Fuzzy PI Controller for Back-to-Back Converter in Multi Frequency System for Loss Minimization

The objective of this study is to mitigate losses in low-frequency transmission lines through the implementation of multi-frequency control (MFC) techniques. A Back-to-Back Converter employs a fuzzy-based PI Controller to regulate a low-frequency Hvac transmission line. Multi-frequency systems employ a variety of frequencies, buses, and architectures. The solution for optimal power flow with loss minimization is achieved. In the idle mode of BTB converters, the estimation of load power flow is performed while ensuring voltage stability. The simulation of power flow solutions is accomplished through the utilization of the Newton-Raphson technique. This technique considers all converter constraints. A comparative analysis is conducted on the efficiency, optimal frequency, and voltage stability of the proposed system. The load flow technique and simulation models, which consist of back-to-back converters and ac/dc/ac converters, are utilized to obtain the system findings. The proposed model has been developed using MATLAB software.