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水力发电机在运转过程中,主要是依靠物理学中的电磁感应原理使系统中的机械能转化为电能,而一旦电磁场出现失磁现象,就会使发电系统失衡,进而对整个发电机组造成危害,因此,在发电机出现失磁现象后对其进行正确的失磁故障判定进而有效排除失磁问题是保证水力发电机组正常运行的前提条件。文章对于发电机失磁现象产生的原因以及解决方法做出了系统分析,旨在最大限度的降低失磁现象对发电机正常运行的干扰,提高水力发电机的发电效能。
During operation, hydroelectric generator relies mainly on the principle of electromagnetic induction in physics to convert the mechanical energy in the system into electrical energy. Once the electromagnetic field demagnetization occurs, the imbalance of the power generation system will be caused and the entire generating set will be harmed. Therefore, it is a precondition to ensure the normal operation of hydroelectric generating set that the correct demagnetization fault judgment after the generator demagnetization phenomenon and thus effectively eliminate the demagnetization problem. The article makes a systematic analysis of the causes and solutions of the loss of generator magnetism, and aims to minimize the disturbance of the loss of excitation phenomenon to the normal operation of the generator and improve the power generation efficiency of the hydroelectric generator.