Power distribution network grounding fault active arc extinction method without power supply at converter direct current side
A technology for power supply and ground faults, which is applied in the directions of emergency protection circuit devices for limiting overcurrent/overvoltage, AC network circuits, reactive power adjustment/elimination/compensation, etc., and can solve the problem of expanding the device footprint and durability High pressure requirements, lower pressure resistance requirements, etc., to achieve the effect of solving the difficulty of source extraction, small installation area, and low pressure resistance requirements
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0029] In order to make the features and advantages of this patent more obvious and easy to understand, the following special examples are described in detail as follows:
[0030] An embodiment of the present invention provides an active arc suppression method for a ground fault in a distribution network without a power supply on the DC side of a converter. The topological structure of the arc suppression device in this method is that one end of the two-phase CHB bridge arm is connected to any two-phase line of the distribution network, and the other end is short-circuited as the midpoint of the bridge arm. The coil is grounded, which can fully compensate the single-phase ground fault current of the distribution network without additional DC power supply. When the arc suppression device is connected to the grid for the first time, the distribution network charges the DC side capacitor of the device through the current limiting resistor. After the natural charging is completed,...
PUM
![No PUM](https://static-eureka.patsnap.com/ssr/23.2.0/_nuxt/noPUMSmall.5c5f49c7.png)
Abstract
Description
Claims
Application Information
![application no application](https://static-eureka.patsnap.com/ssr/23.2.0/_nuxt/application.06fe782c.png)
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap