An adaptive Power Flow Controller with Noise suppression capability for a modified Dual Active Bridge Converter for Battery Storage Integration

This paper proposes an adaptive power flow controller for a modified dual active bridge based DC-DC converter. The power flow controller uses a modified model reference adaptive control technique which is capable of handling measurement noise present in the system due to sensor problems. The proposed controller uses a filtered state feedback to suppress the effect of measurement noise on the dynamic uncertain system. The controller consist of an expanded reference model, filter bandwidth parameter, unknown weight vector and controller gains. Additionally a droop based reference generator is also used for improved performance. A stability analysis is carried out prove the feasibility of the proposed power flow controller. Finally, the converter system along with the proposed power flow controller with noise suppressing capability is simulated in MATLAB/SIMULINK environment and its performance is verified both in presence and absence of measurement noise to prove its applicability.