Intelligent detection system for transformer station computer monitoring system

Abstract

The invention belongs to the technical field of intelligent detection for power systems and relates to an intelligent detection system for a transformer station computer monitoring system. The intelligent detection system comprises an upper computer, a measurement and control device and an intelligent detection device, wherein the intelligent detection device comprises a power module, a network interface, a singlechip, a digital signal processor (DSP), a field programmable gate array (FPGA), a digital / analog (D / A) converter, a synchronization module, a switching value input interface, a switching value output interface, a liquid crystal display (LCD) and input equipment; the intelligent detection device is connected with the upper computer through the network interface; the measurement and control device is connected with the intelligent detection device through the power module; the measurement and control device is connected with the upper computer, the switching value input interface and the switching value output interface respectively; and the network interface, the singlechip, the DSP, the FPGA, the D / A converter and the power module are connected with one another sequentially. The intelligent detection system has the characteristics of high phase precision, short response time and the like, and can meet a test requirement of the relevant national standard on the detection for the transformer station computer monitoring system.

Description

technical field [0001] The invention belongs to the technical field of intelligent detection of power systems, and in particular relates to an intelligent detection system used in a substation computer monitoring system. Background technique [0002] The substation computer monitoring system provides rich on-site information for dispatching operators, and makes an important contribution to grasping the operation status of the primary system in time and improving the safety and reliability of power grid operation. From this point of view, whether the substation computer monitoring system is running normally and reliably will affect the safety and reliability of the power grid operation. Therefore, it is of great significance to ensure the stable and reliable operation of the substation computer monitoring system. [0003] In order to ensure the safe and stable operation of the substation computer monitoring system, the country has formulated a series of regulations, such as ...

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Problems solved by technology

[0006] The invention not only solves the problems of low phase output precision, poor linearity and stability, mutual influence of three-phase output, and great influence of load changes on the output phase of the meter-source integrated power source, but also realizes the use of less equipment and completes the national The test content of various test indicators stipulated in the regulations on the test of substation computer monitoring system formulated

In addition, the invention solves technical problems such as the output of the precision source being affected by temperature through technologies such as full digital calibration and automatic temperature compensation

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