共查询到20条相似文献,搜索用时 186 毫秒
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在分析现有风/光互补发电系统研究的基础上,确定风机容量与PV组件容量在系统总容量中所占的比例;根据安装地点气候条件与地理条件、负载要求,估算出蓄电池的最低容量,并归纳设计各部件的数量和类型选择的约束关系;综合给出一种适合于风/光互补发电系统优化设计的模型。 相似文献
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介绍了独立开发的一种高性能风光互补控制器专为高端的小型风光互补系统设计,适用于风光互补路灯系统和风光互补监控系统,可以解决现有风光互补路灯的很多不足之处。 相似文献
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风光互补发电系统的优化设计(Ⅰ)CAD设计方法 总被引:5,自引:0,他引:5
给出了一整套利用CAD进行风光互补发电系统优化设计的方法.为了精确确定系统每小时的运行状态,采用了更精确地表征组件特性及评估实际获得的风光资源的数学模型.为了寻找出以最小设备投资成本满足用户用电要求的系统配置,首先在风力发电机容量固定不变的前提下,计算了与该容量风力发电机匹配的不同容量的PV方阵和蓄电池所组成的风/光/蓄组合的全年功率供给亏欠率LPSP,根据总的设备投资成本最小化的原则筛选出一组与该容量风力发电机对应的满足用户给定系统供电可靠性即LPSP值的风/光/蓄组合;然后通过改变风力发电机的容量,优选出多个与不同容量风力发电机对应的既能满足用户用电要求同时总的设备购置成本又是最低的风/光/蓄组合,比较它们的成本最终唯一确定出以最小投资成本满足用户用电要求的优化的系统配置. 相似文献
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一引言风光互补路灯是解决道路照明的一种理想自供电系统。“风光互补”是同时利用风能和太阳能进行发电的系统,两者具有良好的互补性,大大提高了发电系统的稳定性。风光互补路灯与传统路灯相比,具有以下优势(1)规划建设成本相同(部分路段甚至低于常规路灯建设成本);(2)运营成本低(不消耗电能,从需维护成本);(3)防盗措施可靠,安全性能高于普通路灯。 相似文献
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风光互补发电技术在路灯照明中的应用 总被引:1,自引:0,他引:1
风光互补发电系统是由风力发电机、光伏组件、控制器、蓄电池、负载等组成的微型发电系统。系统以控制器为核心,由风力发电机、光伏组件把风能和光能转变为电能并储存于蓄电池中供负载使用。风光互补发电技术在路灯供电方面的应用,能充分利用绿色环保的可再生能源,具有深远的社会效益和长远的经济效益。 相似文献
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Owing to the stochastic characteristic of natural wind speed, the output fluctuation of wind farm has a negative impact on power grid when a large-scale wind farm is connected to a power grid. It is very difficult to overcome this impact only by wind farm itself. A novel power system called wind-gas turbine hybrid energy system was discussed, and the framework design of this hybrid energy system was presented in detail in this paper. The hybrid energy system combines wind farm with several small gas turbine power plants to form an integrated power station to provide a relatively firm output power. The small gas turbine power plant has such special advantages as fast start-up, shutdown, and quick load regulation to fit the requirement of the hybrid energy system. Therefore, the hybrid energy system uses the output from the small gas turbine power plants to compensate for the output fluctuation from the wind farm for the firm output from the whole power system. To put this hybrid energy system into practice, the framework must be designed first. The capacity of the wind farm is chosen according to the capacity and units of small gas turbine power plants, load requirement from power grid, and local wind energy resource distribution. Finally, a framework design case of hybrid energy system was suggested according to typical wind energy resource in Xinjiang Autonomous Region in China. 相似文献
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Owing to the stochastic characteristic of natural wind speed, the output fluctuation of wind farm has a negative impact on
power grid when a large-scale wind farm is connected to a power grid. It is very difficult to overcome this impact only by
wind farm itself. A novel power system called wind-gas turbine hybrid energy system was discussed, and the framework design
of this hybrid energy system was presented in detail in this paper. The hybrid energy system combines wind farm with several
small gas turbine power plants to form an integrated power station to provide a relatively firm output power. The small gas
turbine power plant has such special advantages as fast start-up, shutdown, and quick load regulation to fit the requirement
of the hybrid energy system. Therefore, the hybrid energy system uses the output from the small gas turbine power plants to
compensate for the output fluctuation from the wind farm for the firm output from the whole power system. To put this hybrid
energy system into practice, the framework must be designed first. The capacity of the wind farm is chosen according to the
capacity and units of small gas turbine power plants, load requirement from power grid, and local wind energy resource distribution.
Finally, a framework design case of hybrid energy system was suggested according to typical wind energy resource in Xinjiang
Autonomous Region in China. 相似文献
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As the capacity of wind and photovoltaic (PV) generation systems increases, wind-PV capacity coordination for a time-of-use (TOU) rate industrial user may become an important problem. This coordination can maximise the economic benefits of investing in a wind generation system and a PV generation system. An evolutionary particle swarm optimisation approach to solve the wind-PV capacity coordination for a TOU rate industrial user is proposed. A benefit-cost ratio (BCR) is used to evaluate the economic benefit of investing in wind and PV generation systems for a TOU rate industrial user. The optimal contract capacities and the optimal installed capacities of the wind and PV generation systems for a TOU rate industrial user are obtained. The BCR of investing in wind and PV generation systems are maximised. Test results illustrate the merits of the proposed approach and help determine the impact of changes in electricity cost and capital cost on wind-PV capacity coordination for a TOU rate industrial user. 相似文献
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作为衡量风电机组质量优劣的关键性经济指标,风电机组整个使用寿命周期内的运维费用,有必要纳入到风电机组招标评价体系中,杜绝投标过程中的低价竞争现象。通过建立风电机组质量量化评价体系,引导厂商提升质量,为业主提供产品选择标准,为金融保险提供评估依据。 相似文献
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风电与燃气轮机发电互补系统结构与容量配比的研究 总被引:1,自引:0,他引:1
对在我国新疆地区采用风力发电与燃气轮机发电组成的互补发电系统的结构和在一定风能资源条件下两种发电系统的容量配比进行了研究。论文首先针对实测的新疆达坂城风电场的风速数据,采用整体风电场功率输出模型,得到了风电场的输出与分布。根据实际的风电场输出负荷,设计了互补中燃气轮机的几种方案。针对燃气轮机的部分负荷运行特点,设计了不同方案的互补运行规则。最后根据不同运行规则,计算了互补系统的整体特性,得到了在一定条件下风电与燃气轮机发电较合适的容量配比。 相似文献
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The performance of a hybrid wind–solar power plant in southwestern Minnesota is modeled for a 2-yr period using hourly wind and solar insolation data. The wind portion of the plant consists of four interconnected wind farms within a radius of 90 km. The solar component of the plant is a parabolic trough solar thermal electric generating system using a heat transfer fluid that drives a steam turbine. The market value of energy produced, retail value of energy produced, and levelized cost of energy of the hybrid plant are compared to those of an energy equivalent wind-only plant. Results show that adding solar thermal electric generating capacity to a wind farm rather than expanding with additional wind capacity provides cost–benefit trade-offs that will continue to change as the two technologies evolve. At the present time, we find that capital cost and levelized cost of energy favor a wind-only plant while electric load matching favors a hybrid wind–solar plant. Regional differences in the solar resource in the US influence the economic viability of the hybrid plant, and a comparison using the present model is made with one location in the Southwest. The hourly data analysis presented here is a possible tool for evaluating the overall economic feasibility and generating characteristics for a hybrid wind–solar thermal electric power plant for any location with available wind, solar, electric load, and price data. 相似文献
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In this paper, we perform Simulated Annealing (SA) algorithm for optimizing size of a PV/wind integrated hybrid energy system with battery storage. The proposed methodology is a heuristic approach which uses a stochastic gradient search for the global optimization. In the study, the objective function is the minimization of the hybrid energy system total cost. And the decision variables are PV size, wind turbine rotor swept area and the battery capacity. The optimum result obtained by SA algorithm is compared with our former study’s result. Consequently, it is come up with that the SA algorithm gives better result than the Response Surface Methodology (RSM). The case study is realized for a campus area in Turkey. 相似文献
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基于分级模糊控制风力太阳能混合发电控制系统的研究 总被引:1,自引:0,他引:1
针对分散式风力太阳能混合发电系统的特点,提出了基于分级模糊控制器的风力太阳能混合发电能量管理控制方法,设计了一四级分级模糊控制器来实现对系统的能量管理和控制;并对所设计的能量管理系统进行了仿真研究,仿真结果表明所设计的控制器具有良好的控制性能,证明此方案是可行的。 相似文献