Harmonic Control Arrays Method

The Harmonic Control Arrays (HCA) is a novel method for control systems with periodic reference or disturbance signals like harmonic control in power systems. The HCA framework provides flawless periodic reference tracking and disturbance rejection by automatically constructing the compensating periodic control signal. The HCA uses the running Fourier series integral in its complex nature to efficiently retrieve the harmonic components of the real-time error signal in a unitary feedback system structure. Then, these complex signals for each harmonic frequency are controlled separately by a controller working in the complex domain and in real time. It was recently demonstrated that the Harmonic Control Array (HCA) method is a successful control strategy for systems with periodic references or disturbances, including power electronics applications. HCA is an effective, easy, and robust tool for the control problems in clean energy systems.