A study of shunt active power filter based on modular multilevel converter (MMC)

This paper presents a study of a shunt active power filter based on the modular multilevel converter (MMC) topology. The current controller of the shunt active power filter uses a PI-MRI (PI with multi reference frame integrators) technique to assure that the APF current tracks the reference signal. It is also investigated the performance of the method of selection and classification used to choose and to control which submodule (SM) of the MMC will become active. Simulation results will be used to evaluate and to demonstrate the behavior of MMC as active power filter.