Interpolated Average Value Model of Voltage Source Converter for Real-Time Simulation

Voltage source converter (VSC) is being widely applied in power systems due to the development of renewable energies. Electromagnetic transient simulation can describe the dynamic characteristics of power systems with high penetration of power electronics more accurately than electromechanical transient simulation. In this paper, a VSC modeling method based on interpolated average value model (AVM) is proposed to realize the efficient and accurate modeling of different VSC topologies. The high precision simulation of VSC system is realized by interpolation of switching function combined with the AVM. The proposed modeling method can effectively improve the accuracy of VSC simulation with a large simulation step. The performance of the proposed method is validated by simulation and compared with a detailed model as the reference.