Prediction of electric field impact on residential houses is required in the design of UHVDC transmission lines.The calculation of electric field distribution on houses is a 3D problem,however,the effectiveness of som...Prediction of electric field impact on residential houses is required in the design of UHVDC transmission lines.The calculation of electric field distribution on houses is a 3D problem,however,the effectiveness of some 2D calculation meth-ods has been validated by specific reduced-scale experimental models.The 2D methods are simple in operation and quick in computation compared with the 3D methods.In this paper,the deviation ranges of 2D electric field calculation results on houses are discussed.Then,a 3D electric field reconstruction method is proposed to correct the 2D results according to the size and location of the houses.The 3D electric field distribution on the houses can be obtained based on efficient 2D calculations,and a direct 3D calculation is avoided.Finally,the validity of the calculation methods is verified by the measurement results of a full-scale experimental system.展开更多
光伏、风电等可再生能源的大规模接入给电力系统的运行带来了诸多问题,如由发电过剩引起的电网反向潮流、电网频率和节点电压调节容量的不足。作为解决可再生能源出力波动性引起的不确定性问题的方法之一,采用电动汽车作为储能装置,即...光伏、风电等可再生能源的大规模接入给电力系统的运行带来了诸多问题,如由发电过剩引起的电网反向潮流、电网频率和节点电压调节容量的不足。作为解决可再生能源出力波动性引起的不确定性问题的方法之一,采用电动汽车作为储能装置,即所谓的V2H(vehicle to house)或者V2G(vehicle to grid),将发挥重要作用,因此有必要建立电动汽车应用评估方法。以配有光伏发电装置和一辆电动汽车的某智能家居为例,定量评估了电动汽车电池充放电对光伏发电输出功率的家庭内部使用比例、家庭用电成本和CO2排放量的影响。分析结果表明,通过光伏发电装置和电功汽车电池的有效配合使用,可以减少反向潮流和CO2排放。最后,通过仿真分析论证了多辆电动汽车对含有多栋智能家居的智能化小区能量管理的贡献。展开更多
基金This work was supported in part by National Key Research and Development Program under Grant 2016YFB0900900in part by State Grid Corporation of China under Project GY71-18-008.
文摘Prediction of electric field impact on residential houses is required in the design of UHVDC transmission lines.The calculation of electric field distribution on houses is a 3D problem,however,the effectiveness of some 2D calculation meth-ods has been validated by specific reduced-scale experimental models.The 2D methods are simple in operation and quick in computation compared with the 3D methods.In this paper,the deviation ranges of 2D electric field calculation results on houses are discussed.Then,a 3D electric field reconstruction method is proposed to correct the 2D results according to the size and location of the houses.The 3D electric field distribution on the houses can be obtained based on efficient 2D calculations,and a direct 3D calculation is avoided.Finally,the validity of the calculation methods is verified by the measurement results of a full-scale experimental system.
文摘光伏、风电等可再生能源的大规模接入给电力系统的运行带来了诸多问题,如由发电过剩引起的电网反向潮流、电网频率和节点电压调节容量的不足。作为解决可再生能源出力波动性引起的不确定性问题的方法之一,采用电动汽车作为储能装置,即所谓的V2H(vehicle to house)或者V2G(vehicle to grid),将发挥重要作用,因此有必要建立电动汽车应用评估方法。以配有光伏发电装置和一辆电动汽车的某智能家居为例,定量评估了电动汽车电池充放电对光伏发电输出功率的家庭内部使用比例、家庭用电成本和CO2排放量的影响。分析结果表明,通过光伏发电装置和电功汽车电池的有效配合使用,可以减少反向潮流和CO2排放。最后,通过仿真分析论证了多辆电动汽车对含有多栋智能家居的智能化小区能量管理的贡献。
