A novel single loop control structure for standalone inverter with multi loop harmonic compensation

In this paper, a new control structure for standalone inverter with multi loop harmonic compensation capability is presented. In this method, voltage harmonics are eliminated with a single loop and only one control variable. The proposed method has several advantages such as lack of Park transformation and tuning of several control parameters. It can also be implemented with lower computational burden, less complexity and easier tuning. Simulation results indicate results within standard limits with reduced computation burden compared to conventional multi loop synchronous frame PI harmonic controller.