The loss analysis and research of power plant´s Connecting Transformer

Now, with China´s power reform and the gradual formation of the electricity market, how to reduce the power losses and how to implement the economic operation are the responses to the electricity market bidding problem without delay. This study aimed to reduce transformer loss of power companies. This paper studies how the power system analysis and control operating of the Connecting Transformer (CT), the application of advanced control methods to adjust the output power of power plants to reduce contact the transformer active power and reactive power losses. Studying and learning from the idea of rapid decomposition, research will be divided into two steps to implement control strategies, namely, the first node to adjust active power generator, used to adjust the contact of the active power transformer, thereby reducing contact the transformer power loss; followed by adjustment of generator terminal voltage or reactive power, used to adjust the voltage across the contact transformer reactive power flow in order to reduce losses. At the same time with the actual operation data of the Northeast power grid, computer simulation studies, simulation results verify the effectiveness of the proposed control law.