Stability Study of Pulse-width Modulated and Nonlinear Sampled-data Systems

Stability Study of Pulse-width Modulated and Nonlinear Sampled-data Systems
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Total Pages : 250
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ISBN-13 : UCAL:C2945752
ISBN-10 :
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Book Synopsis Stability Study of Pulse-width Modulated and Nonlinear Sampled-data Systems by : Toshimitsu Nishimura

Download or read book Stability Study of Pulse-width Modulated and Nonlinear Sampled-data Systems written by Toshimitsu Nishimura and published by . This book was released on 1961 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fundamental equation that describes limit cycles in nonlinear sampled-data systems was derived. The equivalence of limit cycles with finite pulsed systems having a periodically varying sampling-rate was observed, and the methods of analysis applied to the latter were extended to obtain these limit cycles with the aid of final value theorem. This fundamental equation is modified and simplified under certain assumptions as it can be applied to systems both with and without integrators. The limitation on the longest period of saturated and unsaturated oscillation is investigated and the critical gain for their existence is derived, starting from the modified fundamental equation. Also, the stability of limit cycles and the equilibrium point is considered, based on Neace's method. Various kinds of non-linearities, namely, pulse-width modulation, relay saturating amplifier with linear zone and quantized level amplifier are discussed. Self-excited oscillations are mainly examined, as well as the possible existence and stability of limit cycles, however, the method can be extended to forced oscillations.


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