Precision Control of Spraying Quantity Based on Linear Active Disturbance Rejection Control Method
Abstract
:1. Introduction
2. Modeling and Problem Description
2.1. Flow Valve Structure and Transfer Function Model
2.2. Problem Description and Related Definitions
2.3. System Working Principle and Hardware Design
3. Controller Design
3.1. Design of Spraying Controller
3.2. Optimal Controller Parameter Tuning Algorithm
3.3. Controller Comparison and Analysis
4. Simulation and Experimental Verification
4.1. Disturbance Measurement of Diaphragm Pump
4.2. Control Algorithm Simulation Analysis
4.3. The Field Test
5. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Test Group | The Set Rate/ (L hm−2) | Speed (km h−1) | The Actual Rate (L hm−2) | Error % |
---|---|---|---|---|
LADRC | 100 | 6 | 100.2 | 0.2 |
100 | 8 | 101.8 | 1.8 | |
100 | 10 | 103.7 | 3.7 | |
125 | 6 | 124.1 | −0.9 | |
125 | 8 | 127.3 | 2.3 | |
125 | 10 | 128.4 | 3.4 | |
150 | 6 | 147.4 | −2.6 | |
150 | 8 | 153.5 | 3.5 | |
150 | 10 | 153.2 | 3.2 | |
PID | 100 | 6 | 103.2 | 3.2 |
100 | 8 | 104.5 | 4.5 | |
100 | 10 | 109.2 | 9.2 | |
125 | 6 | 121.8 | −3.2 | |
125 | 8 | 119.4 | 5.6 | |
125 | 10 | 121.4 | −3.6 | |
150 | 6 | 154.5 | 4.5 | |
150 | 8 | 157.4 | 7.4 | |
150 | 10 | 142.2 | −7.8 |
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Ji, X.; Wang, A.; Wei, X. Precision Control of Spraying Quantity Based on Linear Active Disturbance Rejection Control Method. Agriculture 2021, 11, 761. https://doi.org/10.3390/agriculture11080761
Ji X, Wang A, Wei X. Precision Control of Spraying Quantity Based on Linear Active Disturbance Rejection Control Method. Agriculture. 2021; 11(8):761. https://doi.org/10.3390/agriculture11080761
Chicago/Turabian StyleJi, Xin, Aichen Wang, and Xinhua Wei. 2021. "Precision Control of Spraying Quantity Based on Linear Active Disturbance Rejection Control Method" Agriculture 11, no. 8: 761. https://doi.org/10.3390/agriculture11080761