Periodic Switched Control of Dual-Rate Sampled-Data Systems
This paper is concerned with the periodic switched control of a linear dual-rate sampled-data system. The state variables of the continuous-time plant are sampled by two types of sensors. The ratio of two sampling rates is assumed to be a rational number. Depending on whether the sampled-data of sta...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Hindawi Limited
2015-01-01
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| Series: | Mathematical Problems in Engineering |
| Online Access: | http://dx.doi.org/10.1155/2015/515232 |
| Summary: | This paper is concerned with the periodic switched control of a linear dual-rate sampled-data system. The state
variables of the continuous-time plant are sampled by two types of sensors. The ratio of two sampling rates is assumed
to be a rational number. Depending on whether the sampled-data of state variables at two sampling rates is available
simultaneously or separately, a periodic switched controller is constructed. Applying an input delay approach, the
closed-loop system is modeled as a switched system with subsystems having different input delays. Some delay-dependent
criteria for the H∞ performance of the switched system and the existence of the switched controller are
derived by employing a Lyapunov-Krasovskii functional that includes information about two sampling periods. The
dual-rate sampled-data control of a vehicle dynamic system is given to show that the proposed method is effective and
it can achieve a better H∞ control performance than the single-rate design method. |
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| ISSN: | 1024-123X 1563-5147 |