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This paper investigates the solid state transformer applied for the HVDC transmission from the offshore windfarm. The 5kVA experimental setup is developed and comparison of 50Hz, 400Hz and 1000Hz operation. Dependency of the loss in the transformer with different core materials to frequency is investigated. Frequency loss dependency of several core materials are compared with experimental measurement...
This paper details a Smart Grid Laboratory for the study of modern house distribution systems with multiple energy sources and energy regeneration capability. The laboratory is designed to perform real-time simulation of a realistic distribution system connected to multiple houses. In addition, a real house with typical appliances and power sources is connected to the eMEGAsim real-time simulator...
Application of Information Technology (IT) to distribution systems is an important factor for making the business effective and profitable. Similarly to other fields of the electrical sector, IT is rapidly increasing in the distribution system. A survey on the current status has been carried out (from December 2002 to May 2003) as an activity of the CIGRE Working Group WG 37.35 “Information technology...
The paper presents the results of a study of the possible interaction between the AC and DC lines placed on the same tower. The study was carried out on a simulator using physical models. Modelling procedures for representing the mutual coupling between the lines are presented. Results of tests of contact faults, electromagnetic coupling, dynamic response, loadrejection and ground faults are discussed.
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