Modelling PV Impact on Energy Loss in Local MV Grid

Abstract

This paper presents a model to simulate grid energy loss with distributed renewable energy sources based on grid load profile measurements. The characteristics of distribution grid energy loss under actual load profiles and PV generating on the grid are studied. The studies have shown that using the maximum values of the load powers and power outputs of energy sources for calculating energy loss leads to significant errors. Simulating power flow in the example distribution grid using the measured load profiles and time characteristics of PV and HPP outputs is carried out to show their impact on grid power loss in possible exploitative conditions.