目前国内的绝大多数电网经营企业的 10 k V配电线路线损统计、计算与分析工作手段单一且比较落后 ,文章根据以镇江供电情况 ,提出了 10 k V配电线路实时线损统计、计算与分析管理系统的设想 ,其核心思想为借助现有的 10 k V配电网络自...目前国内的绝大多数电网经营企业的 10 k V配电线路线损统计、计算与分析工作手段单一且比较落后 ,文章根据以镇江供电情况 ,提出了 10 k V配电线路实时线损统计、计算与分析管理系统的设想 ,其核心思想为借助现有的 10 k V配电网络自动化设备及通信手段实现 10 k V配电线路实时线损统计。展开更多
Plenty of dams in China are in danger while there are few effective methods for underwater dam inspections of hidden problems such as conduits,cracks and inanitions.The dam safety inspection remotely operated vehicle(...Plenty of dams in China are in danger while there are few effective methods for underwater dam inspections of hidden problems such as conduits,cracks and inanitions.The dam safety inspection remotely operated vehicle(DSIROV) is designed to solve these problems which can be equipped with many advanced sensors such as acoustical,optical and electrical sensors for underwater dam inspection.A least-square parameter estimation method is utilized to estimate the hydrodynamic coefficients of DSIROV,and a four degree-of-freedom(DOF) simulation system is constructed.The architecture of DSIROV's motion control system is introduced,which includes hardware and software structures.The hardware based on PC104 BUS,uses AMD ELAN520 as the controller's embedded CPU and all control modules work in VxWorks real-time operating system.Information flow of the motion system of DSIROV,automatic control of dam scanning and dead-reckoning algorithm for navigation are also discussed.The reliability of DSIROV's control system can be verified and the control system can fulfill the motion control mission because embankment checking can be demonstrated by the lake trials.展开更多
文摘目前国内的绝大多数电网经营企业的 10 k V配电线路线损统计、计算与分析工作手段单一且比较落后 ,文章根据以镇江供电情况 ,提出了 10 k V配电线路实时线损统计、计算与分析管理系统的设想 ,其核心思想为借助现有的 10 k V配电网络自动化设备及通信手段实现 10 k V配电线路实时线损统计。
基金Project(20100480964) supported by China Postdoctoral Science FoundationProjects(2002AA420090,2008AA092301) supported by the National High Technology Research and Development Program of China
文摘Plenty of dams in China are in danger while there are few effective methods for underwater dam inspections of hidden problems such as conduits,cracks and inanitions.The dam safety inspection remotely operated vehicle(DSIROV) is designed to solve these problems which can be equipped with many advanced sensors such as acoustical,optical and electrical sensors for underwater dam inspection.A least-square parameter estimation method is utilized to estimate the hydrodynamic coefficients of DSIROV,and a four degree-of-freedom(DOF) simulation system is constructed.The architecture of DSIROV's motion control system is introduced,which includes hardware and software structures.The hardware based on PC104 BUS,uses AMD ELAN520 as the controller's embedded CPU and all control modules work in VxWorks real-time operating system.Information flow of the motion system of DSIROV,automatic control of dam scanning and dead-reckoning algorithm for navigation are also discussed.The reliability of DSIROV's control system can be verified and the control system can fulfill the motion control mission because embankment checking can be demonstrated by the lake trials.
