HVDC bidirectional power flow using solid state transformer

With the development of a hybrid system, flexible AC transmission system (FACTS) and high voltage direct current (HVDC) system are using to provide the control technique in the hybrid power system. In distributed power generation systems, the DC networks have more importance to handle the problem related to the DC power flow control in DC networks. Interline Power Flow Controller (IPFC) is a FACTS device used to control power flow in multi-line and parallel transmission lines. In this paper, a new topology has been proposed to control DC power flow through an Interline DC Power flow controller (IDCPFC) with Solid State Transformer (SST). In the proposed method, the boost converter is used to achieve increased output voltage from the input voltage and its current is regulated through the duty cycle of the converter. The control algorithm of the proposed technique is smooth and easy to deploy. To justify the topology, simulation results of proposed topology are investigated in this paper through the Simulink.