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Wind energy, a kind of non-conventional energy source and environmental fresh energy, is widely studied nowadays. Directly driven wind turbine permanent magnet synchronous generator (D-PMSG) plays a vital role in the latest small-scale wind Power technology. This paper presents the modeling and experimentation of a 12kW direct driven Permanent Magnet Synchronous Generator of Wind Power. This model...
Integrating wind power generation has direct impacts on a distribution network such as power quality, reliability, loss, and voltage profile problems. Thus, a high penetration level of wind power generation is a significant challenge to the traditional system operation on voltage stability. In this paper, a method to evaluate voltage stability of doubly-fed induction generator (DFIG) wind turbines...
In existing load flow model of induction generators, the magnetizing path is moved to the stator terminal, parallel to the shunt capacitor, yielding the same stator and rotor currents. The power output is equal to the mechanical power input. The stator resistance and the machine loss are ignored. It can not provide the initial condition for the dynamic and control schemes requiring the exact stator...
This paper presents a modal analysis of a two machine power system that includes a doubly-fed induction generator (DFIG). The DFIG's model considers rotor flux linkages as dynamic states and stator flux linkages as algebraic variables. Active- and reactive-power controllers are also modeled. Active power is tracked for optimal power extraction from the wind. Using the power system set of differential-algebraic...
Wind energy is considered the most viable proposition among the renewable energy options. Of various Wind Energy Conversion Systems (WECS), fixed speed induction generator based WECS directly connected to the grid is the cheapest and simplest option and has the largest market share. This type of WECS does not require any power electronic interface to allow the grid connection unlike the variable speed...
Method for wind turbine controller design and test in laboratory still remains a problem. This paper presents a realtime simulator of non-grid-connected wind energy conversion system suitable for controller design and test. The simulation model, which is composed of a fixed-pitch wind turbine, a permanent magnet synchronous generator with PWM voltage source vector control and DC-DC converter with...
Wind power generation is regarded as the most promising of all renewable energy supply to meet the global commitment to climate change. Of all wind power technologies, the fixed speed system employing the rugged squirrel cage induction generators (SCIGs) are the cheapest and simplest for grid connection. While the self excitable induction generator behavior in stand alone circumstances has been studied...
The subject of this paper is an alternative converter for switched reluctance generators (SRG) and its applications. The performance of the conventional half-bridge converter is compared with the performance of this alternative one. In both cases the machine is excited by a rectified DC link. Mathematical model and simulation results are presented. Both the power converters topologies implemented...
Electricity from wind provides an alternative to conventional generation that could be used to achieve significant reductions in fossil fuel use and consequently industrial emissions. Recent progress in wind power generation has led to the use of grid connected and self excited induction generators (SEIG). Induction machines are commonly used in these applications. Aluminum has been the common conductor...
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