基于Matlab+DSP的综合型微机继电保护实验平台设计

Design of integrated experiment platform for integrated micro-computer relay protectionction based on Matlab and DSP

为充分了解微机继电保护的工作原理和各功能模块的行为特征,开发了一套包括Matlab仿真平台和DSP硬件平台的综合型微机继电保护实验平台。利用Matlab软件,根据电网元件的实际参数和所需的保护类型建立电网模型和微机继电保护仿真模块进行仿真测试,并将电网模型在不同状态下的运行数据通过Matlab串口下传到DSP硬件平台中进行实际测试,同时可以利用微机继电保护测试仪对该硬件平台进行整体测试。结果表明,该平台的开发与应用对高校电气工程专业的课堂教学和电力系统继保工作人员的培训都具有良好的效果。

In order to fully understand the working principle and behavior characteristics, The integrated experiment platform of micro - computer relay protection is developed, which can help students understand the working princi- ple and behavior characteristics of microcomputer relay protection consisting of the Matlab the simulation platform of Matlab and the DSP hardware platform of DSP. By using the Matlab software. According to the actual parameters of the network components and the required protection types, the power system model and the microcomputer relay protection module are built, modeling the power system model and the microcomputer relay protection module ac- cording to the actual parameters of the network components and the required protection types for simulation testby u- sing the Mattab software.. The operation data of grid model in different conditions are transferred to the DSP hard- ware platform by using the Matlab the serial port and then put to practical testis transferred to hardware platform of DSP by the serial port of Matlab.. At the same time, the microcomputer relay protection testing device is employed to can make an integrated whole test for the hardware platform. The result shows thatTransfer Practice shows that, the development and application of the platform have a good effect to the teaching for those majoring electrical engi- neering and for training staff engaged in relay protection in electric power system.