Charging device and charging control method based on fuzzy control algorithm

Abstract

The invention discloses a charging device and a charging control method based on a fuzzy control algorithm. The charging device comprises a DC / DC conversion module group, wherein the DC / DC conversionmodule group comprises a plurality of parallel DC / DC conversion modules; an Energy storage capacitor module; a Voltage detection module; The main control module interacts with the upper computer, andthe main control module is provided with a fuzzy controller. The charging device and the charging control method based on the fuzzy control algorithm of the invention adopt a plurality of parallel DC / DC conversion modules to charge the energy storage capacitor module, and can adopt the charging mode of first constant current and then constant voltage to the energy storage capacitor module, therebyimproving the charging speed and precision of the charging device; The switching voltage from a constant current charging mode to a constant voltage charging mode is calculated by fuzzy controller toensure that the system is switched under reasonable switching voltage. In the constant voltage charging mode, the average current method is used to make the output current of each DC / DC converter module basically the same, which ensures the stability and service life of the charging device.

Description

technical field [0001] The invention relates to the field of geophysical exploration equipment, in particular to a charging device and a charging control method based on a fuzzy control algorithm. Background technique [0002] Magnetic Resonance Sounding (MRS) is a non-invasive groundwater direct detection technology based on the principle of nuclear magnetic resonance, which is widely used in groundwater detection at a depth of 0 to 150m. When the nuclear magnetic resonance water detection system detects groundwater, it first charges the energy storage capacitor module through the DC / DC conversion module, and then the energy storage capacitor module provides the launch device with the energy required for launch, and the launch device acts as the nuclear magnetic resonance water detection system. Therefore, the voltage accuracy of the energy storage capacitor module has a great influence on the detection effect and inversion results. In addition, a detection includes three ...

AI Technical Summary

Problems solved by technology

However, the above-mentioned technology has the following defects: (1) due to the large current and long shutdown action time during shutdown, overcharging is prone to occur, which in turn leads to low charging accuracy; Spike pulses will be generated to damage the device, which will greatly reduce the service life of the power supply unit

However, the charging current of the array charging method is large, and the overcharging phenomenon is more serious.

[0005] The energy storage devices of the nuclear magnetic resonance water detection system in the above related technologies all have the problems of low charging accuracy and serious overcharging.

Therefore, it is necessary to design an energy storage capacitor charging scheme that can not only solve the problem of slow charging speed but also take into account charging accuracy and stability.

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