ABSTRACT
This chapter presents a DSTATCOM implemented with a Cascade Asymmetric Multilevel Converter (CAMC). It obtains a dynamic model of the CAMC, in order to be used in the control of the active and reactive currents of the converter. The amount of current delivered by the DSTATCOM is determined by the voltage at the point of common coupling, the voltage generated by the converter, and the coupling impedance: The voltage difference is applied on the inductor, fixing the current I AC. Assuming that the voltage is imposed by the infinite power source, the reactive power delivered by the DSTATCOM is given by then, the reactive power control is carried out regulating the amplitude of V AC. It is well known that a three-phase system in phase coordinates is strongly coupled, so it is more convenient to transform the representation into a synchronous reference frame in order to properly design the control of the DSTATCOM.
