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PROCEDURE FOR HIGH FREQUENCY NO-LOAD LOSSES MEASUREMENT AND HIGH FREQUENCYLOAD LOSSES MEASUREMENT IN INDUCTION MOTORS
PROCEDURE FOR HIGH FREQUENCY NO-LOAD LOSSES MEASUREMENT AND HIGH FREQUENCYLOAD LOSSES MEASUREMENT IN INDUCTION MOTORS
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机译：感应电动机的高频率空载损耗测量和高频率损耗测量的程序
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摘要
Hereby explained is a possibility to leave out a examination of sub synchronous and super asynchronous revolvement of motors, when needed to set only a component of high frequency loss in idle motion due to higher spatial harmonics of MMF stator (PHF, f0n ). Thereby, a simplified procedure for separation of the component (PHF, f0n ) of high frequency loss of idle motion is drawn to the known examination of motor in idle motion (1,2,3), along with additional measuring of motor sliding by means of stroboscopic method. It proves that there is a possibility to set value of coefficient of saturation for higher harmonics (Ksh) based on the results for measuring according to the simplified procedure. Value of high frequency loss in load (PHF, fn) in a rotor of asynchronous machine in nominal mode, that matches to the component of load current be calculated by means of PHF, fn = PHF, f0n ú I2fn-I20)/ I20, where PHF, f0n - of the value of the component of high frequency loss in idle motion at nominal voltage having been ahead determined.;Pokazano je da je mogue izostaviti ogled podsinhronog i nadsinhronog obrtanja motora, kada je potrebno da se odredi samo komponenta visokofrekventnih gubitaka prazngo hoda zbog viih prostornih harmonika MMF statora (PHF, f0n). Time se pojednostavljeni postupak za izdvajanje komponente (PHF, f0n) visokofrekventnih gubitaka praznog hoda svodi na poznato ispitivanje motora u praznom hodu [1,2,3], uz dodatno merenje klizanja motora pomou stroboskopske metode. Pokazuje se da postoji mogunost za odredjivanje vrednosti koeficijenta zasienja za vie harmonike (Ksh) na osnovu rezultata merenja po pojednostavljenom postupku. Vrednost visokofrekventnih gubitaka (PHF, f0n) u rotoru asinhrone maine u nominalnom reimu, koja odgovara vrednosti komponente struje optereenja , se moe sraunati pomou izraza PHF,fn = PHF, f0n = , gde je PHF, f0n - vrednosti komponente visokofrekventnih gubitaka praznog hoda pri nominalnom naponu koja je prethodno odredjena.[Hereby explained is a possibility to leave out a examination of sub synchronous and super asynchronous revolvement of motors, when needed to set only a component of high frequency loss in idle motion due to higher spatial harmonics of MMF stator (PHF, f0n ). Thereby, a simplified procedure for separation of the component (PHF, f0n ) of high frequency loss of idle motion is drawn to the known examination of motor in idle motion (1,2,3), along with additional measuring of motor sliding by means of stroboscopic method. It proves that there is a possibility to set value of coefficient of saturation for higher harmonics (Ksh) based on the results for measuring according to the simplified procedure. Value of high frequency loss in load (PHF, fn) in a rotor of asynchronous machine in nominal mode, that matches to the component of load current be calculated by means of PHF, fn = PHF, f0n Гє I2fn-I20)/ I20, where PHF, f0n - of the value of the component of high frequency loss in idle motion at nominal voltage having been ahead determined.
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机译：因此，在仅需要设置由于MMF定子的较高空间谐波（PHF，fn）而导致的空转中高频损耗的一部分时，可以忽略电动机的次同步和超异步旋转。从而，将用于分离怠速运动的高频损失的分量（PHF，f0n）的简化程序引入已知的怠速运动（1,2,3）中的电动机检查，以及通过频闪法。事实证明，根据简化程序的测量结果，可以为高次谐波（Ksh）设置饱和系数值。标称模式下异步电机转子中负载的高频损耗值（PHF，fn）与负载电流的分量相匹配，可通过PHF来计算，fn = PHF，f0núI2fn-I20）/ I20，其中PHF，f0n-提前确定了额定电压下怠速运动中的高频损耗的分量的值;; prazngo hoda zbog viih prostornih harmonika MMF定子（PHF，f0n）。时间（PHF，f0n）的邮寄时间（PHF，f0n）visokofrekventnih gubitaka praznog hoda svodi na poznato ispitivanje motora u praznom hodu [1,2,3]，和dodomkeou merenje klizaode motora。 Pokazuje se da postoji mogunost za odredjivanje vrednosti koeficijenta zasienja za vie harmonike（Ksh）na osnovu rezultata merenja po pojednostavljenom postupku。 Vrednost visokofrekventnih gubitaka（PHF，f0n）u转子u asinhrone Maine u标称符号reimu，koja odgovara vrednosti komponente struje optereenja，se moe sraunati pomou izraza PHF，fn = PHF，f0n vno-，gde fenda [据此解释，有可能省去对电动机的次同步和超异步旋转的研究，因为仅需要设置由于MMF定子的较高空间谐波而导致的空转中高频损耗的一部分。 （PHF，f0n）。从而，将用于分离怠速运动的高频损失的分量（PHF，f0n）的简化程序引入已知的怠速运动（1,2,3）中的电动机检查，以及通过频闪法。事实证明，根据简化过程的测量结果，可以为高次谐波（Ksh）设置饱和系数值。标称模式下异步电机转子中负载的高频损耗（PHF，fn）的值与负载电流的分量相匹配，可通过PHF来计算，fn = PHF，其中，预先确定了在额定电压下空转时高频损耗分量的值的PHF，f0n-。
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