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This study demonstrates the use of two types of pendulums on a vortex bladeless wind (VBW) turbine: arc-shaped and disc-shaped. Here, the kinetic energy of the wind as input to the VBW turbine gets converted into useful electrical energy for both types of pendulums. Permanent magnets are attached to the pendulums and act as a piston to the generator, while a coil is made as the stator with 2,200 turns...
This paper suggests three different approaches for online reactive power dispatch in wind farms by using a new heuristic optimization algorithm called Mean-Variance Mapping Optimization (MVMO). Optimization for any given operating point will result in minimum losses but doesn't allow the consideration of the cost of on-load tap changer (OLTC) movements. To solve this problem the authors propose a...
Wind power is a renewable energy source increasingly attractive from an economic viewpoint and constitutes an alternative of growing relevance in current electric energy systems. The majority of operating wind farm turbines are on land, but it is expected that an important part of the future expansion of wind energy utilization, mainly in Europe, will come from offshore sites, where there are favorable...
The design of a pitch control capable to respond to frequency deviations is presented in this paper. The pitch control method reserves a percentage of power extracted from the wind turbine in order to help to mitigate frequency deviations when an extra power is needed. For the purpose of pitch control design, the transfer function of the whole system and an adjust of a controller is needed. Results...
Wind turbine electrical generation systems (WTGSs) with doubly-fed induction generators and variable speed capabilities have become popular because of its wide operation range and quality power output compared to the old fixed-speed squirrel-cage generators. The growing WTGS implantation have also increased the grid incidenses due to the wind parks and thus the study of the design of the control to...
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