A column-phase ups module and ups system for power supply
A phase and circuit technology, applied in electrical components, circuit devices, emergency power supply arrangements, etc., can solve the problems of large space, high cost, low work efficiency, etc., and achieve the effect of improving efficiency, saving cost, saving space and cost
Active Publication Date: 2016-12-07
VERTIV CORP
View PDF3 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0007] The technical problem to be solved by the present invention is to provide a low-cost, small-space and high-efficiency column-phase power supply for the above-mentioned column-phase power supply UPS module of the prior art, which has large cost, large space, and low work efficiency. UPS module
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0025] Such as figure 2 As shown, in the logic structure diagram of Embodiment 1 of the column-phase power supply UPS module of the present invention, the column-phase power supply UPS module includes a PFC rectification unit 100 , an inverter unit 200 and a DC / DC conversion unit 300 . The PFC rectifier unit 100 includes an upper bridge arm and a lower bridge arm, and the upper bridge arm and the lower bridge arm respectively charge the positive and negative busbars through the two-phase mains power when the AC mains power is normal, and each bridge arm includes an energy storage inductance . The DC / DC conversion unit 300 includes a BUCK-BOOST circuit.
[0026]When the AC power is normal, the AC power is rectified by the PFC rectifier unit 100 to obtain a DC voltage, and the inverter unit 200 inverts the DC voltage into an AC voltage to supply power to the load (not shown) and pass the charger (not shown) out) to charge the battery pack. When the AC power is abnormal, the ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a column-phase power supply UPS module and a UPS system. The UPS module includes a PFC rectification unit and an inverter unit connected in sequence, and the PFC rectification unit includes an upper bridge arm and a lower bridge arm, and each bridge arm includes Energy storage inductance, the UPS module also includes a DC / DC conversion unit, the DC / DC conversion unit includes a BUCK‑BOOST circuit, when the AC power is abnormal, the DC / DC conversion unit charges the positive bus through the upper bridge arm of the PFC rectifier unit, And the negative bus is charged through the BUCK‑BOOST circuit and the energy storage inductor in the lower bridge arm. Implementing the technical scheme of the present invention, when the AC mains is normal or abnormal, the upper bridge arm of the PFC rectifier unit is shared, which makes it unnecessary to use an isolation booster transformer when a plurality of column-phase UPS modules share the battery pack. The space and cost are saved, the trend of miniaturization of switching power supply is complied with, and the loss is reduced. In addition, since the DC / DC conversion unit and the PFC rectification unit have a coupling loop, some PFC rectification unit devices are used to save costs and improve efficiency.
Description
technical field [0001] The invention relates to power electronics technology, in particular to a UPS module and UPS system for column-phase power supply. Background technique [0002] UPS (Uninterruptible Power Supply, uninterruptible power supply) is widely used in many industries such as electric power, telecommunications, finance, government, manufacturing, etc. It can guarantee to continue working for a period of time after a power outage, so that users will not affect their work or lose data due to power outages. It can also eliminate "power pollution" such as power surges on the mains, momentary high voltage, momentary low voltage, wire noise and frequency deviation. [0003] At present, in the design of small and medium power UPS systems, in order to solve the problem of sharing battery packs when multiple UPS modules are connected in parallel, such as figure 1 As shown, the output end (LINE1) of the first-phase AC mains is connected to the first end of the energy st...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H02J9/04
Inventor 肖学礼陈宗辉沈宝山
Owner VERTIV CORP