A GOOSE interlocking protection interoperation method

Abstract

The present invention discloses a GOOSE interlocking protection interoperation method, which stipulates the fifth byte to the sixth byte of the MAC address and the APPID of the GOOSE data set of the protection device, and adopts the power supply station number represented by coding plus the circuit breaker number so that different GOOSE interlocking protection devices of different manufacturers can distinguish and transmit information to each other, thereby realizing interoperability.

Description

Technical Field

[0001] The invention relates to the field of relay protection, in particular to a GOOSE interlocking protection interoperation method. Background Art

[0002] Based on GOOSE interlocking protection, protection devices transmit GOOSE digital signals to each other through GOOSE switches, which greatly reduces the connection between devices.

[0003] However, if some GOOSE interlocking protection devices at the protection device application site use GOOSE interlocking protection devices from other manufacturers, these GOOSE interlocking protection devices from different manufacturers cannot transmit information that can be analyzed to each other, that is, they cannot interoperate, which brings inconvenience to on-site implementation, maintenance, and expansion.

[0004] The patented technical solution "CN111224388B A node interlocking protection method suitable for multiple power supply modes" authorized by the patentee proposes an interlocking protection method suitable for multiple power supply systems. Although a GOOSE switch is used to exchange signals, the problem of message transmission between GOOSE interlocking protection devices from different manufacturers is still not solved. Summary of the invention

[0005] Purpose of the invention: In view of the above technical problems, the purpose of the present invention is to provide a GOOSE interlocking protection interoperation method, so that GOOSE interlocking protection devices of different manufacturers can mutually transmit identifiable information to achieve interoperability.

[0006] Technical solution: The present invention can adopt the following technical solution:

[0007] A GOOSE interlocking protection interoperability method is used to agree on the APPID of the GOOSE data set of the protection device. The steps are as follows:

[0008] The initial number is five digits, the ten thousandth and thousandth digits are the power supply station number, and the hundredth, tenth and unit digits are the circuit breaker number;

[0009] When the initial number is less than 16000, the APPID uses the initial number;

[0010] When the initial number is not less than 16000 and the initial number is less than 32000, the APPID is (initial number - 16000) + 300;

[0011] When the initial number is not less than 32000 and the initial number is less than 48000, the APPID uses (initial number - 32000) + 600; otherwise, the power supply station number is reported to be wrong.

[0012] Furthermore, the fifth byte to the sixth byte of the MAC address of the GOOSE data set are also agreed upon, and the fifth byte to the sixth byte of the MAC address of the GOOSE data set are the same as the APPID.

[0013] Furthermore, the MAC address consists of six bytes, and the MAC address range of the GOOSE data set is 01-0C-CD-01-00-00 to 01-0C-CD-01-FF-FF, that is, the first byte to the fourth byte of the MAC address is fixed to 01-0C-CD-01, and the fifth byte to the sixth byte range is 0000 to FFFF.

[0014] Furthermore, the APPID ranges from 0000 to 3FFF.

[0015] Furthermore, the fifth byte and the sixth byte of the MAC address and the APPID are both in the range of 0000 to 3FFF.

[0016] Furthermore, the power supply station number is less than 48.

[0017] Beneficial effect: Compared with the prior art, the present invention has the following significant advantages: by calculating and adjusting the power supply station number and circuit breaker number information, the fifth byte to the sixth byte of the MAC address and the APPID of the GOOSE data set of the protection device are agreed upon, so that GOOSE interlocking protection devices of different manufacturers can transmit and distinguish information to each other, thereby achieving interoperability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Adjust the flow chart for the fifth to sixth bytes of the MAC address and the APPID. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] In order to achieve interoperability between GOOSE interlocking protection devices, the fifth byte to the sixth byte of the MAC address and the APPID of the GOOSE data set of the protection device are agreed upon.

[0021] See also Figure 1 As shown, the present invention only improves the fifth byte to the sixth byte of the MAC address of the GOOSE data set of the protection device and the APPID.

[0022] GOOSE stipulates that MAC addresses and APPIDs are set for data sets that transmit signals to each other for sending identification and receiving identification.

[0023] The MAC address consists of six segments of two hexadecimal numbers in each segment. The MAC address range of the GOOSE dataset is 01-0C-CD-01-00-00 to 01-0C-CD-01-FF-FF, that is, the first to fourth segments of the MAC address are fixed to 01-0C-CD-01, and the fifth to sixth bytes of the MAC address range from 0000 to FFFF. The APPID range used for GOOSE is 0000 to 3FFF.

[0024] The range of APPID is narrower than the variable range of MAC address. For the sake of simplicity, the content of APPID is used as the content of the fifth to sixth bytes of MAC.

[0025] Considering the convenience of interoperability and APPID readability, APPID uses the power station number plus the circuit breaker number represented by coding. The maximum value of APPID is 3FFF, which is 16383 in decimal, that is, 0 to 16383 is used to represent the power station number plus the circuit breaker number.

[0026] A power supply network corresponding to a GOOSE interlocking protection may have 20 to 30 power stations, and the circuit breaker number is usually expressed as a three-digit number, that is, in the form of XYZ. If the first two digits represent the power station, they represent 0 to 16, that is, a total of 17 power stations can be represented. If there are fewer power stations, the demand for 20 to 30 may be met. If the last three digits represent the circuit breaker number in a power station, when the power station number is less than 16, it can represent 0 to 999, that is, a total of 1,000 circuit breakers can be represented, which can meet the demand. Therefore, the maximum number of 16383 cannot effectively represent the above power station number plus the circuit breaker number.

[0027] Note that the circuit breaker number is expressed as a three-digit number, i.e., in the form of XYZ, where X is not greater than 3, and this digit is used as an extension for the number of power stations exceeding 16.

[0028] Therefore, the following method is used to adjust the power supply number and circuit breaker number:

[0029] The initial number is "power supply station number" + "circuit breaker number". If the initial number is less than 16000, the fifth byte to the sixth byte of the MAC address and the APPID = the initial number; if 32000> the initial number ≥ 16000, the fifth byte to the sixth byte of the MAC address and the APPID = (initial number - 16000) + 300; if 48000> the initial number ≥ 32000, the fifth byte to the sixth byte of the MAC address and the APPID = (initial number - 32000) + 600.

[0030] Example

[0031] Refer to Table 1 below and provide different power supply station numbers for calculation.

[0032] The power station number is 15 and the circuit breaker number is 399, so the initial number is 15399, which is less than 16000. The decimal number of the fifth byte to the sixth byte of the MAC address and the APPID is 15399, and the hexadecimal number is 3C27.

[0033] The power station number is 16 and the circuit breaker number is 399, so the initial number is 16399, which is greater than 16000 and less than 32000. The initial number is adjusted to 16399-16000+300=699. The decimal number of the fifth byte to the sixth byte of the MAC address and the APPID is 699, and the hexadecimal number is 2BB.

[0034] The power station number is 31, and the circuit breaker number is 399. The initial number is 31399, which is greater than 16000 and less than 32000. The initial number is adjusted to 31399-16000+300=15699. The decimal number of the fifth byte to the sixth byte of the MAC address and the APPID is 15699, and the hexadecimal number is 3D53.

[0035] The power station number is 32, and the circuit breaker number is 399. The initial number is 32399, which is greater than 32000 and less than 48000. The initial number is adjusted to 32399-32000+600=999. The decimal number of the fifth byte to the sixth byte of the MAC address and the APPID is 15699, and the hexadecimal number is 3E7.

[0036] The power station number is 47, the circuit breaker number is 399, and the initial number is 47399, which is greater than 32000 and less than 48000. The initial number is adjusted to 47399-32000+600=15999. The decimal number of the fifth byte to the sixth byte of the MAC address and the APPID is 15999, and the hexadecimal number is 3E7F.

[0037] It can be seen from the calculation that the above process is reversible, that is, based on the adjusted number, the initial number can be restored to obtain the power supply station number and circuit breaker number.

[0038]

Claims

1. A GOOSE interlocking protection interoperation method, characterized in that: To agree on the APPID of the GOOSE dataset for the protection device, the steps are as follows: The initial number is five digits, the ten thousandth and thousandth digits are the power supply station number, and the hundredth, tenth and unit digits are the circuit breaker number; When the initial number is less than 16000, the APPID uses the initial number; When the initial number is not less than 16000 and the initial number is less than 32000, the APPID is (initial number - 16000) + 300; When the initial number is not less than 32000 and the initial number is less than 48000, the APPID uses (initial number - 32000) + 600; otherwise, the power supply station number is reported to be wrong; The fifth byte to the sixth byte of the MAC address of the GOOSE data set are also agreed upon, and the fifth byte to the sixth byte of the MAC address of the GOOSE data set are the same as the APPID.

2. A GOOSE interlocking protection interoperation method according to claim 1, characterized in that: The MAC address consists of six bytes. The MAC address range of the GOOSE data set is 01-0C-CD-01-00-00 to 01-0C-CD-01-FF-FF, that is, the first byte to the fourth byte of the MAC address is fixed to 01-0C-CD-01, and the fifth byte to the sixth byte ranges from 0000 to FFFF.

3. A GOOSE interlocking protection interoperation method according to claim 2, characterized in that: The APPID ranges from 0000 to 3FFF.

4. A GOOSE interlocking protection interoperation method according to claim 3, characterized in that: The fifth and sixth bytes of the MAC address and the APPID range from 0000 to 3FFF.

5. A GOOSE interlocking protection interoperation method according to claim 1, characterized in that: The power supply station number is less than 48.

6. A computer device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the steps of the method described in any one of claims 1 to 5 are implemented.

7. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 5 are implemented.

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