Hongke solution | a unique solution to realize seamless integration at low cost in Digital Substations

Siphonaceae RELY-SYNC-HSR/RPR-PCIe stay AP The application cases of sensor companies reflect the complexity of third-party technology suppliers in introducing new monitoring systems into time aware high reliability infrastructure , And Hongke RELY-SYNC-HSR/RPR-PCIe Can overcome this problem , And provide a cost-effective and standard compliant seamless integrated solution for the power sector .

Case background

AP Sensing It's optical sensing technology ( Distributed temperature 、 Acoustics and vibration sensing ） Leaders in the field ,2007 It came from HP / Agilent became independent , At present, there are more than 25 Years of experience , And in optical sensing （DTS, DAS, DVS） Aspect has high-quality and well-designed solutions , One of the application fields of these schemes is the power sector , Especially power stations and substations .

Now , The highest processing capacity of current equipment is an important aspect of promoting digital transformation , This means that advanced analysis needs to be carried out at a reasonable cost , You can also create a digital model based on many factors in the real world and predict future reactions based on specific input data . All the new AI （AI） Applied to different aspects of the operating system , And allow the creation of new applications based on vertical domains for these systems .

In the field of electricity , Today's power grid needs to operate at the highest possible level of safety capacity . To protect infrastructure , Applications with high safety factors are usually used , This may limit the effective use of power cable infrastructure . Real time thermal monitoring balances the need for asset protection and network performance optimization .

Distributed temperature sensing （DTS） It can continuously monitor the temperature of high-power cables , Detection hotspot , Provide operating status 、 Condition evaluation and power circuit rating data （ Real time thermal rating -RTTR, Dynamic cable rating -DCR）.DTS utilize Raman effect To measure the temperature . The optical laser pulse sent through the optical fiber causes some scattered light to be reflected back to the sending end , And analyze it there .

Raman scattering The intensity of is the measurement of the temperature along the optical fiber .Raman anti-Stokes signal The amplitude of will change significantly with the change of temperature , and Raman Stokes signal Is relatively stable .

The position of the temperature reading is determined by measuring the arrival time of the returned light pulse , Similar to radar echo .( chart a） This method is called OTDR（ Optical time domain reflectometer ）.

On the other hand , Distributed acoustic sensors (DAS) Provide fault detection and TPI( Third party interference ） Protect , Like land （ Excavation and drilling ） And the seabed （ Anchor rod dropping and dragging ） The application of . This helps optimize transmission and Distribution Networks , And reduce operating costs . These systems detect vibration and capture sound energy along the fiber , The function of the optical fiber is like installing thousands of microphones , Classification algorithm is used to detect and locate , For example, invasion activities .

Problems and challenges in the case

2017 year ,AP Sensing A new monitoring system has been implemented in Saudi Arabia , For local 5 A digital substation . Its customers have implemented highly reliable networks on their control and station buses , The contractor must adapt his communication to the existing network . Diversified DAS/DVS technology , According to different applications and project requirements ,AP Sensing Can provide the most appropriate technology , And fully integrate it into AP Sensing Our software suite .


Now , It is necessary for key systems to use highly reliable networks , From a technical point of view , The state-of-the-art solution can ensure that in a single network failure and " Plug and play " Operation without losing packets . Besides , Customers need interoperable standardized solutions , In order to avoid using proprietary methods . Based on practical needs , International Electrotechnical Commission （IEC） We have stepped up the release of solutions based on high reliability Ethernet , This includes highly reliable seamless redundancy （HSR,IEC 62439-3-Clause 5） And parallel redundancy protocol （PRP, IEC 62439-3-Clause 4） These two protocols guarantee zero delay recovery time in case of network failure .

PRP The redundancy of is realized in the node rather than in the network , Especially suitable nodes （Dual Attached Nodes DANs） Connected to two separate Ethernet Networks （LAN A and LAN B）, And send the same frame on both networks .

One of the requirements of the substation project is to use hardware based PRP signal communication , Instead of protocol based software . Use hardware PRP The advantage of the scheme is to achieve low latency 、 High throughput , most important of all , The solution is device independent CPU It can bring more stability . Besides , Hardware based PRP The scheme avoids the host CPU It is implemented by software IEEE 1588 standard , Because this kind of software will be required for Transparent Clock operation , And exchanged IEEE 1588 Frames also need this software , Thus become PRP A significant risk of software solutions .

at present , this 5 A high-quality hardware has been deployed in substations PRP The Internet , And we hope that the performance of all terminal devices will be at the same level . On the other hand ,AP Sensing Complex communications have to be handled , Otherwise, it may affect the performance of its application .

Siphonaceae RELY-SYNC-HSR/PRP-PCIe Solution

On Hongke RELY-SYNC-HSR/PRP-PCIe After the card is fully tested ,AP Sensing It is verified that the solution is the best solution in the substation project .

Siphonaceae RELY-SYNC-HSR/PRP-PCIe One of the main benefits of the scheme is that it is independent of the operating system in its computer . This feature simplifies the integration required for new projects , So as to save cost . Besides , Customers can integrate and monitor new devices in their networks .

The device configuration used in this case is based on a single RELY-SYNC-HSR/PRP-PCle card , Three configurable SFP port . One of the ports passes through a 1000 Base X Optical fiber SFP Connect to optical fiber sensor , Allows high-speed data reception from optical fiber sensors . The other two SFP The port is used to pass 100 Base FX Optical fiber SFP Connect the processor unit to PRP The Internet , Convert the processor unit in the double connection node of the substation network , And avoid the need for additional network equipment .

One of the ports passes through a 1000 Base X Optical fiber SFP Connect to optical fiber sensor , Allows high-speed data reception from optical fiber sensors . The other two SFP The port is used to pass 100 Base FX Optical fiber SFP Connect the processor unit to PRP The Internet , transformation The processor unit in the double connection node of the substation network , And avoid the need for additional network equipment .

Siphonaceae RELY The core of the series of devices is based on multi-core programmability SoC Electronic architecture , Meet the requirements of edge data acquisition 、 The most demanding requirements in computing and network applications . The embedded CPU yes ARM processor , With the leading FPGA Share the same silicon chip . This reconfigurable logic supports temporary hardware cores for low latency secure networks and parallel data preprocessing , And other liquid hardware microservices . therefore , Another key advantage of this technology is the ability to upgrade remotely , To implement the new standard version .

To learn more , Please feel free to pass [email protected] Contact Hongke .