protective effect Effects 0.000 title abstract description 11
- 230000005284 excitation Effects 0.000 claims description 5
- 238000004891 communication Methods 0.000 abstract description 6
- 230000002159 abnormal effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 238000005070 sampling Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Y02E60/725—
Abstract
The utility model discloses a protective system for an alternating current filter for a DC converter station. The protective system comprises two sets of fully redundant industrial computer type protective systems; each set of the industrial computer type protective system comprises a sampling circuit, a signal input circuit, a protective host machine and a signal output circuit; both the two sets of the signal output circuits are connected with primary equipment; and the two sets of the protective host machines are in communication connection with each other. The phenomenon that the protected equipment runs without protection due to the incorrect operation or the abnormal software logic during the running process of the single set of the protective systems can be effectively avoided by increasing the communication and monitoring logics between the two sets of the protective systems; the phenomenon that the equipment runs without protection due to the sudden hardware failure is completely avoided by increasing the reserved tripping function; therefore, the reliability and the stability of the protective system are enhanced.
Description
Technical field
The utility model relates to the electric equipment protection technical field, is specifically related to DC converter station AC filter protection system.
Background technology
The AC filter protection system of DC converter station alternating current filter field configuration is very important protection equipment, is responsible for protection alternating current filter primary equipment timely correct excision fault point when fault takes place, and the equipment of keeping is normally transported dress.To make primary equipment be in the unprotect running status when withdrawing from normal operating condition (Active state), greatly influence the operational reliability of current conversion station if the AC filter protection main frame takes place unusual.
Along with development of technology, it is carrier that electric power system has been widely applied with the industrial control host, carries out the novel protected system of fault judgement by software logic, has replaced the conventional relay system and the protective device of SCM type.Because the protection logic determines is to be realized by protection software, therefore can realize than protected more defencive function and more complicated logical process ability in the past.
As shown in Figure 1; the DC converter station AC filter protection adopts the industrial computer formula protection system of two cover fully redundances mostly; from sample circuit, signal input circuit, protection main frame, the equal fully redundance of signal output apparatus and independence, arbitrary protection outlet will be sent to the I/O integrated circuit board and carry out trip command.
Interfering with each other between protection system effectively avoided in such configuration, but because two cover systems do not have communication mutually, this operational system makes protected primary equipment lose the possibility of protection operation because of abnormal failure withdraws from the Active state when having the operation of list cover protection system.Among Fig. 1 the protection host A with protect between the host B programmed logic identical; but owing to there is not communication mutually; therefore when a cover protection system operation; when another set of protection system is overhauled; any fault is (as measuring fault; I/O integrated circuit board fault etc.) or misoperation (as withdraw from unique one the cover operating protection main frame) all will cause the protection system of unique operation out of service; do not communicate by letter owing to have mutually between protection main frame and the main control system; therefore main control system can not protected main frame tripping equipment all out of service because of all; cause protected equipment to be in the unprotect running status, bring hidden danger to safe operation.
Summary of the invention
The purpose of this utility model is to overcome existing deficiency, and a kind of DC converter station AC filter protection system is provided, and this system makes the protection main frame be in the unprotect running status taking place protected equipment not to take place when unusual.
The purpose of this utility model is achieved in that a kind of DC converter station AC filter protection system; it comprises the industrial computer formula protection system of two cover fully redundances; every cover industrial computer formula protection system all comprises sample circuit, signal input circuit, protection main frame, signal output apparatus; two cover signal output apparatus all connect primary equipment, it is characterized in that: communicate connection between the two cover protection main frames.
The utility model further comprises reserve trip avoidance function circuit, and this circuit is to deliver to relay after the operate as normal Active signal of two cover protection main frames is coupled to make the normal excitation of relay.After two cover protection main frame operate as normal Active signals all disappeared, relay was loss of excitation, made controlledly often to open the node closure, thereby sent trip signal.
The utility model is compared its advantage and is with prior art: by increasing communication and the monitoring logics of two covers between protection systems, and the generation of the protected equipment unprotect operation that causes unusually because of misoperation or software logic in the time of can effectively avoiding single cover system operation.By increasing the reserve trip avoidance function, the generation that the equipment unprotect of having avoided sudden hardware fault to cause is fully moved.Thereby system reliability and stability have been increased.
Description of drawings
Fig. 1 is a prior art DC converter station AC filter protection system schematic;
Fig. 2 is the utility model DC converter station AC filter protection system schematic;
Fig. 3 is the utility model reserve trip avoidance function circuit diagram.
Embodiment
As shown in Figure 2, a kind of DC converter station AC filter protection system, it comprises the industrial computer formula protection system of two cover fully redundances, and the first cover industrial computer formula protection system comprises the sample circuit, the signal input circuit A that are connected with current transformer or voltage transformer CT, PTA winding, protects host A, signal output apparatus A; The second cover industrial computer formula protection system comprises the sample circuit, the signal input circuit B that are connected with current transformer or voltage transformer CT, PTB winding, protects host B, signal output apparatus B; Two cover signal output apparatus all connect primary equipment, communicate connection between the two cover protection main frames.
As shown in Figure 3; the utility model has also increased reserve trip avoidance function circuit; by with two cover protection main frame operate as normal Active signals with after deliver to relay and make the normal excitation of relay; after two cover protection main frame operate as normal Active signals all disappear; relay is with loss of excitation; make and controlledly often open the node closure, thereby send trip signal.
The utility model is by increasing the communication port between protection host A and the protection host B, and host A ctive signal is passed to the other side separately.Simultaneously at the inner software logic that increases of main frame; when this cover protection main frame receive cover protection host A ctive signal is 0 the time; forbid that this cover protection main frame withdraws from the Active state because of catastrophe failure; this cover protection main frame will maintain the Active state of tape jam signal, and that forbids simultaneously that the backstage assigns manually cuts to the command execution of test state.Make single cover protection main frame can not lose protection when moving because of software logic makes protected equipment.Simultaneously when preventing single cover protection system operation, protection main frame in service is directly out of service to cause protected equipment to lose protection because of power down or other hardware faults cause.
Claims (2)
1. DC converter station AC filter protection system; it comprises the industrial computer formula protection system of two cover fully redundances; every cover industrial computer formula protection system all comprises sample circuit, signal input circuit, protection main frame, signal output apparatus; two cover signal output apparatus all connect primary equipment, it is characterized in that: communicate connection between the two cover protection main frames.
2. according to the described DC converter station AC filter protection of claim 1 system, it is characterized in that: it also comprises reserve trip avoidance function circuit, and this circuit is to deliver to relay after the operate as normal Active signal of two cover protection main frames is coupled to make the normal excitation of relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020278085 CN201813210U (en) | 2010-07-30 | 2010-07-30 | Protective system for alternating current filter for DC converter station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020278085 CN201813210U (en) | 2010-07-30 | 2010-07-30 | Protective system for alternating current filter for DC converter station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201813210U true CN201813210U (en) | 2011-04-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020278085 Expired - Fee Related CN201813210U (en) | 2010-07-30 | 2010-07-30 | Protective system for alternating current filter for DC converter station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201813210U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102185278A (en) * | 2011-05-03 | 2011-09-14 | 中国电力工程顾问集团中南电力设计院 | Extra-high-voltage direct-current power transmission converter station protecting method |
| CN104779626A (en) * | 2015-03-26 | 2015-07-15 | 中国南方电网有限责任公司超高压输电公司广州局 | Monitoring method for reactive power control of extra-high/ultrahigh-voltage direct-current convertor station |
-
2010
- 2010-07-30 CN CN 201020278085 patent/CN201813210U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102185278A (en) * | 2011-05-03 | 2011-09-14 | 中国电力工程顾问集团中南电力设计院 | Extra-high-voltage direct-current power transmission converter station protecting method |
| CN104779626A (en) * | 2015-03-26 | 2015-07-15 | 中国南方电网有限责任公司超高压输电公司广州局 | Monitoring method for reactive power control of extra-high/ultrahigh-voltage direct-current convertor station |
| CN104779626B (en) * | 2015-03-26 | 2017-07-11 | 中国南方电网有限责任公司超高压输电公司广州局 | A kind of monitoring method of spy/superhigh voltage DC current conversion station is idle control |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Free format text: FORMER OWNER: STATE GRID OPERATION CO., LTD. SHANGHAI SUPERHIGH-VOLTAGE MANAGEMENT OFFICE Effective date: 20130729 Owner name: STATE GRID OPERATION CO., LTD. SHANGHAI SUPERHIGH- Effective date: 20130729 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 201615 SONGJIANG, SHANGHAI TO: 100033 XICHENG, BEIJING |
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| TR01 | Transfer of patent right |
Effective date of registration: 20130729 Address after: 100033 No. 86, Xicheng District, Beijing, Chang'an Avenue Patentee after: State Grid Corporation of China Patentee after: State Grid Operation Co., Ltd. Shanghai Superhigh-Voltage Management Office Address before: 201615, room 339, 1101 Ledu Road, Shanghai, Songjiang District Patentee before: State Grid Operation Co., Ltd. Shanghai Superhigh-Voltage Management Office |
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| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI MANAGEMENT OFFICE OF GRID OPERATION BRANC Free format text: FORMER OWNER: STATE GRID OPERATION CO., LTD. SHANGHAI SUPERHIGH-VOLTAGE MANAGEMENT OFFICE Effective date: 20150820 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150820 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: Shanghai branch of China National Power Grid Corp operation branch Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee before: State Grid Corporation of China Patentee before: State Grid Operation Co., Ltd. Shanghai Superhigh-Voltage Management Office |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110427 Termination date: 20190730 |
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| CF01 | Termination of patent right due to non-payment of annual fee |