期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
电力市场中抽水蓄能电站的生产成本评估与水库的优化利用策略 被引量:7
1
作者 龙军 《电网技术》 EI CSCD 北大核心 2004年第12期62-65,共4页
文章应用蒙特卡罗随机模拟理论提出了抽水蓄能电站的生产成本随机模型,该成本模型依据两个概率:机组的强迫停机率和机组市场竞标的落标率。并在生产成本随机模型的基础上提出了抽水蓄能电站生产成本评估的数学模型,探讨了在竞争的条件... 文章应用蒙特卡罗随机模拟理论提出了抽水蓄能电站的生产成本随机模型,该成本模型依据两个概率:机组的强迫停机率和机组市场竞标的落标率。并在生产成本随机模型的基础上提出了抽水蓄能电站生产成本评估的数学模型,探讨了在竞争的条件下抽水蓄能电站水库动态利用策略,包括发电机组的最优发电策略和抽水机组的最优抽水策略。文章还给出了基于随机理论和最优化方法的解决这个多级优化问题的可行算法,并结合一个仿真实例,阐明了抽水蓄能水库的市场竞标和利用策略。 展开更多
关键词 抽水蓄能电站 电力市场 生产成本评估 水库 优化利用策略 数学模型
下载PDF
Economic Viability of Production of Tree Parica (Schizolobium amazonicum Huber ex. Ducke) of Reforestation Project in the Municipality Paragominas-PA, Brazil
2
作者 Manoel Tavares de Paula Altem Nascimento Pontes +4 位作者 Helio Raymundo Ferreira Filho Lucy Anne Cardoso Lobao Gutierrez Ismael Matos da Silva Maria da Conceicao Silva Damasceno Aline Lima de Sena 《Journal of Life Sciences》 2014年第12期967-971,共5页
The objective of this study was to analyze the profitability of production Parica reforestation in the municipality of Paragominas-PA. The study was conducted in the municipality of Paragominas Messoregiao located in ... The objective of this study was to analyze the profitability of production Parica reforestation in the municipality of Paragominas-PA. The study was conducted in the municipality of Paragominas Messoregiao located in the northeast of Para. The basic data used in the economic evaluation of production of planting parica (costs and revenues) were derived from primary source through raising production cost of parica with farmers from the municipality, analyzing the period of production horizon of seven years. The discount rate chosen for economic evaluation was 10% per year. NPV (net present value) calculation IRR (internal rate of return), BCR (benefit-cost ratio) and EP (break-even point). To check the economic feasibility of producing parica the following criteria were used for economic analysis. The results for NPV, IRR and BC ratio were respectively of $495,970, 28.83% and 2.43. For EP (break-even point) the value of 41.08% was found, which demonstrates the minimum amount of production, so that revenue equals costs. Based on the results obtained, it was found that the reforestation model with parica proposed in this paper presents economically viable for deployment. 展开更多
关键词 AMAZON parica REFORESTATION
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部