METHOD OF ENERGY DISSIPATION IN A CONTINUOUS CURRENT BUS OF A DOUBLE-FEDERED INDUCTION GENERATOR CONVERTER DURING A NETWORK EVENT AND SYSTEM FOR DISSIPING ENERGY IN A CONTINUOUS CURRENT BUS A GENERATOR CONVERTER TURNING A WINDEN CONNECT TO A WIND

摘要

method of dissipating power on a direct current bus of a double-fed induction generator converter during a network and system event to dissipate power on a direct current bus of a double-powered induction generator converter connected to a turbine Wind during a Grid Event ”The field of disclosure generally refers to methods and systems for use in wind turbine control operation and, more specifically, to control the operation of a wind turbine with the use of dynamic braking in response. to an islanding event. This is a method and system for dissipating power on a dc bus of a double-fed induction generator converter (dfig) during a network event. in one aspect, the method comprises monitoring operating conditions of an electrical system, the electrical system comprising at least one dfig generator (102) and a line side converter (136) and a rotor side converter (134) connected by a dc bus that has a dynamic brake (142) connected to it; detecting a dc bus overvoltage or a condition indicating that a dc link overvoltage is detected, with the dc bus overvoltage or overvoltage condition being caused by a network event; and cause the power to the dc connection to dissipate using the dynamic brake (142).