Fault tolerance testing method for simulation system of digital transformer substation

Abstract

The invention discloses a fault tolerance testing method for a simulation system of a digital transformer substation. The system is only controlled based on the digital substation and comprises a process layer, an interval layer and a transformer substation layer, wherein protection equipment, measurement control equipment and metering equipment are positioned in the interval layer; pieces of information between the interval layer and the process layer are interacted by a sampling value mapped by a specific communication service and a object-oriented transformer substation event to record a sampling value of the simulation system of the full-digital transformer and generic object-oriented substation event (GOOSE) message information, analyze and judge output information of the simulation system and the working performance of tested equipment in time, so that functions of recording digital faults, calibrating the current voltage waveform accuracy, adjusting the time standard and approval phases are realized; network analysis equipment can be used for recording a message of the whole network and analyzing an integrated Ethernet chip (IEC) 61850 protocol; and therefore, a whole processing and analyzing system can effectively and rapidly process a messages of the whole substation and is stable to operate.

Description

technical field

[0001] The invention relates to the field of electric power control, in particular to a fault-tolerant testing method for a digital substation simulation system. Background technique

[0002] Digital substation has the characteristics of information digitization, communication network, and information sharing standardization, and it can develop the basis for advanced applications, which is an important content of smart grid construction. Network communication instead of secondary cables is an important feature of digital substations. It is inevitable that the system will malfunction or refuse to operate due to faults in intelligent units or incorrect messages. Therefore, being able to simulate fault messages will be an important function of the simulation test system in the future. At present, there is no fault-tolerant test method for the performance of secondary equipment such as relay protection in digital substations in operation in China, which cannot me...