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...

This paper presents automatic reactive power control of the isolated wind-diesel hybrid power systems. The synchronous generator (SG) is used for power generation from diesel and the induction generator (IG) is used for electric power generation from wind turbine. To minimize the gap between reactive power generation and demand, the variable sources of reactive power is used such as static sync...

this paper presents the application of radial basis neural networks to the development of a novel method for the condition monitoring and fault diagnosis of synchronous generators. in the proposed scheme, flux linkage analysis is used to reach a decision. probabilistic neural network (pnn) and discrete wavelet transform (dwt) are used in design of fault diagnosis system. pnn as main part of thi...

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...

Diesel Generator (DG) set based standalone supply systems are source of electricity in many parts of world. DG sets are backbone of supply in trains, hospitals, institutes, telecommunication towers etc. Because of huge demand of electricity for air-conditioning, lighting, toiletries, pantry demands in trains, the railways has been one of the big consumer of DG set based supply systems. Moreover...

Incidents of sub-synchronous oscillations (SSOs) reported in the Hami power network western China indicate that torsional dynamics a synchronous generator (SG) can be excited by grid-connected wind farm and trigger SSOs. The concept open-loop modal resonance (OLMR) reveals excitation mechanism from standpoint system condition. This paper proposes novel damping torque analysis (DTA) for detectin...

This study examines the transient stability of low-inertia power systems with inverter-based generation (IBG) and proposes a sufficient criterion. In grids, interactions are induced between electromagnetic dynamics IBG electromechanical synchronous generator (SG) under fault. For this, hybrid IBG-SG system is established delta-power-frequency model developed. Based on this model, new mechanisms...

this paper presents the application of the matching pursuit method to model synchronous generator. this method is useful for online analysis. in the proposed method, the field voltage is considered as input signal, while the terminal voltage and active power of the generator are output signals. usually, the difference equation with a second degree polynomial structure is used to estimate the co...

The forced oscillation technique (FOT) allows easy assessment of bronchial reactivity. The use of a standard FOT generator (SG) results in changes in respiratory system resistance (delta Rrs,SG) which are affected by an artefact caused by the extrathoracic upper airway (EUA). The aim was to improve the FOT assessment of bronchial reactivity with the SG by computing the change in FOT admittance ...

in this research paper, the performance of an air-cored axial flux permanent magnet synchronous generator is evaluated for low speed, direct drive applications using 3d finite element modeling and experimental tests. the structure of the considered machine consists of double rotor and coreless stator, which results in the absence of core losses, reduction of stator weight and elimination of cog...