# Nonlinear $\mathcal {H}_2$ Control for a Nonlinear System With Bounded Varying Parameters: Application to PM Stepper Motors

@article{Lee2017Nonlinear,
title={Nonlinear \$\mathcal \{H\}_2\$ Control for a Nonlinear System With Bounded Varying Parameters: Application to PM Stepper Motors},
author={Youngwoo Lee and Donghoon Shin and Wonhee Kim and Chung Choo Chung},
journal={IEEE/ASME Transactions on Mechatronics},
year={2017},
volume={22},
pages={1349-1359}
}
We have designed a nonlinear <inline-formula><tex-math notation="LaTeX">$\mathcal {H}_2$</tex-math></inline-formula> controller for permanent magnet stepper motors. The proposed method consists of a new torque modulation scheme, a passive nonlinear observer, and a nonlinear <inline-formula><tex-math notation="LaTeX">$\mathcal {H}_2$</tex-math> </inline… CONTINUE READING