Encouraging reactive reduction

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The results from the first eight months of testing a prototype 250 kW "intelligent power controller" on a 225 kW wind turbine near Nagercoil, India, have been encouraging. "Considerable improvement has been recorded in power generation," reports K. A. Fathima of the Electronics Research and Development Centre, Thiruvananthapuram, in Kerala. The controller reduces the turbine's import of reactive power from the grid -- long considered the Achilles' heel of wind generation in India -- to nearly zero and also improves power generation at low wind speeds, Fathima says. The technology uses digital signal processors, intelligent IGBT modules and software made in India. The project is funded by the Ministry of Non Conventional Energy Sources.

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