Loss Calculation of Single Power Supply to Single Load Based on Power Component Theory

Abstract

Abstract To calculate the loss in each power supply supplying power to different loads in a multi-power supply system, this paper proposes a complex proportional relationship between the power supply loss in the power transmission process to a specific load and the power injected by the power supply. And based on the circuit theory, the theoretical derivation is carried out. According to the known power flow results, this method uses the power component theory to track the network power flow forward and backward to construct a single power supply to a single load power supply network. It then scientifically strips out the loss of a single power supply to a single load power supply from the total loss and its complex proportional relationship to the power generation. The derivation process satisfies the classical circuit theory and does not introduce too many assumptions. While ensuring accuracy, it makes up for the lack of physical meaning of the previous network loss calculation methods. It provides a physical basis for formulating more economical scheduling schemes and promoting fair trading in the transmission market. The method is applied to a 7-node distribution network system, and the results confirm the correctness and effectiveness of the model.