Globoidal cam indexing servo drive control by IVSMFC with load torque estimator
| Autor: | Der-Min Tsay, Geeng-Kwei Chang, Tzuen-Lih Chern |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Engineering
business.industry Estimation theory media_common.quotation_subject Estimator Servomotor Inertia Industrial and Manufacturing Engineering Control and Systems Engineering Control theory Robustness (computer science) Servo drive Torque Electrical and Electronic Engineering business media_common Machine control |
| Zdroj: | IEEE Transactions on Industry Applications. 38:1326-1333 |
| ISSN: | 0093-9994 |
| DOI: | 10.1109/tia.2002.802895 |
| Popis: | This paper introduces an integral variable-structure model-following control (IVSMFC) incorporated with a load torque estimator based on variable-structure technique for a globoidal cam indexing system. IVSMFC features excellent robustness and performance properties under certain disturbances and parameter variations. However, heavy time-varying load may influence expected performance. In a cam system, when it is in motion, the load produced by inertia forces deflects the driving motor speed and, as a result, degrades the indexing precision. To fulfill the constant driving speed assumption, a load torque estimator is employed and fed forward to compensate the load torque variations. A digital-signal-processor-based globoidal cam indexing servo drive is presented and the experimental results show the effectiveness of the proposed scheme. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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