Voltage-reduction clamping type direct-current circuit breaker suitable for direct-current power grid
A technology of DC circuit breaker and DC power grid, applied in power transmission AC network, emergency protection circuit device, electrical components, etc., can solve the problems of poor rapidity and economy, low capacity of high-voltage DC circuit breaker, etc., and achieve low cost and loss. Low, increase the effect of clearing speed
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0015] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.
[0016] A schematic diagram of the topological structure of a step-down clamping DC circuit breaker suitable for DC power grids is shown in figure 1 As shown, including the clamp current limiting branch, charging branch, steady-state low loss branch and freewheeling energy consumption branch;
[0017] figure 2 The schematic diagram of the charging stage is shown. When the charging starts, the isolation switch UFD2 is opened to connect the voltage dividing capacitor Cc, the charging resistor Rc and the charging inductance Lc into the charging circuit. At this time, the DC line starts to charge the clamping capacitor C, and the DC current Idc is shunted as There are two parts of steady state current Isteady and charging current Icharge, such as figure 2 (b) shown. Since th...
PUM
Abstract
Description
Claims
Application Information
- 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, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com