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Dual-valve parallel prediction control for an electro-hydraulic servo system
| Content Provider | SAGE Publishing |
|---|---|
| Author | Su, Shi-jie Zhu, Yuan-yuan Li, Cun-jun Tang, Wen-xian Wang, Hai-rong |
| Copyright Year | 2020 |
| Abstract | To improve the dynamic response performance of a high-flow electro-hydraulic servo system, scholars have conducted considerable research on the synchronous and time-sharing controls of multiple valves. However, most scholars have used offline optimization to improve control performance. Thus, control performance cannot be dynamically adjusted or optimized. To repeatedly optimize the performance of multiple valves online, this study proposes a method for connecting a high-flow proportional valve in parallel with a low-flow servo valve. Moreover, this study proposes an algorithm in which a proportional–integral–derivative system and multivariable predictive control system are used as an inner loop and outer loop, respectively. The simulation and experimental results revealed that dual-valve parallel control could effectively improve the control accuracy and dynamic response performance of an electro-hydraulic servo system and that the proportional-integral-derivative–multivariable predictive control controller could further dynamically improve the control accuracy. |
| Related Links | https://journals.sagepub.com/doi/pdf/10.1177/0036850419875662?download=true |
| ISSN | 00368504 |
| Issue Number | 1 |
| Volume Number | 103 |
| Journal | Science Progress (SCI) |
| e-ISSN | 20477163 |
| DOI | 10.1177/0036850419875662 |
| Language | English |
| Publisher | Sage Publications UK |
| Publisher Date | 2019-09-24 |
| Publisher Place | London |
| Access Restriction | Open |
| Rights Holder | © The Author(s) 2020 |
| Subject Keyword | predictive control Dual-valve control proportional-integral-derivative–multivariable predictive control electro-hydraulic servo system |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
