智能水冷型发电机励磁系统的研究

Research on Excitation System of Intelligent Water-cooled Generator

针对自并励静止励磁系统整流柜及励磁变压器的冷却要求,给出了智能空-水热交换的冷却方式,即风机将设备产生的热量带走,经过热交换器冷却,进而重新冷却设备,最终热量随外部开式水带出系统。通过在单个整流柜及励磁变压器上加装冗余的空-水热交换器,同时检测水流量、温度、压力等数据,实现智能控制及管理,从而大大提高了整流柜及变压器的额定出力和设备的防尘能力,提高了整个励磁系统的可维护性和便捷性,降低了对电厂通风散热条件的要求。

In this paper, according to the cooling requirements of static excitation system rectifier cabinet and excitation transformer, the cooling mode of intelligent air-water heat exchange is given, that is, the heat generated by the equipment is taken away by the fan, cooled by the heat exchanger, and then the equipment is cooled again, and finally the heat is carried out of the system with the external open water. By installing redundant air-water heat exchangers on a single rectifier cabinet and excitation transformer, and at the same time detecting water flow, temperature, pressure and other data, intelligent control and management are realized, which greatly improves the rated output of the rectifier cabinet and the transformer and the dust-proof capacity of the equipment, improves the maintainability and convenience of the entire excitation system, and reduces the requirements for the ventilation and heat dissipation conditions of the power plant.