The design of a robust frequency converter controller for fatigue load reduction in variable speed wind turbines requires an accurate dynamic model of the electromagnetic part of the synchronous generator under investigation. In this paper a new procedure for identifying the transfer functions of Park’s -axis model of a synchronous generator has been developed. It will be shown that the paramet...

<span lang="EN-US">Synchronous generator conventional model accurately describes only the stator circuit. Concerning transients for rotor quantities, example voltage, current, and magneto-motor force, conceivable predetermined with acceptable accuracy if calculations are created on equivalent properly consideration of field damper together circuits. Unfortunately, it was recognized that s...

Renewable energy sources (RESs) are generally connected to the grid through power electronic interfaces, which generate electrical instantaneously with little inertia. With increasing penetration of RESs, will gradually develop into a low inertia and underdamped system, results in serious frequency stabilization problems. The virtual synchronous generator (VSG) is an emerging technology that mi...

This paper analyses the performance of local passive islanding detection methods for synchronous distributed generators, under different grid and load scenarios. These methods monitor electrical parameters at the interconnection point of a distributed generator and detect island situation whenever these parameters change correspondingly. Lately, islanding detection research has been focused on ...

Abstract—This paper investigates the thermal issue of permanent magnet synchronous generator which is frequently used in direct drive gearless small-scale wind turbine applications. Permanent Magnet Synchronous Generator (PMSG) is designed with 2.5 kW continuous and 6 kW peak power. Then considering generator geometry, mechanical design of wind turbine is performed. Thermal analysis and optimiz...

Tendencies in development of wind power industry including direct-drive small-scale wind power plants and generators have been analyzed. Synchronous generators with permanent magnet excitation for direct-drive wind power turbines are described. Primary magnetic field distribution and effect of armature reaction have been studied for design of a low-speed multipole permanent-magnet synchronous g...

An analysis of a synchronous generator in a bond graph approach is proposed. This bond graph allows to determine the simplified models of the system by using singular perturbations. Firstly, the nonlinear bond graph of the generator is linearized. Then, the slow and fast state equations by applying singular perturbations are obtained. Also, a bond graph to get the quasi-steady state of the slow...