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WIREs Energy Environ.

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Reliability analysis of offshore grids—An overview of recent research

Focus Article

Bart W. Tuinema, Reinout E. Getreuer, José L. Rueda Torres, Mart A. M. M. van der Meijden

Published Online: Jun 21 2018

DOI: 10.1002/wene.309

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For the future, a large‐scale expansion of offshore wind energy is expected in Europe. To collect this wind energy and to enable electricity trading between countries, an offshore network will be implemented in the North Sea. Maintaining a high level of security of supply at affordable costs is one of the key objectives in the design and operation of power systems and therefore, the reliability of offshore grids is an important topic of discussion. Whereas onshore, the security of supply is assured by reliability criteria like n‐1 redundancy, the same n‐1 redundancy might not be an economical solution for offshore networks. For todays (small) offshore networks, n‐1 redundancy is hardly economically justifiable, seen from a wind farm owner's point of view. The question then arises how the reliability of large‐scale offshore networks should be evaluated and what measures can be taken to maintain a high security of supply onshore. This paper aims at discussing this topic by reviewing the results of recent research work. It is found that whereas for smaller offshore networks reliability evaluation is mainly an economic analysis seen from a wind farm owner's point of view, for large‐scale offshore networks, it is necessary to consider the interaction of offshore–onshore networks in reliability analysis. It is proposed to analyze the reliability of combined offshore–onshore power systems in an integrated approach, such that various (offshore and onshore) measures can be considered to find the most economical solution. This article is categorized under: Wind Power > Systems and Infrastructure Energy Infrastructure > Systems and Infrastructure Energy Systems Economics > Systems and Infrastructure

Connection of offshore wind farms and submarine interconnections

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Overview of the causes of power imbalance (1‐hr time frame, 3‐GW installed wind capacity; Tuinema et al., )

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Schematic overview of the studied system (Tuinema et al., )

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Schematic overview of the study approach (Tuinema et al., )

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Offshore network configurations considered in the study by Tuinema et al. ()

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Net present value (NPV) comparison of the BC1 and BC1 & HC1 configuration as a function of energy price and offshore cable length (Getreuer et al., )

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Amount of saved energy for different branch coupler capacities (Getreuer et al., )

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Net present value (NPV) of different configurations (per 350‐MW connection; Getreuer et al., )

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Lost and saved energy for different branch and hub coupler configurations (Getreuer et al., )

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Overview of the net present value (NPV) method (Getreuer et al., )

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Overview of near‐shore grid configurations with optional branch and hub couplers (Getreuer et al., )

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Hub‐at‐sea principle explained with power duration curves

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Characteristics of an offshore wind farm

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Two possible configurations of near‐shore wind farms

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Possible development of offshore networks in the North Sea

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References

Athamna,, I., Zdrallek,, M., Wiebe,, E., & Koch,, F. (2014). Sensitivity analysis of offshore wind farm topology based on reliability calculation. Paper presented at the International Conference on Probabilistic Methods applied to Power Systems. PMAPS14. Durham, UK: IEEE. https://doi.org/10.1109/PMAPS.2014.6960609
Banzo,, M., & Ramos,, A. (2011). Stochastic optimization model for electric power system planning of offshore wind farms. IEEE Transactions on Power Systems, 26, 1338–1348. https://doi.org/10.1109/TPWRS.2010.2075944
Billinton,, R., & Allan,, R. N. (1996). Reliability evaluation of power systems (2nd ed.). New York, NY: Plenum Press. https://doi.org/10.1007/978-1-4899-1860-4
Bresesti,, P., Kling,, W. L., Hendriks,, R. L., & Vailati,, R. (2007). HVDC connection of offshore wind farms to the transmission system. IEEE Transactions on Energy Conversion, 22, 37–43. https://doi.org/10.1109/TEC.2006.889624
Dahmani,, O., Bourguet,, S., Machmoum,, M., Guerin,, P., & Rhein,, P. (2014). Reliability analysis of the collection system of an offshore wind farm. Paper presented at the IEEE 9th Internation Conference on Ecological Vehicles and Renewable Energies (EVER14). Monte‐Carlo, Monaco: IEEE. https://doi.org/10.1109/EVER.2014.6844149
de Decker,, J., Woyte,, A., Schödwell,, B., Völker,, J., & Srikandam,, C. (2009). Directory of offshore grid initiatives. Studies %26 Organisations OffshoreGrid. (Technical report). Available at: www.offshoregrid.eu
Ecofys. (2017). In Müller M, Haesen E, Ramaekers L, Verkaik N, eds. Translate COP21: 2045 outlook and implications for offshore wind in the North Seas. Utrecht, The Netherlands: Ecofys.
Ergun,, H., van Hertem,, D., & Belmans,, R. (2012). Transmission system topology optimization for large‐scale offshore wind integration. IEEE Transactions on Sustainable Energy, 3(4), 908–917. https://doi.org/10.1109/TSTE.2012.2199341
European Commission on Climate Action. (2006). Vision and strategy for European electricity networks for the future. Retrieved from http://ec.europa.eu/
European Commission on Climate Action. (2009). 2020 climate and energy package. Retrieved from http://ec.europa.eu/
European Wind Energy Association. (2015). Wind energy scenarios for 2030. Retrieved from https://www.ewea.org/.../EWEA-Wind-energy-scenarios-2030.pdf
Getreuer,, R. E., Tuinema,, B. W., Rueda Torres,, J. L., & van der Meijden,, M. A. M. M. (2016). Multi‐parameter approach for the selection of preferred offshore power grids for wind energy. Paper presented at the IEEE International Energy Conference, EnergyCon2016, Leuven, Belgium. https://doi.org/10.1109/ENERGYCON.2016.7514124
Hennig,, T., von Bonin,, M., Rohrig,, K., Stock,, S., & Hofmann,, L. (2016). Investigation on reliability‐driven network expansions of offshore transmission systems. Paper presented at the IEEE Innovative Smart Grid Technologies—Asia (ISGT‐Asia), Melbourne, Australia. https://doi.org/10.1109/ISGT-Asia.2016.7796462
Huang,, L., & Fu,, Y. (2010). Reliability evaluation of the offshore wind farm. Paper presented at the IEEE Power and Energy Engineering Conference (APPEEC10). Chengdu, China: IEEE. https://doi.org/10.1109/APPEEC.2010.5449007
Khuntia,, S. R., Tuinema,, B. W., Rueda Torres,, J. L., & van der Meijden,, M. A. M. M. (2016). Time horizons in the planning and operation of transmission networks: An overview. IET Generation, Transmission %26 Distribution, 10(4), 841–848. https://doi.org/10.1049/iet-gtd.2015.0791
Leita da Silva,, A. M. L., Sales,, W. S., da Fonseca Manso,, L. A., & Billinton,, R. (2010). Long‐term probabilistic evaluation of operating reserve requirements with renewable sources. IEEE Transactions on Power Systems, 25, 106–116. https://doi.org/10.1109/TPWRS.2009.2036706
Li,, W. (2005). Risk assessment of power systems ‐ models, methods, and applications. Piscataway, NJ, USA: Wiley‐IEEE Press.
Liu,, X., & Islam,, S. (2008). Reliability issues of offshore wind farm topology. Paper presented at the 10th International Conference on Probabilistic Methods Applied to Power Systems, PMAPS08. Rincon, Puerto Rico: IEEE.
Lumbreras,, S., & Ramos,, A. (2013). Optimal design of the electrical layout of an offshore wind farm applying decomposition strategies. IEEE Transactions on Power Systems, 28, 1434–1441. https://doi.org/10.1109/TPWRS.2012.2204906
MacIver,, C., Bell,, K. R. W., & Nedić,, D. P. (2016). A reliability evaluation of offshore HVDC grid configuration options. IEEE Transactions on Power Delivery, 31(2), 810–819. https://doi.org/10.1109/TPWRD.2015.2437717
Rohrig,, K., & Lange,, B. (2007). Improvement of the power system reliability by prediction of wind power generation. Paper presented at the IEEE Power Engineering Society General Meeting (PES‐GM07). Tampa, FL, USA: IEEE. https://doi.org/10.1109/PES.2007.385456
Torbaghan,, S. S., Gibescu,, M., Rawn,, B., & van der Meijden,, M. A. M. M. (2015). A market‐based transmission planning for HVDC grid—Case study of the North Sea. IEEE Transactions on Power Systems, 30(2). March 2015 https://doi.org/10.1109/TPWRS.2014.2332762
Trötscher,, T., & Korpås,, M. (2011). A framework to determine optimal offshore grid structures for wind power integration and power exchange. Wind Energy, 14, 977–992. https://doi.org/10.1002/we.461
Tuinema,, B. W., Gibescu,, M., & Kling,, W. L. (2010). Availability evaluation of offshore wind energy networks within the Dutch power system. Paper presented at the IEEE Joint IAS/PELS/PES Benelux Chapter, Young Researchers Symposium: Smart Sustainable Power Delivery, 2010. YRS ‘10, Leuven, Belgium.
Tuinema,, B. W., Rueda Torres,, J. L., & van der Meijden,, M. A. M. M. (2015). Network redundancy versus generation reserve in combined onshore‐offshore transmission networks. Paper presented at the IEEE PowerTech2015, Eindhoven, the Netherlands. https://doi.org/10.1109/PTC.2015.7232416
van der Meijden,, M. A. M. M. (2012). A sustainable and reliable electricity system; Inevitable and challenging. (Inauguration speech). Delft University of Technology, Netherlands.
Zhang,, Y., & Chowdhury,, A. A. (2009). Reliability assessment of wind integration in operating and planning of generation systems. Paper presented at the IEEE Power & Energy Society General Meeting (PES‐GM09). Calgary, AB, Canada: IEEE. https://doi.org/10.1109/PES.2009.5275532
Zhao,, M., Chen,, Z., & Blaabjerg,, F. (2009). Optimisation of electrical system for offshore wind farms via genetic algorithm. IET Renewable Power Generation, 3, 205–216. https://doi.org/10.1049/iet-rpg:20070112

Further Reading

Tuinema,, B. W. (2017). Reliability of transmission networks—Impact of EHV underground cables %26 interaction of offshore‐onshore networks. (PhD Dissertation). Delft University of Technology.

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