A newly built power flow program in PSCAD/EMTDC for electric power system studies

The power flow computation consists of imposing specified power and voltage input conditions to a power network and producing the complete voltage information at all the system buses. The calculation is required for both the steady state analysis and the dynamic performance evaluation of power systems. It is also used to initialize other computer-aided power system software. This paper presents a novel production grade power flow program that performs the power flow computations of modern electric power systems efficiently and accurately. The new program is capable of providing the power flow information of independent subsystems simultaneously. It has a powerful feature of changing the power levels of generators and loads locally or globally in power systems. The paper also describes the under going integration and initialization of the well-known system simulation software PSCAD/EMTDC with the power flow program.