The Autonomous Electrical Power System of Crete Island A Review

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A systematical effort is made in this paper to present a thorough review, through an up to date literature survey, regarding the electrical power system of Crete island (EPSC) located in Greece. The EPSC is a large autonomous power system and its main characteristic is that, the load demand presents high seasonal variations and also increases rapidly. The annual increase rate is approximately 8% and the peak load demand has been doubled the last 12 years. Electricity generation is produced by conventional units (diesel units, steam and gas turbine generators and combined cycle) and also with the aid of renewable energy sources (RES). The installation of wind turbines (W/Ts) in Crete started on 1992 and up to now the wind power has a great percentage of penetration in the EPSC. There are primarily three main reasons that have caused the interest of many researchers to study the EPSC the last 15 years and subsequently produce quite large research work until today: a) The significant increase of the load demand in the island, b) the great percentage of W/Ts’ penetration in the EPSC and c) the old technology conventional units with which the EPSC is mainly composed and which in turn have a high running cost. An attempt is made by the author to present the EPSC in detail, giving an overall view of the system (data for the generation units, substations, wind parks and the grid), as well as the total relevant research concerning the EPSC, since something analogous has not been done yet in the literature. Many aspects concerning the EPSC are presented such as; load forecasting, RES and their connection to the grid, dynamic stability, economic operation, reliability, protection and dynamic security. It is an author's expectation that researchers in the future who are interested in the EPSC can draw data from this paper and keep up with the up to date research.
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Autonomous Power Systems; Renewable Energy Sources; Load Forecasting; Dynamic Stability; Economic Operation; Reliability; Protection; Dynamic Security

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J. K. Kaldellis, K.A. Kavadias, A.E. Filios, S. Garofallakis, “Income loss due to wind energy rejected by the Crete island electrical network - the present situation”, Applied Energy, vol. 79, pp. 127-144, 2004.

D. Katsaprakakis, D. G. Christakis, “On the wind power penetration percentage in the island of Crete”, RES & RUE for islands International Conference, Cyprus, 30-31 August 2004.

K. Kalaitzakis, G. Stavrakakis, “A simulation model for the reliable integration of a 4.5 MW wind farm into the power grid of the Crete island”, Solar Energy, vol. 9, pp.137-146, 1990.

N. A. Fountas, N. D. Hatziargyriou, B. C. Papadias, J. Stefanakis, E. Thalassinakis, “Dynamic Simulation Studies for Restoration Planning of Island Power Systems”, International Conference on Electric Power Engineering, PowerTech, Budapest 1999.

J. Syllignakis, D. Georgiadis, N. Hatziargyriou, “Study of collapse of the Crete System due to large power generation loss”, Proc. of MedPower02, MED02/286 Athens, Nov.2002.

A. Sergaki, K. Kalaitzakis, “A fuzzy dynamic programming algorithm for the optimal operation of power system interconnected with WECS”, Proc. of the 31th Universities Power Engineering Conference (UPEC)’96, pp.54-57.

N. Hatziargyriou, G. Contaxis, G. Atsaves, M. Matos, J. A. Pecas Lopes, M. H. Vasconcelos, G. Kariniotakis, D. Mayer, J. Halliday, G. Dutton, P. Dokopoulos, A. Bakirtzis, J. Stefanakis, A. Gigantidou , P. O’Donnell, D. McCoy, R. Costello, M. J. Fernandes, J. M. S. Cotrim, and A. P. Figueira, “MORE CARE Overview”, Medpower 2002, 4-6 November, Athens.

E. J. Thalassinakis, E. N. Dialynas, “A Monte-Carlo Simulation Method for Setting the Underfrequency Load Shedding Relays and Selecting the Spinning Reserve Policy in Autonomous Power Systems”, IEEE Transactions on Power Systems, vol. 19, issue 4, pp.2044-2052, 2004.

E. N. Antonidakis, D. E. Koulouriotis, A. Gigantidou, J. Stefanakis, and C. Tsikalakis, “Underfrequency Protection in Autonomous Island Power systems. The Case study of Crete”, IASTED EuroPes 2002, pp.233-238.

E. S. Karapidakis, N. D. Hatziargyriou, “Online Preventive Dynamic Security of Isolated Power Systems Using Decision Trees”, IEEE Transactions On Power Systems, vol. 17, no. 2, pp. 297-304, 2002.

N. Hatziargyriou, J. A. Pecas Lopes, E. Karapidakis, M. H. Vasconcelos, “On-line Dynamic Security Assessment of Power Systems in Large Islands with High Wind Power Penetration”, in Proc. of the 13th Power Systems Computation Conference (PSCC ’99), Trondheim, Norway, June 28-July 2, 1999.

D. Georgiadis, E. Karapidakis, N. Hatziargyriou, “Application of Machine Learning Techniques on the Dynamic Security of Isolated Power Systems with Large Wind Power Penetration”, 2nd Hellenic Conf. on AI, SETN-2002, 11-12 April 2002, Thessaloniki, Greece, Proceedings Companion Volume, pp. 257-268.

Ε. Dialynas, V. Dali, L. Daoutis, “Impact of Wind Generation on the Reliability of Autonomous Power Generation Systems”, Cigre, Athens 2003, 27 - 28 Nov. 2003.

D.I. Stratakis, T.M. Papazoglou, “Critical Factors in Load Forecasting for the Autonomous Electric Power System of Crete”, Proc. of the 34th Universities Power Engineering Conference (UPEC ’99), vol.1, Sept. 1999, pp.206-212.

S. Mirasgedis, D. Diakoulaki, L. Papagiannakis, A. Zervos, “Impact of social costing on the competitiveness of renewable energies: the case of Crete”, Energy Policy, vol. 28, pp. 65-73, 2000.

A. Mourelatos et al., “Large-scale integration of renewable energy sources - an action plan for Crete”, Energy Policy, vol. 26, pp. 751–763, 1998.

D. Voivontas, D. Assimacopoulos, A. Mourelatos, “Evaluation of Renewable Energy Potential using a GIS Decision Support System”, Renewable Energy, vol. 13, no. 3, pp. 333-344, 1998.

J. K. Kaldellis, “Investigation of Greek wind energy market time-evolution”, Energy Policy, vol. 32, pp. 865–879, 2004.

D. Christakis, M. Psofogiannakis, “Reduction of electricity cost by pump-storage unit in Crete island”, Proc. of the 31th Universities Power Engineering Conference (UPEC ’96), pp.330-333.

G. Th. Vlachos, J. K. Kaldellis, “Application of gas-turbine exhaust gases for brackish water desalination: a techno-economic evaluation”, Applied Thermal Engineering, vol. 24, no. 17-18, pp. 2487-2500, 2004.

G. S. Stavrakakis, J. K. Kaldellis, K. A. Kavadias, “Techno-economic evaluation of a thermal desalination installation for the Crete Island”, Technical Report, submitted to the Hellenic PPC from the Municipality of Gazi, Heraklion, Crete, Greece, 2003.

A. Saramourtsis, I. G. Damousis, A. G. Bakirtzis, and P. S. Dokopoulos, “Genetic Algorithm Solution to the Economic Dispatch Problem-Application to the Electrical Power Grid of Crete Island”, Advanced Course on Artificial Intelligence (ACAI’99), Workshop 09, ‘Machine Learning and Applications’, 13-14 July 1999, Chania, Greece.

I. G. Damousis, A. G. Bakirtzis, and P. S. Dokopoulos, “Network-Constrained Economic Dispatch Using Real-Coded Genetic Algorithm”, IEEE Transactions on Power Systems, vol. 18, no. 1, February 2003.

K. A. Papadogiannis, N. D. Hatziargyriou, “Optimal Allocation of Primary Reserve Services in Energy Markets”, IEEE Transactions on Power Systems, vol.19, no.1, pp. 198-205, 2004.

L. M. Proença, J. L. Pinto, and M. A. Matos, “Economic dispatch in isolated networks with renewables using evolutionary programming”, IEEE Power Tech’99 Conference, Budapest, Hungary, Aug. 29-Sept 2, 1999.

J. Stefanakis, A. Gigantidou, N. Hatziargyriou, A. Dimeas, A. Tsikalakis, “Financial Evaluation of the Operation of Island Power Systems with Large Wind Penetration using Advanced Control Systems”, Cigre, Athens 2003, 27 - 28 Nov., 2003.

V. Miranda, Pun Sio Hang, “Unit Commitment with a Genetic Algorithm, Probabilistic Spinning Reserve and Fuzzy wind Dispatch – “The Care project (eu joule programme)”.

J. P. Lopes, N. Hatziargyriou, H. Vasconcelos, J. N. Fidalgo, D. Georgiadis, E. Karapidakis, “Dynamic Security Evaluation Functions in the MORE CARE Project”, Medpower 2002, 4-6 November, Athens.

G. Kariniotakis, D. Mayer, J. A. Halliday, A. G. Dutton, A. D. Irving, R. A. Brownsword , P. S. Dokopoulos, and M. C. Alexiadis, “Load, Wind and Hydro Power Forecasting Functions of the More-Care EMS System”, Medpower 2002, 4-6 November, Athens.

J. Stefanakis, A. Gigantidou, N. Hatziargyriou, A. Dimeas, A. Tsikalakis, “Preliminary Evaluation of the MORE CARE Operation in Crete”, Medpower 2002, 4-6 November, Athens.

N. Hatziargyriou, A. Dimeas, A. Tsikalakis, A. Gigantidou, E. Thalassinakis, “Intelligent Techniques applied to the Economic and Secure Operation of Island Systems with large Wind Penetration”, Intelligent Systems Applications in Power (ISAP '03), Lemnos Greece, 31th Aug.-3th Sept., cd Ref. no.162., 2003.

M. A. Matos, J. L. Pinto, George C. Contaxis, A. Vlachos, P. S. Dokopoulos, “Economic Scheduling Functions in MORE CARE”, Proc. of MedPower '02, Athens, Nov.2002.

N. Hatziargyriou, G. Contaxis, M. Papadopoulos, B. Papadias, J. A. Pecas Lopes, M. Matos, G. Kariniotakis, E. Nogaret, J. Halliday, G. Dutton, P. Dokopoulos, A. Bakirtzis, A. Androutsos, J. Stefanakis, A. Gigadidou, “Operation and Control of Island Systems – The Crete Case”, in Proc. of IEEE Power Eng. Society, Winter Meeting, Singapore, Jan, 23-27, 2000.

K. Kalaitzakis , G. S. Stavrakakis, E. M. Anagnostakis, “Short-term load forecasting based on artificial neural networks parallel implementation”, Electric Power Systems Research, vol. 63, 2002, pp.185-196.

V. S. Kodogiannis, E. M. Anagnostakis , “Soft computing based techniques for short-term load forecasting”, Fuzzy Sets and Systems, vol. 128, pp. 413-426, 2002.

V. S. Kodogiannis, E. M. Anagnostakis, “A study of advanced learning algorithms for short-term load forecasting”, Engineering Applications of Artificial Intelligence, vol. 12, pp.159-173,1999.

S. Kiartzis, A. Kehagias, A. Bakirtzis, V. Petridis, “Short term load forecasting using a Bayesian combination method”, Electrical Power & Energy Systems, vol. 19, no. 3, pp. 171-177, 1997.

D. I. Stratakis, T. M. Papazoglou, “Forecasting Yearly and Daily Load Demand for the Autonomous Electric Power System of Crete”, Proc. of the 36th Universities Power Engineering Conference (UPEC '01), 2001.

C. C. Neocleous, T. M. Papazoglou, C. N. Schizas, D. I. Stratakis, “Sensitivity Analysis of a Neural Network used for the Forecasting of Electric Power Load”, Proc. of the 34th Universities Power Engineering Conference (UPEC ’99), vol.1, Sept. 1999, pp. 225-228.

S. Kiartzis, C. Zoumas, J. Theoharis, A. Bakirtzis, V. Petridis, “Short Term Load Forecasting in an Autonomous Power System using Artificial Neural Networks”, IEEE Transactions on Power Systems, vol. 12, no.4, pp. 1591-1596, 1997.

B. Bitzer, F. Rosser, T. Papazoglou, “24 hours load forecasting for the energy management system on Crete online training and forecasting of load data”, Proc. of the 31th Universities Power Engineering Conference (UPEC ’96), pp.346-349.

G. Kariniotakis, “Short-Term Load Forecasting using a NeuroFuzzy Model based on Entropy Maximisation”, Proc. of Medpower 2002, 4-6 November, Athens.

V. Petridis, A. Kehagias, L. Petrou, A. Bakirtzis, S. Kiartzis, H. Panagiotou, and N. Maslaris, “A Bayesian Multiple Models Combination Method for Time Series Prediction”, Journal of Intelligent and Robotic Systems, vol. 31, no. 1-3, 2001, pp. 69-89.


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