In Search of Weaker Conditions to Insure Robust Stability in Linear Feedback Systems
1991 ◽
Vol 113
(1)
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pp. 168-170
Keyword(s):
This paper is concerned with the well-known condition for robust stability of systems with plant uncertainty. It is shown that the usual sufficient condition for robust stability, given in terms of the maximum modulus of the plant approximation error, can be relaxed to a sector condition. This sector condition, related to the phase of the uncertain portion of the plant, can increase the range of the allowed variations in the parameters of the uncertain plant sufficient for robust stability.
1982 ◽
Vol 35
(2)
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pp. 255-267
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2018 ◽
Vol 11
(3)
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pp. 844-868
2003 ◽
Vol 48
(8)
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pp. 1312-1319
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1956 ◽
Vol 103
(10)
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pp. 463-473
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1961 ◽
Vol 79
(6)
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pp. 527-538
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1975 ◽
Vol 20
(4)
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pp. 454-464
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1963 ◽
Vol 1
(2)
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pp. 100-107
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