Incoming water detection method for permanent magnet motor intelligent water pump

The invention discloses an incoming water detection method for a permanent magnet motor intelligent water pump, and belongs to the technical field of water pumps. The problem of incoming water detection is solved. According to the key point of the technical scheme, the purpose of finally detecting incoming water is achieved by detecting the counter electromotive force voltage generated when tap water drives an impeller and a rotating shaft to rotate by using the power generation characteristics of a permanent magnet synchronous motor or a brushes direct-current motor, and the effects of simplifying design, being reliable in structure, convenient to maintain and improving practicability are achieved. 本发明公开了一种用于永磁电机智能水泵的来水检测方法，属于水泵技术领域，解决了来水检测的问题，其技术方案要点是利用永磁同步电机或直流无刷电机的发电特性，通过检测自来水带动叶轮及转轴转动产生的反电动势电压达到最终检测来水的目的，达到了简化设计、结构可靠，便于维护，提高实用性效果。