Specifics of integration of wind power plants into the Croatian transmission network

Increasing number and capacity of wind turbines have overgrown connection to the distribution network. Considerable wind power plant installed capacity makes their connection to the transmission network a common practice today. However, large scale wind power integration requires increase in transmission network capacity. The problem with transmission network capacity investments is that they will be fully utilized only on rare occasions. This makes the investments in power lines reinforcement economically questionable. The transmission network capacity problems get even worse when several large wind power plants with simultaneous peaks in production are connected to the transmission network in the same node. The objective of this paper is to provide an insight in the issues of large-scale wind power plant integration into the transmission grid in Croatia. An accurate and detailed model for assessing power flows and voltage levels has been developed as a result of multiple projects involving wind power plant connections to the Croatian transmission network. Problems of large-scale wind power plant integration into the Croatian transmission network are addressed and solutions acceptable for both the investors and the Transmission System Operator are proposed.

[1]  P. A. Østergaard.  Transmission-grid requirements with scattered and fluctuating renewable electricity-sources , 2003 .

[2]  Arthouros Zervos,et al.  The role of pumped storage systems towards the large scale wind integration in the Greek power supply system , 2012 .

[3]  Mark O'Malley,et al.  A Blast of Activity , 2011 .

[4]  Hans Auer,et al.  Conditions and costs for renewables electricity grid connection: Examples in Europe , 2008 .

[5]  Aidan Tuohy,et al.  Pumped storage in systems with very high wind penetration , 2011 .

[6]  Henrik Lund,et al.  Large-scale integration of wind power into different energy systems , 2005 .

[7]  Goran Krajačić,et al.  Large Scale Integration of Wind Energy by Financial Mechanisms for Support of Pumped Hydro Storage Installations , 2011 .

[8]  Mel Olken.  Windy conditions [From the Editor] , 2011 .

[9]  Davor Skrlec,et al.  Large scale wind power plants integration into the Croatian power system , 2010, Proceedings of 14th International Power Electronics and Motion Control Conference EPE-PEMC 2010.

[10]  F. Careri,et al.  Wind power generation and transmission system planning: the Italian case , 2010, Melecon 2010 - 2010 15th IEEE Mediterranean Electrotechnical Conference.

[11]  Brian Vad Mathiesen,et al.  The technical and economic implications of integrating fluctuating renewable energy using energy storage , 2012 .

[12]  Stefanos V. Papaefthymiou,et al.  A Wind-Hydro-Pumped Storage Station Leading to High RES Penetration in the Autonomous Island System of Ikaria , 2010, IEEE Transactions on Sustainable Energy.

[13]  Mark J O'Malley,et al.  Maximizing Firm Wind Connection to Security Constrained Transmission Networks , 2010, IEEE Transactions on Power Systems.

[14]  C. Song,et al.  Ethyl-eicosapentaenoate (E-EPA) attenuates motor impairments and inflammation in the MPTP-probenecid mouse model of Parkinson's disease , 2012, Behavioural Brain Research.

[15]  Antonio J. Conejo,et al.  Transmission network cost allocation based on equivalent bilateral exchanges , 2003 .

[16]  S. Bhattacharyya,et al.  Integration of Wind Power into the British System in 2020 , 2011 .

[17]  A. Daraeepour,et al.  A new self-scheduling strategy for integrated operation of wind and pumped-storage power plants in power markets , 2011 .

[18]  William D'haeseleer,et al.  Determining optimal electricity technology mix with high level of wind power penetration , 2011 .

[19]  Mir-Akbar Hessami,et al.  Economic feasibility and optimisation of an energy storage system for Portland Wind Farm (Victoria, Australia) , 2011 .

[20]  Jay Apt,et al.  Economics of compressed air energy storage to integrate wind power: A case study in ERCOT , 2011 .

[21]  A.M. Gonzalez,et al.  Stochastic Joint Optimization of Wind Generation and Pumped-Storage Units in an Electricity Market , 2008, IEEE Transactions on Power Systems.

[22]  Evangelos Tzimas,et al.  Challenges and options for a large wind power uptake by the European electricity system , 2011 .

[23]  Reinhard Madlener,et al.  Economics of centralized and decentralized compressed air energy storage for enhanced grid integration of wind power , 2013 .

[24]  Liangzhong Yao,et al.  Value of Wind Power at Different Locations in the Grid , 2011, IEEE Transactions on Power Delivery.

[25]  John Kabouris,et al.  Impacts of Large-Scale Wind Penetration on Designing and Operation of Electric Power Systems , 2010, IEEE Transactions on Sustainable Energy.

[26]  John Olav Gioever Tande,et al.  Exploitation of wind-energy resources in proximity to weak electric grids , 2000 .

[27]  Richard L. Ottinger,et al.  Compendium of Sustainable Energy Laws: Directive 2001/77/EC of the European Parliament and of the Council of 27 September 2001 on the Promotion of Electricity Produced from Renewable Energy Sources in the Internal Electricity Market , 2005 .