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Design of modern Wind Energy Conversion Systems (WECSs) must take into account two crucial aspects: efficient control strategies and reliable monitoring and diagnosis techniques. Wind turbine generators based on Wound Rotor Induction Machine (WRIM) is actually the preferred technology mainly because of the lower rating of the power converter connected to the rotor side. With the association of a back-to...
In this paper we propose, implement and evaluate a bandwidth aggregation service for residential users that enhances the throughput of their Internet broadband connection through the aggregation of available capacity at neighboring broadband links. Network resources are aggregated by the residential access gateway using the 802.11 radio interface to simultaneously serve home users and to share the...
Today residential users often have at their disposal multiple ways for connecting to the Internet, including both wired (ADSL, cable) and cellular (3G, LTE) technologies. However, there are no applications that benefit from the presence of the aggregated capacity across all available access networks. In this paper we demonstrate how the already-paid-for bandwidth available on mobile devices can improve...
The aim of this paper is to present a diagnosis methodology for the detection of electrical faults in three-phase wound-rotor induction machines (WRIMs). In the considered application, the rotor windings are supplied by a static converter for the control of active and reactive power flows exchanged between the machine and the electrical grid. The proposed diagnosis approach is based on the use of...
We present a lightweight algorithm for the estimation of the node achievable throughput and available bandwidth in IEEE 802.11 wireless networks. We consider a multirate WLAN with access point (AP), where there may be both elastic and inelastic traffic flows. Through our algorithm and leveraging previous theoretical results, the AP can estimate: (i) the available bandwidth that a new station wishing...
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