Communication system and communication method of DC grid

A DC power grid and communication system technology, applied in the DC power grid communication system and communication field, can solve the problems of increasing communication resources between stations, consuming bandwidth resources, wasting costs, etc., achieving simple communication configuration, ensuring communication, and reducing the amount of data.
CN107947962AInactive Publication Date: 2018-04-20NR ELECTRIC CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NR ELECTRIC CO LTD
Publication Date
2018-04-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a communication system of a DC grid. The DC grid comprises DC grid control equipment and N sets of converter station control equipment. The communication system comprises n transmission channels, wherein one end of each of the n transmission channels is set at the DC grid control equipment, and the other end is connected with the corresponding converter station control equipment, wherein n <= N; and the transmission channels can adopt optical fibers for transmitting data to be exchanged, the converter station control equipment is only in communication and connection with the DC grid control equipment, and the data to be exchanged among the converter station control equipment is forwarded by means of the DC grid control equipment. The communication system achieves the purposes of reducing communication and bandwidth resource consumption through designing communication between stations, and can be more suitable for the access of other converter stations in the later period. The invention further discloses a communication method of the DC grid.
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Description

technical field

[0001] The invention belongs to the technical field of DC power transmission in electric power systems, and in particular relates to a DC power grid communication system and a communication method. Background technique

[0002] With the progress and development of DC technology, DC power grid was born. Compared with the existing multi-terminal DC transmission projects, the control of the DC grid is more complicated. In addition to the original converter station control equipment of each converter station, the DC grid control equipment for the overall coordination and control of the DC grid is added. However, there is information interaction between the DC grid control equipment and the converter station control equipment, such as control variables, parameters, and fixed values.

[0003] Conventional multi-terminal direct current transmission projects adopt point-to-point communication in the design of the communication system, that is, every two converter s...

Claims

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