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THE INFLUENCE OF THE DYNAMIC CONTROL ERROR OF THE STATOR CURRENT ON THE VALUE OF THE ROTOR FLUX IN THE INDIRECT FIELD ORIENTED AC DRIVES
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| Author(s) |
M. Dubowski; T. Citko |
| Abstract |
It is well known that the main disadvantage of the indirect method of vector control of the induction motor is its sensitivity to the changes of the rotor resistance. Accurate investigations shown that there also exist another disadvantage of the same importance, i.e. drive sensitivity to the dynamic errors of the stator current control loop. The main danger caused by this phenomenon (like as the changes of rotor resistance) is the increase of the value of the rotor flux . This effect may be significant particulary when the over-current occurs. The drive systems of the machine-tools are especially exposed to this negative phenomenon. In this paper, a method of the estimation of the flux increase and proposition of apropriate countermeasurements are presented. |
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| Filename: | Unnamed file |
| Filesize: | 1.66 MB |
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| Type |
Members Only |
| Date |
Last modified 2019-08-13 by System |
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