Research Of Microprocessor-based Protection's Hardware Platform

With the development of microprocessor relay protection,many new relay principle and project,especially some relay principles based fault wave character and high frequency,or some intellective projects based ANN and Inkling put forward more higher requirment for the design of microprocessor relay protection.Based on broadly collecting the documents about hardware platform,This paper bring up new microprocessor relay protection hardware platform's project and design.The main work includes these:1. Broadly collecting the documents about hardware platform,and referring the instruction books of the domestic manufactor.Make sure the signifcation of this paper,put forward the main work researched in this paper.2. Discussion the main aspects of microprocessor relay protection including CPU,Data acquisition and Communication mode.Point to the fault of traditional microcomputer relay protection and for the requirment of power system's development,put forward the new project of hardware platform.3. In the process of selection about CPU,I compared several projects,and select the project of "MCU based RISC technology" to research.The project apply the MPC555 chip of Motorola company.And emphasize to research the application of SPI and CANbus.4. As the part of the hardware platform,the I/O model block is researched,and some new hardware design and selfchecking measure applied in it.5. For improving the reliability,this paper researchs the EMC of microprocessor relay protection,and major in the research about the EMC of switching power supply,then put forward some projects about anti- jamming.