CN103532235A - Power distribution terminal based on ColdFire architecture - Google Patents
Power distribution terminal based on ColdFire architecture Download PDFInfo
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- CN103532235A CN103532235A CN201310489971.2A CN201310489971A CN103532235A CN 103532235 A CN103532235 A CN 103532235A CN 201310489971 A CN201310489971 A CN 201310489971A CN 103532235 A CN103532235 A CN 103532235A
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Abstract
The invention discloses a power distribution terminal based on a ColdFire architecture. The power distribution terminal comprises a Coldfire processor, a three-remote functional module and a transceiver with a built-in high-precision IEEE (Institute of Electrical and Electronics Engineers) 1588 clock, wherein the Coldfire processor is connected with the three-remote functional module, and the Coldfire processor is connected with the transceiver. Circuit protection and network distribution three-remote functions are integrated in the power distribution terminal, the synchronous sampling and control on voltage and current in eight loops are realized, and intelligent power distribution and protection functions are realized. The power distribution terminal has the functions of a universal distribution network automation terminal. A high-precision synchronization function is realized through the adoption of the transceiver with the built-in high-precision IEEE 1588 clock.
Description
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Technical field
The present invention relates to distribution automation and relaying protection field, more specifically, relate to the distribution terminal of a kind of support IEEE1588 based on ColdFire framework.
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Background technology
Along with development communication technologies, intelligent grid technology based on the communication technology is applied more and more deep in electric power system, power communication system requires more and more higher to the synchronization accuracy between various terminal networks, traditional GPS mode and NTP synchronously can not meet all the more the requirement of current power system to clock synchronous.
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Summary of the invention
In order to overcome the deficiencies in the prior art, the present invention proposes the distribution terminal of a kind of support IEEE1588 based on ColdFire framework, introduce the terminal of supporting IEEE1588 synchronization mechanism, this terminal is to adopt the PTP method of synchronization, and this Terminal Type can be realized has universal distributing function and high precision clock synchronizing function; And can reach subnanosecond and precision.
To achieve these goals, technical scheme of the present invention is:
A kind of distribution terminal based on ColdFire framework, the transceiver that comprises Coldfire processor, three distant functional modules and built-in high accuracy IEEE 1588 clocks, described Coldfire processor is connected with three distant functional modules, and Coldfire processor is connected with transceiver.This distribution network terminal has route protection and the distant function of distribution three, can realize the synchronized sampling of the electric current and voltage in eight loops and control, realizes intelligent power distribution and defencive function.
Further, described transceiver is PHYTER transceiver.
Further, described distribution terminal also comprises that described support light mouth Ethernet and/or an electricity mouthful Ethernet are connected with transceiver for realizing support light mouth Ethernet and/or the electricity mouthful Ethernet of the high-precise synchronization work under multimachine networking model.
Further, described distribution terminal is the distribution terminal of supporting the clock synchronous of IEEE 1588, this distribution terminal with support IEEE 1588 clocks to time the synchronization accuracy of device reach 10ns.
Compared with prior art, beneficial effect of the present invention is:
The present invention has concentrated route protection and the distant function of distribution three, realizes the synchronized sampling of the electric current and voltage in eight loops and control, realizes intelligent power distribution and defencive function; The function with general distribution automation terminal.The present invention has adopted the transceiver of built-in high accuracy IEEE 1588 clocks, realizes high-precise synchronization effect.
Accompanying drawing explanation
Fig. 1 is simplified structure schematic diagram of the present invention.
Fig. 2 is distribution terminal networking mode and synchronised clock graph of a relation.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described, but embodiments of the present invention are not limited to this.
As Fig. 1, the distribution terminal of a kind of support IEEE1588 based on ColdFire framework, comprise Coldfire processor, the transceiver of three distant functional modules and built-in high accuracy IEEE1588 clock, Coldfire processor is connected with three distant functional modules, Coldfire processor is connected with transceiver, in the present embodiment, transceiver is DP83640 chip, this distribution terminal has route protection and the distant function of distribution three, realization is to the synchronized sampling of the electric current and voltage in eight loops and control, realize intelligent power distribution and defencive function, support the clock synchronous ability of IEEE 1588 simultaneously, with support IEEE 1588 clocks to time device reach the synchronization accuracy of 10ns, realize the high-precise synchronization work under multimachine networking model.
Hardware plan of the present invention is with reference to accompanying drawing 1, and its core is Coldfire processor unit and PHY transceiver, and three distant functional modules adopt the mode of synchronized sampling to realize the synchronized sampling of the electric current and voltage in eight loops and control, realize intelligent power distribution and defencive function; The voltage current transformer analog signal that transmission line or distribution become that is connected with outside observing and controlling object; The position signalling that entry loop gathers switch and subsidiary loop is opened in remote signalling, realizes the non electrical quantity protection that distribution is become.
During the support present same device networking of the present invention during to 1588 couples of IEEE, can realize each networking terminal master-salve clock to time, networking medium adopts common netting twine or fiber optic Ethernet mode.
Above-mentioned distribution terminal also has by time identification marker, is used to the packets of information that receives and send to stamp time mark.The IEEE 1588 split-second precision agreements (PTP) that this distribution terminal adopts are to be positioned at physical layer, therefore can be at position marks writing time of close netting twine, and resolution is up to 8ns, guarantees that system has high accuracy to control function.
Software scenario of the present invention is mainly according to PTP protocol frame, utilize the state machine module of PTP agreement, realize terminal power-up initializing state, malfunction under abnormal conditions, the state of intercepting generally, master clock state, from clock status and align mode not yet, according to networking situation, realize the PTP state of terminal own simultaneously and transform.
In software realization mode of the present invention, main each terminal best master clock of networking that adopts selects to confirm algorithm, local clock synchronized algorithm.Realize best master clock and taked two steps: by data set comparison algorithm, from each communication port of local clock system, select sync message the best in quality, then employing state is made a decision algorithm master clock more now and the precision attribute of local clock, determine that the residing state of current PTP agreement is after each terminal best master clock of networking chooses, just can adjust local zone time, guarantee to be consistent fiducial time with master clock, as Fig. 2.
Above-described embodiments of the present invention, do not form limiting the scope of the present invention.Any modification of having done within spiritual principles of the present invention, be equal to and replace and improvement etc., within all should being included in claim protection range of the present invention.
Claims (4)
1. the distribution terminal based on ColdFire framework, it is characterized in that, the transceiver that comprises Coldfire processor, three distant functional modules and built-in high accuracy IEEE 1588 clocks, described Coldfire processor is connected with three distant functional modules, and Coldfire processor is connected with transceiver.
2. the distribution terminal based on ColdFire framework according to claim 1, is characterized in that, described transceiver is PHYTER transceiver.
3. the distribution terminal based on ColdFire framework according to claim 1 and 2, it is characterized in that, described distribution terminal also comprises that described support light mouth Ethernet and/or an electricity mouthful Ethernet are connected with transceiver for realizing support light mouth Ethernet and/or the electricity mouthful Ethernet of the high-precise synchronization work under multimachine networking model.
4. the distribution terminal based on ColdFire framework according to claim 3, it is characterized in that, described distribution terminal is the distribution terminal of supporting the clock synchronous of IEEE 1588, this distribution terminal with support IEEE 1588 clocks to time the synchronization accuracy of device reach 10ns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310489971.2A CN103532235A (en) | 2013-10-18 | 2013-10-18 | Power distribution terminal based on ColdFire architecture |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310489971.2A CN103532235A (en) | 2013-10-18 | 2013-10-18 | Power distribution terminal based on ColdFire architecture |
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| CN103532235A true CN103532235A (en) | 2014-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310489971.2A Pending CN103532235A (en) | 2013-10-18 | 2013-10-18 | Power distribution terminal based on ColdFire architecture |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103915899A (en) * | 2014-03-27 | 2014-07-09 | 广州南方电力集团科技发展有限公司 | Autonomous networking structure and method for electric power automatic terminals |
| CN104202214A (en) * | 2014-09-10 | 2014-12-10 | 广西电网公司电力科学研究院 | Distribution automation wireless communication terminal and distribution master station communication channel delay test method |
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| CN101650548A (en) * | 2009-08-31 | 2010-02-17 | 江苏方天电力技术有限公司 | Time setting device for digital substation |
| CN201422028Y (en) * | 2009-04-14 | 2010-03-10 | 国电南瑞科技股份有限公司 | Substation measure and control device realizing precise time setting function of IEEE1588 |
| WO2012139655A2 (en) * | 2011-04-15 | 2012-10-18 | Siemens Aktiengesellschaft | Method and current measuring device for detecting current withdrawals or current feeds in a low-voltage electrical distribution system |
| CN203522333U (en) * | 2013-10-18 | 2014-04-02 | 广州南方电力集团科技发展有限公司 | Power distribution terminal based on ColdFire architecture |
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2013
- 2013-10-18 CN CN201310489971.2A patent/CN103532235A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201422028Y (en) * | 2009-04-14 | 2010-03-10 | 国电南瑞科技股份有限公司 | Substation measure and control device realizing precise time setting function of IEEE1588 |
| CN101650548A (en) * | 2009-08-31 | 2010-02-17 | 江苏方天电力技术有限公司 | Time setting device for digital substation |
| WO2012139655A2 (en) * | 2011-04-15 | 2012-10-18 | Siemens Aktiengesellschaft | Method and current measuring device for detecting current withdrawals or current feeds in a low-voltage electrical distribution system |
| CN203522333U (en) * | 2013-10-18 | 2014-04-02 | 广州南方电力集团科技发展有限公司 | Power distribution terminal based on ColdFire architecture |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103915899A (en) * | 2014-03-27 | 2014-07-09 | 广州南方电力集团科技发展有限公司 | Autonomous networking structure and method for electric power automatic terminals |
| CN104202214A (en) * | 2014-09-10 | 2014-12-10 | 广西电网公司电力科学研究院 | Distribution automation wireless communication terminal and distribution master station communication channel delay test method |
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Application publication date: 20140122 |