发明名称 |
METHOD FOR DETERMINING ELECTROMAGNETIC TIME CONSTANT OF SQUIRREL-CAGE ROTOR OF ASYNCHRONOUS MOTOR |
摘要 |
FIELD: electricity. ^ SUBSTANCE: in method for determining electromagnetic time constant of squirrel-cage rotor of asynchronous motor with rotor (ADKR), in order to determine current value of electromagnetic time constant of rotor, to the computing device there entered are design parametres of ADKR in the form of active resistance of stator winding and inductivity of magnetisation circuit, leakage coefficients of magnetic flows of stator and rotor in terms of stator current. During the process, there entered is information on the value of phase current and voltage and on phase displacement angle between voltage and current of stator winding. By means of computing device there determined is electromagnetic time constant of rotor by mathematical formula which is specified in application materials and which includes all the required parameters available for direct measurement in any ADKR mode. ^ EFFECT: providing economical and steady operation of variable-frequency electric drive on the basis of asynchronous motor with squirrel-cage rotor. ^ 1 dwg |
申请公布号 |
RU2374752(C1) |
申请公布日期 |
2009.11.27 |
申请号 |
RU20080109289 |
申请日期 |
2008.03.11 |
申请人 |
OTKRYTOE AKTSIONERNOE OBSHCHESTVO "VSEROSSIJSKIJ NAUCHNO-ISSLEDOVATEL'SKIJ I PROEKTNO-KONSTRUKTORSKIJ INSTITUT EHLEKTROVOZOSTROENIJA" (OAO "VEHLNII") |
发明人 |
VOL'VICH ANATOLIJ GEORGIEVICH;ORLOV JURIJ ALEKSEEVICH;TARGONSKIJ IGOR' LJUDVIGOVICH;SHCHERBAKOV VIKTOR GAVRILOVICH |
分类号 |
G01R27/02;G01R31/34;H02P21/14;H02P23/14 |
主分类号 |
G01R27/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|