Low Voltage Ride Through

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. In electricity supply and generation, low voltage ride through, or fault ride through, is what an electric device, especially wind generator, may be required to be capable of when the voltage in the grid is temporarily reduced due to a fault or load change in the grid. The voltage may be reduced in one, two or all the three phases of the AC grid. The severity of the voltage dip is defined by the voltage level during the dip and the duration of the dip. For generating units such as wind turbines and solar power stations, the required LVRT behaviour is defined in grid codes issued by the grid operator. Examples of the such grid codes are the German E.On grid code and UK National Grid code.