SOA-based real-time communication method between dispatching center and transformer substations

Abstract

The invention discloses an SOA-based real-time communication method between a dispatching center and transformer substations. The method is characterized in that based on a service bus architecture, the dispatching center is provided with a service requesting interface, and each transformer substation is provided with a service providing interface; the arranged interfaces are called when the dispatching center conducts communication with the transformer substations, and data interaction is conducted on a service bus through a remote motor communication module, wherein data interaction comprises two communication modes, namely the request/answer mode and the subscription/release mode. By means of the method, the communication rate is high, performance is reliable, and the real-time performance is high; moreover, communication combination is flexible, the expandability is good, good openness is obtained, debugging and maintaining are convenient, the requirement for good interactivity is met, and meanwhile high anti-interference capability is obtained.

Description

technical field [0001] The invention relates to a real-time communication method between a dispatch center and a substation based on SOA. Background technique [0002] The power telecontrol system is an important part of the power dispatching automation system. It is an important means to realize remote monitoring of the power system, implement frequency regulation, voltage regulation, power generation and load control, and dispatchers to regulate and control under accidents. With the continuous improvement of power system requirements for real-time data interaction between substations and dispatching master stations at all levels, telecontrol information communication methods have become an inevitable trend of development. The 57th Technical Committee of the International Electrotechnical Commission formulated the standard IEC61850 on the substation communication network and system, but it only solved the problem of adopting a unified protocol for the communication between ...

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Problems solved by technology

[0003] The power telecontrol transmission protocols currently used from substations to dispatch centers mainly include cyclic telecontrol protocols (CDT), question-and-answer telecontrol protocols (POLLING), IEC 60870-5, IEC 60870-6, DNP3 and various private protocols. Various power telecontrol communication protocols coexist and are incompatible with each other. They must be converted to communicate with each other, and it is difficult to achieve interoperability.

Manufacturers of power automation equipment at home and abroad have introduced a variety of telecontrol communication devices for power systems, but their communication protocols are different, which leads to the inability of various equipment from different manufacturers to communicate directly, which also leads to communication problems in dispatching centers. The system structure is complicated, which increases the system cost and maintenance cost

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