An Approach to Compute Low-Order H∞ Controllers

2019 Studies in Informatics and Control  
If H ∞ control laws are built on high-order models, then reduced computational speed and memory problems are likely to arise. This article proposes an algorithm for computing H ∞ controllers which is similar to the Matlab procedure hinfsyn.m, but of low order. The method consists in introducing dependencies between the differential equations of the controller by means of a rank minimisation problem. As a consequence, all differential equations of the controller are expressed as a linear
more » ... ion of a smaller number of differential equations. Redundant states are then removed.
doi:10.24846/v28i4y201905 fatcat:dbzqgyrwsnh2lesadsepjoxn6e