The paper is concerned with the Power System Protection schemes and the resulting design requirement that enhances stability as well as control with the implementation of TCP/IP. It discusses the architecture that upg...The paper is concerned with the Power System Protection schemes and the resulting design requirement that enhances stability as well as control with the implementation of TCP/IP. It discusses the architecture that upgrades the existing scheme by controlling all the control signals traffic between generating units, transmission system, connected loads and protection devices that are sensitive to control signals using TCP/IP and results are compared using Graphics User Interface (GUI) in MATLAB/Simulink. Protection system describes latest breakers circuit using indirect tripping command from generating units that protects load side through load breakers that receives action signal from local controllers that have a direct communication linkage with main server having strong data base, directly monitors everything through TCP/IP platform using GUI.展开更多
This paper presents a partition-based Design-for- Test （DFT） technique to reduce the power consumption during scan-based testing. This method is based on partitioning the chip into several independent scan domains. ...This paper presents a partition-based Design-for- Test （DFT） technique to reduce the power consumption during scan-based testing. This method is based on partitioning the chip into several independent scan domains. By enabling the scan domains alternatively, only a fraction of the entire chip will be active at the same time, leading to low power consumption during test. Therefore, it will significantly reduce the possibility of Electronic Migration and Overheating. In order to prevent the drop of fault coverage, wrappers on the boundaries between scan domains are employed. This paper also presents a detailed design flow based on Electronics Design Automation （EDA） tools from Synopsy~ to implement the proposed test structure. The proposed DFT method is experimented on a state-of-theart System-ou-chips （SOC）. The simulation results show a significant reduction in both average and peak power dissipation without sacrificing the fault coverage and test time. This SOC has been taped out in TSMC and finished the final test m ADVANTEST.展开更多
随着电力调度脉冲编码调制(PCM)设备的逐步退运,电网公司将逐步采用光传输设备替代调度PCM设备。在设备更换的过渡期,存在大量光传输设备与PCM设备混用的情况。为解决电力调度传输网络中存在的E1与互联网协议(IP)分组业务转换难度大、...随着电力调度脉冲编码调制(PCM)设备的逐步退运,电网公司将逐步采用光传输设备替代调度PCM设备。在设备更换的过渡期,存在大量光传输设备与PCM设备混用的情况。为解决电力调度传输网络中存在的E1与互联网协议(IP)分组业务转换难度大、转换速率低的问题,提出了1种基于网络切片的IP over E1方法。首先,将要传输的数据打包成IP数据。然后,基于网络切片技术,将IP数据包切片后,封装成E1帧。在此基础上,通过E1链路进行数据传输,在接收端通过E1数据帧拆解完成IP数据包的重组发送。最后,将所提方法在某省电力公司进行实例运行,IP over E1转换准确率为99.86%。其结果验证了该方法的有效性。该方法可有效提高IP over E1转换速度和准确率。展开更多
该文概述舰船综合电力系统(integrated power system,IPS)的原理、组成、分类、特点与技术难点,介绍国内外工程研制情况,综述集成设计、大容量直流源及其并联组网控制、大容量直驱式电力推进、直流大电流开断保护、电力电子静止电源、...该文概述舰船综合电力系统(integrated power system,IPS)的原理、组成、分类、特点与技术难点,介绍国内外工程研制情况,综述集成设计、大容量直流源及其并联组网控制、大容量直驱式电力推进、直流大电流开断保护、电力电子静止电源、高密度储能、智能化能量管理等7项共性技术及我国技术研究突破情况。针对IPS在民用新能源船舶、电动及混动飞机、轨道交通、海上能源高效利用等推广应用实际需求,给出系统推荐方案,并提出各应用场景下还需重点研究的内容,旨在为IPS在多领域推广应用提供参考。展开更多
文摘The paper is concerned with the Power System Protection schemes and the resulting design requirement that enhances stability as well as control with the implementation of TCP/IP. It discusses the architecture that upgrades the existing scheme by controlling all the control signals traffic between generating units, transmission system, connected loads and protection devices that are sensitive to control signals using TCP/IP and results are compared using Graphics User Interface (GUI) in MATLAB/Simulink. Protection system describes latest breakers circuit using indirect tripping command from generating units that protects load side through load breakers that receives action signal from local controllers that have a direct communication linkage with main server having strong data base, directly monitors everything through TCP/IP platform using GUI.
文摘This paper presents a partition-based Design-for- Test （DFT） technique to reduce the power consumption during scan-based testing. This method is based on partitioning the chip into several independent scan domains. By enabling the scan domains alternatively, only a fraction of the entire chip will be active at the same time, leading to low power consumption during test. Therefore, it will significantly reduce the possibility of Electronic Migration and Overheating. In order to prevent the drop of fault coverage, wrappers on the boundaries between scan domains are employed. This paper also presents a detailed design flow based on Electronics Design Automation （EDA） tools from Synopsy~ to implement the proposed test structure. The proposed DFT method is experimented on a state-of-theart System-ou-chips （SOC）. The simulation results show a significant reduction in both average and peak power dissipation without sacrificing the fault coverage and test time. This SOC has been taped out in TSMC and finished the final test m ADVANTEST.
文摘随着电力调度脉冲编码调制(PCM)设备的逐步退运,电网公司将逐步采用光传输设备替代调度PCM设备。在设备更换的过渡期,存在大量光传输设备与PCM设备混用的情况。为解决电力调度传输网络中存在的E1与互联网协议(IP)分组业务转换难度大、转换速率低的问题,提出了1种基于网络切片的IP over E1方法。首先,将要传输的数据打包成IP数据。然后,基于网络切片技术,将IP数据包切片后,封装成E1帧。在此基础上,通过E1链路进行数据传输,在接收端通过E1数据帧拆解完成IP数据包的重组发送。最后,将所提方法在某省电力公司进行实例运行,IP over E1转换准确率为99.86%。其结果验证了该方法的有效性。该方法可有效提高IP over E1转换速度和准确率。
文摘该文概述舰船综合电力系统(integrated power system,IPS)的原理、组成、分类、特点与技术难点,介绍国内外工程研制情况,综述集成设计、大容量直流源及其并联组网控制、大容量直驱式电力推进、直流大电流开断保护、电力电子静止电源、高密度储能、智能化能量管理等7项共性技术及我国技术研究突破情况。针对IPS在民用新能源船舶、电动及混动飞机、轨道交通、海上能源高效利用等推广应用实际需求,给出系统推荐方案,并提出各应用场景下还需重点研究的内容,旨在为IPS在多领域推广应用提供参考。
