Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

High voltage large power uninterrupted power supply

A high-power, power supply technology, applied in current collectors, electric vehicles, electrical components, etc., can solve the problems of electrical appliances that cannot meet high-power, unstable output voltage, low efficiency, etc., and achieve the elimination of steady-state and dynamic voltage equalization problem, reduce low-order harmonics, and have strong anti-interference performance

Inactive Publication Date: 2002-11-06
青岛创统科技发展有限公司
View PDF0 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The traditional uninterruptible power supply (UPS) has the following shortcomings and deficiencies: the output power is small, generally below hundreds, tens, or several KW or even smaller, it is difficult to make it large, and it cannot meet the requirements of high-power electrical appliances, especially important experiments. Room and some important equipment need for uninterruptible power supply; low voltage cannot meet the needs of high-voltage electrical appliances for uninterruptible power supply; current waveform is poor, high-order and low-order harmonics are very rich, and the power factor under load Low, often less than 0.9 or even lower; poor output stability, unstable output voltage, and it is difficult to achieve more than 10,000 stability; low efficiency, generally less than 0.9 or even smaller
In addition, the existing uninterruptible power supply structure is not reasonable enough. When a part of it fails, the whole machine often stops working and needs to be repaired.
The above-mentioned existing uninterruptible power supply is difficult to meet the requirements of various electrical appliances for uninterruptible power supply

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High voltage large power uninterrupted power supply
  • High voltage large power uninterrupted power supply
  • High voltage large power uninterrupted power supply

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1. A kind of high-voltage high-power uninterruptible power supply, such as figure 1 shown. It consists of a housing and electrical circuits installed in the housing. The electrical circuit is composed of a three-phase AC input circuit and a power unit module circuit connected with the three-phase AC input circuit. The power unit module consists of a rectifier, a DC filter capacitor, an IGBT single-phase full-bridge inverter, a battery pack connected in parallel to the output of the rectifier, and a charger connected to the three-phase AC input circuit and the battery pack.

Embodiment 2

[0028] Embodiment 2. A kind of high-voltage high-power uninterruptible power supply, such as figure 2 shown. Its three-phase AC input circuit is a three-phase isolation transformer. The power unit module circuit is composed of 6 power unit modules. Each phase has 2 power unit modules connected in series. The power unit module circuit is also connected with the reactor and the three-phase output transformer successively. Each power cell module uses an independent charger.

Embodiment 3

[0029] Embodiment 3. A kind of high-voltage high-power uninterruptible power supply, such as image 3 shown. Its three-phase AC input circuit is a phase-shifting transformer. The power unit module circuit is composed of 12 power unit modules, and each phase has 4 power unit modules connected in series. The power unit module circuit is also respectively connected with the three-phase output transformer and the controller, and the controller is composed of an interconnected single-chip circuit, an industrial control computer and a logic program controller. Its input voltage is 3KV. Each power cell module uses an independent charger.

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

No PUM Login to View More

Abstract

A high-voltage and high-power uniterrupted power source has its circuit consisting of a three-phase AC input transformer and a power unit module circuit which is composed of 6 power unit modules and each of them consisting of rectifier, DC filter capacitor, IGBT single phase full bridge inverter, storage battery set and electric charger, each phase having 2 power unit modules connected in seriesand connected in front or rear with reactor and three-phase output transformer or is composed of 12, 15 or 21 power unit modules, each correspondingly having 4,5 or 7 power unit modules connected in series and connected with three-phase output transformer and controller separately for the individual charger being used by each independently. The controller is composed of a chip circuit connected to each other, industrial computer and logic program controller.

Description

technical field [0001] The invention belongs to the technical field of power electronic power supply, and more specifically relates to a high-voltage high-power uninterruptible power supply manufactured by a new high-voltage frequency conversion technology. Background technique [0002] The traditional uninterruptible power supply (UPS) has the following shortcomings and deficiencies: the output power is small, generally below hundreds, tens, or several KW or even smaller, it is difficult to make it large, and it cannot meet the requirements of high-power electrical appliances, especially important experiments. Room and some important equipment need for uninterruptible power supply; low voltage cannot meet the needs of high-voltage electrical appliances for uninterruptible power supply; current waveform is poor, high-order and low-order harmonics are very rich, and the power factor under load Low, often less than 0.9 or even lower; poor output stabil...

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
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H02J7/10
Inventor 刘同利隋学礼
Owner 青岛创统科技发展有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com