Breaker system
The circuit breaker system addresses the challenge of current cutoff during accidents in grid-connected power systems by incorporating a high-pass filter and variable impedance circuit, effectively managing current flow and reducing the need for costly capacitor upgrades.
Patent Information
- Application Number
- JP2023150534
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-09-15
- Publication Date
- 2025-03-28
AI Technical Summary
Existing circuit breaker systems in grid-connected power systems struggle to properly cut off current during accidents due to the presence of shunt reactors, which can cause zero-point transition phenomena and require high-cost capacitor withstand voltage increases.
A circuit breaker system that includes a first circuit breaker connected in series with the shunt reactor, a high-pass filter connected in parallel with the shunt reactor, and an impedance circuit that can vary in impedance, allowing for effective current cutoff during accidents.
The system effectively cuts off current during accidents by utilizing the high-pass filter and impedance circuit to manage current flow, preventing zero-point transition phenomena and reducing the need for high-cost capacitor upgrades.