Czasopismo | WIADOMOŚCI ELEKTROTECHNICZNE | Rocznik 2016 - zeszyt 5

Operational experience with connecting the renewable energy sources to MV systems in the Czech Republic

10.15199/74.2016.5.11

nr katalogowy: 98419
10.15199/74.2016.5.11

After the study of connecting the Renewable energy sources (RES) to MV power lines has been finished and the zoning and planning decision and the building permit have been obtained, it is possible to start with designing the building and the electric parts of the RES. A technical solution is the matter of the electric part. Service and commissioning conditions will be included too. The protective system on MV side, in the break point, must satisfy the conditions of the selective setting with the protections of MV power lines. New possibilities of the power regulation can be used for an optimal utilization of the wind-power plants (WPP). Dynamic support of the WPP system and its evaluation are parts of the network codex. Study of RES connectibility For the connection of the renewable energy sources (RES) - wind power plants (WPP), photovoltaic plants (PV), combined sources a study of their connectibility will be prepared according to the Rules of the operataion of the distribution system, Attachment No. 4 - Rules for the parallel operation of the sources and the LV or MV network of the operator of the distribution systems [1]. To improve the calculations, we set the own consumption of the power plants and the setting of the branch line of the block transformers. The utilization of WPP is expectable in tens of percents. In practice they do not operate with rated powers. Also this fact should be considered at the calculations of WPP connections. Designing of the electric part of RES, first of all WPP [2] The technical report is the body of the project and includes following items: - Assumptions for solving the project, - Technical solution, - Commissioning and operating conditions, - Requirements for the designed equipment realization. Assumptions for solving the project are given by the scope of the designed equipment, by regulations and standards, by basic technical data, by marking. Scope of the designed equipment In case[...]

Bibliografia

[1] Rules of the distribution system operations, RDSO, Annex 4 (RDSO, Annex 4) - Rules for a parallel operation of power sources with LV or MV networks of the distribution system operator, 10/2011.
[2] Pospíšil, J., Prochazka K., Kolcun M. : Field experience with connecting the dispersive supplies to MV systems in the Czech Rep., Session 4-Paper 0652,In.:Konference CIRED 2007, Vienna.
[3] Pospíšil, J., T. Effenberger, M. Kalab, A. Prochazka, 2006: Primary tests of protective systems of the dispersive sources. In. : Conference CK CIRED 2006, Tabor
[4] Catalogue of the multifunctional voltage-frequency protection of RUFm type, PROTECTION & Consulting, s.r.o., Brno.
[5] Pospíšil J.: Impact of Renewable Energy Sources /RES/ on the Innovation of the Protection System of MV Distribution Network, Paper OP014 - In. Conference PAC World, Budapest, 2012.
[6] Pospíšil, J.: Innovation of the RES protection system, In.: CC Conference of CIRED 2010, Tabor, 2010.
[7] Pospíšil J., Tureček J., Effenberger T., Malek R., Turecek P.: Innovation of the control of RES plants according to the energetics law novel Law No. 458/2000 of Code, In: CC Conference of CIRED 2013, Tabor.
[8] Pospíšil, J., T. Effenberger, 2006.: Study on connecting the wind-power park Koprivna to the distribution line 110 kV, Technical report, Protection & Consulting, s.r.o., Brno.
[9] Pospíšil, J., Pouchly, L., Tureček, P. : Knowledge of connecting the renewable sources to MV and HV networks, In: CC Conference of CIRED 2007, Tabor.

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