Full Custom Design and Realization of Large-scale Multi-port High Speed Register File;

By adopting multi-port I/O multiplex technique,a compact TCP server that can provide service for multi-device is realized and the Ethernet data collection function of embedded VDR is extended,then marine VDR is successfully interfaced with main propulsion monitoring & control system and power stat.

Based on typical multi-port circuit,the functional relationship between the test data of detecting port and the S-parameters of measured two-port microwave network was deduced,and a suggestion of optimizing the circuit for measuring phase transmission characteristics was offered accordingly.

This paper summarizes the characteristics as well as the development and application status of HVDC,the localization status and the application prospect of HVDC project in China,and the development and application status of new HVDC technology,such as multiterminal HVDC,HVDC light and capacitor commuted converter.

Variable-potential multiple-end measurement for locating analysis of transformer partial discharge;

Focusing on the issue that the conventional protection relay is unable to clear the faults rapidly occurring within the whole protected multi-terminal lines in a medium/low voltage system, this paper presents a new scheme of current differential protection based on the fiber optical communication channel for multi-terminal lines.