Kimmo Kauhaniemi

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After microgrid transition from the normal operation to the islanded operation the system impedance changes considerably and it affects on the harmonic voltages of the microgrid. In this paper the voltage and current THD before and after islanding are studied with different microgrid configurations. Simulations are also made by applying negative sequence(More)
Smart Grid refers to an intelligent grid that employs modern information and telecommunication technologies to meet the challenges relating to the power delivery in the future. These challenges are due to, among others, increased use of renewable energy and power supply reliability requirements of modern digital society. In order to fully realise the Smart(More)
Energy systems are gaining more evolution upon the incoming boom of the distributed energy resources (DERs). In order to sustain an efficient electrical energy systems operation and reduce hazard for the Electrical Utilities personals within such dynamic and adaptable systems structure behavior that handle numerous parameters and variables. A new islanding(More)
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