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Offshore wind farm has been one of the most effective ways to wind energy exploitation, and many new technical and economic problems are brought with development of large offshore wind farms. Electric distribution system plays an important role in reliable operation of large offshore wind farm and holds considerable proportion in total investment, so that optimization of the system is one of the key...
Increasing integration of wind power into electric power system has changed conventional operation, reserve capacity and reliability of the system. This paper analyzes the impact that wind power brings to distribution system on its reliability with application of analytic methods. Capacity models are proposed to represent wind power generators. A case study is given with different wind energy conditions,...
This paper presents a new approach for substation planning. As more influences of substation on people, society and environment have been concerned, substation planning must be carried out according to the corresponding factors, besides economic cost. Geographical property of substation site is introduced in the consideration, which is denoted to the relationship of the site and its social, economic...
This paper examines the different dimensions of scaffolding for online historical inquiry based on a case study of two secondary-two history classes from a neighborhood school in Singapore. The data collected for the study include video and screen captures, focus group interview, digital artifacts, and students’ survey. Using sample transcripts and observation extracts, the authors discuss how the...
This paper first presents development tendency and the importance of internal electric connection system of offshore wind farms. As internal electric connection system plays an important role in reliable operation of wind farm and holds considerable proportion in total investment, optimization of the system is one of the key problems in development of offshore wind farms. Based on analysis of main...
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