Control of Grid Connected Converter (GCC) Under Grid Voltage Disturbances

摘要: In this chapter operation of a reliable control method Grid Connected Converter (GCC) under grid voltage disturbances is presented. As GCC authors understand power electronic AC-DC converter with AC side filter and DC-link capacitor operating as an interface between the electrical Active Loads (AL). At beginning short introduction to selected given. Afterwards, chosen modeling approach discussed example passive components calculation are provided. next sections brief review basic methods described. A method: Direct Power Control Space Vector Modulation (DPC-SVM) for further development process. For scheme DPC-SVM special modules dips higher harmonics compensation Due new its integration classical (robust such dips, harmonics) proposed: Robust (RDPC-SVM). The term “robust” in name proposed refers fact that RDPC-SVM expected operate uncertain environment respect system dynamics. This can assure sinusoidal like balanced current extremely distorted voltage. Based on case study from series 5–400 kVA Voltage Source Converters (VSCs) it was verified dynamic features fulfill requirements currents distortions. Moreover, quality significantly improved comparison methods. Hence, negative impact (through inner impendence) reduced i.e.: lower Total Harmonics Distortion (THD) factor current, active reactive flow good even increased impedance within limits.