共查询到19条相似文献,搜索用时 484 毫秒
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雷永强 《电网与水力发电进展》2014,30(11):135-139
将分布式储能系统(Distributed Energy Storage System,DESS)应用于独立风光互补系统中,设计了相应的储能控制器,采用电压外环和电流内环的控制方法控制系统直流母线的电压稳定。采用Matlab/Simulink仿真软件,对DESS及其控制器进行了仿真,结果表明,DESS可以维持风/光互补发电系统直流母线电压的稳定,保证系统负荷的可靠供电。 相似文献
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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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风/光互补家用电源系统的风力发电机和太阳能电池方阵输出功率轻优化配置后可以使系统在更为经济的状况下运行。本文提出风电和光电输出的数学描述,并以此建立优化模型,结果使得风/光互补发电系统较之单纯依靠太阳能电池供电的成本有大幅度下降。 相似文献
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30千瓦风/光互补联合发电系统 总被引:6,自引:2,他引:6
风/光互补发电系统利用风能、太阳能的互补特性,可提高系统供电的稳定怀和可靠性,减小储能蓄电池的容量,降低系统成本,30kW风/光互补联合发电系统已在山东省即墨市小管岛安装运行。该系统包括五台5kW风力发电机,5040WP光电池、220KWh蓄电池、30kVA逆变器等。本文介绍了该系统的组成和参数,控制策略、运行方式以及数据采集与处理系统,并给出了性能试验结果。 相似文献
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为了提高独立能源发电的可靠性与运行效率,结合光水发电系统的混合发电模式,搭建出光水混合发电系统的优化模型,并基于改进型粒子群优化算法(CPSO)对混合光水发电系统进行仿真计算,比较了混合发电与单一发电系统中传输功率及效益。结果表明,通过对光水混合发电系统中水电优化,解决了光伏发电不稳定问题,更好地利用了太阳能与水电资源优化互补的特性,实现了效益最大化。 相似文献
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为解决水风光并网发电中弃风、弃光问题,提出了水光风互补发电方式,在允许互补发电系统有一定的弃风光率的条件下,以系统弃风光电量最小和接入的风光总规模最大为目标,采用C#语言建立了水光风互补发电系统容量优化模型,以计算水电站可接入的风光项目的最优比例和容量配置。最后以岗托水电站及周边风光资源为例进行了实例分析。结果表明,在满足模型最优准则的条件下,水电站应尽可能少地接入风电,较多地接入光伏发电。系统弃风光率分别为5%、8%、10%时,岗托水电站接入的风光项目最优比例均为0.5∶1,可接入的风光总规模分别为50.14×10~4、83.27×10~4、148.81×10~4kW,可分别送出风光总电量7.74×10~8、12.46×10~8、21.76×10~8kW·h,送出通道利用率分别提高了8.05%、12.95%、22.64%。研究成果可用于指导水光风互补发电。 相似文献
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《Energy Conversion, IEEE Transaction on》2009,24(1):163-172
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This study presents an optimized design of microgrid (MG) in distribution systems with multiple distributed generation (DG) units under different market policies such as pool/hybrid electricity market.Proposed microgrid includes various energy sources such as photovoltaic array and wind turbine with energy storage devices such as battery bank.In this study, microgrid is considered as independent power producer company (IPP) in power system. Price of selling/buying power in on-peak or off-peak for MG, DG and upstream power system (DISCO) under pool/bilateral/hybrid electricity market are different. In this study, particle swarm optimization (PSO) algorithm has been implemented for the optimization of the microgrid cost. The costs include capital cost, replacement cost, operation and maintenance costs and production cost for microgrid and DGs. Then, an objective function to maximize total net present worth (NPW) is presented. PSO approach is employed to obtain the minimum cost of microgrid, during interconnected operation by optimizing the production of local DGs and power exchanges with the main distribution grid. The optimization algorithm is applied to a typical LV network operating under different market policies. 相似文献
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Generation unit sizing and cost analysis for stand-alone wind,photovoltaic, and hybrid wind/PV systems 总被引:11,自引:0,他引:11
Kellogg W.D. Nehrir M.H. Venkataramanan G. Gerez V. 《Energy Conversion, IEEE Transaction on》1998,13(1):70-75
This paper presents the results of investigations on the application of wind, photovoltaic (PV), and hybrid wind/PV power generating systems for utilization as stand-alone systems. A simple numerical algorithm has been developed for generation unit sizing. It has been used to determine the optimum generation capacity and storage needed for a stand-alone, wind, PV, and hybrid wind/PV system for an experimental site in a remote area in Montana with a typical residential load. Generation and storage units for each system are properly sized in order to meet the annual load and minimize the total annual cost to the customer. In addition, an economic analysis has been performed for the above three scenarios and is used to justify the use of renewable energy versus constructing a line extension from the nearest existing power line to supply the load with conventional power. Annual average hourly values for load, wind speed, and insolation have been used 相似文献
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Sizing optimization of grid-independent hybrid photovoltaic/wind power generation system 总被引:2,自引:0,他引:2
To allow a real penetration of the huge dispersed naturally renewable resources (wind, sun, etc.) intermittent and more or less easily predictable, optimal sizing of hybrid renewable power generation systems prove to be essential. This paper recommends an optimal sizing model based on iterative technique, to optimize the capacity sizes of different components of hybrid photovoltaic/wind power generation system using a battery bank. The recommended model takes into account the submodels of the hybrid system, the Deficiency of Power Supply Probability (DPSP) and the Levelised Unit Electricity Cost (LUEC). The flow chart of the hybrid optimal sizing model is also illustrated. With this incorporated model, the sizing optimization of grid-independent hybrid PV/wind power generation system can be accomplished technically and economically according to the system reliability requirements. A case study is conducted to analyze one hybrid project, which is designed to supply residential household located in the area of the CDER (Center for Renewable Energy Development) situated in Bouzaréah, Algeria (36° 48′N, 3° 1′E, 345 m). 相似文献
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在微网中配置混合储能并引入需求侧响应机制,有利于提高电网运行时的灵活性,降低分布式电源对电网带来的冲击。针对含风力发电机、光伏、储能的并网型微电网,引入需求侧响应机制,建立了以混合储能全寿命周期净现值、微网购电成本和需求侧响应成本为目标函数的微网混合储能优化配置模型,对混合储能容量进行优化配置,采用改进差分算法求解该模型。结合某地实际微网进行验证,结果表明,混合储能可有效改善分布式电源对微电网的影响,需求侧响应可显著降低混合储能成本,提高微网运行的经济效益,为类似微网混合储能优化配置提供了参考。 相似文献
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通过对唐山市区太阳能和风能资源状况调查分析,对全年不同方位角和倾角上的太阳能辐射量进行模拟计算,得出南偏东9.8°方向、倾角为39.7°的倾斜面上接收的太阳能辐射量最大,其值为1.62×106Wh/m2。研究中对3kW风力发电机和1kW光伏发电系统的发电量进行了计算,并以1辆纯电动轿车为负载进行了容量配比优化,设计了风力发电系统、风光互补系统及光伏系统三种不同的方案,经过对各方案的经济性、可靠性及稳定性分析,得出最佳的设计方案为风光互补发电系统,该系统风力发电装机容量为3kW,光伏发电装机容量为8.96kW。 相似文献