This chapter discusses adaptive control based on control at individual harmonics for cancellation of periodic disturbances. It is shown that the original idea, which has been around for a long time, can be developed much further to produce robust and highly adaptable controllers. First, a review is given of the most accessible literature, after which frequency-selective RLS and LMS methods are presented. Simulations illustrate the effectiveness of the method.

Inspec keywords: tuning; adaptive control; least mean squares methods

Other keywords: adaptive harmonic control; tuning; periodic disturbance cancellation; frequency-selective RLS; adaptable controller; frequency domain; LMS method

Subjects: Self-adjusting control systems