On zeros of sampled-data system with relative degree two

4Citations
Citations of this article
3Readers
Mendeley users who have this article in their library.

Abstract

Unstable zeros limit the achievable control performance. When a continuous-time system with relative degree greater than or equal to three is discretized using a zero-order hold, at least one of the zeros of the resulting sampled-data model is unstable for small sampling periods. Thus, attention is here focused on continuous-time systems with relative degree equal to two. This paper analyzes the zeros of the sampled-data models corresponding to the continuous-time systems mentioned above and gives approximate expressions of the zeros in the form of a power series expansions up to the fourth order term of sampling period. Meanwhile, the stability of the zeros is discussed for small sampling periods and a new stability condition is derived. It is further extension of the previous result. © 2011 Intl Journal of Adv Mechatr.

Cite

CITATION STYLE

APA

Liang, S., Ishitobi, M., Koga, T., & Kunimatsu, S. (2011). On zeros of sampled-data system with relative degree two. In 2011 International Conference on Advanced Mechatronic Systems, ICAMechS 2011 - Final Program (pp. 67–71).

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free