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This study presents an optimisation control strategy for the power control of voltage source converter-based high-voltage direct current transmission under unbalanced grid voltage conditions. To facilitate simple implementation and flexible operation, the current references are derived and synthesised into one generalised equation that introduces two individually adaptable parameters. The two parameters...
Wind speed varies continuously. The turbulent winds act as a constant low-level excitation to wind turbines. Assuming turbulence is stationary over an analysis window, the parameters of drive system in a fixed-speed wind turbine are estimated in this study. First, simulations are performed when the wind turbine generator is under turbulence excitations and the spectral contents of the response data...
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