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In this paper is presented a comparison of three converter topologies based on high-frequency link for offshore wind turbines with permanent magnet synchronous generator. The scheme of the wind energy conversion system considered is based on three stages: an AC-AC converter, a high-frequency transformer and a full-bridge diode rectifier. The incidence of the number of phases in the AC link of the...
This paper presents some modulation features of a high-frequency link based on reduced matrix converter for offshore wind farms. The topology consists on a reduced matrix converter, a high frequency transformer and a full-bridge diode rectifier. The converter is operated as a current source. An experimental set-up of 10 kW was used to demonstrate the feasibility of the proposed modulation. Results...
In this paper is presented a comparison of two converter topologies based on single-phase link for offshore wind turbines with permanent magnet synchronous generator. The scheme of the converter module considered is based on four stages: an inductive filter, an 3AC-AC converter, a single-phase high-frequency transformer and a full-bridge diode rectifier. The conventional 3AC-AC converter with DC-Link...
This paper presents a control strategy for HVDC systems based on pulse width modulated current source converters. The strategy is applicable to series connected off-shore wind farms where the line current must be controlled by the on-land converter while the off-shore voltage and power are controlled by converters allocated in each turbine. A threestage hierarchical control based on proportional regulators...
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