A DC screen power supply device using a hybrid power supply

Abstract

The invention provides a direct-current screen power source device utilizing hybrid power sources. The direct-current screen power source device comprises a capacitor charging unit, a battery charging unit and an alternating-current monitoring unit which are all connected with the power sources, wherein the output of the capacitor charging unit is connected with a bus voltage regulating unit, a first feeder output unit and a capacitor module; the capacitor module is connected with the bus voltage regulating unit which is connected with a second feeder output unit; the output end of the battery charging unit is connected with the second feeder output unit by use of a battery module and a DC / DC conversion unit; the capacitor charging unit, the battery charging unit, the capacitor unit, the battery module, the DC / DC conversion unit, the bus voltage regulating unit, the first feeder output unit and the second feeder output unit are connected to a direct-current monitoring unit; the first feeder output unit and the second feeder output unit are connected to an insulation detection unit; the battery module is connected with a battery polling unit; the outputs of the alternating-current monitoring unit, the battery polling unit, the direct-current monitoring unit and the insulation detection unit are connected to a main monitoring unit connected with a human-computer interface. The direct-current screen power source device utilizing hybrid power sources is capable of providing large-current charging and discharging.

Description

technical field [0001] The invention relates to a DC screen power supply. In particular, it relates to a DC panel power supply device with a supercapacitor module and a battery using a hybrid power supply. Background technique [0002] Supercapacitor (also known as electrochemical capacitor) is a new type of charge storage element, which has the advantages of large capacity, support for large current charge and discharge, long cycle life, good low temperature characteristics, environmental protection and no pollution, so supercapacitors are used in new energy, transportation Transportation, industry and other fields have broad application prospects. [0003] The traditional DC panel power supply uses batteries as backup power. Although batteries have the advantage of large capacity, with the development of modern society, higher requirements are put forward for environmental protection. Since the battery dielectric is lead-acid medium, which is heavy metals and acidic subst...

AI Technical Summary

Problems solved by technology

[0003] The traditional DC panel power supply uses batteries as backup power. Although batteries have the advantage of large capacity, with the development of modern society, higher requirements are put forward for environmental protection. Since the battery dielectric is lead-acid medium, which is heavy metals and acidic substances, batteries Pollution to the environment after scrapping is more serious

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