计测技术
計測技術
계측기술
METROLOGY & MEASUREMENT TECHNOLOGY
2015年
2期
15-18
,共4页
离心-温度复合试验箱%气体温度%预测PI-PID控制
離心-溫度複閤試驗箱%氣體溫度%預測PI-PID控製
리심-온도복합시험상%기체온도%예측PI-PID공제
centrifugal-temperature composite chamber%gas temperature%predictive PI-PID cascade control
研究用于加速度计计量校准的离心-温度复合试验箱地面温度控制方法。首先提出实现试验箱高低温环境的温控系统设计方案,进而针对气体温度大惯性、大延迟的特点,提出将预测PI控制方法和串级控制相结合的新型预测PI-PID串级控制技术应用于离心-温度复合试验箱的温度控制,它既克服了单纯PID鲁棒性差的特点,又克服单纯预测PI控制由于单层结构而抗二次干扰差的问题,两者的结合提高了系统控制性能,克服了纯滞后对系统的不良影响。仿真结果表明:预测PI-PID串级控制系统具有较好的鲁棒性及良好的调节性能,其总体性能优于单纯PID控制和传统PID-PI串级控制系统。
研究用于加速度計計量校準的離心-溫度複閤試驗箱地麵溫度控製方法。首先提齣實現試驗箱高低溫環境的溫控繫統設計方案,進而針對氣體溫度大慣性、大延遲的特點,提齣將預測PI控製方法和串級控製相結閤的新型預測PI-PID串級控製技術應用于離心-溫度複閤試驗箱的溫度控製,它既剋服瞭單純PID魯棒性差的特點,又剋服單純預測PI控製由于單層結構而抗二次榦擾差的問題,兩者的結閤提高瞭繫統控製性能,剋服瞭純滯後對繫統的不良影響。倣真結果錶明:預測PI-PID串級控製繫統具有較好的魯棒性及良好的調節性能,其總體性能優于單純PID控製和傳統PID-PI串級控製繫統。
연구용우가속도계계량교준적리심-온도복합시험상지면온도공제방법。수선제출실현시험상고저온배경적온공계통설계방안,진이침대기체온도대관성、대연지적특점,제출장예측PI공제방법화천급공제상결합적신형예측PI-PID천급공제기술응용우리심-온도복합시험상적온도공제,타기극복료단순PID로봉성차적특점,우극복단순예측PI공제유우단층결구이항이차간우차적문제,량자적결합제고료계통공제성능,극복료순체후대계통적불량영향。방진결과표명:예측PI-PID천급공제계통구유교호적로봉성급량호적조절성능,기총체성능우우단순PID공제화전통PID-PI천급공제계통。
A temperature control method is designed for centrifugal-temperature composite chamber for calibration of accelerometers. A de-sign scheme is proposed for the temperature control system at first. And then, aiming at gas temperature large inertia and large delay characteris-tics, a Predictive PI-PID cascade control method is proposed that Predictive PI control and cascade control method are combined for the tempera-ture control of the centrifugal-temperature composite chamber. It overcomes the poor robustness of simple PID and the adverse effects of pure delay system. The results show that: predictive PI-PID cascade control system is robust and has good regulation performance, and the performance is better than the PID and traditional PID-PI cascade control system.