Wireless intelligent sensor network system for monitoring states of intelligent substation devices

Abstract

The invention relates to a wireless intelligent sensor network system for monitoring states of intelligent substation devices. The system is overall divided into a transformer substation level state monitoring system and a dispatching center level state monitoring system, the transformer substation level state monitoring system is divided into a sensing layer, an accessing layer and an application layer, an intelligent sensor on the sensing layer is responsible for collecting image and scalar data, and transmitting information to a monitoring center platform on the application layer through the accessing layer, and key information is transmitted to a dispatching center monitor integration platform through an electric power data communication network. A self-organization and self-recovery wireless substation device monitoring network is established to replace traditional wired ways, so that hierarchical distribution co-processing of data is achieved, communication load balancing capacity of the monitoring network is improved, wiring difficulties of installation are reduced, installation costs of transformation and upgrade of the substation devices are reduced, flexibility and use ratio of the monitoring network system are enhanced, overall assessment of operation conditions of the substation devices is enhanced, and fault hidden dangers of the devices can be timely found and eliminated.

Description

technical field [0001] The invention belongs to the technical field of on-line monitoring of substation equipment status, and in particular relates to a wireless intelligent sensor network system for monitoring the status of intelligent substation equipment. Background technique [0002] At present, smart substations mostly adopt a three-layer structure, namely, station control layer, bay layer, and process layer. The process layer mainly integrates the intelligent components of traditional primary and secondary equipment, such as intelligent transformers, intelligent circuit breakers, unconventional transformers, etc. The status information collection of these equipment is for equipment status evaluation, risk assessment, maintenance strategy formulation and maintenance The basis for maintenance, etc., and the improvement of the performance level of online monitoring of equipment status is an inevitable requirement for the safe operation of smart substations and the improve...

AI Technical Summary

Problems solved by technology

With the development of smart grid technology, the IEC standard puts forward the concept and standard of intelligent electronic equipment IED for substation equipment status monitoring, and on this basis, intelligent components, integrated intelligent terminals and other integrated functional equipment have been developed. The monitoring of various substation equipment generally adopts a wired network solution, but this solution has disadvantages such as inconvenient line layout and modification, difficulty in network upgrade and expansion, complicated installation and maintenance, and high cost. Therefore, wireless technology is considered to expand and integrate substation equipment status monitoring technology upgrade

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