CAJ | 학술논문

研究一种以STM32控制器为核心、针对超硬材料合成过程的高精度加热控制方法。采用前馈控制加反馈控制的方式实现恒功率加热控制。利用STM32高速的AD采样特性，实时采集电网电压和负载两端的加热电压电流，并求出各自真有效值。前馈环节用于补偿电网电压波动；反馈环节根据加热电压、电流真有效值及二者相位差计算加热有功功率，与给定功率相比，运用模糊自适应PID算法对输出信号进行调整。实验结果表明：整个加热系统具有优良的动态特性和实时性，从而使得实际加热功率曲线能够很好地跟踪给定功率曲线。
연구일충이STM32공제기위핵심、침대초경재료합성과정적고정도가열공제방법。채용전궤공제가반궤공제적방식실현항공솔가열공제。이용STM32고속적AD채양특성，실시채집전망전압화부재량단적가열전압전류，병구출각자진유효치。전궤배절용우보상전망전압파동；반궤배절근거가열전압、전류진유효치급이자상위차계산가열유공공솔，여급정공솔상비，운용모호자괄응PID산법대수출신호진행조정。실험결과표명：정개가열계통구유우량적동태특성화실시성，종이사득실제가열공솔곡선능구흔호지근종급정공솔곡선。
A high precision heating-control method during the process of super-hard materials synthesis was studied based on STM32 controller.The methods of feed-forward and feedback control were used to realize constant power control.Using high speed AD of STM32,network voltage and heating voltage-current on the load were collected real-time,and the true RMS was calculated at the same time.Feed-forward was used to offset the wave of network voltage,and feedback was used to adjust output signal by comparing the power given by upper computer and the actual heating active power which was calculated by using heating voltage-current’s true ef-fective value and their phase difference.The results show that this heating-system has excellent dynamic performances and real-time performance,so it can make the real power curve follow the given power curve very well.