An improved stator flux estimation in steady-state operation for direct torque control of induction machines
This paper presents an improved stator flux estimation technique based on a voltage model with some form of low-pass (LP) filtering. In voltage-model-based stator flux estimation, an LP filter is normally used instead of a pure integrator to avoid integration drift problem due to DC offset, noise, o...
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| Format: | Article |
| Language: | English |
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IEEE
2002
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| Online Access: | http://eprints.utm.my/1889/1/00980364_IR14.pdf |
| _version_ | 1825909143550033920 |
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| author | Idris, N. R. N. Yatim, A. H. M. |
| author_facet | Idris, N. R. N. Yatim, A. H. M. |
| author_sort | Idris, N. R. N. |
| collection | ePrints |
| description | This paper presents an improved stator flux estimation technique based on a voltage model with some form of low-pass (LP) filtering. In voltage-model-based stator flux estimation, an LP filter is normally used instead of a pure integrator to avoid integration drift problem due to DC offset, noise, or measurement error present in the back electromotive force. In steady-state condition, the LP filter estimator will degrade the performance and efficiency of the direct torque control (DTC) drive system since it introduced magnitude and phase errors, thus resulting in an incorrect voltage vector selection. The stator flux steady-state error between the LP filter and a pure integrator estimator technique is derived and its effect on the steady-state DTC drive performance is analyzed. A simple method is proposed to compensate for this error which results in a significant improvement in the steady-state drive performance. Simulation based on this technique is given and it is verified by experimental results
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| first_indexed | 2024-03-05T17:57:48Z |
| format | Article |
| id | utm.eprints-1889 |
| institution | Universiti Teknologi Malaysia - ePrints |
| language | English |
| last_indexed | 2024-03-05T17:57:48Z |
| publishDate | 2002 |
| publisher | IEEE |
| record_format | dspace |
| spelling | utm.eprints-18892017-05-02T06:35:54Z http://eprints.utm.my/1889/ An improved stator flux estimation in steady-state operation for direct torque control of induction machines Idris, N. R. N. Yatim, A. H. M. TK Electrical engineering. Electronics Nuclear engineering This paper presents an improved stator flux estimation technique based on a voltage model with some form of low-pass (LP) filtering. In voltage-model-based stator flux estimation, an LP filter is normally used instead of a pure integrator to avoid integration drift problem due to DC offset, noise, or measurement error present in the back electromotive force. In steady-state condition, the LP filter estimator will degrade the performance and efficiency of the direct torque control (DTC) drive system since it introduced magnitude and phase errors, thus resulting in an incorrect voltage vector selection. The stator flux steady-state error between the LP filter and a pure integrator estimator technique is derived and its effect on the steady-state DTC drive performance is analyzed. A simple method is proposed to compensate for this error which results in a significant improvement in the steady-state drive performance. Simulation based on this technique is given and it is verified by experimental results IEEE 2002-01 Article PeerReviewed application/pdf en http://eprints.utm.my/1889/1/00980364_IR14.pdf Idris, N. R. N. and Yatim, A. H. M. (2002) An improved stator flux estimation in steady-state operation for direct torque control of induction machines. IEEE Transactions on, Industry Applications, 38 (1). 110 -116. ISSN 0093-9994 10.1109/28.980364 |
| spellingShingle | TK Electrical engineering. Electronics Nuclear engineering Idris, N. R. N. Yatim, A. H. M. An improved stator flux estimation in steady-state operation for direct torque control of induction machines |
| title | An improved stator flux estimation in steady-state operation for direct torque control of induction machines
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| title_full | An improved stator flux estimation in steady-state operation for direct torque control of induction machines
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| title_fullStr | An improved stator flux estimation in steady-state operation for direct torque control of induction machines
|
| title_full_unstemmed | An improved stator flux estimation in steady-state operation for direct torque control of induction machines
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| title_short | An improved stator flux estimation in steady-state operation for direct torque control of induction machines
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| title_sort | improved stator flux estimation in steady state operation for direct torque control of induction machines |
| topic | TK Electrical engineering. Electronics Nuclear engineering |
| url | http://eprints.utm.my/1889/1/00980364_IR14.pdf |
| work_keys_str_mv | AT idrisnrn animprovedstatorfluxestimationinsteadystateoperationfordirecttorquecontrolofinductionmachines AT yatimahm animprovedstatorfluxestimationinsteadystateoperationfordirecttorquecontrolofinductionmachines AT idrisnrn improvedstatorfluxestimationinsteadystateoperationfordirecttorquecontrolofinductionmachines AT yatimahm improvedstatorfluxestimationinsteadystateoperationfordirecttorquecontrolofinductionmachines |