Renewable energy is increasingly in demand for a variety of applications in both urban and rural areas. There are, however, a number of implementation constraints in some countries, even though sunshine, wind and wate...Renewable energy is increasingly in demand for a variety of applications in both urban and rural areas. There are, however, a number of implementation constraints in some countries, even though sunshine, wind and water are abundant and available. As part of this research, we are carrying out a technical and economic study on the availability of renewable energy in Cameroon, with a view to combining several sources of solar, biomass, wind and hydroelectric power to meet energy demand both inside and outside the country, in countries such as Chad, Gabon and Nigeria. In this work, the implementation of the entire system in the HOMER software demonstrates the feasibility and possibility of implementing a multi-source power plant based on renewable energies. Calculation of the levelized cost of energy (LCOE) and the net present cost (NPC) shows that a capacity of 485 GW can meet the energy demand of the countries bordering Cameroon. Furthermore, the calculation of the performance ratio gives a PR = 46.52 and a Capacity factor of CF = 11.64. The system is profitable not only economically but also environmentally, as it reduces greenhouse gas emissions and energy losses.展开更多
为充分利用清洁能源、减少快充电站对电网的冲击,针对并网状态下的高速公路光伏充电站提出了一种容量分级优化策略。首先,分析了光伏充电站容量优化模型及充电需求模型,提出用基于时刻充电概率的蒙特卡洛法进行高速公路充电站的负荷预测...为充分利用清洁能源、减少快充电站对电网的冲击,针对并网状态下的高速公路光伏充电站提出了一种容量分级优化策略。首先,分析了光伏充电站容量优化模型及充电需求模型,提出用基于时刻充电概率的蒙特卡洛法进行高速公路充电站的负荷预测,得到充电需求曲线;在综合考虑生命周期内建设成本、运行成本、置换成本、环境成本等系统净现总成本TNPC(total net present cost)小和光伏供电比高的基础上,考虑混合储能,建立了高速公路光伏充电站容量分级优化配置模型,利用HOMER和禁忌算法相结合进行求解。最后,以周期25年使用寿命为例,对高速公路光伏充电站进行优化配置,从容量变化趋势及储能出力等方面进行分析,结果表明,当敏感变量售电量增大和最大容量缺额比减小时,系统配置容量将增大;混合储能比单一储能更加可靠和经济。展开更多
以系统总成本最小为目标函数,基于可再生能源发电混合系统优化仿真软件(Hybrid Optimization Model for Electric Renewables,HOMER),针对某工业园区的风光资源数据和负荷情况,进行了设备成本和参数设定。在获得的配置方案中,对比分析...以系统总成本最小为目标函数,基于可再生能源发电混合系统优化仿真软件(Hybrid Optimization Model for Electric Renewables,HOMER),针对某工业园区的风光资源数据和负荷情况,进行了设备成本和参数设定。在获得的配置方案中,对比分析了并网型风光储、风光互补以及风储、光储发电系统的优化配置方案,分析其弃电率和经济性,验证了风光储系统的优越性,最终得到并网型风光储互补发电系统总净现成本最小的配置,并对其各设备的年发电量、系统可靠性及经济性进行了分析,可为可再生能源多能互补微电网风光储系统容量优化配置的研究提供参考。展开更多
文摘Renewable energy is increasingly in demand for a variety of applications in both urban and rural areas. There are, however, a number of implementation constraints in some countries, even though sunshine, wind and water are abundant and available. As part of this research, we are carrying out a technical and economic study on the availability of renewable energy in Cameroon, with a view to combining several sources of solar, biomass, wind and hydroelectric power to meet energy demand both inside and outside the country, in countries such as Chad, Gabon and Nigeria. In this work, the implementation of the entire system in the HOMER software demonstrates the feasibility and possibility of implementing a multi-source power plant based on renewable energies. Calculation of the levelized cost of energy (LCOE) and the net present cost (NPC) shows that a capacity of 485 GW can meet the energy demand of the countries bordering Cameroon. Furthermore, the calculation of the performance ratio gives a PR = 46.52 and a Capacity factor of CF = 11.64. The system is profitable not only economically but also environmentally, as it reduces greenhouse gas emissions and energy losses.
文摘为充分利用清洁能源、减少快充电站对电网的冲击,针对并网状态下的高速公路光伏充电站提出了一种容量分级优化策略。首先,分析了光伏充电站容量优化模型及充电需求模型,提出用基于时刻充电概率的蒙特卡洛法进行高速公路充电站的负荷预测,得到充电需求曲线;在综合考虑生命周期内建设成本、运行成本、置换成本、环境成本等系统净现总成本TNPC(total net present cost)小和光伏供电比高的基础上,考虑混合储能,建立了高速公路光伏充电站容量分级优化配置模型,利用HOMER和禁忌算法相结合进行求解。最后,以周期25年使用寿命为例,对高速公路光伏充电站进行优化配置,从容量变化趋势及储能出力等方面进行分析,结果表明,当敏感变量售电量增大和最大容量缺额比减小时,系统配置容量将增大;混合储能比单一储能更加可靠和经济。
文摘以系统总成本最小为目标函数,基于可再生能源发电混合系统优化仿真软件(Hybrid Optimization Model for Electric Renewables,HOMER),针对某工业园区的风光资源数据和负荷情况,进行了设备成本和参数设定。在获得的配置方案中,对比分析了并网型风光储、风光互补以及风储、光储发电系统的优化配置方案,分析其弃电率和经济性,验证了风光储系统的优越性,最终得到并网型风光储互补发电系统总净现成本最小的配置,并对其各设备的年发电量、系统可靠性及经济性进行了分析,可为可再生能源多能互补微电网风光储系统容量优化配置的研究提供参考。
