Power supply monitoring method and system of detector in petroleum pipeline with self-generating system

Abstract

The invention relates to a power supply monitoring method and system of a detector in a petroleum pipeline with a self-generating system. The end voltage, the end current and the surface temperature of an inner detector storage battery pack are obtained in real time, whether overvoltage or overcurrent happens to an AC/DC converting circuit and a DC-DC Buck circuit in the detector is monitored, according to the end voltage, the end current and the surface temperature, a storage battery equivalent circuit is used for obtaining an SOC estimated value in a computing mode, the SOC estimated value is subjected to real-time judgment, according to the magnitude of the SOC estimated value, turning on and off of a sensor are controlled, and remaining time corresponding to storage battery pack energy loss is predicted. The power supply monitoring system of the detector in the petroleum pipeline with the self-generating system comprises an SOC estimation module, a power supply monitoring module, a charging-discharging module and an energy prediction module. According to the power supply monitoring method and system, SOC values are corrected from different angles, reliability and stability are improved, and accordingly the detector in the petroleum pipeline can estimate surplus electricity amount to guarantee normal detecting work.

Description

technical field [0001] The invention belongs to the technical field of electrical engineering and automation thereof, and in particular relates to a power monitoring system and method for a detector in an oil pipeline with a self-generating system. Background technique [0002] With the rapid development of my country's oilfields, the requirements for the development of oil pipeline transportation technology, especially the flaw detection technology for oil pipeline damage and defects are becoming more and more significant. As the core part of the entire detector power system, the power control system undertakes the power support for each functional link of the detector. The power control system includes multiple functional modules, the core part of which is the SOC estimation module of the battery pack state of charge, and the other modules cooperate around this module to achieve the purpose of power management. Therefore, a well-designed power management system is the tec...

AI Technical Summary

Problems solved by technology

The traditional power control system does not fully consider the application of self-generating modules, and the design functions are not comprehensive enough

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