Unlock instant, AI-driven research and patent intelligence for your innovation.

A direct current fast cutting device

A technology of switching circuits and common negative electrodes, applied in the field of DC fast switching devices, can solve problems such as inapplicability to DC power distribution systems, and achieve the effects of preventing false switching and reducing conduction loss

Active Publication Date: 2022-04-12
STATE GRID JIANGSU ELECTRIC POWER CO ELECTRIC POWER RES INST +3
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the existing low-voltage power distribution fast switching devices are mostly designed for AC power distribution systems, they are not suitable for DC power distribution systems

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
  • A direct current fast cutting device
  • A direct current fast cutting device
  • A direct current fast cutting device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0024] The invention provides a DC fast switching device, which is suitable for fast switching between multiple DC power sources with the same grounding mode and common negative pole. Such as figure 1 Shown is a schematic diagram of the electrical topology of the device of the present invention, including N common-negative switching circuits, common-negative input terminals 2120 , positive output terminals 2210 , negative output terminals 2220 , and output voltage stabilizing capacitors 3110 .

[0025] The N common-negative switching circuits include a first common-negative switching circuit, a second common-negative switching circuit, a third common-negative switching circuit, ..., an N-th com...

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

The invention discloses a DC fast switching device belonging to the technical field of electrical switches, and aims to solve the technical problem that the low-voltage power distribution fast switching device in the prior art is not suitable for a DC power distribution system. The device includes a common negative input terminal electrically connected to the negative pole of the power supply, no less than two common negative switching circuits connected in parallel to each other, the input terminal of the common negative switching circuit is electrically connected to the positive pole of the power supply, and the common negative switching circuit The output end of the common cathode is electrically connected to the positive output terminal, the common negative input terminal is electrically connected to the negative output terminal, and the common negative switching circuit includes a diode cluster composed of no less than two diodes connected in series.

Description

technical field [0001] The invention relates to a direct current fast switching device, which belongs to the technical field of electric switches. Background technique [0002] With the large-scale access of distributed new energy, the characteristics of the traditional power distribution system have been gradually changed. Since distributed new energy needs to be connected to the AC distribution network through AC / DC conversion, it greatly affects the local comprehensive consumption efficiency of distributed energy in the traditional AC distribution network. The use of DC power distribution system can not only solve the high-efficiency access of distributed energy resources, but also improve the power consumption efficiency of DC loads, thereby improving the overall efficiency of the power distribution system. To provide reliable multi-channel power supply for some important DC loads to ensure its high power supply reliability, a low-voltage power distribution fast switchi...

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 Patents(China)
IPC IPC(8): H03K17/76H03K17/567
CPCH03K17/76H03K17/567
Inventor 孙天奎袁宇波杨景刚高磊李鹏苏伟
Owner STATE GRID JIANGSU ELECTRIC POWER CO ELECTRIC POWER RES INST