IEA PVPS Task 8: Project Proposals on Very Large Scale Photovoltaic Power Generation (VLS-PV) Systems in Deserts

Komoto, Keiichi; Kurokawa, Kosuke; Nishimura, Taku; Kato, Kazuhiko; Otani, Kenji; Ito, Masakazu; Ermer, M.; Beneking, C.; Kalenbach, G.; Weltzien, K.; Otto, Daniel; Schneider, Christoph; Nowicki, T.; Beneking, Andreas; Vleuten, P. Der; Verhoef, L.A.; Bessaı̈s, B.; Arraras, M.; Itoiz, C.; Olite, M.; Ganiguer, J.; Faiman, D.; Raviv, Daniel; Rosenstreich, R.; Enebish, N.; Song, Jinju; Wang, S.; Ma, Suli; Singh, D.; MacDonald, J.M.; Hansen, T.; Hayden, H.; Paletta, F.; Sarno, A.

doi:10.1109/wcpec.2006.279665

Cited by 6 publications

(5 citation statements)

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“…Large-scale photovoltaic power plants 1 (LS-PVPPs) must include a control system to fulfill the interconnection requirements specified by the transmission system operators (TSOs). These requirements, defined in the so-called grid codes, usually specify a set of grid services that LS-PVPPs must provide [3].…”

Section: Introductionmentioning

confidence: 99%

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Over-frequency support in large-scale photovoltaic power plants using non-conventional control architectures

Madorell-Batlle

Bullich‐Massagué

Cheah-Mañé

et al. 2021

International Journal of Electrical Power & Energy Systems

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Section: Introductionmentioning

confidence: 99%

“…Despite there is not a clear definition about what is considered a LS-PVPPs, it is well accepted that they are power plants from several MW to GW scale[1]. For example, the National Renewable Energy Laboratory (NREL) sets the threshold at 5 MW[2].Preprint submitted to Journal of Electrical Power and Energy SystemsDecember22, 2020 …”

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confidence: 99%

Over-frequency support in large-scale photovoltaic power plants using non-conventional control architectures

Madorell-Batlle

Bullich‐Massagué

Cheah-Mañé

et al. 2021

International Journal of Electrical Power & Energy Systems

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“…PVPP are classified according to their generation capacity in: small scale (between 250 kW and 1 MW), medium scale (between 1 and 100 MW), and large scale (above 100 MW). 21 PVPP environmental impact studies using the life cycle assessment method are vast for small and medium-scale power plants in the past two decades. [22][23][24][25][26][27] However, studies on large-scale power plants are still rare in literature.…”

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confidence: 99%

Energy balance and carbon footprint of verylarge‐scalephotovoltaic power plant

Pamponet

Maranduba²,

Neto

et al. 2021

Intl J of Energy Research

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Summary Considering Brazil an important player in the global market for the electricity production from solar sources and the recent investments in large power plants through public policies, this work evaluated a very large‐scale commercial photovoltaic power plant (VLS‐PVPP) performing an attributional life cycle assessment (LCA) in accordance with ISO 14040/44 standards. The comparative results obtained, for 18 impact categories, show that the use of global data tends to overestimate the impacts of energy production in the VLS‐PVPP implemented in Brazil, by at least double. When establishing scenarios for different regions of the Brazilian territory, the energy performance and emissions indicators used varied around 17% due to the high sensitivity of the solarimetric radiation index in the modeling. The carbon footprint ranged between 38.3 and 44.8 kgCO2eq/kWh, and the energy payback time (EPBT) ranged between 4.5 and 5.3 years. The fossil energy replacement ratio (FER) indicator was calculated to quantify the power plant sustainability, which, in the best scenario, showed that the system replenishes, with clean energy, 7.7 times the fossil energy used in its construction. The sensitivity study associated with the uncertainty analysis for the manufacturing location of photovoltaic modules showed little influence (about 1%) on these indicators, showing that the decision to import or manufacture PV modules does not involve an environmental bias, overturning this hypothesis. Furthermore, the sensitivity study of the photovoltaic modules showed that the multicrystalline silicon technology is still the best choice compared to the monocrystalline one, since the latter increased the environmental cost of the evaluated indicators by 20%.

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“…Note that distribution networks have technical constraints for the integration of large amount of generation, hence LS-PVPPs are rarely connected to these networks [13]. Despite there is not a clear definition about what is considered a LS-PVPPs, it is well accepted that they are power plants from several MW to GW scale [14]. For example, the National Renewable Energy Laboratory (NREL) sets the threshold at 5 MW [15].…”

Section: Classificationmentioning

confidence: 99%

Feeder flow control and operation in large scale photovoltaic power plants and microgrids : Part I Feeder ow control in large scale photovoltaic power plants : Part II Multi-microgrids and optimal feeder ow operation of microgrids

Massagué¹

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This thesis deals with the integration of photovoltaic energy into the electrical grid. For this purpose, two main approaches can be identified: the interconnection of large scale photovoltaic power plants with the transmission network, and the interconnection of small and medium-scale photovoltaic installations with the distribution network. The first part of the thesis is focussed on the interconnection of large scale photovoltaic power plants. Large scale photovoltaic power plants are required to provide different ancillary services to the electrical networks. For this purpose, it is necessary to control the active and reactive power injected by photovoltaic power plants at the point of interconnection, i.e. to control the power flow through the main feeder. In this direction, it is developed a central controller capable of coordinating the different devices of the photovoltaic power plants as photovoltaic inverters, FACTS, capacitor banks and storage. The second part is focused on the distributed generation, consisting on small and medium-scale generation facilities connected to the distribution system. In this context, distribution grids, traditionally operated as passive systems, become active operated systems. In this part, the microgrid concept is analysed, which is one of the most promising solutions to manage, in a coordinated manner, the different distributed energy resources. Taking into account the possible transformation of the current distribution system to a multi-microgrid based system, the different architectures enabling microgrids interconnections are analysed. For the multi-microgrid operation, it could result interesting that a portion of their networks operate so that the power exchange is maintained constant, i.e. controlling the power flow at the main feeder. In this thesis, an optimal power flow problem formulation for managing the distributed generation of these feeder flow controlled microgrids is proposed. La present tesi tracta de la integració d'energia fotovoltaica en xarxes elèctriques. Per a tal finalitat, es poden identificar dues grans tendències en l'actualitat: la interconnexió de grans plantes de generació en la xarxa de transport (alta tensió), i la interconnexió de petites i mitjanes instal·lacions en la xarxa de distribució (mitja i baixa tensió). La primera part s'enfoca a la interconnexió de grans plantes de generació fotovoltaica. Degut als canvis dels darrers anys en el mix de generació elèctrica, les grans plantes de generació fotovoltaica es veuen obligades a donar diversos serveis de suport a les xarxes elèctriques. Per a aquesta finalitat, resulta necessari controlar la potencia activa i reactiva que la planta injecta en el punt de connexió, és a dir, controlar la potencia en la línia d’alimentació principal, feeder. En aquest sentit, es desenvolupa un controlador central capaç de coordinar els diferents elements de les plantes fotovoltaiques com els inversors fotovoltaics, FACTS, bancs de condensadors i bateries d'emmagatzematge. La segona part s'enfoca a l'anomenada generació distribuïda, de la que formen part les petites instal·lacions generadores connectades a la xarxa de distribució. En aquest context, aquestes xarxes passen de ser operades de forma passiva a forma activa. En aquesta part s'analitza el concepte de microxarxa, una de les solucions més prometedores per gestionar els diferents recursos distribuïts. Donat que es pot esperar una transformació del sistema de distribució actual a un sistema basat en multi-microxarxes, s'analitzen les diferents arquitectures amb les quals aquestes es poden interconnectar. Per la operació de multi-microxarxes pot resultar interessant que algunes microxarxes operin de forma que la potencia intercanviada amb la xarxa externa sigui constant, és a dir, controlant el flux de potencia de la línia d’alimentació principal. En aquesta tesi es realitza la formulació d'un problema d’optimització de fluxos de potencia per gestionar la generació distribuïda d'aquestes microxarxes.

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IEA PVPS Task 8: Project Proposals on Very Large Scale Photovoltaic Power Generation (VLS-PV) Systems in Deserts

Cited by 6 publications

References 0 publications

Over-frequency support in large-scale photovoltaic power plants using non-conventional control architectures

Over-frequency support in large-scale photovoltaic power plants using non-conventional control architectures

Energy balance and carbon footprint of verylarge‐scalephotovoltaic power plant

Feeder flow control and operation in large scale photovoltaic power plants and microgrids : Part I Feeder ow control in large scale photovoltaic power plants : Part II Multi-microgrids and optimal feeder ow operation of microgrids

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