Design Of Arc Suppression And Over Voltage Protector Controller Based On DSP & μC/OS-Ⅱ

In present years, Arc Suppression and Over Voltage Protector is more and more used in neutrality point unearth system to distinguish arc earth over voltage and protect the power system when single-phase earth fault happens. It is a new method to prevent arc earth over voltage different from Arc Suppression Circle.The controller design of Arc Suppression and Over Voltage Protector is very important to realize its function. A design of Arc Suppression and Over Voltage Protector Controller Based on DSP &μC/OS-Ⅱis introduced in this paper. The controller uses 32bits high performance TMS320F2812 DSP as it central control unit which is produced by TI incorporation. Based it analog mete gather module, on-off mete in-out module, communication module, man machine interface module etc. are designed,μC/OS-ⅡOS is replanted on DSP by which the application program is designed. And the EMC design of the controller is did in the early stage of the production of it. The controller can perform on measuring power mete, distinguishing fault, emitting protection order, alarming and logging fault information, communicating with up-control computer etc. So it can protect the power system when arc earth over voltage happens. The controller has many features like fast processing speed, good man machine interface, extensile etc.