Principle and Control Design of a Novel Hybrid Arc Suppression Device in Distribution Networks

A single line-to-ground (SLG) fault may lead to a more severe line-to-line and power supply interruption if the ground-fault current exceeds certain value. Arc suppression device (ASD) is good solution eliminate current. novel hybrid ASD proposed in this article, which consists of passive an active one. The utilizes multiterminal breakers isolation transformer couple secondary voltage zig-zag grounding neutral point compensate majority uses single-phase source inverter residual due leakage inductance device. dual-loop control method for designed accurate compensation. Results simulation prototype experiment validate effectiveness ASD. does not need detect distributed parameters, it has lower cost, less complexity, higher reliability, better performance, compared other ASDs.