A Novel Fire Control System for Distributed Photovoltaic Station

摘要

Stimulated by the worldwide construction of distributed photovoltaic (PV) power stations, the importance of safety control including fire detection and electrical shut-down for protection of personnel has been seriously considered by this community. In this paper, we propose a novel design strategy of safety control system for fire emergency detection and protection of PV stations. It can reduce the accumulation of DC voltage based on a three-level control system including high temperature detection and electrical short-circuit switch with active and passive operation modes. The system has a simple and reliable structure, and does not require a large control network rearrangement. In the future, it can be further upgraded by developing according algorithms for 24-hour automatic protection, as well as combination with fire-fighting robots to reduce personnel injuries, therefore it gives rise to an effective platform to tackle the future safety control of PV power station.