In a doubly-fed asynchronous wind turbine, transient rotor overcurrent and overvoltage caused by voltage sag will damage power electronic devices, and the attenuation of electromagnetic torque will also lead to an increase in rotational speed. As shown in Figure 1, it is the structure of a doubly-fed asynchronous wind turbine with a rotor Crowbar(the Crowbar switch […]
Renewable energy electric power generation technologies engineering and application
The basic principles and implementation methods of renewable energy engineering using various renewable energy technologies for electric power generation are described
Renewable energy electric power generation technologies engineering and application
The basic principles and implementation methods of renewable energy engineering using various renewable energy technologies for electric power generation are described
Low voltage ride through technology of permanent magnet synchronous wind turbine
The concept of low voltage ride through and related specifications The so-called low voltage ride-through (LVRT) specifically refers to the voltage drop at the grid connection point of the wind farm due to grid failure or disturbance, within a certain range of voltage drop, wind turbines can be connected to the grid uninterruptedly and provide a […]
Influence of low voltage on wind turbines
Practice has proved that a sudden drop in the voltage of the grid connection point will reduce the output power of the wind turbine, which in turn will cause an imbalance between the input power and the output power, resulting in adverse effects. For different types of wind turbines, the ability to resist low voltage […]