CN103354027A - Point-to-multipoint sampling value transmission method and system - Google Patents
Point-to-multipoint sampling value transmission method and system Download PDFInfo
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- CN103354027A CN103354027A CN2013102718411A CN201310271841A CN103354027A CN 103354027 A CN103354027 A CN 103354027A CN 2013102718411 A CN2013102718411 A CN 2013102718411A CN 201310271841 A CN201310271841 A CN 201310271841A CN 103354027 A CN103354027 A CN 103354027A
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Abstract
The invention relates to a point-to-multipoint sampling value transmission method and system. Sampling value information transmitted by a network card of a combiner based on IEC618509-2 standards is respectively input into a plurality of network ports built in the combiner and having same physical properties through corresponding buses, and the sampling value information output from each network port of the combiner is directly input into a network port of a corresponding bay level unit, thereby realizing point-to-multipoint transmission of the sampling value information. According to the invention, a sampling value data set can be flexibly customized, a network switch is not needed, negative influence of the switch on transmission of message is reduced to a greatest extent, and demands for direct sampling and direct tripping in construction of an intelligent transformer station are met.
Description
Technical field
The invention belongs to the relay protection automatic field, relate to a kind of point-to-multipoint sampled value transfer approach and system based on the IEC618509-2 standard.
Background technology
The cable that current Intelligent transformer station has been cancelled between traditional mutual inductor, traditional primary equipment and the equipment at process layer connects, progressively adopted photo-electric mutual inductor, intelligence interface, merge cells and optical fiber to connect, simultaneously, the sampled value exchange data using IEC61850-9-1 between process layer devices or 9-2 agreement.The 9-1 load mode is taked the multichannel point-to-point, but 9-1 is for transition and compatible old transmission mode.Used the conventional data collection with the IEC60044-8 compatibility, so the semanteme of data is fixing in the ASDU, so the sampling value message that sends from each merge cells is the same form, can not customize message format according to demand; The 9-2 load mode meets the developing direction of Digital Transmission networking, and by standard SCL file configuration data set, can customize according to demands such as functions the data of ASDU, adapt to multiple application demand, at present 9-2 based on the sampled value network load mode of switch as shown in Figure 1, the sampled value information that the combiner network interface goes out need just can be sent to bay device through the network switch, sampled value information delivery quality is subjected to the impact of the network switch like this, must be controlled transmitting flow, this load mode can not satisfy straight jumping is directly adopted in the intelligent substation construction to process layer technical requirement simultaneously.
Summary of the invention
Point of destination of the present invention needs just can be sent to bay device through the network switch to solve sampled value to multi-point sampling value transfer approach and system, can not satisfy the technical requirement of straight jumping is directly adopted in the intelligent substation construction to process layer problem.
For achieving the above object, point-to-multipoint sampled value transfer approach technical scheme of the present invention is as follows: import respectively the built-in identical network port of a plurality of physical attributes of combiner from the sampled value information based on the IEC618509-2 standard that the combiner network interface card sends into through respective bus, should directly import from the sampled value information that each network port of combiner is exported the network port of corresponding bay device into, realize the transmission of sampled value information from any to multiple spot.
Further, the ASDU data of described sampled value information for customizing according to demand.
Further, the network port that described a plurality of physical attribute is identical is at least two network ports that physical attribute is identical.
Point-to-multipoint sampled value transfer system of the present invention comprises combiner, be provided with a plurality of network ports and a combiner network interface card in this combiner, this combiner network interface card is continuous with the corresponding network port respectively by bus, and each network port on the combiner directly links to each other with each network port of bay device respectively.
Further, the physical attribute of each network port on the described combiner is identical.
Further, described a plurality of network port is at least two network ports.
Point-to-multipoint sampled value transfer approach of the present invention and system, send sampled value information to a plurality of network ports by the combiner network interface card, then be uploaded to the network port of corresponding bay device from a plurality of network ports, realize the transmission of sampled value information from any to multiple spot, this load mode is that unidirectional information transmits based on combiner to bay device, combiner need not bay device when sending sampled value this is replied, link to each other by bus respectively with a plurality of network interface card ports by means of the network interface card that sends sampled value information in the combiner, combiner is interior so that sampled value information is sent to a plurality of network ports, and a plurality of network ports can not receive any wall information, and the combiner network interface card that links to each other with the multi-channel network port so just can not produce conflict because multichannel data receives; Flexible customization sampled value data set need not the network switch, and the maximum reduction switch that limits realizes that to the negative effect that message transmits point-to-multipoint sampled value transmits, and satisfies and directly adopts the Intelligent transformer station construction demand of straight jumping.
Description of drawings
Fig. 1 is existing point-to-multipoint sampled value transfer system figure;
Fig. 2 is point-to-multipoint sampled value transfer system figure of the present invention.
Embodiment
Through 9-2 sampled value transport service is analyzed, combiner to bay device is that unidirectional information transmits, when combiner sends sampled value, need not bay device replys this, the present invention is directed to so this kind situation, on combiner, the network port is carried out the multichannel physical copy, be used for the network interface card that sampled value sends in the combiner, by bus and a plurality of physical internet ports, so when the combiner network interface card sends sampled value, information can be sent from a plurality of physical internet ports simultaneously, and directly is sent to bay device.Transmit because combiner to bay device is unidirectional information, the numerous physical internet ports of combiner do not receive any wall information, and the network interface card that links to each other with numerous physical internet ports so just can not produce conflict because multichannel data receives.Physical copy refers to that namely the physical attribute of a plurality of ports is identical.
Point-to-multipoint sampled value transfer system as shown in Figure 2, system comprises combiner, be provided with a plurality of network ports and a combiner network interface card in this combiner, this combiner network interface card is continuous with the corresponding network port respectively by bus, each network port on the combiner directly links to each other with each network port of bay device respectively, this system need not the network switch, can realize directly that point-to-multipoint sampled value transmits.
Point-to-multipoint sampled value transfer approach is: import respectively the built-in identical network port of a plurality of physical attributes of combiner from the sampled value information based on the IEC618509-2 standard that the combiner network interface card sends into through respective bus, directly import the network port of corresponding bay device from the sampled value information of each network port output of combiner into, realize the quick transmission of sampled value information from any to multiple spot.Sampling value message is followed the 9-2 standard, can realize according to functional requirement the customization of message data collection; Sampled value information can realize the Direct Sampling from the combiner to the bay device, the harmful effect of having avoided network switch access that sampled value information is transmitted; The method can directly apply in the Intelligent transformer station process layer that gets up take the IEC61850 standard as Foundation.
Claims (6)
1. point-to-multipoint sampled value transfer approach, it is characterized in that, import respectively the built-in identical network port of a plurality of physical attributes of combiner from the sampled value information based on IEC61850 9-2 standard that the combiner network interface card sends into through respective bus, should directly import from the sampled value information that each network port of combiner is exported the network port of corresponding bay device into, realize the transmission of sampled value information from any to multiple spot.
2. point-to-multipoint sampled value transfer approach according to claim 1 is characterized in that: the ASDU data of described sampled value information for customizing according to demand.
3. point-to-multipoint sampled value transfer approach according to claim 1 and 2, it is characterized in that: the identical network port of described a plurality of physical attributes is at least two network ports that physical attribute is identical.
4. point-to-multipoint sampled value transfer system, it is characterized in that: comprise combiner, be provided with a plurality of network ports and a combiner network interface card in this combiner, this combiner network interface card is continuous with the corresponding network port respectively by bus, and each network port on the combiner directly links to each other with each network port of bay device respectively.
5. point-to-multipoint sampled value transfer system according to claim 4, it is characterized in that: the physical attribute of each network port on the described combiner is identical.
6. according to claim 4 or 5 described point-to-multipoint sampled value transfer systems, it is characterized in that: described a plurality of network ports are at least two network ports.
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| CN2013102718411A CN103354027A (en) | 2013-06-28 | 2013-06-28 | Point-to-multipoint sampling value transmission method and system |
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| CN2013102718411A CN103354027A (en) | 2013-06-28 | 2013-06-28 | Point-to-multipoint sampling value transmission method and system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111308152A (en) * | 2020-04-09 | 2020-06-19 | 南京南瑞继保电气有限公司 | Protection method and system compatible with different types of mutual inductors |
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| CN101726652A (en) * | 2009-11-26 | 2010-06-09 | 深圳市双合电脑系统股份有限公司 | Method for sampling secondary loop in power system with optimized measurement accuracy |
| CN201774313U (en) * | 2010-06-07 | 2011-03-23 | 许继集团有限公司 | Process layer combining unit |
| WO2012127058A1 (en) * | 2011-03-24 | 2012-09-27 | Schneider Electric Energy Gmbh | Merging unit and method of operating a merging unit |
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| CN101057483A (en) * | 2004-11-16 | 2007-10-17 | Abb研究有限公司 | Reception of redundant and non-redundant frames |
| CN201191379Y (en) * | 2008-01-29 | 2009-02-04 | 江苏省电力试验研究院有限公司 | Digital protection and control device |
| CN101604474A (en) * | 2009-07-22 | 2009-12-16 | 天津市电力公司 | Time-division multiplexing alternating current sampling method for digital substation based on VLAN technology |
| CN101726652A (en) * | 2009-11-26 | 2010-06-09 | 深圳市双合电脑系统股份有限公司 | Method for sampling secondary loop in power system with optimized measurement accuracy |
| CN201774313U (en) * | 2010-06-07 | 2011-03-23 | 许继集团有限公司 | Process layer combining unit |
| WO2012127058A1 (en) * | 2011-03-24 | 2012-09-27 | Schneider Electric Energy Gmbh | Merging unit and method of operating a merging unit |
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| CN111308152A (en) * | 2020-04-09 | 2020-06-19 | 南京南瑞继保电气有限公司 | Protection method and system compatible with different types of mutual inductors |
| CN111308152B (en) * | 2020-04-09 | 2022-08-26 | 南京南瑞继保电气有限公司 | Protection method and system compatible with different types of mutual inductors |
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Application publication date: 20131016 |