Simulation of irrigation control strategies for cotton using model predictive control within the VARIwise simulation framework
Article
Article Title | Simulation of irrigation control strategies for cotton using model predictive control within the VARIwise simulation framework |
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ERA Journal ID | 41630 |
Article Category | Article |
Authors | McCarthy, Alison C. (Author), Hancock, Nigel H. (Author) and Raine, Steven R. (Author) |
Journal Title | Computers and Electronics in Agriculture |
Journal Citation | 101, pp. 135-147 |
Number of Pages | 13 |
Year | 2014 |
Publisher | Elsevier |
Place of Publication | Netherlands |
ISSN | 0168-1699 |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.compag.2013.12.004 |
Web Address (URL) | http://www.sciencedirect.com/science/article/pii/S0168169913003013 |
Abstract | Model-based irrigation control strategies applied to irrigation make decisions (on water application and/or timing) using a crop and/or soil production model. Decisions are made with respect to an optimisation objective which, for irrigation, can be either short-term (e.g. achieving/maintaining a set soil-water deficit) or predicted end-of-season (e.g. maximising final yield) by predicting how the crop will respond at the end of the season. In contrast, sensor-based irrigation strategies rely on achieving a performance that is measurable during the crop season to provide the feedback control, and may not necessarily optimise overall crop performance. Model-based control potentially avoids this limitation. This paper describes the application of Model Predictive Control (MPC) methodology to the feedback control of irrigation via a model-based irrigation strategy implemented in the irrigation control simulation framework 'VARIwise'. The requirement to also accommodate spatial and temporal differences in crop water requirement across a heterogeneous field is met by defining management 'zones' according to differing soil and crop properties across the field and separately applying the control algorithm for each of these zones. |
Keywords | variable-rate irrigation; centre pivot; lateral move; scheduling; irrigation automation; Model Predictive Control |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 300205. Agricultural production systems simulation |
400799. Control engineering, mechatronics and robotics not elsewhere classified | |
300201. Agricultural hydrology | |
Public Notes | File reproduced in accordance with the copyright policy of the publisher/author. |
Byline Affiliations | National Centre for Engineering in Agriculture |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q2374/simulation-of-irrigation-control-strategies-for-cotton-using-model-predictive-control-within-the-variwise-simulation-framework
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