WO2025007475A1 - 转换装置及变电站 - Google Patents

转换装置及变电站 Download PDF

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Publication number
WO2025007475A1
WO2025007475A1 PCT/CN2023/132277 CN2023132277W WO2025007475A1 WO 2025007475 A1 WO2025007475 A1 WO 2025007475A1 CN 2023132277 W CN2023132277 W CN 2023132277W WO 2025007475 A1 WO2025007475 A1 WO 2025007475A1
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WO
WIPO (PCT)
Prior art keywords
protocol
interface
module
data
conversion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2023/132277
Other languages
English (en)
French (fr)
Inventor
王崇禧
文正武
张旭
颜志伟
张小强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Contemporary Amperex Technology Co Ltd
Original Assignee
Contemporary Amperex Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Contemporary Amperex Technology Co Ltd filed Critical Contemporary Amperex Technology Co Ltd
Priority to EP23944196.7A priority Critical patent/EP4742638A1/en
Publication of WO2025007475A1 publication Critical patent/WO2025007475A1/zh
Priority to US19/438,690 priority patent/US20260129107A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/10—Current supply arrangements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network
    • H02J13/13—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network characterised by the transmission of data to equipment in the power network
    • H02J13/1321—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network characterised by the transmission of data to equipment in the power network using a wired telecommunication network or a data transmission bus
    • H02J13/1323—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network characterised by the transmission of data to equipment in the power network using a wired telecommunication network or a data transmission bus using optical fibres
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network
    • H02J13/18—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network characterised by the remotely-controlled equipment, e.g. converters or transformers
    • H02J13/333—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network characterised by the remotely-controlled equipment, e.g. converters or transformers the equipment forming part of substations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L12/407—Bus networks with decentralised control
    • H04L12/413—Bus networks with decentralised control with random access, e.g. carrier-sense multiple-access with collision detection [CSMA-CD]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/08—Protocols for interworking; Protocol conversion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L2012/40208—Bus networks characterized by the use of a particular bus standard
    • H04L2012/40215—Controller Area Network CAN
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks

Definitions

  • the present application relates to the field of optoelectronic communication technology, and in particular to a conversion device and a substation.
  • Substations are modern substations built on the basis of communication specifications, which can realize information sharing and interoperability among intelligent electrical equipment in the substation.
  • substations include substation intelligent devices and energy storage systems.
  • Substation intelligent devices such as optical CT, optical PT, control and protection devices, etc.
  • energy storage systems usually use the controller area network protocol (CAN, Controller Area Network) for communication, and do not support communication protocol communication, resulting in the inability of the energy storage system to communicate directly with the substation intelligent devices.
  • controller area network protocol CAN, Controller Area Network
  • Existing products on the market generally convert optical fiber into optical fiber Ethernet or optical fiber serial port, and two devices need to be paired to achieve CAN bridging to improve the transmission distance and anti-interference ability of CAN communication.
  • the mutual conversion between CAN protocol data and communication protocol data cannot be realized, and the communication efficiency is low.
  • the present application provides a conversion device and a substation, which can realize mutual conversion between CAN protocol data and standard protocol data, thereby improving communication efficiency.
  • the present application provides a conversion device, comprising:
  • a protocol conversion module wherein the protocol conversion module is provided with a first interface and a second interface, the first interface is connected to the CAN protocol transceiver interface, and the second interface is connected to the communication protocol transceiver interface;
  • the protocol conversion module is configured to convert first data into second data, or to convert the second data into the first data, wherein the first data is transmitted using the CAN protocol and the second data is transmitted using the communication protocol.
  • the first data transmitted using the CAN protocol and the second data transmitted using the communication protocol are sent to the protocol conversion module through the CAN protocol transceiver interface and the communication protocol transceiver interface for conversion between the protocol data, thereby realizing mutual conversion between the CAN protocol data and the communication protocol data, thereby improving the communication efficiency between the energy storage system in the smart substation and the substation smart device.
  • the protocol conversion module includes a control unit; or
  • the protocol conversion module includes a control unit and a programmable logic gate array which are connected to each other.
  • the conversion between the CAN protocol and different types of communication protocols can be met, and the device has strong versatility.
  • the control unit stores a configuration file, and the control unit converts the first data into the second data, or converts the second data into the first data, through the configuration file.
  • the versatility of the conversion device for protocol conversion can be improved through the configuration file in the control unit
  • the second interface when the protocol conversion module includes the programmable logic gate array, the second interface includes a plurality of first sub-interfaces and a plurality of second sub-interfaces;
  • the first interface is provided in the control unit, and the first sub-interface and the second sub-interface are provided in the programmable logic gate array; or
  • the first interface and the second sub-interface are arranged in the control unit, and the first sub-interface is arranged in the programmable logic gate array.
  • the first sub-interface is an Ethernet protocol data transceiver interface configured to send and receive Ethernet protocol data;
  • the second sub-interface is a custom protocol data transceiver interface configured to send and receive custom protocol data.
  • the second sub-interface can be flexibly set according to actual protocol conversion requirements to reduce equipment manufacturing costs.
  • the protocol conversion module further includes an Ethernet data link layer driver and a custom protocol conversion submodule respectively connected to the communication protocol transceiver interface.
  • Ethernet data link layer driver and the custom protocol conversion submodule By setting the Ethernet data link layer driver and the custom protocol conversion submodule, valid data in the first data and the second data can be extracted or encapsulated, thereby improving the conversion efficiency.
  • the Ethernet data link layer driver is arranged in the programmable logic gate array
  • the custom protocol conversion submodule is arranged in the programmable logic gate array or the control unit, wherein the first sub-interface is arranged in the Ethernet data link layer driver, and the second sub-interface is arranged in the custom protocol conversion submodule;
  • the Ethernet data link layer driver is configured to transmit Ethernet protocol data
  • the custom protocol conversion submodule is configured to transmit custom protocol data.
  • Ethernet data link layer driver and the custom protocol conversion submodule By setting the Ethernet data link layer driver and the custom protocol conversion submodule, valid data in the first data and the second data can be extracted or encapsulated, thereby improving the conversion efficiency.
  • the conversion device also includes a CAN protocol transceiver module and a communication protocol transceiver module, the CAN protocol transceiver module is connected to the protocol conversion module via the CAN protocol transceiver interface, and the communication protocol transceiver module is connected to the protocol conversion module via the communication protocol transceiver interface.
  • the communication protocol transceiver module includes a custom protocol transceiver submodule and multiple Ethernet protocol transceiver submodules, the custom protocol transceiver submodule is connected to the custom protocol conversion submodule, and the multiple Ethernet protocol transceiver submodules are all connected to the Ethernet data link layer driver.
  • the Ethernet protocol transceiver submodule includes a port physical layer and a first optoelectronic module connected to each other, the Ethernet data link layer driver is connected to the port physical layer through the first sub-interface, the first optoelectronic module is provided with an Ethernet communication interface, wherein the port physical layer is configured to perform signal format conversion on the Ethernet protocol data received and sent by the Ethernet communication interface.
  • the custom protocol transceiver submodule includes a driving module and a plurality of second optoelectronic modules connected to the driving module, the custom protocol conversion submodule is connected to the driving module via a second sub-interface, a custom protocol communication interface is provided in the second optoelectronic module, wherein the driving module is configured to perform signal format conversion on the custom protocol data sent and received by the custom protocol communication interface.
  • the driving module By setting up the driving module, the second photoelectric module and the custom protocol communication interface, the accurate reception and transmission of the custom protocol data can be realized, thereby improving the working efficiency of the conversion device.
  • the CAN protocol transceiver module includes multiple CAN protocol transceivers, and each of the multiple CAN protocol transceivers is redundant with each other; the CAN protocol transceiver is provided with a CAN communication interface, and the CAN communication interface is configured to transmit the first data.
  • the CAN protocol transceiver module also includes an isolation module connected to the multiple CAN protocol transceivers, and the isolation module is also connected to the control unit; the isolation module is configured to isolate the CAN protocol transceiver from the control unit to prevent the voltage in the CAN protocol transceiver from damaging the control unit.
  • the CAN protocol transceivers of other paths can be automatically switched to transmit the first data, thereby improving the efficiency of the conversion device. Fault tolerance.
  • the conversion device also includes a power supply module, which is respectively connected to the protocol conversion module and the CAN protocol transceiver module, and the power supply module is configured to supply power to the protocol conversion module and the CAN protocol transceiver module.
  • the power supply module includes a redundant power supply sub-module, and an isolated power supply and a power conversion module respectively connected to the redundant power supply sub-module, the redundant power supply sub-module is connected to the protocol conversion module, and the isolated power supply is also connected to the CAN protocol transceiver, wherein the redundant power supply sub-module also includes multiple power input interfaces, and each of the multiple power input interfaces is redundant with each other.
  • the present application provides a substation, comprising a conversion device as described in any embodiment of the first aspect.
  • FIG1 is a schematic structural diagram of a conversion device according to an embodiment of the present application.
  • FIG2 is a schematic diagram of a structure of a control unit included in a protocol conversion module according to an embodiment of the present application
  • FIG3 is another structural schematic diagram of a protocol conversion module including a control unit and a programmable logic gate array according to an embodiment of the present application;
  • FIG4 is a schematic diagram of a protocol conversion module including a second interface according to an embodiment of the present application.
  • FIG5 is another schematic diagram of the structure of a protocol conversion module including a second interface according to an embodiment of the present application.
  • FIG6 is a schematic diagram of a structure of a protocol conversion module including submodules according to an embodiment of the present application.
  • FIG7 is another structural diagram of a protocol conversion module including submodules according to an embodiment of the present application.
  • FIG8 is a schematic diagram of a connection structure between a protocol conversion module and a communication protocol transceiver module according to an embodiment of the present application
  • FIG9 is another schematic structural diagram of a conversion device according to an embodiment of the present application.
  • FIG. 10 is a schematic diagram of another connection structure between a protocol conversion module and a communication protocol transceiver module according to an embodiment of the present application;
  • FIG11 is another schematic structural diagram of a conversion device according to an embodiment of the present application.
  • FIG. 12 is another schematic diagram of the structure of a conversion device according to an embodiment of the present application.
  • CAN protocol transceiver module 1: CAN protocol transceiver module; 2: protocol conversion module; 3: communication protocol transceiver module; 21: first interface; 22: second interface; 11: CAN protocol transceiver; 12: isolation module; 13: CAN communication interface; 23: control unit; 24: programmable logic gate array; 241: Ethernet data link layer driver; 242: custom protocol conversion submodule; 221: first subinterface; 222: second subinterface; 31: Ethernet protocol transceiver submodule; 32: custom protocol transceiver submodule; 311: port physical layer; 312: first optoelectronic module; 3121: Ethernet communication interface; 321: driver module; 322: second optoelectronic module; 3221: custom protocol communication interface; 4: power supply module; 41: redundant power supply submodule; 42: isolation power supply; 43: power conversion module; 14: CAN protocol transceiver interface; 33: communication protocol transceiver interface.
  • Substation intelligent devices such as optical CT, optical PT, control and protection devices, etc.
  • IEC60044-8 protocol and optical fiber communication for data exchange
  • IEC61850MMS, Goose, SV protocol and optical fiber communication to interconnect different devices.
  • energy storage systems usually use CAN protocol for communication and do not support IEC61850MMS, Goose, SV protocol and optical fiber communication, resulting in the inability of energy storage systems to communicate directly with substation intelligent devices.
  • Existing products on the market generally convert optical fiber into optical fiber Ethernet or optical fiber serial port, and two devices need to be paired to realize CAN bridging to improve the transmission distance and anti-interference ability of CAN communication.
  • the mutual conversion between CAN protocol data and standard protocol data cannot be realized, and the communication efficiency is low.
  • an embodiment of the present application provides a conversion device and a substation.
  • the conversion device and the substation provided by the embodiment of the present application will be described in detail below in conjunction with the accompanying drawings.
  • the conversion device disclosed in the embodiment of the present application can be widely used in various industrial control, process control, traffic control and other occasions.
  • Fig. 1 is a schematic diagram of the structure of a conversion device according to an embodiment of the present application. As shown in Fig. 1 , the conversion device includes a CAN protocol transceiver interface 14, a communication protocol transceiver interface 33 and a protocol conversion module 2.
  • the model of the protocol conversion module 2 may be Xilinx ZYNQ 7010.
  • the protocol conversion module 2 is provided with a first interface 21 and a second interface 22, the first interface 21 is connected to the CAN protocol transceiver interface 14, and the second interface 22 is connected to the communication protocol transceiver interface 33; the first interface 21 is used to connect the CAN protocol transceiver interface 14 and the protocol conversion module 2, and at the same time, the first data is transmitted between the protocol conversion module 2 and the CAN protocol transceiver interface 14.
  • the second interface 22 is used to connect the communication protocol transceiver interface 33 and the protocol conversion module 2, and at the same time, the second data is transmitted between the communication protocol transceiver interface 33 and the protocol conversion module 2.
  • the CAN protocol transceiver interface 14 is used for receiving and sending first data
  • the communication protocol transceiver interface 33 is used for receiving and sending second data.
  • the CAN protocol transceiver interface 14 receives the first data to be converted from the outside and sends it to the protocol conversion module 2.
  • the protocol conversion module 2 converts the first data transmitted in the CAN protocol into the second data transmitted in the communication protocol, and finally outputs the second data through the communication protocol transceiver interface 33.
  • the communication protocol transceiver interface 33 receives the second data to be converted from the outside and sends it to the protocol conversion module 2.
  • Module 2 the protocol conversion module 2 converts the second data transmitted by the communication protocol into the first data transmitted by the CAN protocol, and finally outputs the first data through the CAN protocol transceiver interface 14.
  • the first data transmitted using the CAN protocol and the second data transmitted using the communication protocol can be sent to the protocol conversion module 2 through the CAN protocol transceiver interface 14 and the communication protocol transceiver interface 33 for conversion between the protocol data, thereby realizing mutual conversion between the CAN protocol data and the standard protocol data, thereby improving the communication efficiency between the energy storage system in the smart substation and the substation smart device.
  • Fig. 2 is a schematic diagram of a protocol conversion module including a control unit according to an embodiment of the present application.
  • Fig. 3 is another schematic diagram of a protocol conversion module including a control unit and a programmable logic gate array according to an embodiment of the present application.
  • the protocol conversion module 2 includes a control unit 23 ; or the protocol conversion module 2 includes a control unit 23 and a programmable logic gate array 24 that are interconnected.
  • the control unit 23 may adopt a single-core ARM processor or a heterogeneous dual-core ARM processor.
  • the protocol conversion module 2 includes two configuration modes, one of which may only include the control unit 23, and the other includes the control unit 23 and the programmable logic gate array 24.
  • the conversion device can realize the conversion between the CAN protocol and the remaining communication protocols except the Ethernet protocol, such as IEC61850MMS, IEC 60870-5-101/10, Goose and SV protocols.
  • the conversion device can realize the conversion between the CAN protocol and all communication protocols including the Ethernet protocol, such as Ethernet protocols such as IEC61850 protocol and IEC60044-8 protocol, and IEC61850MMS, IEC 60870-5-101/10, Goose and SV protocols.
  • Ethernet protocols such as IEC61850 protocol and IEC60044-8 protocol, and IEC61850MMS, IEC 60870-5-101/10, Goose and SV protocols.
  • the conversion device can also realize conversion between different communication protocols, for example: mutual conversion between IEC61850 protocol, IEC60044-8 protocol, IEC61850MMS, IEC 60870-5-101/10, Goose and SV protocols.
  • the protocol conversion module 2 includes a control unit 23 and a programmable logic gate array 24, the control unit 23 and the programmable logic gate array 24 can communicate with each other through an internal high-speed bus.
  • the control unit 23 is used to detect the first valid data transmitted by the CAN protocol in the first data input through the CAN protocol transceiver interface 14, and then convert the first valid data into the second valid data transmitted by the communication protocol.
  • the programmable logic gate array 24 is used to repackage the second valid data and then output it through the communication protocol transceiver interface 33. out.
  • the programmable logic gate array 24 is used to extract the second valid data from the second data after detecting the second data input through the communication protocol transceiver interface 33.
  • the control unit 23 is used to convert the second valid data into the first valid data transmitted by the CAN protocol.
  • the control unit 23 is used to, after detecting the first valid data transmitted by the CAN protocol in the first data input through the CAN protocol transceiver interface 14, convert the first valid data into second valid data transmitted by the communication protocol, and re-encapsulate the second valid data and output it through the communication protocol transceiver interface 33.
  • the device has strong versatility.
  • Figure 4 is a schematic diagram of the structure of a protocol conversion module including a second interface according to an embodiment of the present application
  • Figure 5 is another schematic diagram of the structure of a protocol conversion module including a second interface according to an embodiment of the present application
  • a configuration file is stored in the control unit 23, and the control unit 23 converts the first data into the second data, or converts the second data into the first data, through the configuration file.
  • the configuration file is stored in the control unit 23.
  • the memory in the control unit 23 needs to be called to complete the conversion between various protocols.
  • the configuration file is also used to configure the conversion method between various protocols, for example: the conversion method between the CAN protocol and the IEC61850 protocol, the CAN protocol and the IEC60044-8 protocol, etc.
  • the configuration file can be synchronously updated to complete the conversion between various protocols, which can improve the versatility of the conversion device for protocol conversion.
  • the second interface 22 when the protocol conversion module 2 includes a programmable logic gate array 24, the second interface 22 includes a first sub-interface 221 and a second sub-interface 222; the first interface 21 is arranged in the control unit 23, and the first sub-interface 221 and the second sub-interface 222 are arranged in the programmable logic gate array 24; or the first interface 21 and the second sub-interface 222 are arranged in the control unit 23, and the first sub-interface 221 is arranged in the programmable logic gate array 24.
  • the first interface 21 is used to connect the control unit 23 and the CAN protocol transceiver interface 14, and transmit the first data between the control unit 23 and the CAN protocol transceiver interface 14.
  • the interface 221 is an Ethernet protocol data transceiver interface, configured to transceive Ethernet protocol data.
  • the second sub-interface 222 is a custom protocol data transceiver interface, configured to transceive custom protocol data.
  • Ethernet protocol data includes IEC61850 protocol and IEC60044-8 protocol
  • custom protocols include standard protocols in the communication field and protocols developed by technicians themselves, wherein standard protocols include, for example, IEC61850 protocol, IEC60044-8 protocol, IEC61850MMS, IEC 60870-5-101/10, Goose and SV protocols.
  • the second sub-interface 222 can be flexibly set in combination with actual protocol conversion requirements to reduce the device manufacturing cost.
  • Figure 6 is a schematic diagram of the structure of a protocol conversion module including submodules according to an embodiment of the present application
  • Figure 7 is another schematic diagram of the structure of a protocol conversion module including submodules according to an embodiment of the present application
  • the protocol conversion module 2 also includes an Ethernet data link layer driver 241 and a custom protocol conversion submodule 242 respectively connected to the communication protocol transceiver module 3.
  • the Ethernet data link layer driver 241 is configured to extract Ethernet valid data from the Ethernet protocol data of the communication protocol transceiver module 3, or to re-encapsulate the Ethernet valid data from the control unit 23 into the protocol format to be converted and output it to the communication protocol transceiver interface 33.
  • the Ethernet data link layer driver 241 encapsulates the Ethernet valid data into data in the IEC61850 protocol format and outputs it to the communication protocol transceiver interface 33.
  • the custom protocol conversion submodule 242 is configured to extract custom valid data from the custom protocol data of the communication protocol transceiver interface 33, or to repackage the custom valid data from the control unit 23 into the protocol format to be converted and output it to the communication protocol transceiver interface 33. For example, when receiving custom valid data from the control unit 23, the data needs to be converted into IEC61850MMS protocol data, then the custom protocol conversion submodule 242 packages the custom valid data into data in the IEC61850MMS protocol format and outputs it to the communication protocol transceiver interface 33.
  • the valid data in the first data and the second data can be extracted or encapsulated, thereby improving the conversion efficiency.
  • the Ethernet data link layer driver 241 is disposed in the programmable logic gate array 24, and the custom protocol conversion submodule 242 is disposed in the programmable logic gate array 24 or the control unit 23, wherein: The first sub-interface 221 is provided in the Ethernet data link layer driver 241 , and the second sub-interface 222 is provided in the custom protocol conversion sub-module 242 .
  • Ethernet data link layer driver 241 is configured to transmit Ethernet protocol data;
  • the custom protocol conversion submodule 242 is configured to transmit custom protocol data. It is understandable that the custom protocol conversion submodule 242 can be set in the programmable logic gate array 24 or in the control unit 23.
  • the first sub-interface 221 is used to connect the Ethernet data link layer driver 241 and the communication protocol transceiver interface 33 to complete the transmission and reception of Ethernet data between the two.
  • the second sub-interface 222 is used to connect the custom protocol conversion submodule 242 and the communication protocol transceiver interface 33 to complete the transmission and reception of custom protocol data between the two.
  • FIG. 8 is a schematic diagram of a connection structure between a protocol conversion module and a communication protocol transceiver module according to an embodiment of the present application
  • the conversion device also includes a CAN protocol transceiver module 1 and a communication protocol transceiver module 3.
  • the CAN protocol transceiver module 1 is connected to the protocol conversion module 2 via a CAN protocol transceiver interface 14, and the communication protocol transceiver module 3 is connected to the protocol conversion module 2 via a communication protocol transceiver interface 33.
  • the communication protocol transceiver interface 33 includes an Ethernet protocol transceiver interface and a custom protocol transceiver interface, wherein the Ethernet protocol transceiver interface is connected to the first sub-interface 221 for sending and receiving Ethernet protocol data, and the communication protocol transceiver interface is connected to the second sub-interface 222 for sending and receiving custom protocol data.
  • Figure 9 is another structural schematic diagram of a conversion device according to an embodiment of the present application
  • Figure 10 is another structural schematic diagram of a connection between a protocol conversion module and a communication protocol transceiver module according to an embodiment of the present application
  • the communication protocol transceiver module 3 includes a custom protocol transceiver submodule 32 and multiple Ethernet protocol transceiver submodules 31.
  • the custom protocol transceiver submodule 32 is connected to the custom protocol conversion submodule 242, and the multiple Ethernet protocol transceiver submodules 31 are all connected to the Ethernet data link layer driver 241.
  • the custom protocol transceiver submodule 32 is configured to receive the custom protocol data sent by the protocol conversion module, and convert the custom protocol data into an optical signal for output;
  • the Ethernet protocol transceiver submodule 31 is configured to convert the Ethernet protocol data into an optical signal for output.
  • the transmission of the custom protocol data and the Ethernet protocol data can be realized through the custom protocol transceiver submodule 32 and the Ethernet protocol transceiver submodule 31.
  • the Ethernet protocol transceiver submodule 31 includes a port physical layer 311 and a first optoelectronic module 312 that are interconnected, the Ethernet data link layer driver 241 is connected to the port physical layer 311 through the first sub-interface 221, and the first optoelectronic module 312 is provided with an Ethernet communication interface 3121, wherein the port physical layer 311 is configured to perform signal format conversion on the Ethernet protocol data received and sent by the Ethernet communication interface 3121 .
  • the port physical layer 311 is a PHY chip, which is composed of a physical layer interface, a chip and a peripheral circuit.
  • the port physical layer 311 converts the signal format of the Ethernet protocol data sent by the Ethernet communication interface 3121 from an analog signal to a digital signal, and sends it to the Ethernet data link layer driver 241.
  • the signal format of the Ethernet protocol data sent by the Ethernet data link layer driver 241 is converted from a digital signal to an analog signal, and sent to the first optoelectronic module 312.
  • the first optoelectronic module 312 is configured to complete the mutual conversion between optical signals and electrical signals. For example, when the Ethernet communication interface 3121 receives an optical signal, the optical signal is converted into an electrical signal by the first optoelectronic module 312.
  • the custom protocol transceiver submodule 32 includes a driving module 321 and a plurality of second optoelectronic modules 322 connected to the driving module 321, the custom protocol conversion submodule 242 is connected to the driving module 321 through a second sub-interface 222, and a second optoelectronic module 322 is provided in the second optoelectronic module 322, wherein the driving module 321 is configured to perform signal format conversion on the custom protocol data received and sent by the second optoelectronic module 3221.
  • the driving module 321 converts the signal format of the custom protocol data sent by the second optoelectronic module 3221 from an analog signal to a digital signal, and sends it to the custom protocol conversion submodule 242.
  • the signal format of the custom protocol data sent by the custom protocol conversion submodule 242 is converted from a digital signal to an analog signal, and sent to the second optoelectronic module 322.
  • the second optoelectronic module 322 is configured to complete the mutual conversion between optical signals and electrical signals. For example, when the second optoelectronic module 3221 receives an optical signal, the optical signal is converted into an electrical signal by the second optoelectronic module 322.
  • Figure 11 is another structural schematic diagram of a conversion device according to an embodiment of the present application
  • Figure 12 is another structural schematic diagram of a conversion device according to an embodiment of the present application.
  • the CAN protocol transceiver module 1 includes multiple CAN protocol transceivers 11, and each of the multiple CAN protocol transceivers 11 is redundant with each other; the CAN protocol transceiver 11 is provided with a CAN communication interface 13, and the CAN communication interface 13 is configured to transmit the first data.
  • the CAN protocol transceiver module 1 also includes an isolation module 12 connected to multiple CAN protocol transceivers 11, and the isolation module 12 is also connected to the control unit 23; the isolation module 12 is configured to isolate the CAN protocol transceiver 11 from the control unit 23 to prevent the voltage in the CAN protocol transceiver 11 from damaging the control unit 23.
  • the CAN protocol transceiver 11 is configured to encapsulate the CAN protocol data and send it to the CAN communication interface 13 or the control unit 23.
  • the conversion device also includes a power supply module 4, which is respectively connected to the protocol conversion module 2 and the CAN protocol transceiver module 1, and the power supply module 4 is configured to supply power to the protocol conversion module 2 and the CAN protocol transceiver module 1.
  • a power supply module 4 is set.
  • the power supply module 4 can be a storage device such as a battery or a dry cell, or it can be directly connected to AC power. This application does not impose any restrictions here.
  • the power supply module 4 includes a redundant power supply sub-module, and an isolated power supply 42 and a power conversion module 43 respectively connected to the redundant power supply sub-module, the redundant power supply sub-module is connected to the protocol conversion module 2, and the isolated power supply 42 is also connected to the CAN protocol conversion module 2, wherein the redundant power supply sub-module 41 also includes multiple power input interfaces, and each of the multiple power input interfaces is redundant with each other.
  • an isolated power supply 42 is set between the redundant power supply submodule and the CAN protocol transceiver 11 to protect the CAN protocol transceiver 11 and provide the isolated power supply 42 for the CAN protocol transceiver 11.
  • the power conversion module 43 is configured to provide the power required for operation to the protocol conversion module 2, the drive module 321, the port physical layer 311, the first optoelectronic module 312, and the second optoelectronic module 322.
  • the power input interface is configured to receive input of an external power supply, and the multiple power input interfaces are mutually redundant. When one of the power input interfaces fails, it automatically switches to other power input interfaces for power input.
  • the conversion device in the present application can realize multiple working modes.
  • the conversion modes of the conversion device in the present application are described below:
  • One way, for example, is to convert CAN protocol data into IEC 60044-8 protocol:
  • the CAN protocol communication interface receives CAN protocol data, and multiple CAN protocol transceivers 11 are redundant. When any one of them fails, it will switch to another one, and transmit it to the control unit 23, the programmable logic gate array 24, the custom protocol conversion submodule 242, and the drive module 321 in sequence. Finally, multiple second photoelectric modules 3221 are mutually redundant, and when any one of them fails, it will automatically switch to another output.
  • the first working mode in the transmission process can be set to: transparent transmission mode or mapping mode according to the configuration file; the second working mode is set to: immediate transmission, change transmission or cache transmission, etc.; the CAN protocol communication interface supports baud rate setting, message filtering, numerical linear change and other functions through the configuration file.
  • One way, for example, is to convert CAN protocol data to IEC 60044-8 protocol data:
  • the CAN protocol communication interface is set to include a first CAN protocol communication interface and a second CAN protocol communication interface; the custom protocol data interface includes a first custom protocol data interface and a second custom protocol data interface; wherein the first CAN protocol communication interface corresponds to the first custom protocol data interface, and the second CAN protocol communication interface corresponds to the second custom protocol data interface, that is, the transmission paths are independent of each other.
  • the transmission process is: the first CAN protocol communication interface receives CAN protocol data, and finally outputs IEC 60044-8 protocol data through the first custom protocol data interface; the second CAN protocol communication interface receives CAN protocol data, and finally outputs IEC 60044-8 protocol data through the second custom protocol data interface.
  • One way for example, is to convert CAN protocol data to IEC 61850MMS protocol data as an example:
  • the multiple CAN protocol data communication interfaces are mutually redundant, and the CAN protocol data is input from the CAN protocol data communication interface and output from the Ethernet protocol data communication interface.
  • the control unit 23 uses a heterogeneous dual-core ARM processor, one ARM core runs a Linux operating system, and the other ARM core runs a real-time operating system.
  • the Linux kernel loads the ICD model file required for the MMS protocol to run, and transmits the configuration file to the real-time kernel through shared memory.
  • the real-time kernel parses the configuration file and sets the CAN interface (for example, baud rate, message filtering, and protocol mapping).
  • the real-time kernel receives the CAN message, parses the message according to the configuration file, converts it into variables in the MMS model file, and transmits it to the Linux kernel through shared memory.
  • Linux The MMS driver sends the data through the Ethernet protocol data communication interface; similarly, when the Ethernet protocol data communication interface receives data, it can be converted into CAN protocol data and sent out through the CAN protocol data communication interface.
  • the set custom protocol data interface includes a first custom protocol data interface, a second custom protocol data interface and a third custom protocol data interface.
  • the transmission process is: custom protocol data interface routing mode, when the protocol conversion module 2 receives the custom protocol data from the first custom protocol data interface or the second custom protocol data interface, it forwards it to the third custom protocol data interface; conversely, it is also possible to implement the third custom protocol data interface sending the received data to the first custom protocol data interface or the second custom protocol data interface, wherein the communication protocol can be selected from IEC 60044-8, serial port, etc.
  • the embodiment of the present application also provides a substation, including the conversion device in any of the above embodiments. It can be understood that the substation has the beneficial effects of the conversion device provided in the embodiment of the present application, and the specific description of the conversion device in the above embodiments can be referred to, and this embodiment will not be repeated here.

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Abstract

本申请公开了一种转换装置，包括：CAN协议收发接口；通信协议收发接口；协议转换模块，所述协议转换模块上设置有第一接口和第二接口，所述第一接口与所述CAN协议收发接口连接，所述第二接口与所述通信协议收发接口连接；所述协议转换模块配置为将第一数据转换为第二数据，或者，配置为将所述第二数据转换为所述第一数据，其中，所述第一数据以CAN协议进行传输，所述第二数据以通信协议进行传输。在本申请实施例中可以实现CAN协议数据与通信协议数据之间的相互转化，提高通信效率。

Description

转换装置及变电站
相关申请的交叉引用
本申请要求享有于2023年07月03日提交的名称为“转换装置及变电站”的中国专利申请202321723554.5的优先权，该申请的全部内容通过引用并入本文中。
技术领域
本申请涉及光电通信技术领域，特别是涉及一种转换装置及变电站。
背景技术
变电站是建立在通信规范基础上，能够实现变电站内智能电气设备间信息共享和互操作的现代化变电站。其中，变电站包括变电站智能装置和储能系统。
变电站智能装置(例如：光CT、光PT、控制保护装置等)通常使用通信协议进行通讯，但是储能系统通常使用控制器局域网络协议(CAN，Controller Area Network)进行通讯，不支持通信协议通讯，导致储能系统无法与变电站智能装置直接进行通信。现有市面上产品一般是光纤转换成光纤以太网或光纤串口，需要两个装置配对使用实现CAN桥接，以提高CAN通讯的传输距离和抗干扰能力。但是，不能实现CAN协议数据与通信协议数据之间的相互转化，通信效率较低。
发明内容
本申请提供一种转换装置及变电站，其能实现CAN协议数据与标准协议数据之间的相互转化，提高通信效率。
第一方面，本申请提供一种转换装置，包括：
CAN协议收发接口；
通信协议收发接口；
协议转换模块，所述协议转换模块上设置有第一接口和第二接口，所述第一接口与所述CAN协议收发接口连接，所述第二接口与所述通信协议收发接口连接；
所述协议转换模块配置为将第一数据转换为第二数据，或者，配置为将所述第二数据转换为所述第一数据，其中，所述第一数据以CAN协议进行传输，所述第二数据以通信协议进行传输。
本申请实施例的技术方案中，通过CAN协议收发接口和通信协议收发接口，将采用CAN协议传输的第一数据和采用通信协议传输的第二数据发送至协议转换模块进行协议数据之间的转换，实现CAN协议数据与通信协议数据之间的相互转化，从而提高智能变电站中的储能系统和变电站智能装置之间的通信效率。
在第一方面一种可能的实施方式中，所述协议转换模块包括控制单元；或者
所述协议转换模块包括相互连接的控制单元和可编程逻辑门阵列。
通过对协议转换模块的灵活设置，可以满足CAN协议与不同类型的通信协议之间的转换，装置通用性较强。
所述控制单元中存储有配置文件，所述控制单元通过所述配置文件将所述第一数据转换为所述第二数据，或者，将所述第二数据转换为所述第一数据。
通过控制单元中的配置文件，可以提高转换装置对协议转换的通用性
在第一方面一种可能的实施方式中，在所述协议转换模块包括所述可编程逻辑门阵列的情况下，所述第二接口包括多个第一子接口和多个第二子接口；
所述第一接口设置于所述控制单元，所述第一子接口和所述第二子接口设置于所述可编程逻辑门阵列；或者
所述第一接口和所述第二子接口设置于所述控制单元，所述第一子接口设置于所述可编程逻辑门阵列。
在第一方面一种可能的实施方式中，所述第一子接口为以太网协议数据收发接口，配置为收发以太网协议数据；所述第二子接口为自定义协议数据收发接口，配置为收发自定义协议数据。
通过上述的接口设置方式，可以结合实际协议转换需求，灵活设置第二子接口的方式，降低设备制作成本。
在第一方面一种可能的实施方式中，所述协议转换模块还包括分别与所述通信协议收发接口连接的以太网数据链路层驱动和自定义协议转换子模块。
通过设置以太网数据链路层驱动和自定义协议转换子模块，能够对第一数据和第二数据中的有效数据进行提取或者封装，提高了转换效率。
在第一方面一种可能的实施方式中，所述以太网数据链路层驱动设置于所述可编程逻辑门阵列，所述自定义协议转换子模块设置于所述可编程逻辑门阵列或者所述控制单元，其中，所述第一子接口设置于所述以太网数据链路层驱动，所述第二子接口设置于所述自定义协议转换子模块；
所述以太网数据链路层驱动配置为传输以太网协议数据；
所述自定义协议转换子模块配置为传输自定义协议数据。
通过设置以太网数据链路层驱动和自定义协议转换子模块，能够对第一数据和第二数据中的有效数据进行提取或者封装，提高了转换效率。
在第一方面一种可能的实施方式中，所述转换装置还包括CAN协议收发模块和通信协议收发模块，所述CAN协议收发模块通过所述CAN协议收发接口与所述协议转换模块连接，所述通信协议收发模块通过所述通信协议收发接口与所述协议转换模块连接。
在第一方面一种可能的实施方式中，所述通信协议收发模块包括自定义协议收发子模块和多个以太网协议收发子模块，所述自定义协议收发子模块与所述自定义协议转换子模块连接，所述多个以太网协议收发子模块均与所述以太网数据链路层驱动连接。
通过设置自定义协议收发子模块和多个以太网协议收发子模块，可以满足CAN协议与不同类型的通信协议之间的转换，装置通用性较强
在第一方面一种可能的实施方式中，所述以太网协议收发子模块包括相互连接的端口物理层和第一光电模块，所述以太网数据链路层驱动通过所述第一子接口与所述端口物理层连接，所述第一光电模块中设置有以太网通讯接口，其中，所述端口物理层配置为对所述以太网通讯接口收发的以太网协议数据进行信号格式转换。。
通过设置端口物理层、第一光电模块以及以太网通讯接口，能够实现以太网数据的准确接收和发送，提高转换装置工作效率。
在第一方面一种可能的实施方式中，所述自定义协议收发子模块包括驱动模块以及与所述驱动模块连接的多个第二光电模块，所述自定义协议转换子模块通过第二子接口与所述驱动模块连接，所述第二光电模块中设置有自定义协议通讯接口，其中，所述驱动模块配置为对所述自定义协议通讯接口收发的自定义协议数据进行信号格式转换。
通过设置驱动模块、第二光电模块以及自定义协议通讯接口，能够实现自定义协议数据的准确接收和发送，提高转换装置工作效率
在第一方面一种可能的实施方式中，所述CAN协议收发模块包括多个CAN协议收发器，所述多个CAN协议收发器中的各个协议收发器互为冗余；所述CAN协议收发器设置有CAN通讯接口，所述CAN通讯接口配置为传输所述第一数据。
在第一方面一种可能的实施方式中，所述CAN协议收发模块还包括与所述多个CAN协议收发器连接的隔离模块，所述隔离模块还与所述控制单元连接；所述隔离模块配置为隔离所述CAN协议收发器与所述控制单元，防止所述CAN协议收发器中的电压损坏所述控制单元。
通过设置多个CAN协议收发器，能够在其中一个CAN协议收发器发生故障的情况下，自动切换为其他路的CAN协议收发器进行第一数据的传输，提高转换装置的 容错率。
在第一方面一种可能的实施方式中，所述转换装置还包括供电模块，所述供电模块分别与所述协议转换模块和所述CAN协议收发模块连接，所述供电模块配置为向所述协议转换模块和所述CAN协议收发模块供电。
通过设置供电模块，保证转换装置的续航能力。
在第一方面一种可能的实施方式中，所述供电模块包括冗余供电子模块，以及分别与所述冗余供电子模块连接的隔离电源和电源转换模块，所述冗余供电子模块与所述协议转换模块连接，所述隔离电源还与所述CAN协议收发器连接，其中，所述冗余供电子模块还包括多个电源输入接口，多个电源输入接口中的各个电源输入接口互为冗余。
通过设置冗余供电子模块、隔离电源以及电源转换模块，保证转换装置的电能供应，同时通过冗余设计，在任意一路输入电源接口有效时，都可实现供电，增加了电源可靠性。
第二方面，本申请提供一种变电站，所述变电站包括如第一方面任一项实施例所述的转换装置。
上述说明仅是本申请技术方案的概述，为了能够更清楚了解本申请的技术手段，而可依照说明书的内容予以实施，并且为了让本申请的上述和其它目的、特征和优点能够更明显易懂，以下特举本申请的具体实施方式。
附图说明
下面将参考附图来描述本申请示例性实施例的特征、优点和技术效果。
图1为本申请一实施例的一种转换装置的结构示意图；
图2为本申请一实施例的一种协议转换模块中包含控制单元的结构示意图；
图3为本申请一实施例的一种协议转换模块包含控制单元和可编程逻辑门阵列的另一结构示意图；
图4为本申请一实施例的一种协议转换模块包括第二接口的结构示意图；
图5为本申请一实施例的一种协议转换模块包括第二接口的另一结构示意图；
图6为本申请一实施例的一种协议转换模块包含子模块的结构示意图；
图7为本申请一实施例的一种协议转换模块包含子模块的另一结构示意图；
图8为本申请一实施例的一种协议转换模块与通信协议收发模块的连接结构示意图；
图9为本申请一实施例的一种转换装置的另一结构示意图；
图10为本申请一实施例的一种协议转换模块与通信协议收发模块的另一连接结构示意图；
图11为本申请一实施例的一种转换装置的另一结构示意图；
图12为本申请一实施例的一种转换装置的另一结构示意图。
在附图中，附图未必按照实际的比例绘制。
1：CAN协议收发模块；2：协议转换模块；3：通信协议收发模块；21：第一接口；22：第二接口；11：CAN协议收发器；12：隔离模块；13：CAN通讯接口；23：控制单元；24：可编程逻辑门阵列；241：以太网数据链路层驱动；242：自定义协议转换子模块；221：第一子接口；222：第二子接口；31：以太网协议收发子模块；32：自定义协议收发子模块；311：端口物理层；312：第一光电模块；3121：以太网通讯接口；321：驱动模块；322：第二光电模块；3221：自定义协议通讯接口；4：供电模块；41：冗余供电子模块；42：隔离电源；43：电源转换模块；14：CAN协议收发接口；33：通信协议收发接口。
具体实施方式
为使本申请实施例的目的、技术方案和优点更加清楚，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其它实施例，都属于本申请保护的范围。
除非另有定义，本申请所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同；本申请中在申请的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请；本申请的说明书和权利要求书及上述附图说明中的术语“包括”和“具有”以及它们的任何变形，意图在于覆盖不排他的包含。本申请的说明书和权利要求书或上述附图中的术语“第一”、“第二”等是用于区别不同对象，而不是用于描述特定顺序或主次关系。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“附接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是直接相连，也可以通过中间媒介间接相连， 可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
变电站智能装置(例如：光CT、光PT、控制保护装置等)通常使用IEC60044-8协议和光纤通信进行数据交互，以及使用IEC61850MMS、Goose、SV协议和光纤通讯进行不同装置之间的互联，但是储能系统通常使用CAN协议进行通讯，不支持IEC61850MMS、Goose、SV协议和光纤通讯，导致储能系统无法与变电站智能装置直接进行通信。现有市面上产品一般是光纤转换成光纤以太网或光纤串口，需要两个装置配对使用实现CAN桥接，提高CAN通讯的传输距离和抗干扰能力。但是，不能实现CAN协议数据与标准协议数据之间的相互转化，通信效率较低。
为了解决上述技术问题，本申请实施例提供了一种转换装置及变电站，以下将结合附图对本申请实施例提供的转换装置及变电站进行详细介绍。
下面首先介绍申请实施例提供的转换装置。
本申请实施例公开的转换装置可以可广泛用于各种工业控制、过程控制和交通控制等场合。
图1为本申请一实施例的一种转换装置的结构示意图。如图1所示，该转换装置包括CAN协议收发接口14、通信协议收发接口33和协议转换模块2。
具体的，协议转换模块2的型号可以为赛灵思ZYNQ 7010。协议转换模块2上设置有第一接口21和第二接口22，第一接口21与CAN协议收发接口14连接，第二接口22与通信协议收发接口33连接；第一接口21用于连接CAN协议收发接口14与协议转换模块2，同时在协议转换模块2和CAN协议收发接口14之间进行第一数据的传输。第二接口22用于连接通信协议收发接口33和协议转换模块2，同时在通信协议收发接口33和协议转换模块2之间进行第二数据的传输。
CAN协议收发接口14用于接收和发送第一数据，通信协议收发接口33用于接收和发送第二数据。
具体的，在转换装置需要将第一数据转换为第二数据的情况下，CAN协议收发接口14接收来自外部的待转换的第一数据，并发送至协议转换模块2，协议转换模块2将以CAN协议进行传输的第一数据转换为以通信协议进行传输的第二数据，最后通过通信协议收发接口33将第二数据输出。在转换装置需要将第二数据转化为第一数据的情况下，通信协议收发接口33接收来自外部的待转换的第二数据，并发送至协议转换 模块2，协议转换模块2将以通信协议进行传输的第二数据转换为以CAN协议进行传输的第一数据，最后通过CAN协议收发接口14将第一数据输出。
在本申请的实施例中，由于设置了CAN协议收发接口14、通信协议收发接口33和协议转换模块2，可以通过CAN协议收发接口14和通信协议收发接口33，将采用CAN协议传输的第一数据和采用通信协议传输的第二数据发送至协议转换模块2进行协议数据之间的转换，实现CAN协议数据与标准协议数据之间的相互转化，从而提高智能变电站中的储能系统和变电站智能装置之间的通信效率。
图2为本申请一实施例的一种协议转换模块中包含控制单元的结构示意图。图3为本申请一实施例的一种协议转换模块包含控制单元和可编程逻辑门阵列的另一结构示意图。
如图2和图3所示，在本申请的一实施例中，协议转换模块2包括控制单元23；或者协议转换模块2包括相互连接的控制单元23和可编程逻辑门阵列24。
控制单元23可以采用单核ARM处理器或异构双核ARM处理器。
可以理解的是，协议转换模块2包括两种设置方式，其中一种可只包含有控制单元23，另一种为包含控制单元23和可编程逻辑门阵列24。其中，在协议转换模块2包括控制单元23的情况下，转换装置可以实现CAN协议与除以太网协议之外的其余通信协议之间的转换，其余通信协议例如：IEC61850MMS、IEC 60870-5-101/10、Goose和SV协议等。在协议转换模块2包括控制单元23和可编程逻辑门阵列24的情况下，转换装置可以实现CAN协议与包括以太网协议在内的所有通信协议之间的转换，所有通信协议例如：IEC61850协议和IEC60044-8协议等以太网协议，以及IEC61850MMS、IEC 60870-5-101/10、Goose和SV协议等。在协议转换模块2包括控制单元23和可编程逻辑门阵列24的情况下，转换装置还可以实现不同的通信协议之间的转换，例如：IEC61850协议、IEC60044-8协议、IEC61850MMS、IEC 60870-5-101/10、Goose和SV协议之间的相互转换。
具体的，在协议转换模块2包括控制单元23和可编程逻辑门阵列24的情况下，控制单元23和可编程逻辑门阵列24之间可以通过内部高速总线进行通信。控制单元23用于在检测到通过CAN协议收发接口14输入的第一数据中的以CAN协议传输的第一有效数据后，将该第一有效数据转换为以通信协议传输的第二有效数据。可编程逻辑门阵列24用于将该第二有效数据重新进行封装后通过通信协议收发接口33输 出。
或者可编程逻辑门阵列24用于在检测到通过通信协议收发接口33输入的第二数据后，提取出第二数据中的第二有效数据。控制单元23用于将该第二有效数据转换为以CAN协议传输的第一有效数据。
在协议转换模块2只包括控制单元23的情况下，控制单元23用于在检测到通过CAN协议收发接口14输入的第一数据中的以CAN协议传输的第一有效数据后，将该第一有效数据转换为以通信协议传输的第二有效数据，并将该第二有效数据重新进行封装后通过通信协议收发接口33输出。
或者用于在检测到通过通信协议收发接口33输入的第二数据后，提取出第二数据中的第二有效数据，并将该第二有效数据转换为以CAN协议传输的第一有效数据。
在本实施例中，通过对协议转换模块2的灵活设置，可以满足CAN协议与不同类型的通信协议之间的转换，装置通用性较强。
如图4和图5所示，图4为本申请一实施例的一种协议转换模块包括第二接口的结构示意图；图5为本申请一实施例的一种协议转换模块包括第二接口的另一结构示意图；
在本申请的一实施例中，控制单元23中存储有配置文件，所述控制单元23通过所述配置文件将第一数据转换为第二数据，或者，将第二数据转换为第一数据。配置文件存储在控制单元23中，在进行协议转换时，需调用控制单元23中的存储器以完成各种协议之间的转换，另外，配置文件还用于配置各种协议之间的转换方式，例如：CAN协议与IEC61850协议、CAN协议与IEC60044-8协议等之间的转换方式。可以在更换协议转换类型时，对配置文件进行同步更新，以完成各种协议之间的转换，可以提高转换装置对协议转换的通用性。
在本申请的一实施例中，在协议转换模块2包括可编程逻辑门阵列24的情况下，第二接口22包括第一子接口221和第二子接口222；第一接口21设置于控制单元23，第一子接口221和第二子接口222设置于可编程逻辑门阵列24；或者第一接口21和第二子接口222设置于控制单元23，第一子接口221设置于可编程逻辑门阵列24。
在本实施例中，第一接口21用于连接控制单元23和CAN协议收发接口14，并在控制单元23和CAN协议收发接口14之间传输第一数据。第二接口22中的第一子接 口221为以太网协议数据收发接口，配置为收发以太网协议数据。第二子接口222为自定义协议数据收发接口，配置为收发自定义协议数据。
可以理解的是，第二子接口222有两种设置方式，一种是将第二子接口222设置在控制单元23中，另一种是将第二子接口222设置在可编程逻辑门阵列24中。以太网协议数据包括IEC61850协议和IEC60044-8协议，自定义协议包括通信领域中的标准协议和技术人员自行开发的协议，其中标准协议包括例如IEC61850协议、IEC60044-8协议、IEC61850MMS、IEC 60870-5-101/10、Goose和SV协议等协议。
在本实施例中，通过上述的接口设置方式，可以结合实际协议转换需求，灵活设置第二子接口222的方式，降低设备制作成本。
如图6和图7所示，图6为本申请一实施例的一种协议转换模块包含子模块的结构示意图；图7为本申请一实施例的一种协议转换模块包含子模块的另一结构示意图；
在本申请的一实施例中，协议转换模块2还包括分别与所述通信协议收发模块3连接的以太网数据链路层驱动241和自定义协议转换子模块242。其中，以太网数据链路层驱动241配置为提取来自通信协议收发模块3的以太网协议数据中的以太网有效数据，或者，对来自控制单元23的以太网有效数据进行重新封装成待转换的协议格式并输出至通信协议收发接口33。例如，在接收到来自控制单元23的以太网有效数据时，需将该数据转换为IEC61850协议数据，则以太网数据链路层驱动241将该以太网有效数据封装为IEC61850协议格式的数据，并输出至通信协议收发接口33。
自定义协议转换子模块242配置为提取来自通信协议收发接口33的自定义协议数据中的自定义有效数据，或者，对来自控制单元23的自定义有效数据进行重新封装成待转换的协议格式并输出至通信协议收发接口33。例如，在接收到来自控制单元23的自定义有效数据时，需将该数据转换为IEC61850MMS协议数据，则自定义协议转换子模块242将该自定义有效数据封装为IEC61850MMS协议格式的数据，并输出至通信协议收发接口33。
在本实施中，通过设置以太网数据链路层驱动241和自定义协议转换子模块242，能够对第一数据和第二数据中的有效数据进行提取或者封装，提高了转换效率。
在本申请的一实施例中，以太网数据链路层驱动241设置于可编程逻辑门阵列24，自定义协议转换子模块242设置于可编程逻辑门阵列24或者控制单元23，其中， 第一子接口221设置于以太网数据链路层驱动241，第二子接口222设置于自定义协议转换子模块242。
在本实施例中，以太网数据链路层驱动241配置为传输以太网协议数据；自定义协议转换子模块242配置为传输自定义协议数据。可以理解的是，自定义协议转换子模块242可以设置于可编程逻辑门阵列24中，也可以设置在控制单元23中。
第一子接口221用于连接以太网数据链路层驱动241与通信协议收发接口33，完成两者之间以太网数据的收发。第二子接口222用于连接自定义协议转换子模块242与通信协议收发接口33，完成两者之间的自定义协议数据的收发。
如图8所示，图8为本申请一实施例的一种协议转换模块与通信协议收发模块的连接结构示意图；
在本申请的一实施例中，转换装置还包括CAN协议收发模块1和通信协议收发模块3，CAN协议收发模块1通过CAN协议收发接口14与协议转换模块2连接，通信协议收发模块3通过通信协议收发接口33与协议转换模块2连接。
在本实施例中，通信协议收发接口33包括以太网协议收发接口以及自定义协议收发接口，其中，以太网协议收发接口与第一子接口221连接，用于收发以太网协议数据，通信协议收发接口与第二子接口222连接，用于收发自定义协议数据。
如图9和图10所示，图9为本申请一实施例的一种转换装置的另一结构示意图；图10为本申请一实施例的一种协议转换模块与通信协议收发模块的另一连接结构示意图；
在本申请的一实施例中，通信协议收发模块3包括自定义协议收发子模块32和多个以太网协议收发子模块31，自定义协议收发子模块32与自定义协议转换子模块242连接，多个以太网协议收发子模块31均与以太网数据链路层驱动连接241。
在本实施例中，自定义协议收发子模块32配置为接收协议转换模块发送的自定义协议数据，并将自定义协议数据转换为光信号输出；以太网协议收发子模块31配置为将以太网协议数据转换为光信号输出。通过自定义协议收发子模块32和以太网协议收发子模块31能够实现自定义协议数据和以太网协议数据的传输。
在本申请的一实施例中，以太网协议收发子模块31包括相互连接的端口物理层311和第一光电模块312，以太网数据链路层驱动241通过第一子接口221与端口物理层311连接，第一光电模块312中设置有以太网通讯接口3121，其中，端口物理层 311配置为对以太网通讯接口3121收发的以太网协议数据进行信号格式转换。
在本实施例中，端口物理层311为是一个PHY芯片，该PHY芯片通过物理层接口、芯片和外围电路组成，端口物理层311将以太网通讯接口3121发送的以太网协议数据的信号格式从模拟信号转换为数字信号，并发送至以太网数据链路层驱动241。同时将以太网数据链路层驱动241发送的以太网协议数据的信号格式从数字信号转换为模拟信号，并发送至第一光电模块312。第一光电模块312配置为完成光信号与电信号之间的相互转换。例如，在以太网通讯接口3121接收到光信号时，通过第一光电模块312将光信号转换为电信号。
通过设置端口物理层311、第一光电模块312以及以太网通讯接口3121，能够实现以太网数据的准确接收和发送，提高转换装置工作效率，能够实现CAN协议数据与以太网协议数据之间的相互转换。
在本申请的一实施例中，自定义协议收发子模块32包括驱动模块321以及与驱动模块321连接的多个第二光电模块322，自定义协议转换子模块242通过第二子接口222与驱动模块321连接，第二光电模块322中设置有第二光电模块3221，其中，驱动模块321配置为对第二光电模块3221收发的自定义协议数据进行信号格式转换。
在本实施例中，驱动模块321将第二光电模块3221发送的自定义协议数据的信号格式从模拟信号转换为数字信号，并发送至自定义协议转换子模块242。同时将自定义协议转换子模块242发送的自定义协议数据的信号格式从数字信号转换为模拟信号，并发送至第二光电模块322。第二光电模块322配置为完成光信号与电信号之间的相互转换。例如，在第二光电模块3221接收到光信号时，通过第二光电模块322将光信号转换为电信号。
通过设置驱动模块321、第二光电模块322以及第二光电模块3221，能够实现自定义协议数据的准确接收和发送，提高转换装置工作效率，能够实现CAN协议数据与自定义协议数据之间的相互转换。
如图11和图12所示，图11为本申请一实施例的一种转换装置的另一结构示意图；图12为本申请一实施例的一种转换装置的另一结构示意图。
在本申请的一实施例中，CAN协议收发模块1包括多个CAN协议收发器11，多个CAN协议收发器11中的各个协议收发器互为冗余；CAN协议收发器11设置有CAN通讯接口13，CAN通讯接口13配置为传输第一数据。
CAN协议收发模块1还包括与多个CAN协议收发器11连接的隔离模块12，隔离模块12还与控制单元23连接；隔离模块12配置为隔离CAN协议收发器11与控制单元23，防止CAN协议收发器11中的电压损坏控制单元23。
在本实施例中，CAN协议收发器11配置为对CAN协议数据进行封装，并发送至CAN通讯接口13或者控制单元23。CAN协议收发器11具有多个，具体可以为2个、3个或者4个，本申请在此不作限制。由于具有多个CAN协议收发器11，使得各个CAN协议收发器11之间能够互为冗余，即能够在其中一个CAN协议收发器11发生故障的情况下，自动切换为其他路的CAN协议收发器11进行第一数据的传输，提高转换装置的容错率。
在本申请的一实施例中，转换装置还包括供电模块4，供电模块4分别与协议转换模块2和CAN协议收发模块1连接，供电模块4配置为向协议转换模块2和CAN协议收发模块1供电。
在本实施例中，为保证转换装置的续航能力，需要为协议转换模块2和CAN协议收发模块1进行供电，为此，设置供电模块4，供电模块4可以是蓄电池、干电池等储能设备，也可以直接连接交流电，本申请在此不做限制。
在本申请的一实施例中，供电模块4包括冗余供电子模块，以及分别与冗余供电子模块连接的隔离电源42和电源转换模块43，冗余供电子模块与协议转换模块2连接，隔离电源42还与CAN协议转换模块2连接，其中，冗余供电子模块41还包括多个电源输入接口，多个电源输入接口中的各个电源输入接口互为冗余。
在本实施例中，为防止CAN协议收发器11由于外部过压、浪涌等原因被损坏，在冗余供电子模块与CAN协议收发器11之间设置隔离电源42，对CAN协议收发器11进行保护同时为CAN协议收发器11提供隔离电源42。电源转换模块43配置为向协议转换模块2、驱动模块321、端口物理层311、第一光电模块312和第二光电模块322等提供工作所需的电源。电源输入接口配置为接收外部电源的输入，同时多个电源输入接口互为冗余，在其中一个电源输入接口发生故障时，自动切换为其他的电源输入接口进行电源输入。
通过设置冗余供电子模块、隔离电源42以及电源转换模块43，保证转换装置的电能供应，同时通过冗余设计，在任意一路输入电源接口有效时，都可实现供电，增加了电源可靠性。
本申请中的转换装置可以实现多种工作模式，以下对本申请中的转换装置的转换模式进行说明：
一种方式，示例性地，以对CAN协议数据转换为IEC 60044-8协议为例进行说明：
CAN协议通讯接口接收CAN协议数据，多个CAN协议收发器11冗余，任意一路发生故障时会切换至另外一路，依次传输至控制单元23、可编程逻辑门阵列24、自定义协议转换子模块242、驱动模块321，最后通过多个第二光电模块3221相互冗余，任意一路发生故障时自动切换至另外一路输出。其中，传输过程中的第一工作模式可以设置为：透传方式或者根据配置文件映射方式；第二工作模式设置为：立即发送、变化发送或缓存发送等方式；CAN协议通讯接口通过配置文件支持波特率设置、报文过滤、数值线性变化等功能。
一种方式，示例性地，以CAN协议数据转IEC 60044-8协议数据为例进行说明：
设定CAN协议通讯接口包括第一CAN协议通讯接口和第二CAN协议通讯接口；自定义协议数据接口包括第一自定义协议数据接口和第二自定义协议数据接口；其中，第一CAN协议通讯接口和第一自定义协议数据接口相对应，第二CAN协议通讯接口和第二自定义协议数据接口相对应，即传输路径相互独立。
传输过程为：第一CAN协议通讯接口接收CAN协议数据，最后通过第一自定义协议数据接口输出IEC 60044-8协议数据；第二CAN协议通讯接口接收CAN协议数据，最后通过第二自定义协议数据接口输出IEC 60044-8协议数据。
一种方式，示例性地，以CAN协议数据转IEC 61850MMS协议数据为例进行说明：
多个CAN协议数据通讯接口相互冗余，CAN协议数据从CAN协议数据通讯接口输入，从以太网协议数据通讯接口输出。控制单元23采用异构双核ARM处理器，1个ARM核运行Linux操作系统，另外一个ARM核心运行实时操作系统。
首先，Linux核加载MMS协议运行所需的ICD模型文件，并将配置文件传通过共享内存方式传输给实时核，实时解析配置文件，对CAN接口进行设置(例如：波特率、报文过滤、协议映射)。实时核收到CAN报文，根据配置文件对报文进行解析，转换成MMS模型文件中的变量，通过共享内存方式传输给Linux核，Linux收到后通过 MMS驱动将数据通过以太网协议数据通讯接口发送出去；同理以太网协议数据通讯接口收到数据时，可转换成CAN协议数据通过CAN协议数据通讯接口发送出去。
一种方式，示例性地：
设定自定义协议数据接口包括第一自定义协议数据接口、第二自定义协议数据接口和第三自定义协议数据接口。
传输过程为：自定义协议数据接口路由模式，协议转换模块2收到第一自定义协议数据接口或者第二自定义协议数据接口的自定义协议数据时，转发给第三自定义协议数据接口；相反，也可实现第三自定义协议数据接口收到数据后，发送给第一自定义协议数据接口或第二自定义协议数据接口，其中，通讯协议可选IEC 60044-8、串口等。
本申请实施例还提供一种变电站，包括以上任一实施例中的转换装置。可以理解的是，变电站具有本申请实施例提供的转换装置的有益效果，具体可以参考上述各实施例对于转换装置的具体说明，本实施例在此不再赘述。
虽然已经参考优选实施例对本申请进行了描述，但在不脱离本申请的范围的情况下，可以对其进行各种改进并且可以用等效物替换其中的部件，尤其是，只要不存在结构冲突，各个实施例中所提到的各项技术特征均可以任意方式组合起来。本申请并不局限于文中公开的特定实施例，而是包括落入权利要求的范围内的所有技术方案。

Claims (16)

  1. 一种转换装置，包括：
    CAN协议收发接口；
    通信协议收发接口；
    协议转换模块，所述协议转换模块上设置有第一接口和第二接口，所述第一接口与所述CAN协议收发接口连接，所述第二接口与所述通信协议收发接口连接；
    所述协议转换模块配置为将第一数据转换为第二数据，或者，配置为将所述第二数据转换为所述第一数据，其中，所述第一数据以CAN协议进行传输，所述第二数据以通信协议进行传输。
  2. 如权利要求1所述的转换装置，其中，所述协议转换模块包括控制单元；或者
    所述协议转换模块包括相互连接的控制单元和可编程逻辑门阵列。
  3. 如权利要求2所述的转换装置，其中，所述控制单元中存储有配置文件，所述控制单元通过所述配置文件将所述第一数据转换为所述第二数据，或者，将所述第二数据转换为所述第一数据。
  4. 如权利要求2所述的转换装置，其中，在所述协议转换模块包括所述可编程逻辑门阵列的情况下，所述第二接口包括多个第一子接口和多个第二子接口；
    所述第一接口设置于所述控制单元，所述第一子接口和所述第二子接口设置于所述可编程逻辑门阵列；或者
    所述第一接口和所述第二子接口设置于所述控制单元，所述第一子接口设置于所述可编程逻辑门阵列。
  5. 如权利要求4所述的转换装置，其中，所述第一子接口为以太网协议数据收发接口，配置为收发以太网协议数据；所述第二子接口为自定义协议数据收发接口，配置为收发自定义协议数据。
  6. 如权利要求4所述的转换装置，其中，所述协议转换模块还包括分别与所述通信协议收发接口连接的以太网数据链路层驱动和自定义协议转换子模块。
  7. 如权利要求6所述的转换装置，其中，所述以太网数据链路层驱动设置于所述可编程逻辑门阵列，所述自定义协议转换子模块设置于所述可编程逻辑门阵列或者所述控制单元，所述第一子接口设置于所述以太网数据链路层驱动，所述第二子接口设 置于所述自定义协议转换子模块；
    所述以太网数据链路层驱动配置为传输以太网协议数据；
    所述自定义协议转换子模块配置为传输自定义协议数据。
  8. 如权利要求1-7中任一项所述的转换装置，还包括CAN协议收发模块和通信协议收发模块，所述CAN协议收发模块通过所述CAN协议收发接口与所述协议转换模块连接，所述通信协议收发模块通过所述通信协议收发接口与所述协议转换模块连接。
  9. 如权利要求6所述的转换装置，其中，所述通信协议收发模块包括自定义协议收发子模块和多个以太网协议收发子模块，所述自定义协议收发子模块与所述自定义协议转换子模块连接，所述多个以太网协议收发子模块与所述以太网数据链路层驱动连接。
  10. 如权利要求9所述的转换装置，其中，所述以太网协议收发子模块包括相互连接的端口物理层和第一光电模块，所述以太网数据链路层驱动通过所述第一子接口与所述端口物理层连接，所述第一光电模块中设置有以太网通讯接口，所述端口物理层配置为对所述以太网通讯接口收发的以太网协议数据进行信号格式转换。
  11. 如权利要求9所述的转换装置，其中，所述自定义协议收发子模块包括驱动模块以及与所述驱动模块连接的多个第二光电模块，所述自定义协议转换子模块通过第二子接口与所述驱动模块连接，所述第二光电模块中设置有自定义协议通讯接口，所述驱动模块配置为对所述自定义协议通讯接口收发的自定义协议数据进行信号格式转换。
  12. 如权利要求9所述的转换装置，其中，所述CAN协议收发模块包括多个CAN协议收发器，所述多个CAN协议收发器中的各个协议收发器互为冗余；所述CAN协议收发器设置有CAN通讯接口，所述CAN通讯接口配置为传输所述第一数据。
  13. 如权利要求12所述的转换装置，其中，所述CAN协议收发模块还包括与所述多个CAN协议收发器连接的隔离模块，所述隔离模块还与所述控制单元连接；所述隔离模块配置为隔离所述CAN协议收发器与所述控制单元。
  14. 如权利要求1-13中任一项所述的转换装置，还包括供电模块，所述供电模块分别与所述协议转换模块和所述CAN协议收发模块连接，所述供电模块配置为向所述协议转换模块和所述CAN协议收发模块供电。
  15. 如权利要求14所述的转换装置，其中，所述供电模块包括冗余供电子模块，以及分别与所述冗余供电子模块连接的隔离电源和电源转换模块，所述冗余供电子模块与所述协议转换模块连接，所述隔离电源还与所述CAN协议收发器连接，所述冗余供电子模块还包括多个电源输入接口，多个电源输入接口中的各个电源输入接口互为冗余。
  16. 一种变电站，所述变电站包括如权利要求1至15中任一项所述的转换装置。
PCT/CN2023/132277 2023-07-03 2023-11-17 转换装置及变电站 Ceased WO2025007475A1 (zh)

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