Dsp-based Ftu In Research And Design

Along with the development of distribution automation system, more requests have arisen in dealing-with the fault of distribution automation system and real-time control.Feeder automation is important tache of DAS and Feeder Terminal Unit is the based key equipment. The performance of FTU determined the realization of DAS.In this paper, it expounds the actuality of DAS and the realization of FA and gives the design of FTU.Based on digital signal processing and digital signal processor, the CPU of FTU is using digital signal processor-TMS320LF2407 of TI Corporation. The main functions of FTU include the alternating-current sampling based on method of frequence-scent, hardware filter, asynchronism-series-communication, Controller-Aera-Network communication and arithmetic of FIR, FFT. It also has given the steps of resolution on reliability and anti-jamming of FTU.In this paper, it provides the main hardware design of FTU and the hardware circuits have been establishied, also the correlative programme and mathmetic have been debugging and emulated in lab.All these functions have been realization in lab.These data and consequence have identified that design of DSP-based FTU is better,feasibility and practicability.