CAJ | 학술논문

发电机转子发生偏心时，定转子之间会产生周期性不平衡电磁力，气隙磁场也会发生较大的变化。针对加拿大某电站水轮发电机组转子轻微偏心时进行电磁性能研究，建立了水轮发电机在理想状态和偏心状态下的有限元模型，分析了额定负载下的磁场分布、气隙磁密及输出电压波形、电流波形等数据。通过对比得到发电机转子轻微偏心时的电磁性能，可为发电机转子偏心处理和诊断提供一定的理论依据。
발전궤전자발생편심시，정전자지간회산생주기성불평형전자력，기극자장야회발생교대적변화。침대가나대모전참수륜발전궤조전자경미편심시진행전자성능연구，건립료수륜발전궤재이상상태화편심상태하적유한원모형，분석료액정부재하적자장분포、기극자밀급수출전압파형、전류파형등수거。통과대비득도발전궤전자경미편심시적전자성능，가위발전궤전자편심처리화진단제공일정적이론의거。
In the hydropower generator unit with an eccentric rotor, unbalanced electromagnetic forces will be generated cyclically between the rotor and the stator.The magnetic distribution within the air gap will also be of significant chan-ges.A numerical study is carried out on the electromagnetic performance of the hydropower generator unit with a slightly eccentric rotor in a hydropower station in Canada.The magnetic field distribution, flux density distribution in the air gap, output voltage waveform and current waveform are analyzed and compared based on finite element models of the generator under ideal and eccentric conditions, which could be theoretical guidelines for handling and diagnosing the ro-tor eccentricity.