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Method And System Of Control Of The Converter Of An Electricity Generation Facility Connected To An Electricity Network In The Presence of Voltage Sags In Said Network
Method And System Of Control Of The Converter Of An Electricity Generation Facility Connected To An Electricity Network In The Presence of Voltage Sags In Said Network
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机译:在所述电网中存在电压暂降的情况下,与电网连接的发电设施的变流器的控制方法和系统
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摘要
Method and system of control of the converter of an electricity generation facility of the type which comprises at least one electric generator, such as a wind generator, connected to an electricity network, in the presence of voltage sags in said network, the electric generator being a double-fed asynchronous generator formed by two windings, a winding in the stator, directly connected to the network, and a winding in the rotor which is fed on normal regime by said converter which imposes on it a predetermined voltage current called setpoint current. In the event of a voltage sag occurring, the converter imposes a new setpoint current which is the result of adding to the previous setpoint current a demagnetizing current which generates a flow in the rotor winding opposed to the free flow, consequently reducing the voltage in converter connectors.
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