Modelling of wind/Diesel/battery hybrid power systems for far North Cameroon

Nfah, Eustace Mbaka; Ngundam, J.M.

doi:10.1016/j.enconman.2008.01.007

Cited by 54 publications

(29 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Tchinda et al (2000) noted that the SWS in Cameroon decreased by approximately 0.8 m s −1 from 1991 to 1995. Similar results were also reported by Nfah and Ngundam (2008). In addition, Tchinda and Kaptouom (2003) Long-term reductions in SWS were mainly observed in Nigeria and Ethiopia.…”

Section: Africasupporting

confidence: 78%

Changes in terrestrial near-surface wind speed and their possible causes: an overview

et al. 2017

View full text Add to dashboard Cite

drag forces are caused by changes in the external and internal friction in the atmosphere. Changes in surface friction are mainly caused by changes in the surface roughness due to land use and cover change (LUCC), including urbanization, and changes in internal friction are mainly induced by changes in the boundary layer characteristics. Future studies should compare the spatio-temporal differences in SWS between high and low altitudes and quantify the effects of different factors on the SWS. Additionally, in-depth analysis of extreme SWS events and prediction of future mean and extreme SWS values at global and regional scales are also necessary. Abstract Changes in terrestrial near-surface wind speed (SWS) are induced by a combination of anthropogenic activities and natural climate changes. Thus, the study of the long-term changes of SWS and their causes is very important for recognizing the effects of these processes. Although the slowdown in SWS has been analyzed in previous studies, to the best of knowledge, no overall comparison or detailed examination of this research has been performed. Similarly, the causes of the decreases in SWS and the best directions of future research have not been discussed in depth. Therefore, we analyzed a series of studies reporting SWS trends spanning the last 30 years from around the world. The changes in SWS differ among different regions. The most significant decreases have occurred in Central Asia and North America, with mean linear trends of − 0.11 m s −1 decade −1 ; the second most significant decreases have occurred in Europe, East Asia, and South Asia, with mean linear trends of − 0.08 m s −1 decade −1 ; and the weakest decrease has occurred in Australia. Although the SWS in Africa has decreased, this region lacks long-term observational data. Therefore, the uncertainties in the long-term SWS trend are higher in this region than in other regions. The changes in SWS, caused by a mixture of global-, regional-, and localscale factors, are mainly due to changes in driving forces and drag forces. The changes in the driving forces are caused by changes in atmospheric circulation, and the changes in the Keywords

show abstract

Section: Africasupporting

confidence: 78%

Changes in terrestrial near-surface wind speed and their possible causes: an overview

et al. 2017

View full text Add to dashboard Cite

show abstract

“…Hybrid systems are diesel-based power mini-grids with wind turbines and/or solar photovoltaics and possibly battery energy storage in the system (Wies and Agrawal, 2005;van Alphen et al, 2007;Himri et al, 2008;Nfah and Ngundam, 2008). The emphasis of system design research is optimization for renewable energy penetration and/or pollution and cost reduction (Bernal-Agustin et al, 2006).…”

Section: Energy Systems In Island Countries and Remote Locationsmentioning

confidence: 98%

Strategic analysis methodology for energy systems with remote island case study

Krumdieck

Hamm

2009

Energy Policy

View full text Add to dashboard Cite

“…In fact, a number of studies on renewable hybrid energy systems have been performed in different parts of the world. For example, a hybrid power system based on wind, diesel and battery was modelled by Nfah and Ngundam [13] for power supply to remote areas in Cameroon using 4 years wind data for validation. The results indicate that hybrid systems are a better approach to increase access to electricity in the remote areas of Cameroon without expensive grid extension.…”

Section: Introductionmentioning

confidence: 99%