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Article Dans Une Revue International Journal of Electrical Power & Energy Systems Année : 2014

Real-time replication of a stand-alone wind energy conversion system: Error analysis

Résumé

This paper provides adequate information about the problem of real-time replicating in laboratory conditions. The dynamic behavior of stand-alone low-power wind energy conversion systems (WECS) in response to the wind speed variations and also to the electrical load variations is replicated. The investigated system consists of a variable-speed wind turbine based on a permanent-magnet synchronous generator (PMSG), a diode bridge rectifier, a DC-DC step-down converter and a wide range DC load. Because of reduced noise level and better steady-state accuracy, a speed-driven hardware-in-the-loop physical WECS simulator has been used to accomplish this task. Its significant drawback - that is, a reduced bandwidth - has been significantly alleviated by using an enhanced software simulator structure which uses a feed-forward compensation of the inherent physical disturbance produced by the generator torque variations. Both time-domain experimental results and a thorough frequency-domain error analysis show good replication performance in the frequency range of variation of both wind speed and electrical load.
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Dates et versions

hal-00879357 , version 1 (02-11-2013)

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Ciprian Vlad, Antoneta Iuliana Bratcu, Iulian Munteanu, Silviu Epure. Real-time replication of a stand-alone wind energy conversion system: Error analysis. International Journal of Electrical Power & Energy Systems, 2014, 55, pp.562-571. ⟨10.1016/j.ijepes.2013.10.016⟩. ⟨hal-00879357⟩
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