Control of a Single Phase Inverter in DQ Rotating Frame by Pole Placement Strategy for Stand - Alone Application

Control of a Single Phase Inverter in DQ Rotating Frame by Pole Placement Strategy for Stand - Alone Application

Abstract— In this paper, a pole placement control strategy by state feedback in DQ rotating frame is proposed for a single phase inverter. Classic controllers such as PI controller have been widely used in papers dealing with single phase inverters. Some disadvantages of such a controller are incapability of precise tuning of transient response and inflexibility during disturbances. Pole placement control strategy by state feedback can overcome the above drawbacks. In this strategy the location of poles can be easily selected based on the values of state feedback gain matrix, leading to the improvement of the system transient response. Furthermore, an integrator is also applied to improve the steady state operation of the system. Finally, a self-tuner controller is implemented to reject any disturbances. Good performance of the proposed controller is verified through simulation in MATLAB/SIMULINK.