Study Of The Management And Communication Modules In A Remote Power Quality Monitor

Power Quality Monitoring of Power system is a new science realm, which has developed rapidly in recent years and has attracted more and more attention of engineers of related department of power system,such as operation,management,research.Along with the science development,more and more new technology and ideas would be applied to the Power Quality Monitoring.The paper firstly introduces the situation of the power quality measurement and existed problems home and abroad,discusses the power quality indexes.And by lucubrating the development and applications of the embedded system,the paper introduces the skill into the power quality measurement field.The thesis designed the ARM9 processor(S3C2410A) platform based on the embedded Linux system.The paper stresses the development of the management ability of ARM9 (S3C2410A),designs the functions such as accomplishing interface of the monitor and the storage ability.Among them,firstly accomplishes the data transfer of the calculation module DSP and the management module ARM making use of CAN bus;analyses and realizes transplanting and compiling Linux OS core;completes the transplanting and compiling the embedded Qt/qtopia interface system under Linux OS,furthermore, realize favorable interface by compiling programmer;realizes the function of storage by getting the knowledge of database in embedded system;studies the problem of Ethernet network communications between power quality monitors and host Computer applying the network communication interface in ARM module.The research and development of the software and the hardware system based on the embedded offers a powerful theoretic and practical platform for the further research. The proposed design can accord with demands of the up-to-data requirement in power quality monitor system,and has the advantages in performance,computation,volume and cost.It is a high nature price compared design which includes the good capability of man-machine conversation function,good local-storage function made use of the perfect management ability of ARM.What's more,the design improves the stabilities of the monitor system and accomplishes the clipping of the software.So this equipment is suitable to be installed on site in large quantity.