双极功率传输系统和用于该系统的故障检测器
By using fault detectors to alternately configure grounding circuits and current/voltage sensors in a bipolar power transmission scheme for high-voltage DC power transmission networks, the challenge of neutral area fault detection is solved, improving detection sensitivity and system availability while reducing losses.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- GENERAL ELECTRIC TECH GMBH
- Filing Date
- 2021-09-02
- Publication Date
- 2026-07-17
AI Technical Summary
In high-voltage DC power transmission networks, especially in bipolar power transmission schemes, existing technologies struggle to effectively detect and identify faults between the neutral area and ground, leading to power divider revenue loss and reduced overall utilization.
A fault detector is employed, which uses a switchable grounding circuit and a current/voltage sensor between the neutral area and the ground. Combined with a fault detector controller, the operating state of the grounding circuit is configured alternately. Ground faults in the neutral area are identified by current and voltage measurements, and loop conduit faults are detected by current imbalance.
It improves the sensitivity of neutral region fault detection, reduces revenue loss of power dividers, enhances the overall utilization and availability of bipolar power transmission schemes, and ensures the accuracy and rapid response of fault detection.
Smart Images
Figure CN116018737B_ABST