CN202916600U - Satellite timing device of electric power composite automation system - Google Patents
Satellite timing device of electric power composite automation system Download PDFInfo
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- CN202916600U CN202916600U CN2012204846843U CN201220484684U CN202916600U CN 202916600 U CN202916600 U CN 202916600U CN 2012204846843 U CN2012204846843 U CN 2012204846843U CN 201220484684 U CN201220484684 U CN 201220484684U CN 202916600 U CN202916600 U CN 202916600U
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Abstract
The utility model provides a satellite timing device of an electric power composite automation system. The satellite timing device of the electric power composite automation system comprises a GPS receiving module, a main control module MCU, an RS232 communication module and a 1PPS pulse output module. The GPS receiving module is connected with the main control module MCU and receives time information from a satellite. The RS232 communication module is connected with the main control module MCU and realizes level conversion and isolation of TTL/RS232. The main control module MCU is a core control module. The 1PPS pulse output module is connected with the GPS receiving module, generates and sends a pulse signal of hard timing, and realizes isolation with the GPS receiving module. According to the utility model, the satellite timing device of the electric power composite automation system solves the problem that the cost of the existing timing device of the electric power system is too high for a small system; a popular GPS timing module and an AVR novel eight bit microprocessor are used; the modular structure combination is used; at the same time the performance is ensured, the structure of a circuit is simplified; and the cost is greatly reduced.
Description
Technical field
The utility model relates to the comprehensive automation of electric power system technical field, particularly relates to a kind of satellite time transfer device of Comprehensive Automatic System for Substation.
Background technology
Clock synchronous is a basic demand of Comprehensive Automatic System for Substation, can not make between the station when error appears in clock or between system the enterprising line number of benchmark unified time according to one's analysis with relatively, also just can't distinguish successively sequence of movement of accident, also affect afterwards Correct Analysis and fault judgement when serious.After 6KV circuit distribution automation is transformed, its backstage clock is the machine system time, by the transformer substation communication manager by Ethernet to our station WAT02 type foreground microcomputer device carry out soft to the time, because contact manager does not access GPS and unifies time service, the low day error of its local clock timekeeping performance surpasses 2 seconds and differs larger with the standard time, can't ensure clock synchronous.In addition, at the 6KV distribution automation transformation trial run initial stage, the not smooth problem of ethernet communication does not thoroughly solve temporarily, and data transmission delays phenomenon and often occurs.Therefore, adopt the IRIG-B code data by the Ethernet transmission to the time scheme, it is larger to produce data stream, can not timely and effectively clock sync signal be transferred in each microcomputer device of foreground equally, but also can add restitution Internet Transmission burden, cause communication to be obstructed, also affect transmission or the consistency operation of other information when serious.
It is the time transfer device of power system described in the patented claim of CN03222435.4 at application number, and in other existing electric system Service of Timing by Satellite, the implementation of its circuit all is by GPS time service module, governor circuit, communication data treatment circuit, display part, the power supply unit the electric circuit constitute that grades is crossed the mode that TCP/IP Ethernet or CAN bus transmit step by step downwards with the main station time information exchange.Wherein, some time service device has also adopted temperature compensating crystal oscillator or rubidium atomic clock as time reference, and calibrates local clock in the redundant time service mode of double star, and the more output interface of having had more than needed, so that equipment manufacturing cost is high.In 6KV distribution automation mini system, because of each station foreground computer module device quantity relatively less, in addition above-mentioned communications problem, use existing satellite time transfer equipment, by the main website Ethernet concentrate soft to the time scheme obviously be not suitable for, and adopt respectively stand independent GPS firmly to the time scheme, according to the cost of existing time service equipment for mini system, input cost is too high, and is very uneconomical.We have invented a kind of satellite time transfer device of new Comprehensive Automatic System for Substation for this reason, have solved above technical matters.
Summary of the invention
The purpose of this utility model provides a kind of satellite time transfer device of Comprehensive Automatic System for Substation with low cost.
The purpose of this utility model can be achieved by the following technical measures: the satellite time transfer device of Comprehensive Automatic System for Substation, the satellite time transfer device of this Comprehensive Automatic System for Substation comprises the GPS receiver module, main control module MCU, RS232 communication module and 1PPS pulse output module, this GPS receiver module is connected in this main control module MCU, and reception is from the temporal information of satellite, this RS232 communication module is connected in this main control module MCU, and level conversion and the isolation of realization TTL/RS232, this main control module MCU is kernel control module, this 1PPS pulse output module is connected in this GPS receiver module, produce to send firmly to the time pulse signal, and realize isolation with this GPS receiver module.
The purpose of this utility model also can be achieved by the following technical measures:
The satellite time transfer device of this Comprehensive Automatic System for Substation also comprises LCD MODULE, and this LCD MODULE is connected in this main control module MCU, and is used for the duty demonstration.
The satellite time transfer device of this Comprehensive Automatic System for Substation also comprises the AC/DC power module, this AC/DC power module is used for carrying out the power supply conversion of 220V/12V, 5V, for the satellite time transfer device of this Comprehensive Automatic System for Substation provides required low-voltage dc power supply.
This GPS receiver module is GS-87 type plucked instrument husband three generations satellite time transfer receiver module.
This main control module MCU is the eight bit microprocessor chips of AVR, and model is ATMEGA8515.
The satellite time transfer device of the Comprehensive Automatic System for Substation in the utility model, according to 6KV distribution automation system demand, a kind of Low-cost GPS satellite synchronization time service solution is provided, the utility model mainly realize standing a GPS of foreground microcomputer cell arrangement firmly to the time, simultaneously also can realize that transformer station's backstage PC system clock is synchronous by the RS232 serial ports.The satellite time transfer device of the Comprehensive Automatic System for Substation in the utility model adopts popular GPS time service module and novel eight bit microprocessors of AVR, guaranteeing under the performance prerequisite, decrease cost.And adopt the modular organization combination, outstanding pulse firmly to the time parallel output function, default other communication interfaces more than needed have been simplified circuit structure, have further controlled cost, are convenient to popularize the GPS time service device and use in medium and small electric system.
Description of drawings
Fig. 1 is a specific embodiment structural drawing of the satellite time transfer device of Comprehensive Automatic System for Substation of the present utility model;
Fig. 2 is the elementary diagram of a specific embodiment of the satellite time transfer device of Comprehensive Automatic System for Substation of the present utility model;
Fig. 3 is the synoptic diagram in distribution automation of a specific embodiment of the satellite time transfer device of Comprehensive Automatic System for Substation of the present utility model.
Embodiment
For above and other purpose of the present utility model, feature and advantage can be become apparent, cited below particularlyly go out preferred embodiment, and cooperate appended graphicly, be described in detail below.
As shown in Figure 1, Fig. 1 is the structural drawing of the satellite time transfer device of Comprehensive Automatic System for Substation of the present utility model.The satellite time transfer device GPS receiver module 1 of this Comprehensive Automatic System for Substation, main control module MCU2, RS232 communication module 3,1PPS pulse output module 4, LCD MODULE 5 and AC/DC power module 6 form.Affiliated GPS receiver module 1 is connected with main control module MCU2,1PPS pulse output module 4 respectively, and main control module MCU2 also is connected with RS232 communication module 3, LCD MODULE 5.GPS receiver module 1 is used for receiving the temporal information from satellite, comprise the PPS signal, the UTC timing code, use the NMEA0183 protocol transmission, main control module MCU2 is used for the core control of this device, and finish the parsing of GPZDA statement in the NMEA0183 agreement of GPS receiver module 1, time conversion display driver etc., RS232 communication module 3 is used for finishing level conversion and the isolation of TTL/RS232,1PPS pulse output module 4 for generation of send firmly to the time pulse signal, and realize isolation with GPS receiver module 1, strengthen driving force, LCD MODULE 5 is used for duty and shows, comprise communications status, satellite data and outstanding local clock show, AC/DC power module 6 is used for finishing 220V/12V, the power supply conversion of 5V is for this device provides required low-voltage dc power supply.
Fig. 2 is the elementary diagram of a specific embodiment of the satellite time transfer device of Comprehensive Automatic System for Substation of the present utility model.In the described embodiment of Fig. 2, described GPS receiver module is GS-87 type plucked instrument husband three generations satellite time transfer receiver module, and main control module MCU is the eight bit microprocessor chips of AVR, and model is ATMEGA8515.
Fig. 3 is the synoptic diagram in distribution automation of a specific embodiment of the satellite time transfer device of Comprehensive Automatic System for Substation of the present utility model.As can be seen from Figure 3, the utility model in the WAT02 of transformer station integrated system for firmly to the time mode and adopt the autonomous channel, its firmly to the time be by connecting WAT02 foreground microcomputer device idle contact to the time terminal realize, then adopt the RS232 serial ports to be connected with backstage PC synchronization scenario, through the PC host computer to the time software finish the backstage time synchronously, these are independent mutually with the TCP/IP ethernet communication system of combining from device, can not cause any harmful effect to original system.After the enforcement and since former IRIG-B code book ground to the time do not re-use, can contact manager in this locality soft to the time be set to dead status.Therefore, enforcement of the present utility model also helps and alleviates present communication data transmission and delay phenomenon.
In the utility model, main control module MCU added with single-chip microcomputer program can realize this patent function, and single chip circuit, serial communication circuit, LCD MODULE etc. are and well known to a person skilled in the art circuit, and its circuit theory is no longer narrated at this.
Claims (1)
1. the satellite time transfer device of Comprehensive Automatic System for Substation, it is characterized in that, the satellite time transfer device of this Comprehensive Automatic System for Substation comprises the GPS receiver module, main control module MCU, RS232 communication module and 1PPS pulse output module, this GPS receiver module is connected in this main control module MCU, and reception is from the temporal information of satellite, this RS232 communication module is connected in this main control module MCU, and level conversion and the isolation of realization TTL/RS232, this main control module MCU is kernel control module, this 1PPS pulse output module is connected in this GPS receiver module, produce to send firmly to the time pulse signal, and realize isolation with this GPS receiver module.
2. the satellite time transfer device of Comprehensive Automatic System for Substation according to claim 1, it is characterized in that, the satellite time transfer device of this Comprehensive Automatic System for Substation also comprises LCD MODULE, and this LCD MODULE is connected in this main control module MCU, and is used for the duty demonstration.
3. the satellite time transfer device of Comprehensive Automatic System for Substation according to claim 1, it is characterized in that, the satellite time transfer device of this Comprehensive Automatic System for Substation also comprises the AC/DC power module, this AC/DC power module is used for carrying out the power supply conversion of 220V/12V, 5V, for the satellite time transfer device of this Comprehensive Automatic System for Substation provides required low-voltage dc power supply.
4. the satellite time transfer device of Comprehensive Automatic System for Substation according to claim 1 is characterized in that, this GPS receiver module is GS-87 type plucked instrument husband three generations satellite time transfer receiver module.
5. the satellite time transfer device of Comprehensive Automatic System for Substation according to claim 1 is characterized in that, this main control module MCU is the eight bit microprocessor chips of AVR, and model is ATMEGA8515.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204846843U CN202916600U (en) | 2012-01-30 | 2012-09-21 | Satellite timing device of electric power composite automation system |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220029459 | 2012-01-30 | ||
| CN201220029459.0 | 2012-01-30 | ||
| CN2012204846843U CN202916600U (en) | 2012-01-30 | 2012-09-21 | Satellite timing device of electric power composite automation system |
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| CN202916600U true CN202916600U (en) | 2013-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012204846843U Expired - Fee Related CN202916600U (en) | 2012-01-30 | 2012-09-21 | Satellite timing device of electric power composite automation system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293414A (en) * | 2013-05-21 | 2013-09-11 | 国家电网公司 | Intelligent substation protection device synchronization performance test system and method based on GPS (globe positioning system) accurate time synchronization technology |
| CN106455039A (en) * | 2016-11-08 | 2017-02-22 | 石家庄科林电气股份有限公司 | Communication terminal, network and method for improving time synchronization accuracy in power distribution network |
| CN106656451A (en) * | 2016-12-29 | 2017-05-10 | 中国科学院西安光学精密机械研究所 | Device and method for testing time keeping and time service precision based on satellite time service system |
| CN106849346A (en) * | 2015-12-03 | 2017-06-13 | 中国电力科学研究院 | A kind of system for testing power distribution automation equipment time adjustment function and timekeeping performance |
-
2012
- 2012-09-21 CN CN2012204846843U patent/CN202916600U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293414A (en) * | 2013-05-21 | 2013-09-11 | 国家电网公司 | Intelligent substation protection device synchronization performance test system and method based on GPS (globe positioning system) accurate time synchronization technology |
| CN106849346A (en) * | 2015-12-03 | 2017-06-13 | 中国电力科学研究院 | A kind of system for testing power distribution automation equipment time adjustment function and timekeeping performance |
| CN106455039A (en) * | 2016-11-08 | 2017-02-22 | 石家庄科林电气股份有限公司 | Communication terminal, network and method for improving time synchronization accuracy in power distribution network |
| CN106455039B (en) * | 2016-11-08 | 2019-08-23 | 石家庄科林电气股份有限公司 | Communication terminal, network and the method for clock synchronization precision are improved in a kind of power distribution network |
| CN106656451A (en) * | 2016-12-29 | 2017-05-10 | 中国科学院西安光学精密机械研究所 | Device and method for testing time keeping and time service precision based on satellite time service system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130501 Termination date: 20130921 |