Increasing Limits of Grid Extension for Renewable Integration through Decentralized Compensation
Conference: International ETG Congress 2015 - Die Energiewende - Blueprints for the new energy age
11/17/2015 - 11/18/2015 at Bonn, Germany
Proceedings: International ETG Congress 2015
Pages: 6Language: englishTyp: PDF
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Authors:
Banerjee, G.; Heckmann, W. (Fraunhofer IWES, Fraunhofer Institute for Wind Energy and Energy System Technology, Königstor 59, 34119 Kassel, Germany)
Abstract:
The increasing penetration of HV- and MV-networks with distributed generation (DG) is changing the network topology and operation requirements. The interconnection of DG is often done by cable lines leading to a huge up-rating of the capacitive earth fault current. This can be a challenge for the operation of compensated grids. The series impedance of the cable can also have significant impact. A medium voltage (20 kV) system was modelled and extended to a maximum expected share of DG. The influence of long cables and the difference between centralized and decentralized earth fault compensation schemes are investigated.