US-20260129107-A1 - CONVERSION APPARATUS AND TRANSFORMER SUBSTATION

US20260129107A1US 20260129107 A1US20260129107 A1US 20260129107A1US-20260129107-A1

Abstract

Disclosed in the present application is a conversion apparatus, comprising: a CAN protocol transceiver interface; a communication protocol transceiver interface; and a protocol conversion module provided with a first interface and a second interface, wherein 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 in the CAN protocol, and the second data is transmitted in the communication protocol.

Inventors

Chongxi Wang
Zhengwu WEN
Xu Zhang
Zhiwei Yan
Xiaoqiang Zhang

Assignees

CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Dates

Publication Date: 20260507
Application Date: 20260102
Priority Date: 20230703

Claims (16)

1 . A conversion apparatus, comprising: a CAN protocol transceiver interface; a communication protocol transceiver interface; and a protocol conversion module provided with a first interface and a second interface, the first interface being connected to the CAN protocol transceiver interface, and the second interface being connected to the communication protocol transceiver interface; the protocol conversion module being configured to convert first data into second data, or to convert the second data into the first data, wherein the first data is transmitted in a CAN protocol and the second data is transmitted in a communication protocol.
2 . The conversion apparatus of claim 1 , wherein the protocol conversion module comprises a control unit; or the protocol conversion module comprises a control unit and a programmable logic gate array that are interconnected.
3 . The conversion apparatus of claim 2 , wherein a profile is stored in the control unit, and the control unit uses the profile to convert the first data into the second data, or to convert the second data into the first data.
4 . The conversion apparatus of claim 2 , wherein in the case where the protocol conversion module comprises the programmable logic gate array, the second interface comprises 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 provided in the control unit, and the first sub-interface is provided in the programmable logic gate array.
5 . The conversion apparatus of claim 4 , wherein the first sub-interface is an Ethernet protocol data transceiver interface configured to transmit and receive Ethernet protocol data; and the second sub-interface is a custom protocol data transceiver interface configured to transmit and receive custom protocol data.
6 . The conversion apparatus of claim 4 , wherein the protocol conversion module further comprises an Ethernet data link layer driver and a custom protocol conversion submodule respectively connected to the communication protocol transceiver interface.
7 . The conversion apparatus of claim 6 , wherein the Ethernet data link layer driver is provided at the programmable logic gate array, the custom protocol conversion submodule is provided at the programmable logic gate array or the control unit, the first sub-interface is provided at the Ethernet data link layer driver, and the second sub-interface is provided at the custom protocol conversion submodule; the Ethernet data link layer driver is configured to transmit Ethernet protocol data; and the custom protocol conversion submodule is configured to transmit custom protocol data.
8 . The conversion apparatus of claim 1 , further comprising a CAN protocol transceiver module and a communication protocol transceiver module, the CAN protocol transceiver module being connected to the protocol conversion module through the CAN protocol transceiver interface, and the communication protocol transceiver module being connected to the protocol conversion module through the communication protocol transceiver interface.
9 . The conversion apparatus of claim 6 , wherein the communication protocol transceiver module comprises a custom protocol transceiver submodule and a plurality of Ethernet protocol transceiver submodules, the custom protocol transceiver submodule is connected to the custom protocol conversion submodule, and the plurality of Ethernet protocol transceiver submodules are all connected to the Ethernet data link layer driver.
10 . The conversion apparatus of claim 9 , wherein the Ethernet protocol transceiver submodule comprises a port physical layer and a first optoelectronic module that are interconnected, 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, and the port physical layer is configured for signal format conversion of the Ethernet protocol data transmitted and received by the Ethernet communication interface.
11 . The conversion apparatus of claim 9 , wherein the custom protocol transceiver submodule comprises 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 through the second sub-interface, the second optoelectronic module is provided with a custom protocol communication interface, and the driving module is configured for signal format conversion of the custom protocol data transmitted and received by the custom protocol communication interface.
12 . The conversion apparatus of claim 9 , wherein the CAN protocol transceiver module comprises a plurality of CAN protocol transceivers, each of the plurality of CAN protocol transceivers is redundant to another; and the CAN protocol transceiver is provided with a CAN communication interface configured to transmit the first data.
13 . The conversion apparatus of claim 12 , wherein the CAN protocol transceiver module further comprises an isolation module connected to the plurality of CAN protocol transceivers, the isolation module is further connected to the control unit; and the isolation module is configured to isolate the CAN protocol transceivers from the control unit.
14 . The conversion apparatus of claim 1 , further comprising a power supply module respectively connected to the protocol conversion module and the CAN protocol transceiver module and configured to supply power to the protocol conversion module and the CAN protocol transceiver module.
15 . The conversion apparatus of claim 14 , wherein the power supply module comprises a redundant power supply submodule and an isolated power source and a power conversion module respectively connected to the redundant power supply submodule, the redundant power supply submodule is connected to the protocol conversion module, the isolated power source is further connected to the CAN protocol transceiver, and the redundant power supply submodule further comprises a plurality of power input interfaces, each of the plurality of power input interfaces being redundant to another.
16 . A transformer substation comprising the conversion apparatus of claim 1 .

Description

CROSS-REFERENCE TO RELATED APPLICATIONS The present application is a bypass continuation of International Application PCT/CN2023/132277, filed Nov. 17, 2023, which claims priority to Chinese Patent Application No. 202321723554.5, filed on Jul. 3, 2023, and titled “CONVERSION APPARATUS AND TRANSFORMER SUBSTATION”, the disclosure of each is incorporated herein by reference in its entirety. TECHNICAL FIELD The present application relates to the technical field of optoelectronic communication, and in particular, to a conversion apparatus and a transformer substation. BACKGROUND A transformer substation is a modern transformer substation built based on communication standards, enabling information sharing and interoperability among intelligent electrical equipment within the transformer substation. Specifically, the transformer substations include transformer substation intelligent apparatuses and energy storage systems. The transformer substation intelligent apparatuses (such as optical CTs, optical PTs, control and protection apparatuses, etc.) typically use communication protocols for communication, whereas the energy storage systems typically use the Controller Area Network (CAN) protocol for communication, and do not support communication protocol communication, making it impossible for the energy storage systems to communicate directly with the transformer substation intelligent apparatuses. Current products on the market typically convert optical fibers into optical fiber Ethernet or optical fiber serial ports, requiring two apparatuses to be paired for CAN bridging to improve the transmission distance and anti-interference capability of CAN communication. However, they cannot realize mutual conversion between CAN protocol data and communication protocol data, resulting in low communication efficiency. SUMMARY OF THE DISCLOSURE The present application provides a conversion apparatus and a transformer substation that can realize the mutual conversion between CAN protocol data and standard protocol data, thereby improving the communication efficiency. In a first aspect, the present application provides a conversion apparatus, including: a CAN protocol transceiver interface;a communication protocol transceiver interface; anda protocol conversion module provided with a first interface and a second interface, the first interface being connected to the CAN protocol transceiver interface, and the second interface being 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 in a CAN protocol, and the second data is transmitted in a communication protocol. In the technical solution of the embodiments of the present application, 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, realizing the mutual conversion between the CAN protocol data and the communication protocol data, thereby improving the communication efficiency between the energy storage systems and the transformer substation intelligent apparatuses in the intelligent transformer substation. In a possible implementation of the first aspect, the protocol conversion module includes a control unit; or the protocol conversion module includes a control unit and a programmable logic gate array that are interconnected. Through flexible configuration of the protocol conversion module, the conversion between the CAN protocol and different types of communication protocols can be realized, thereby allowing high versatility of the apparatus. A profile is stored in the control unit, and the control unit uses the profile to convert the first data into the second data, or to convert the second data into the first data. The profile in the control unit can improve the versatility of the conversion apparatus for protocol conversion. In a possible implementation of the first aspect, in the case where 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; orthe first interface and the second sub-interface are provided in the control unit, and the first sub-interface is provided in the programmable logic gate array. In a possible implementation of the first aspect, the first sub-interface is an Ethernet protocol data transceiver interface configured to transmit and receive Ethernet protocol data; and the second sub-interface is a custom protocol data transceiver interf