Research Of Relay Protection Device Development Testing System Based On DSP

With the rapid development of the Electric Power Industry in our country, new relay protection equipments especially microprocessor relay protection equipments have been widely applied in Power System, which has a higher and newer requirement to the corresponding relay testing technology.A set of economical and practical power system relay protection testing system based on the (DSP)TMS320F206 and CAN bus technology is developed on the reference of a great deal of documents domestic and overseas. In the paper, the structure and principle of the whole testing system are introduced, the hardware and software of the relay protection testing system are designed based on modular structure method. The principle and the function of the whole hardware modular are analyzed in detail, a set of power amplificatory circuits (including current amplificatory and voltage amplificatory circuits) designing and the corresponding protective circuits designing of which are brought forward. The designing rule and the programming method of the whole software are also set forth, in which, an effective communication protocol between computer and microprocessor is designed.