The virtual synchronous generator (VSG) technique is used to simulate the external characteristics of a (SG) provide certain damping and inertia power systems. However, it may easily cause low-frequency oscillation system. We studied small-signal stability grid-connected generator. Firstly, models single-VSG multi-VSG systems were established. Subsequently, system eigenvalues obtained by solvin...

Synchronous generator (SG) plays a vital and critical role in the power system by supplying electric to consumers. Various faults SGs can cause some catastrophic events such as disruption or blackout. These be classified into two electrical mechanical faults. Short circuit stator windings field winding are fault while bearing, static/dynamic eccentricity, broken damper bars one. Unlike inductio...

Power is generated in a variety of ways, including renewable energy, nuclear power, and burning fossil fuels. The majority our power currently by fuels, mostly natural gas coal, to spin turbines attached an electromagnetic generator. main advantage AC generation that the voltage levels can be altered up down with transformers, allowing electricity sent across long distances loads demand it. exc...

This article deals with the stator cooling of an air-cooled, synchronous generator a power rating 400 kVA, which has been improved by adding two radial vents to stator. To ensure optimal vent design, novel combined thermal and electromagnetic modelling approach is developed. A parametric 3D Conjugate Heat Transfer Computational Fluid Dynamics (CFD) model used for modelling. An 2D Finite Element...

Virtual synchronous generator (VSG) is a promising solution for inertia support of the future electricity grid to deal with frequency stability issues caused by high penetration renewable generations. However, power variation in electronic interface converters VSG emulation increases stress on semiconductor devices and hence has negative impact their reliability. Unlike existing works that only...