变压器温度控制器.doc

毕业设计（论文） 题 目： 变压器温度控制器软件系统设计 学 院： 电子信息工程学院 专业名称： 电子信息工程 班级学号： 学生姓名： 李云坤 指导教师： 肖永生 二O年月 变压器是电力。当温度高。为了保护变压器，运行可靠，需要对变压器温度进行采用个PT100传感器，三相温度进行测量pic16f690单片机中进行AD转换，采样获取温度值，当。时报警，超温时跳闸。运行速度快,低工作电压,低功耗,较大的输入输出直接驱动能力,价格低,一次性编程,小体积. 适用于产品. 关键词：温度检测， 指导老师签名： transformer temperature controller Student name: Li Yunkun Class: Supervisor: Xiao Yongsheng Abstract: Transformer is an important component of power transmission. When the transformer internal temperature is too high, it is easy to cause the transformerdamage, destroy the power supply system, has a great influence on peoples life. In order to protect the transformer, make sure power transmission is reliable, need to supervise transformer internal temperature in real-time . The design of transformer temperature control system is using PIC16F690 microcontroller as the core, mainly including temperature samplingmodule, fan control system module, alarm module, interaction module, anomaly detection module, sensor module, the black box. Using three PT100 as the sensor to measure temperature,directly to ADconversion which is in PIC16F690 , sampling temperature value, when the sensor fails, can judge the sensor fault type is open or short circuit. When the temperature get high, start the fan. when temperature get higher start the alarm, when get super high trip. To ensure that the internal temperature of the transformer in the acceptable scope of work, to avoid the transformer damage. The design used PIC16F690 microcontroller CPU with RISC structure,respectively, only 35 instructions, using Harvard dual bus structure, fast running speed, low operating voltage, low power dissipation, input and outputlarger direct drive capability, low price, OTP, small volume. Suitable for this type of product. The design of the software using multi program module, so that the process