检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:何昆 徐莘[2] HE Kun;XU Shen(Measurement center of Guangzhou Power Supply Bureau Company,Guangzhou 510000,China;School of Electrical Engineering,Southwest Jiaotong University,Chengdu 610031,China)
机构地区:[1]广州供电局有限公司计量中心,广州510000 [2]西南交通大学电气工程学院,成都610031
出 处:《电力系统及其自动化学报》2019年第1期124-131,共8页Proceedings of the CSU-EPSA
基 金:南方电网公司科技资助项目(GZM2014-2-0038)
摘 要:目前,负序和谐波条件下的电能计量方式仍然存在争议。以电气化铁路为研究对象,从功率因数调整电费的角度介绍了现行功率因数、算术功率因数、矢量功率因数和等效功率因数等参数的定义,对比分析了负序和谐波条件下功率定义的合理性。最后,通过仿真和实测数据分析了不同视在功率定义方法的应用特性。结果表明,等效视在功率因数更能反映牵引供电系统负序和谐波对电网产生的影响,具有更广泛的适用性与合理性。At present , electric energy metering is still controversial under situations with negative-sequence and har-monic. In this paper , electrified railway is taken as a research object , and the current definitions including power fac-tor , arithmetic power factor , vector power factor and equivalent power factor , are introduced from the aspect of adjust-ing electricity charge with power factor;in addition , the rationality of the definition of power under negative-sequence and harmonic conditions is also compared and analyzed. Finally , the application characteristics of different apparent power definition methods were analyzed based on simulation and measurement data. The results showed that the equiva-lent apparent power factor can better reflect the influences of negative-sequence and harmonic in the traction power supply system on the power grid , and its applicability and rationality are much more wider.
分 类 号:TM744[电气工程—电力系统及自动化]
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.171