Abstract
The integration of renewable energy sources, e. g. wind energy in weak or isolated power systems produces disturbances. Such disturbances are due to the power fluctuations caused by the stochastic fluctuating wind energy, current harmonics in the power system, switching operations, tower effects and reactive power consumption of the wind energy installations. These decrease the power quality at the point of common coupling (PCC). This paper introduces a concept to compensate the disturbances by the use of a static synchronous converter with an active damping circuit. This new concept is based on the principle of the static reactive power converter, and was extended by means of system integration of largely standardized components of the drive-converter technology.
In combination with an active intervention in the pulse-pattern generator of the main converter, it is possible to balance asymmetrical loads and compensate the harmonics. The pulse pattern generator was realized through an assembler-programmed PC.
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