Limit cycles analysis of reset control systems with reset band |
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Authors: | Alfonso Baños Sebastián Dormido Antonio Barreiro |
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Institution: | 1. Dpt. Informática y Sistemas, Univ. Murcia, 30071 Murcia, Spain;2. Dpt. Informática y Automática, U.N.E.D., 28040 Madrid, Spain;3. Dpt. Ingeniería de Sistemas y Automática, Univ. Vigo, 36200 Vigo, Spain |
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Abstract: | The reset band is a simple idea, and a must in practice, to improve reset compensation by adding extra phase lead in a feedback loop. However, a formal treatment of how the reset band can affect stability and performance of a reset control system is still an open issue. This work approaches the problem of the existence and stability of limit cycles of reset control systems with reset band. A frequency domain approach is given by using standard methods based on the describing function. In addition, closed-form expressions have been obtained for the describing function of arbitrary order full reset compensators with and without reset band. |
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