仪表技术与传感器
儀錶技術與傳感器
의표기술여전감기
INSTRUMENT TECHNIQUE AND SENSOR
2015年
6期
59-62
,共4页
温度控制%串级控制%自抗扰控制%外环%内环%电加热炉
溫度控製%串級控製%自抗擾控製%外環%內環%電加熱爐
온도공제%천급공제%자항우공제%외배%내배%전가열로
temperature control%cascade control%active disturbance rejection control( ADRC)%outer loop%inner loop%electrical fur-nace
针对工业电加热炉温度具有非线性、大惯性、时滞，并且很难建立精确数学模型的特点，将自抗扰控制技术(ADRC)应用于EFPT实验装置中，模拟工业电加热炉温控系统，提出了串级自抗扰控制策略。在其外环采用扩张状态观测器、状态误差的非线性反馈、扰动估计补偿相结合的控制方法；在内环采用比例控制，以快速消除干扰。仿真和实验结果表明，该控制方法具有超调小、调节快的优点，系统的鲁棒性和抗干扰能力优于常规串级PID控制方法。
針對工業電加熱爐溫度具有非線性、大慣性、時滯，併且很難建立精確數學模型的特點，將自抗擾控製技術(ADRC)應用于EFPT實驗裝置中，模擬工業電加熱爐溫控繫統，提齣瞭串級自抗擾控製策略。在其外環採用擴張狀態觀測器、狀態誤差的非線性反饋、擾動估計補償相結閤的控製方法；在內環採用比例控製，以快速消除榦擾。倣真和實驗結果錶明，該控製方法具有超調小、調節快的優點，繫統的魯棒性和抗榦擾能力優于常規串級PID控製方法。
침대공업전가열로온도구유비선성、대관성、시체，병차흔난건립정학수학모형적특점，장자항우공제기술(ADRC)응용우EFPT실험장치중，모의공업전가열로온공계통，제출료천급자항우공제책략。재기외배채용확장상태관측기、상태오차적비선성반궤、우동고계보상상결합적공제방법；재내배채용비례공제，이쾌속소제간우。방진화실험결과표명，해공제방법구유초조소、조절쾌적우점，계통적로봉성화항간우능력우우상규천급PID공제방법。
To solve the problem that the temperature of the industrial electric furnace is nonlinear,time-varying and time de-layed,and it is difficult to establish accurate mathematical model,active disturbance rejection control(ADRC) was applied to EFPT experiment device,and the cascade ADRC was proposed for simulation industrial electrical furnace temperature control system.The outer loop control combined the extended state observer,nonlinear feedback of state difference and disturbance estimation compen-sation;The inner loop control adopted the proportional control to quickly eliminate disturbance.Simulation and experimental results show that the proposed control method makes the extra-regulation smaller,the regulation time shorter,and the system’s robustness and antijamming ability are superior to the conventional cascade PID control method.
