为解决不间断电源(Uninterruptible Power Supply,UPS)切换过程中发射机监控通信短暂中断的问题,分析电压暂降、谐波干扰及电磁辐射三大成因,提出系统性的解决方案,包括针对性防护措施和数据补发机制。研究结果表明,采用超级电容缓冲、...为解决不间断电源(Uninterruptible Power Supply,UPS)切换过程中发射机监控通信短暂中断的问题,分析电压暂降、谐波干扰及电磁辐射三大成因,提出系统性的解决方案,包括针对性防护措施和数据补发机制。研究结果表明,采用超级电容缓冲、有源滤波、屏蔽敷设等措施可有效提升通信稳定性,结合滑动窗口协议可实现数据的完整恢复。展开更多
全天候广播发射站对电源系统连续性与电能质量有严苛要求,因此设计一种基于模块化架构的不间断电源(Uninterruptible Power Supply,UPS)系统。该系统对功率、电池、控制及静态开关模块进行协同设计,实现了故障冗余、毫秒级切换与谐波抑...全天候广播发射站对电源系统连续性与电能质量有严苛要求,因此设计一种基于模块化架构的不间断电源(Uninterruptible Power Supply,UPS)系统。该系统对功率、电池、控制及静态开关模块进行协同设计,实现了故障冗余、毫秒级切换与谐波抑制功能。应用案例证实,该系统能有效消除单点故障导致的停播,保障负载无缝切换,并输出满足精密设备要求的高质量电能。展开更多
This paper deals with a heat system coupled via local and localized sources subject to null Dirichlet boundary conditions. In a previous paper of the authors, a complete result on the multiple blow-up rates was obtain...This paper deals with a heat system coupled via local and localized sources subject to null Dirichlet boundary conditions. In a previous paper of the authors, a complete result on the multiple blow-up rates was obtained. In the present paper, we continue to consider the blow-up sets to the system via a complete classification for the nonlinear parameters. That is the discussion on single point versus total blow-up of the solutions. It is mentioned that due to the influence of the localized sources, there is some substantial difficulty to be overcomed there to deal with the single point blow-up of the solutions.展开更多
近年来,广播电视播出系统对不间断电源(Uninterruptible Power Supply,UPS)的需求不断增长。优化UPS电源系统的配置策略,以提升其供电效能,已经成为一个值得深入研究的问题。首先,简要阐述UPS电源系统工作原理,随后提出一种创新的UPS电...近年来,广播电视播出系统对不间断电源(Uninterruptible Power Supply,UPS)的需求不断增长。优化UPS电源系统的配置策略,以提升其供电效能,已经成为一个值得深入研究的问题。首先,简要阐述UPS电源系统工作原理,随后提出一种创新的UPS电源系统配置策略。其次,对不同供配电环境的冗余配置方式进行对比分析,以确定最优配置方案。最后,探讨广播电视UPS电源系统蓄电池容量的计算方法,并针对现有方法提出修正建议。展开更多
文摘为解决不间断电源(Uninterruptible Power Supply,UPS)切换过程中发射机监控通信短暂中断的问题,分析电压暂降、谐波干扰及电磁辐射三大成因,提出系统性的解决方案,包括针对性防护措施和数据补发机制。研究结果表明,采用超级电容缓冲、有源滤波、屏蔽敷设等措施可有效提升通信稳定性,结合滑动窗口协议可实现数据的完整恢复。
文摘全天候广播发射站对电源系统连续性与电能质量有严苛要求,因此设计一种基于模块化架构的不间断电源(Uninterruptible Power Supply,UPS)系统。该系统对功率、电池、控制及静态开关模块进行协同设计,实现了故障冗余、毫秒级切换与谐波抑制功能。应用案例证实,该系统能有效消除单点故障导致的停播,保障负载无缝切换,并输出满足精密设备要求的高质量电能。
基金China Postdoctoral Science Foundation(20110490409)Science Foundation(L2010146)of Liaoning Education Department
文摘This paper deals with a heat system coupled via local and localized sources subject to null Dirichlet boundary conditions. In a previous paper of the authors, a complete result on the multiple blow-up rates was obtained. In the present paper, we continue to consider the blow-up sets to the system via a complete classification for the nonlinear parameters. That is the discussion on single point versus total blow-up of the solutions. It is mentioned that due to the influence of the localized sources, there is some substantial difficulty to be overcomed there to deal with the single point blow-up of the solutions.
文摘近年来,广播电视播出系统对不间断电源(Uninterruptible Power Supply,UPS)的需求不断增长。优化UPS电源系统的配置策略,以提升其供电效能,已经成为一个值得深入研究的问题。首先,简要阐述UPS电源系统工作原理,随后提出一种创新的UPS电源系统配置策略。其次,对不同供配电环境的冗余配置方式进行对比分析,以确定最优配置方案。最后,探讨广播电视UPS电源系统蓄电池容量的计算方法,并针对现有方法提出修正建议。
