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Owing to the growth in penetration of DGs (distributed generators), inverters installed together with the DGs have been increasing rapidly. In general, these grid-connected inverters need a dedicated synchronization unit such as a phaselocked loop (PLL), which receives voltage phase, frequency, and amplitude of the grid voltage as reference from power grids. As the installation of inverters keeps...
In this study, we investigate the transient stability criteria for an inverter-based distributed generator (DG) connected to an infinite bus system. The DG system is first compared and contrasted with the synchronous generator (SG) system using their mathematical expressions. The differential equations of the two systems that govern the frequency and phase of the generator output are similar. On the...
In this paper, a simplified model of a micro-turbine, used as distributed generator, is obtained. The model is suitable for investigating the effects of inverter modulation index on the stability of micro-turbines. The proposed model is built from the nonlinear dynamic model of a micro-turbine and then linearized. The linear model is also simplified. To illustrate the proposed model, a sample micro-turbine...
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