This paper deals with the direct solution of the pole placement problem for single-input linear systems using proportional-derivative (PD) state feedback. This problem is always solvable for any controllable system. The explicit parametric expressions for the feedback gain controllers are derived which describe the available degrees of freedom offered by PD state feedback. These freedoms are utilized to obtain closed-loop systems with small gains. Its derivation is based on the transformation of linear system into control canonical form by a special coordinate transformation. The solving procedure results into a formula similar to Ackermann’s one. In the present work, both time-invariant and time-varying linear systems are treated. The effectiveness of the proposed method is demonstrated by the simulation examples of both time-invariant and time-varying systems.
Pole Placement for Single-Input Linear System by Proportional-Derivative State Feedback
Contributed by the Dynamic Systems Division of ASME for publication in the JOURNAL OF DYNAMIC SYSTEMS, MEASUREMENT, AND CONTROL. Manuscript received April 3, 2014; final manuscript received September 28, 2014; published online November 7, 2014. Assoc. Editor: M. Porfiri.
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Abdelaziz, T. H. S. (April 1, 2015). "Pole Placement for Single-Input Linear System by Proportional-Derivative State Feedback." ASME. J. Dyn. Sys., Meas., Control. April 2015; 137(4): 041015. https://doi.org/10.1115/1.4028713
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