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广州地区薄膜光伏并网电站性能研究 总被引:2,自引:0,他引:2
对3个薄膜光伏并网电站(12dTe、CIGS、a-Si,以下简称电站)进行了描述,对2008年2月~2009年1月的数据进行了分析.根据设计,电站每3min采集一次数据.对一年中3个电站的年发电量、月发电量、太阳辐照、光伏阵列的功率、电站效率、电站的功率损失进行了对比分析.对2008年3月21日(阴天)和24日(晴天)逆变器的工作状况进行了分析.结果表明:在2008年中,CdTe、CIGS、a-Si 3个电站每千瓦的发电量依次为994.74、954.42、936.07kWh.CdTe电站在2008年中发电量最多.通过对3个电站每个月发电量的分析发现温度对CIGS电站的发电量影响较大,适合在气温较低的地区使用.最后指出通过优化太阳电池的质量可以优化温度系数,也可以通过新颖的设计改善电站和太阳能组件(简称组件)的散热从而提高电站的效率. 相似文献
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PATRICK JOURDE 《国际可持续能源杂志》2013,32(1-4):129-137
Stand alone systems represent more than 80% of the market and are most often used in isolated and less developed areas. They are used for three types of applications: service application, isolated buildings, islands and small communities. The three topics are complementary: technology maturity is the result of service application experience; island systems have to supply main collective needs and economic activities in “solarized areas, PV houses will be the “Pace Setter” Rural electrification and consumer products appear as the most promising market in the near future. New simple conditions have to be met to start this market for the benefit of remote areas in developed and developing countries. Twenty one suggestions for a 21st solar century are presented, including three kinds of problems:Financial: save, transfer, lend money, take off the tax, subsidy panels, reduce distribution cost; Technical: high efficiency appliances, high quality components, long and harmonise life-time, simplify wiring, modularity and simple information. Human: attractive appliances, installation own, pay, install, maintain by users An international programme to give a minimum of conveniences to 2 to 3 billion inhabitants is possible with the money saved by replacing all former solutions. The 21 suggestions allowing such as international programme have still to be brought together. 相似文献
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新的地域并网式太阳能发电系统的电力经济分析与设计 总被引:3,自引:1,他引:3
提出一种新的地域并网式太阳能发电系统,即带有电力存储系统的地域并网式太阳能发电系统。从电力的有效利用、经济性的角度对这种新的地域并网式太阳能发电系统进行了研究,提出了系统的设计以及选定电力存储系统存储容量的方法,然后针对不同的条件选择了相应的电力存储系统的容量。 相似文献
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With increased focus on renewable energy in our modern era, it is increasingly important to understand the impact of policies on the performance and reliability of regional energy systems. This research develops a model to understand how geographic dispersion of PV installations impacts the reliability of electricity generated from the total PV network, measured by the variance of the distribution of generated electricity. Using NREL data, beta probability distributions of sunlight (kWh/m2/day) in various regions of Virginia are estimated using a fitting method that minimizes the Kolmogorov–Smirnov test statistic. A Monte Carlo simulation model is developed to measure PV electricity generation from multiple centralized and dispersed configurations over 100,000 days of probabilistic sunlight. 相似文献
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The autonomous PV systems cover a wide area of the applications that can be developed in the country, in places far from the national grid and with a low demand of electric power. The electrification of homes and farms in rural areas by using PV systems would contribute to improving the inhabitants' social, economic and cultural standard.In Romania, it is estimated that there are about 10,000 homes, farms and schools located in more than 500 settlements which could be electrified by using PV systems. The individual solar home systems would allow each user to adjust his own electricity consumption according to weather variations. A major problem in the development of these systems is the identification of the optimum technical and economic solutions as well as of the main financing sources. The paper aims to present the technical, economic and social problems involved by the implementation of such a project of PV-based electrification in Romania, presenting the particular case of two settlements (Scarisoara and Prisacina) located in the Cerna Valley - the Banat Mountains. 相似文献
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基于NSGA-Ⅱ的风光互补独立供电系统多目标优化 总被引:5,自引:2,他引:5
在风光互补独立供电系统的设计中,系统的优化配置是一个重要步骤。风光资源、发电、储能和负载之间有复杂的匹配关系。风光互补独立供电系统的优化配置可看作一个多目标优化问题,两个相互冲突的目标是极大化供电可靠性和极小化成本,供电可靠性指标负载缺电率LPSP需经仿真运行得到。优化算法采用精英非支配解排序遗传算法(NSGA-Ⅱ),决策变量不仅有传统算法中的光伏电池和蓄电池的容量,还增加了风力发电机的类型和容量以及光伏电池的倾角。经传统算法及ε-约束法验证表明,NSGA-Ⅱ得出的非支配解前沿面就是Pareto前沿面。 相似文献
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This paper presents dispatch strategies for the operation of a solar photovoltaic (PV)–diesel–battery hybrid power system using ‘set points’. This includes determination of the optimum values of set points for the starting and stopping of the diesel generator to minimise the overall system costs. A computer program for a typical dispatch strategy has been developed to predict the long-term energy performance and the lifecycle cost of the system. 相似文献
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报道了太阳电池供电的冰箱及照明系统,其变频电路采用一种新型的全数字式SPWM调制方式,可对压缩机进行无级调速,实现电冰箱温度的自动控制和连续运行,具有明显的优点。 相似文献
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光伏发电及风力发电系统中铅蓄电池的建模 总被引:1,自引:0,他引:1
阐述了独立的光伏发电及风力发电系统中常用的铅蓄电池模型,特别提出了谢菲尔德模型,费西纳里模型及ITE模型,对各模型进行了比较并指出其尚存在的问题。 相似文献
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