A Resonance Suppression Method for Offshore Wind Farm Based on Modal Calculation
A resonance suppression, wind farm technology, applied in computing, electrical digital data processing, instrumentation, etc.
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[0101] In order to verify the analysis method of the offshore wind farm resonance based on modal analysis proposed in the present invention, the correctness and feasibility of the method of the present invention will be described below using the analysis results of the Danish Horns Rev2 offshore wind farm system.
[0102] The wind farm has a chain topology. Each wind turbine includes a squirrel-cage asynchronous motor, converter, LCL filter and box-type export step-up transformer (0.69 / 35kV). Afterwards, chain topology is used to connect all wind turbines to busbars, pass through step-up transformers (35 / 150kV), and transmit them to the onshore power grid through long-distance cables. All the power transmission lines are submarine cables buried 1m below the seabed.
[0103] 1. Solve the system resonance impedance spectrum in the initial state, and compare the performance under different topologies
[0104] Solve the resonant impedance spectrum of the system under the chain t...
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