Interline Power Flow Controller (IPFC) is one of seriesseries controlled Flexible Alternating Current Transmission System (FACTS) devices, which has the capability of controlling the power flow in multi transmission lines. In this paper, Power Injection Model (PIM) is proposed by using voltage source converters (VSCs). The proposed model is incorporated in Newton-Raphson (NR) power flow solution method and analyzed with a MATLAB program. A study on variation of power flow, bus voltages in all transmission lines and buses for different values of IPFC parameters has been carried out on standard 2 machine 5 bus system.