研究设计了一种太阳能光伏电源系统,并成功应用于户外电力设备在线监测系统中。根据设备功耗需要和安装地点的气候情况,确定了光伏阵列和蓄电池的容量;研究了不同光照和温度条件下,光伏阵列的最大功率点跟踪(Maxmum Power Point Tracki...研究设计了一种太阳能光伏电源系统,并成功应用于户外电力设备在线监测系统中。根据设备功耗需要和安装地点的气候情况,确定了光伏阵列和蓄电池的容量;研究了不同光照和温度条件下,光伏阵列的最大功率点跟踪(Maxmum Power Point Tracking,简称MPPT)算法,使光伏阵列始终工作在最大功率输出状态,保证了蓄电池的充电效率;研究设计了多电池组协调控制与充-放电优化管理策略,有效延长了蓄电池的使用寿命。设计开发的太阳能光伏电源系统在架空输电线路状态监测系统中得到了成功应用。现场运行结果表明,该系统运行高效、稳定,完全满足工程应用需求。展开更多
An experimental analysis is performed to evaluate Rogowski coil performance for PD （partial discharge） location on overhead CC （covered-conductor） distribution lines. The measuring set-up is arranged in high volta...An experimental analysis is performed to evaluate Rogowski coil performance for PD （partial discharge） location on overhead CC （covered-conductor） distribution lines. The measuring set-up is arranged in high voltage laboratory. A multi-end measuring method is chosen as a technique to locate PD source point on the line. A power transformer is used to energize one end of the CC line by the AC voltage source. The performance of Rogowski-coil is tested in noisy environment. The tests are carried out conceming different measurement conditions such as off-line and on-line PD measuring systems. The results obtained from the laboratory measurements confirm the capability of the Rogowski-coil in order to measure and locate the high frequency PD source on the CC line in consistent with energizing AC source. Chirp detector is used as a signal-processing tool in order to extract the PD signals and then apply the locator algorithm.展开更多
文摘研究设计了一种太阳能光伏电源系统,并成功应用于户外电力设备在线监测系统中。根据设备功耗需要和安装地点的气候情况,确定了光伏阵列和蓄电池的容量;研究了不同光照和温度条件下,光伏阵列的最大功率点跟踪(Maxmum Power Point Tracking,简称MPPT)算法,使光伏阵列始终工作在最大功率输出状态,保证了蓄电池的充电效率;研究设计了多电池组协调控制与充-放电优化管理策略,有效延长了蓄电池的使用寿命。设计开发的太阳能光伏电源系统在架空输电线路状态监测系统中得到了成功应用。现场运行结果表明,该系统运行高效、稳定,完全满足工程应用需求。
文摘An experimental analysis is performed to evaluate Rogowski coil performance for PD （partial discharge） location on overhead CC （covered-conductor） distribution lines. The measuring set-up is arranged in high voltage laboratory. A multi-end measuring method is chosen as a technique to locate PD source point on the line. A power transformer is used to energize one end of the CC line by the AC voltage source. The performance of Rogowski-coil is tested in noisy environment. The tests are carried out conceming different measurement conditions such as off-line and on-line PD measuring systems. The results obtained from the laboratory measurements confirm the capability of the Rogowski-coil in order to measure and locate the high frequency PD source on the CC line in consistent with energizing AC source. Chirp detector is used as a signal-processing tool in order to extract the PD signals and then apply the locator algorithm.
