Diagram of the principle of induced draft wind power generation

What are the components of a modern induction generator wind power system?

1. Introduction The core component of a modern induction generator wind power system is the turbine nacelle, which generally accommodates the mechanisms, generator, power electronics, and control cabinet.

Is doubly fed induction generator useful for large scale wind farm?

l control strategy, however, made the application of doubly fed induction generator (DFIG) more useful for large scale wind farm. One must, however, remember that th size of an individual DFIG unit is still very small (2.00-5.00MW range) compared to central power plants

What is the energy ratio of a wind turbine?

vironmental conditions. Considering that energy is the product of its time-rate, that is, the power with the elapsed time, this energy ratio is equal the ratio of average power P to the nominal power of the system P . For a single wind turbine this nominal power i

What metric is used to study wind turbine performance?

This paper explores the mathematical models of the aerodynamics of wind turbines, focusing on wind drag and power production. The rst theory, Actuator Disk Theory, provides a metric for studying wind turbine performance as well as an upper-limit for power production, known as the Betz Limit.

Why do wind turbines need adjustable speed generators?

Hence, the speed of the turbine blades is allowed to increase storing energy into the turbine’s iner-tia. During this transient, output power remains practi-callyconstant,avoidingpowersurgesintothepowergrid. This article shows that adjustable speed generators for wind turbines are necessary when output power becomes higher than 1 MW.

How does a wind generator convert mechanical energy to electrical energy?

The shaft drives the generator to convert the mechanical energy to electrical energy. According to Newton’s law, the kinetic energy for the wind with particular wind speed Vw is described as: where ρ and A are the air density and turbine rotor swipe area, respectively. The extracted mechanical power can thus be expressed as: