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Feedforward into local loops of plant modifying cascaded feedback systems

 

作者: E. EITELBERG,  

 

期刊: International Journal of Control  (Taylor Available online 1991)
卷期: Volume 53, issue 6  

页码: 1467-1481

 

ISSN:0020-7179

 

年代: 1991

 

DOI:10.1080/00207179108953686

 

出版商: Taylor & Francis Group

 

数据来源: Taylor

 

摘要:

Horowitz and Wang (1979) have proposed a quantitative synthesis technique for plant modifying SISO feedback design. In essence, inner loops are designed to reduce ‘ ⃛feedback loop bandwidths and effect of sensor noise, at the cost of increase in plant internal signal levels.’ The major effort of this design goes into achieving ‘ ⃛desired trade-off between increased plant signal level and cost of feedback.’ In this paper it is shown that by a very simple use of available feedforward ‘degrees of freedom’, the above trade-off problem diminishes significantly for practically important classes of systems and the overall design simplifies considerably.

 

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