Design and experimental validation of an artificial neural network-SVPWM controller for a novel micro grid-tied fuel cell-based 3-phase boost inverter

A Method to Improve Both Frequency Stability and Transient Stability of Virtual Synchronous Generators during Grid Faults

“…u and ug are the voltage of capacitance Cf and grid voltage, i is the output current of VSG, and Udc is the DC side voltage. The VSG model consists of the active power control loop (APCL) and the reactive power control loop (RPCL), as shown in Formulas ( 1) and ( 2 For the grid-connected converter topology in Figure 1, the specific topology type [32][33][34][35] can be selected according to the application scenarios requirements, such as a twolevel bridge or full-bridge circuit, three-level NPC circuit, three-level T-type circuit, or even other higher-level circuits, etc. In order to facilitate theoretical analysis and simplify controller design, this paper takes the two-level three-phase bridge converter topology as an example to research.…”

“…kq is the regulation coefficient. For the grid-connected converter topology in Figure 1, the specific topology type [32][33][34][35] can be selected according to the application scenarios requirements, such as a two-level bridge or full-bridge circuit, three-level NPC circuit, three-level T-type circuit, or even other higher-level circuits, etc. In order to facilitate theoretical analysis and simplify controller design, this paper takes the two-level three-phase bridge converter topology as an example to research.…”