CN103151830B - Substation with internal bridge automatic throw-in equipment of emergency power supply - Google Patents
Substation with internal bridge automatic throw-in equipment of emergency power supply Download PDFInfo
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- CN103151830B CN103151830B CN201310040670.1A CN201310040670A CN103151830B CN 103151830 B CN103151830 B CN 103151830B CN 201310040670 A CN201310040670 A CN 201310040670A CN 103151830 B CN103151830 B CN 103151830B
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- transformer
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- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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Abstract
The invention discloses a kind of substation with internal bridge automatic throw-in equipment of emergency power supply, it contains single-chip microcomputer, described single-chip microcomputer respectively with keyboard, display is connected with power module, the voltage of 1# transformer and 2# high voltage side of transformer and low-pressure side, the voltage of inlet wire 1 and inlet wire 2 and the electric current of inlet wire 1 and inlet wire 2, the low-pressure side electric current of 1# transformer and 2# transformer, the electric current of bridge in high-pressure side, low-pressure side segmented current inputs described single-chip microcomputer respectively by simulated measurement input circuit, the position signalling of each circuit breaker, the protection relay outlet of 1# transformer and 2# transformer and the block signal of outside input described single-chip microcomputer by switching value input circuit, described single-chip microcomputer controls combined floodgate or the tripping operation of respective circuit breakers respectively by switching value output circuit.The present invention adopts double loop power supply to power, and when a road power failure, another road power supply drops into automatically, and its switching speed is fast, effectively reduces interruption duration.
Description
technical field:
The present invention relates to a kind of power supply switching device, particularly relate to a kind of substation with internal bridge automatic throw-in equipment of emergency power supply.
background technology:
Along with the develop rapidly of economy, the demand of enterprises and institutions to electric power is increasing, and require the stable of supply of electric power and continue, in important electric unit, generally all adopt duplicate supply, when a road power failure, need to be switched to another power supply fast, reduce power-interrupt time as far as possible, according to manual switchover, just need to interrupt certain power-on time, this serves inconvenience to production band; In addition, the alternate power autocast of the transformer station of current internal bridge adopts two-part control mode, and control high-pressure side and low-pressure side respectively, cost is higher, and operation sequence is complicated, starting-up response overlong time.
summary of the invention:
Technical problem to be solved by this invention is: overcome the deficiencies in the prior art, provide a kind of reasonable in design, automatically switch, switching time the short and substation with internal bridge automatic throw-in equipment of emergency power supply of good reliability.
Technical scheme of the present invention is: a kind of substation with internal bridge automatic throw-in equipment of emergency power supply, containing single-chip microcomputer, described single-chip microcomputer respectively with keyboard, display is connected with power module, the voltage of 1# transformer and 2# high voltage side of transformer and low-pressure side, the voltage of inlet wire 1 and inlet wire 2 and the electric current of inlet wire 1 and inlet wire 2, the low-pressure side electric current of 1# transformer and 2# transformer, the electric current of bridge in high-pressure side, low-pressure side segmented current inputs described single-chip microcomputer respectively by simulated measurement input circuit, the position signalling of each circuit breaker, the protection relay outlet of 1# transformer and 2# transformer and the block signal of outside input described single-chip microcomputer by switching value input circuit, described single-chip microcomputer controls combined floodgate or the tripping operation of respective circuit breakers respectively by switching value output circuit.
Described single-chip microcomputer is connected from systematic communication network with comprehensive by communication interface circuit.Described single-chip microcomputer is connected with indicator light.
The invention has the beneficial effects as follows:
1, the present invention adopts double loop power supply to power, and when a road power failure, another road power supply drops into automatically, and its switching speed is fast, effectively reduces interruption duration.
2, the response time of the present invention is short, and low-pressure side controls the on high-tension side testing result such as not need can carry out, and efficiency is high, and cost is lower in addition, reduces the operation costs of transformer station.
3, the present invention is with full transforming plant primary system for Mathematical Modeling, is different from the electric pressure that other device is only limitted in transformer station high-pressure side, low-pressure side, uses more comprehensively.
4, the present invention can identify full Substation Bus Arrangement operational mode automatically, can adapt to the various fortune of transformer station
Line mode and do not need special customization, only completes the alternate power autocast of full transformer station, reduces investment outlay with a table apparatus.
5, there is not high-pressure side, low-pressure side operation time limit matching problem in the present invention, accelerates cutting speed degree, better the guaranteed load reliability of powering.
6, the present invention reasonable in design, automatically switch, switching time short and good reliability, it is applied widely, is particularly useful for the transformer station of internal bridge, is applicable to the occasion of transformer station's internal bridge high-pressure side, low-pressure side all open loop operation, be easy to promotion and implementation, there is good economic benefit.
accompanying drawing illustrates:
Fig. 1 is the Substation Bus Arrangement figure of internal bridge;
Fig. 2 is the hardware structure diagram of substation with internal bridge automatic throw-in equipment of emergency power supply;
Fig. 3 is the main program flow chart of substation with internal bridge automatic throw-in equipment of emergency power supply;
Fig. 4 is the block diagram of mode 1 handling procedure in Fig. 3;
Fig. 5 is the block diagram of mode 4 handling procedure in Fig. 3.
embodiment:
Embodiment: see Fig. 1-Fig. 5, in figure, 1-single-chip microcomputer, 2-power module, 3-integrated system communication network, 4-indicator light, 5-keyboard, 6-display.
Substation with internal bridge automatic throw-in equipment of emergency power supply contains single-chip microcomputer 1, single-chip microcomputer 1 respectively with keyboard 5, display 6 is connected with power module 2, the high-pressure side of 1# transformer 1T is connected with the power supply of inlet wire 1 by 1# high-pressure side circuit breaker 1QF, the low-pressure side of 1# transformer 1T is connected with low voltage equipment by 1# low-pressure side circuit breaker 4QF, the high-pressure side of 2# transformer 2T is connected with the power supply of inlet wire 2 by 2# high-pressure side circuit breaker 2QF, the low-pressure side of 2# transformer 2T is connected with low voltage equipment by 2# low-pressure side circuit breaker 5QF, be connected by high-pressure side circuit breaker 3QF between the high-pressure side of 1# transformer 1T and the high-pressure side of 2# transformer 2T, be connected by low-pressure side circuit breaker 6QF between the low-pressure side of 1# transformer 1T and the low-pressure side of 2# transformer 2T, the voltage of 1# transformer 1T and 2# transformer 2T high-pressure side and low-pressure side, the voltage of inlet wire 1 and inlet wire 2 and the electric current of inlet wire 1 and inlet wire 2, the low-pressure side electric current of 1# transformer 1T and 2# transformer 2T, the electric current of bridge in high-pressure side, low-pressure side segmented current inputs single-chip microcomputer 1 respectively by simulated measurement input circuit, the position signalling of each circuit breaker, the protection relay outlet of 1# transformer 1T and 2# transformer 2T and the block signal of outside are by switching value input circuit input single-chip microcomputer 1, single-chip microcomputer 1 controls combined floodgate or the tripping operation of respective circuit breakers respectively by switching value output circuit.
As required, single-chip microcomputer 1 is connected with integrated system communication network 3 by communication interface circuit.Single-chip microcomputer 1 is connected with indicator light 4.
Each U in Fig. 2, I is from TV each in Fig. 1, the electric current of TA secondary side and voltage, K1 in Fig. 2, the signals such as K2 are external switch amount signals, comprise the position signalling of each circuit breaker in Fig. 1, the protection of 1# and 2# transformer depressor (comprises main protection, high-pressure side backup protection, low-pressure side backup protection) relay outlet, outside block signal (comprises AAT device to drop into, change over switch out of service, brace, the outlet etc. of some protection), single-chip microcomputer 1 is to the analog quantity of input, switching value calculates, for Logic judgment after process, when meeting startup and action logic, tripping operation is sent by switching value output circuit, close a floodgate and order, and send alarm signal.Communication interface circuit is used for the information exchange between single-chip microcomputer 1 and comprehensive automation system of transformer substation.The 220V that outside provides by power module 2 exchanges or DC power supply is converted to protective device work required voltage.
The groundwork logic of patent device (being called for short AAT) is completed by main program and five mode handling procedures, and main program block diagram as shown in Figure 3; As shown in Figure 4, mode 2,3 handling procedure is similar to mode 1 for mode 1 handling procedure block diagram; As shown in Figure 4, mode 5 handling procedure is similar to mode 4 for mode 4 handling procedure block diagram.The general principle of each operational mode in Fig. 3, Fig. 4, entry condition and work is as shown in table 1.
Table 1
The identification of operational mode described in table 1 is realized by the situation of each relative breaker position signalling, 1TA ~ 4TA secondary side current in supervision transformer station; The judgement of each entry condition is change by monitoring each relevant protection act signal, each branch current, the change of circuit breaker position, the change of each busbar voltage complete realization.
The above, it is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, every above embodiment is done according to technical spirit of the present invention any simple modification, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (2)
1. a full standing posture automatic throw-in equipment of emergency power supply, containing single-chip microcomputer, described single-chip microcomputer respectively with keyboard, display is connected with power module, it is characterized in that: the voltage of 1# transformer and 2# high voltage side of transformer and low-pressure side, the voltage of inlet wire 1 and inlet wire 2 and the electric current of inlet wire 1 and inlet wire 2, the low-pressure side electric current of 1# transformer and 2# transformer, the electric current of bridge in high-pressure side, low-pressure side segmented current inputs described single-chip microcomputer respectively by simulated measurement input circuit, the position signalling of each circuit breaker, the protection relay outlet of 1# transformer and 2# transformer and the block signal of outside input described single-chip microcomputer by switching value input circuit, described single-chip microcomputer controls combined floodgate or the tripping operation of respective circuit breakers respectively by switching value output circuit, described single-chip microcomputer is connected with integrated system communication network by communication interface circuit.
2. full standing posture automatic throw-in equipment of emergency power supply according to claim 1, is characterized in that: described single-chip microcomputer is connected with indicator light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310040670.1A CN103151830B (en) | 2013-02-03 | 2013-02-03 | Substation with internal bridge automatic throw-in equipment of emergency power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310040670.1A CN103151830B (en) | 2013-02-03 | 2013-02-03 | Substation with internal bridge automatic throw-in equipment of emergency power supply |
Publications (2)
| Publication Number | Publication Date |
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| CN103151830A CN103151830A (en) | 2013-06-12 |
| CN103151830B true CN103151830B (en) | 2016-03-16 |
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| CN201310040670.1A Active CN103151830B (en) | 2013-02-03 | 2013-02-03 | Substation with internal bridge automatic throw-in equipment of emergency power supply |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103915826B (en) * | 2014-03-20 | 2016-09-28 | 广州南方电力集团科技发展有限公司 | Distribution network failure automatic decision that full chopper ring main unit is powered and the method for control |
| CN104104017B (en) * | 2014-07-21 | 2016-09-28 | 安徽鑫辰电气设备有限公司 | A kind of transformation cabinet with stand-by power supply |
| CN108063490A (en) * | 2017-12-01 | 2018-05-22 | 国网新疆电力公司吐鲁番供电公司 | AC/DC integrated power supply solar electric power supply system |
| CN109149570B (en) * | 2018-09-20 | 2022-01-11 | 国网江苏省电力有限公司镇江供电分公司 | Spare power automatic switching simplified relay protection method for internal bridge and single bus segmented wiring transformer substation |
| CN109491295B (en) * | 2018-12-05 | 2020-06-16 | 岭澳核电有限公司 | Control system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101316035A (en) * | 2007-05-31 | 2008-12-03 | 上海中发电力自动化有限公司 | Programmable control method of microcomputer complex protection device |
| CN101369739A (en) * | 2008-09-28 | 2009-02-18 | 上海宝钢化工有限公司 | Spare power automatic switching device and method for three-segment bus two-segment switch |
| CN201266791Y (en) * | 2008-08-27 | 2009-07-01 | 云南电网公司曲靖供电局 | Self-casting device of transforming plant lead-in side self-adapting standby power supply |
| CN203086234U (en) * | 2013-02-03 | 2013-07-24 | 郑州电力高等专科学校 | Total-station automatic throw-in equipment of emergency power supply |
-
2013
- 2013-02-03 CN CN201310040670.1A patent/CN103151830B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101316035A (en) * | 2007-05-31 | 2008-12-03 | 上海中发电力自动化有限公司 | Programmable control method of microcomputer complex protection device |
| CN201266791Y (en) * | 2008-08-27 | 2009-07-01 | 云南电网公司曲靖供电局 | Self-casting device of transforming plant lead-in side self-adapting standby power supply |
| CN101369739A (en) * | 2008-09-28 | 2009-02-18 | 上海宝钢化工有限公司 | Spare power automatic switching device and method for three-segment bus two-segment switch |
| CN203086234U (en) * | 2013-02-03 | 2013-07-24 | 郑州电力高等专科学校 | Total-station automatic throw-in equipment of emergency power supply |
Non-Patent Citations (1)
| Title |
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| 基于μC/OS-II的备用电源自动投入装置设计;徐金玲等;《单片机与嵌入式系统应用》;20050930;第56-59页 * |
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| CN103151830A (en) | 2013-06-12 |
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Inventor after: Li Quanyi Inventor after: Xu Feng Inventor after: Wang Ang Inventor before: Li Quanyi |
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