H∞ strong stabilization via HIFOO, a package for fixed-order controller design

We report on our experience with strong stabilization using HIFOO, a toolbox for H^∞ fixed-order controller design. We applied HIFOO to 21 fixed-order stable H^∞ controller design problems in the literature, comparing the results with those published for other methods. The results show that HIFOO often achieves good H^∞ performance with low-order stable controllers, unlike other methods in the literature.