为提高供电系统的工作可靠性,介绍了一种具有高可靠性的交流不间断供电系统的设计方法。该系统是由UPS(uninterrupted power supply)并联模块、电子切换开关、电子稳压器等组成。UPS的并联运行是提高电源系统运行可靠性和扩大供电容量...为提高供电系统的工作可靠性,介绍了一种具有高可靠性的交流不间断供电系统的设计方法。该系统是由UPS(uninterrupted power supply)并联模块、电子切换开关、电子稳压器等组成。UPS的并联运行是提高电源系统运行可靠性和扩大供电容量的重要手段。由交流稳压器作为UPS的后备电源,提高了系统的可靠性。电子开关保证系统的在线零切换,真正做到对负载供电的不间断。组成系统的模块都可以进行在线维修和更换,可以提高系统的MTBF(mean time between failures),进一步提高系统的可靠性。展开更多
In this paper, a class of real-time parallel combined methods (RTPCM) of the digital simulation for a partitioned large system is presented. By means of combination of the parallelism across the system with the parall...In this paper, a class of real-time parallel combined methods (RTPCM) of the digital simulation for a partitioned large system is presented. By means of combination of the parallelism across the system with the parallelism across the method, stiff and non-stiff subsystems are solved in parallel on parallel computer by a parallel Rosenbrock method and a parallel RK method, respectively. Their construction, convergence and numerical stability are discussed, and the digitalsimulation experiments are conducted.展开更多
A class of modified parallel combined methods of real-time numerical simulation are presented for a stiff dynamic system. By combining the parallelism across the system with the parallelism across the method, and rela...A class of modified parallel combined methods of real-time numerical simulation are presented for a stiff dynamic system. By combining the parallelism across the system with the parallelism across the method, and relaxing the dependence of stage value computation on sampling time of input function, a class of modified real-time parallel combined methods are constructed. Stiff and nonstiff subsystems are solved in parallel on a parallel computer by a parallel Rosen-brock method and a parallel RK method, respectively. Their order conditions and convergences are discussed. The numerical simulation experiments show that this class of modified algorithms can get high speed and efficiency.展开更多
文摘为提高供电系统的工作可靠性,介绍了一种具有高可靠性的交流不间断供电系统的设计方法。该系统是由UPS(uninterrupted power supply)并联模块、电子切换开关、电子稳压器等组成。UPS的并联运行是提高电源系统运行可靠性和扩大供电容量的重要手段。由交流稳压器作为UPS的后备电源,提高了系统的可靠性。电子开关保证系统的在线零切换,真正做到对负载供电的不间断。组成系统的模块都可以进行在线维修和更换,可以提高系统的MTBF(mean time between failures),进一步提高系统的可靠性。
文摘In this paper, a class of real-time parallel combined methods (RTPCM) of the digital simulation for a partitioned large system is presented. By means of combination of the parallelism across the system with the parallelism across the method, stiff and non-stiff subsystems are solved in parallel on parallel computer by a parallel Rosenbrock method and a parallel RK method, respectively. Their construction, convergence and numerical stability are discussed, and the digitalsimulation experiments are conducted.
基金This project was supported by the National Natural Science Foundation of China (19871080).
文摘A class of modified parallel combined methods of real-time numerical simulation are presented for a stiff dynamic system. By combining the parallelism across the system with the parallelism across the method, and relaxing the dependence of stage value computation on sampling time of input function, a class of modified real-time parallel combined methods are constructed. Stiff and nonstiff subsystems are solved in parallel on a parallel computer by a parallel Rosen-brock method and a parallel RK method, respectively. Their order conditions and convergences are discussed. The numerical simulation experiments show that this class of modified algorithms can get high speed and efficiency.
