基于STM32的PID和PWM温度控制系统研究

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基于STM32的PID和PWM温度控制系统研究16期郭智源等:基于SM3的P和PWM温度控制系统研究3807感器所决定可以达到比较好的精度。在控温指标3功能测试及结果分析中影响系统性能的因素非常多需反复试验比较PID算法方面在上升时间和超调量之间作权衡选传感器标定,精度为0.Ⅰ℃的高精度水银温出较好的PID系数度计。3.1静态温控测量结论测量方式:环境温度28℃测量装置装入1L室温的水测量结果如表1所示。采用STM32单片机系统使电路结构简单开发表I静态温控测量方便灵活采用升温和降温两种不同方案结合控制设定温度/℃15.125.030.050.065.045.0温度经校准可使温度稳定性较高,在电路中采用测量温度/℃15.325.030.050.165.145MOC302I集成芯片简化功率控制电路大大提高静态误差/℃0.20.00.00.10.10.1了系统的稳定性和可靠性。通过分段PID系数及PWM周期控制能达到较好的温度控制要求温度波3.2动态温控测量动系数小实现了节能低功耗。设定控温温度测量结果如表2所示。参考文献表2动态温控测量设定温度/℃15.125.030.050.065.045.01李宁基于MDK的STM32处理器开发应用北京北京航空航超调温度/℃15.425.330.250.465.845.5天大学出版社200814.9—24.9-29.9—49.5—64.6—43.22张华龚义建.一种微型高精度PWM温度控制器的设计.光学变化范围/℃15.45.30.250.465.545.5与光电子技术2004;2(2):29-313张嘉英王文兰再热汽温控制系统的DMC-PD仿真硏究.自动以上测量可见静态测温的精度主要有前端传化仪表2010;31(6):58-60Researched on the System of Temperature Control Basedon the pid and pwm of sTm32GUO Zhi-yuan, han Jian ZHANG Xi-peng ZHANG Yan - ongCollege of Electronic Science Notheast Petroleum University Daqing 163318 P.R. China)[Abstract] the system of intelligent control of water temperature is researched which controlled by SCM based onthe STM32. This system has high-precision it is using the algorithm combined the control in sections and confirmthe parameters of PID. The temperature under the control of phase-angle of controllable-Si conductivity when needto higher it, and using the technology of PWm to lower it. Results show that the system has high precision in bothstatic and dynamic, low volatility in coefficient and excellent stability in performanceKey words STM32 intelligent control algorithm of PID PWMo1994-2011ChinaAcademicJournalElectronicPublishingHouse.Allrightsreservedhttp://www.cnki.net