Qi CHEN, Xujun YUAN, Rongfu ZHANG, Yang ZHENG. Smith predictive fuzzy PID control algorithm and its application in powder quantitative weighing[J]. Optical Instruments, 2024, 46(2): 28
- Optical Instruments
- Vol. 46, Issue 2, 28 (2024)
Fig. 1. High-precision powder shaking device
Fig. 2. Control block diagram of Smith predictive compensation system
Fig. 3. Smith predictive fuzzy PID controller
Fig. 4. MATLAB simulation model
Fig. 5. Simulation results for given input
Fig. 6. Simulation results with added disturbance
Fig. 7. Block diagram of the fuzzy PID parameter setting program
Fig. 8. Data with conventional PID quantitative weighing
Fig. 9. Data using Smith fuzzy PID quantitative weighing
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Table 1. Powder weight at different travel distances after shaking
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Table 2. Powder weight at different maximum speeds after shaking
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Table 3. Fuzzy control table
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Table 4. Statistics of the conventional PID quantitative weighing
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Table 5. Statistics using Smith fuzzy PID quantitative weighing
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