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Islands wind-powered space heating microgrid using self-excited 220 kW induction generator," IEEE Transactions on Sustainable Energy, 2014.Abstract--Energy is fundamental to modern society. Increase in the oil price as well as environmental concerns have spurred the use of alternative renewable energy sources. In the Faroe Islands the readily available wind energy is an obvious source for space heating. Seasonal correlation exists between wind energy and required space heating and mismatches can be reduced by using simple water tanks as heat storages. A traditional Danish induction generator wind turbine has been erected on the island of Nólsoy to produce energy for space heating. The system is designed as a stand-alone Microgrid which needs its own control of frequency and voltage. A microcontroller is used to control frequency by matching load (heaters) to generated power and to produce the correct reactive power and voltage by switched capacitors. One challenge is the startup procedure at high winds speeds when nominal speed tend to be reached before voltage builds up by the self-excitation process. This paper reports the initial test and adaptation of the control system. Index Terms--Microgrid, wind energy, induction generator, self-excitation, space heating. Paul B. Thøgersen (M'92-SM'01) was born in Thy, Denmark, on June 29, 1959. He received the M.Sc.

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During an effort-regulated period from 1996 to 2002, unregistered annual increases of 0.3% of hooks fished per day were demonstrated for the Faroe Islands longline fishery. However, annual increases were higher (1.5%) during a preceding total allowable catch regulated period, thereby invalidating an expectation of the 1996 shift in regulations (output to input control) to have induced increases in the number of hooks set per day. Underlying this result is a substantial increase in total yearly effort (fishing days) and a shift in targeting behaviour from secondary to primary (high value) target species in response to the transition from output to input control. Interview data on technology were combined with logbook data and analysed with generalized linear modelling to demonstrate haddock ( Melanogrammus aeglefinus ) and Atlantic cod ( Gadus morhua ) catch-per-unit-effort increases of 51% and 26%, respectively, following the introduction of skewed hooks and swivel line. The technological introductions were not correlated to regulation shifts. So, rather than the management system in force, an ongoing technological development seems to be the principal driver of fishing power trends. The results highlight the need to explicitly address technological development and targeting behaviour when attempting to meet conservation objectives through input control of fisheries.

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