Smith联接的单相自励感应发电机.pdfVIP

《电机与控制应用》2005，32(7) smith联接的单相自励感应发电机 ∥鹋。。娜啦唧 避嬲 Smith联接的单相自励感应发电机 孙雨萍， 李光友， 张进 (山东大学，济南250061) 摘要：针对需要单相电源的场合时有采用三相异步电机自动单相运行这种工况，对自励发电运行方式 进行了分析。利用对称分量法导出了smith联接的单相自励感应发电机对称运行条件及性能计算公式。计 算表明：smith联接的三相感应电机单相自励发电运行时，电压变化率较大，且离开平衡点负序电流迅速增加； 利用最优化方法确定三相自励感应发电机不对称运行时的稳态工作点简单有效。实验结果与理论计算基本 一致。 关键词：Smith联接；感应发电机；自励；单相运行 Self—excitedInductionGeneratorwithSmithConnection Single·phase zHANG sUN J讯 Yu—p漉g，LItj|Gng-you， (Shandonguniv．，Jinan250061，China) Abstract：When atthe automatic needingsingle—phasepowersupply，aiming single—phase opemtionworking conditionof induction self-excited modewas three—phase generator，the genemtoroperation analyzed．Usingsymmetri— method，the conditionand fomulaof sem cal—component symmetricaloperation perfo珊ancecalculating sin出e—phase excitedinduction withSmithconnectionwerederived．Theresultof indicatesthatthe generator computation voltage rate it at variationoftheSmith—connection—threeinduction phmse motro，whenoperatessinde—phmse·self．excited gen— its currentwillincrease The deternlination，via eratingstate，islarge，andnegativesequence surprisingly． optimiga— tion thestatic ofthe induction it at method，of motor，when opemtingpoint three—phase—self_excited operatesasyn— chmnous efkctive．There