List of English Publication

@article{KimShimSeo19,

title = {State Estimation and Tracking Control for Hybrid Systems by Gluing the Domains},

author = {Jisu Kim and Hyungbo Shim and Jin Heon Seo},

url = {https://arxiv.org/abs/1810.04404},

doi = {10.1109/TAC.2018.2876784},

year  = {2019},

date = {2019-07-01},

journal = {IEEE Transactions on Automatic Control},

abstract = {We study the design problems of state observers and tracking controllers for a class of hybrid systems whose state jumps. The idea is to utilize the well-known method of gluing the jump set (a part of domain where the jumps take place) onto its image, which converts the hybrid system into a continuous-time system whose state does not jump. Sufficient conditions for this idea to be implemented are listed and discussed with a few concrete examples. In particular, we present a structural condition for an observer design, and, for tracking control, we introduce a feedback to compensate residual discontinuity in the vector field after gluing. The benefits of the proposed approach include that the observer design does not require detection of the state jumps, and that the tracking control does not require the plant state jumps when the reference jumps.},

keywords = {Hybrid system, Observer, Tracking},

pubstate = {published},

tppubtype = {article}

}

@article{OhKimShim15,

title = {Observer-based Feedback Controller Design for Robust Tracking  of Discrete-time Polytopic Uncertain LTI Systems},

author = {Sangrok Oh and Jung-Su Kim and Hyungbo Shim},

doi = {10.5370/JEET.2015.10.6.2427},

year  = {2015},

date = {2015-11-01},

journal = {Journal of Electrical Engineering and Technology},

volume = {10},

number = {6},

pages = {2427-2433},

abstract = { This paper presents an observer–based robust controller for constant reference tracking of linear time invariant systems with polytopic model uncertainties. To this end, this paper not only designs a robust integral controller gain but also suggests how to determine the robust observer gain and the observer model used in the observer. Since the observer model selection is not obvious due to the polytopic uncertainties, particular attention needs to be paid to that. This paper computes the robust controller and observer gains first. Then, the observer model is selected in a way that the whole closedloop is stable and LMIs are used in the middle of choosing the gains and observer model. Simulation examples show that the proposed observer-based feedback control successfully achieves robust reference tracking. },

keywords = {Tracking},

pubstate = {published},

tppubtype = {article}

}