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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