A Modified Power Flow Tracing Method for Voltage Impact Mitigation in a Local Energy Market

With the increasing number of solar photovoltaic rooftop systems, consumers have changed their role to become prosumers, trading electricity with one another in a local energy market (LEM). The technical challenges arise in maintaining voltage quality at acceptable levels within distribution systems with LEMs. Existing methods, such as distribution locational marginal price and estimation-based methods, have limitations in terms of calculation time and accuracy. For this reason, this paper proposes a modified power flow tracing (PFT) method for mitigating the voltage impact in the context of the LEM. The proposed method leverages the advantages of the PFT method to quantify and manage trading power, considering fairness among participants. By employing linear equation-based analysis, the method can reduce the calculation time while enhancing accuracy in addressing the voltage impact. Furthermore, this paper presents the Bialek's PFT method, outlines the modified approach, discusses simulation results, and contributes a practical solution for effectively managing the voltage impact in distribution systems with LEMs. This paves the way for more environmentally friendly and efficient energy trading practices.