GENERATOR POWER PEAK LIMITING IN VIRTUAL SYNCHRONOUS MACHINE WIND TURBINE
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United States of America
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Issued Date -
Feb 20, 2025
app pub date -
Dec 15, 2022
filing date -
Dec 15, 2022
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Abstract
Limiting generator loads in a wind turbine having a power converter with a line side inverter configured as a grid forming inverter. A maximum grid current value is determined based on a measured generator load and a limit function. A virtual impedance value and a virtual voltage drop over the virtual impedance value are determined. A virtual synchronous machine angle is determined based on a power reference and the virtual grid power. The voltage reference for controlling the line side inverter is determined based on the virtual synchronous machine angle, the virtual voltage drop and the voltage magnitude reference.
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