Power supply system with high reliability and high voltage stabilization precision

A voltage stabilization accuracy and reliability technology, applied in the field of DC uninterruptible power supply systems with high reliability and high voltage stabilization accuracy, can solve the problems of difficulty in increasing the backup time of a single battery pack, low efficiency of the power supply system, and loss of efficiency , to achieve the effect of convenient and direct expansion, reducing the number of series and/or parallel connections, and low cost

Pending Publication Date: 2020-12-15
SINOPEC PETROLEUM ENG DESIGN
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Problems solved by technology

Three-stage power conversion Each stage of power conversion brings efficiency loss, so the efficiency of the entire power system is relatively low
However, it is difficult to meet the demand for higher po

Method used

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  • Power supply system with high reliability and high voltage stabilization precision
  • Power supply system with high reliability and high voltage stabilization precision
  • Power supply system with high reliability and high voltage stabilization precision

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[0036] In order to further disclose the technical solutions of the present invention, a clear and complete description will be made below in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention , all other embodiments obtained by those of ordinary skill in the art without creative work, all belong to the protection scope of the present invention.

[0037] A DC uninterruptible power supply system with high reliability and voltage regulation accuracy, including an industrial-grade rectifier module REC2, an industrial-grade DC / DC voltage regulator module CON1, a battery management system BMS, a monitoring module MON1, a man-machine exchange interface, and a battery pack B2 and load L2, which is characterized in that the mains or industrial power supply is connected in parallel with the input ports of multiple in...

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Abstract

A direct-current uninterruptible power supply system with high reliability and high voltage stabilization precision comprises an industrial-grade rectification module REC2, an industrial-grade DC/DC voltage stabilization module CON1, a storage battery management system BMS, a monitoring module MON1, a man-machine exchange interface, a storage battery pack B2 and a load L2. The system is characterized in that a mains supply or an industrial power supply is connected with input ports of a plurality of industrial-grade rectification modules in parallel; input or output lines of storage battery packs B2 at output ports of a plurality of industrial-grade rectification modules are connected in parallel and are respectively connected with input ends of a plurality of industrial-grade DC/DC voltage stabilization modules CON1 in series, output ends of the industrial-grade DC/DC voltage stabilization modules CON1 are connected in parallel and then are connected with a load, and signal lines of the storage battery packs B2 are connected with a storage battery management system BMS; communication ports of the industrial-grade rectification module REC2 and the industrial-grade DC/DC voltage stabilization module are connected in parallel with a signal line through signal lines, wherein the signal line is connected with a communication port of the storage battery management system BMS and a communication port of the monitoring module MON1.

Description

technical field [0001] The invention relates to the technical field of uninterruptible power supplies, in particular to a DC uninterruptible power supply system with high reliability and high voltage stabilization precision. Background technique [0002] In petroleum, chemical, iron and steel smelting and other industrial fields, equipment such as production equipment, safety protection and measurement control cannot accept the huge cost caused by the loss of mains power and safety production, etc., all have the demand for DC uninterrupted power supply. And there are also high requirements for the reliability of the DC uninterruptible power supply system and the voltage regulation accuracy of the power supply voltage. [0003] Figure 5 shows the DC uninterruptible power supply system (DC UPS) commonly used in the current industrial field, generally using industrial-grade AC uninterruptible power supply UPS1 (AC UPS) and industrial-grade rectifier module REC1 (AC / DC) power tw...

Claims

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Application Information

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IPC IPC(8): H02J9/06
CPCH02J9/061
Inventor 刘建武李福荣王国栋王军修钰翔张化德王伟李恒轩崔超王万里绍昆伦宋晓双王慧周莉华
Owner SINOPEC PETROLEUM ENG DESIGN
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