Abstract
We studied internal stabilization of linear systems subject to actuator magnitude saturation in Chap. 4, and the same in Chap. 6, however, when the actuator is subject to both magnitude and rate saturation. The block diagram of Fig. 10.1 depicts the setup. Although such actuator saturation occurs ubiquitously, in this chapter we consider a broader class of nonlinear systems than that depicted in Fig. 10.1. As pointed out in Chap. 1, an important and common paradigm of nonlinear systems is that they are indeed linear systems in which nonlinear elements are sandwiched or embedded as shown in Fig. 10.2. A model of a common nonlinear element is a static nonlinearity followed by a linear system or vice-versa. In either case, the block diagram of Fig. 10.2 depicts a commonly prevailing situation besides linear systems subject to merely actuator saturation.
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Saberi, A., Stoorvogel, A.A., Sannuti, P. (2012). Sandwich systems: state feedback. In: Internal and External Stabilization of Linear Systems with Constraints. Systems & Control: Foundations & Applications. Birkhäuser, Boston, MA. https://doi.org/10.1007/978-0-8176-4787-2_10
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