Electric network data integrated collection method and apparatus

Abstract

The invention discloses a comprehensive collection method and a device with three-state data of electrical parameters: steady state, fault recorder data and dynamic data, and the device is characterized in that the device consists of a high-precision time synchronization module, a synchronous sampling pulse module, an alternating current signal conditioning module, an A / D sampling module, a direct current signal conditioning module, a voltage frequency conversion module, a switch quantity signal conditioning module, a signal processing module, a recording module and a high-speed network communication module, etc. The method and the device have the advantages that: the use of the high-precision time synchronization module and the high-performance signal processing and the communication technologies can realize the synchronous collection of the three-state data of the electrical parameters, complete the functions of monitoring, fault recording, phase angle measurement and power quality analysis, etc., improve the data processing capability and the sampling precision, improve the real-time property of an automatic system of a substation, simplify the design, the manufacture and the operation of secondary equipment of the automatic system of the substation and greatly reduce the construction cost and the maintenance cost of the substation.

Description

technical field [0001] The invention belongs to the field of signal acquisition of electric power system automation system, and is for simplifying the design, manufacture, operation and maintenance of secondary equipment of substation automation system, improving data acquisition speed, processing accuracy and improving information transmission speed. technology. Background technique [0002] At present, the measurement and control device of the power system automation system collects steady-state electrical parameters based on the power flow level, and cannot monitor and identify the dynamic behavior of the power system. The system runs safely and stably. This is because the SCADA system can only provide steady-state, low-sampling density, and asynchronous power grid time-section information, and the dispatch center cannot track the development trajectory of the system based on this information and accurately grasp the dynamics of the system operation. [0003] The existi...

AI Technical Summary

Problems solved by technology

Due to the lack of global algorithms and real-time communication links, it is also impossible to observe and supervise the dynamic behavior of the power system in real time

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