Double closed-loop optimal control of greenhouse cultivation

Dan Xu; Shangfeng Du; Gerard van Willigenburg

doi:10.1016/j.conengprac.2019.01.010

Double closed-loop optimal control of greenhouse cultivation

Dan Xu, Shangfeng Du^*, Gerard van Willigenburg

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

8 Citations (Scopus)

Abstract

Two time-scale receding horizon optimal control (TTRHOC) of greenhouse cultivation is investigated. Recent developments enable closure of the outer-loop of this control system because they facilitate on-line recomputation of the optimal control of the slow dynamics on a daily basis. This paper quantifies the benefits obtained from having an outer closed-loop that counteracts errors and changes concerning predictions of crop growth, long-term weather, revenues obtained from selling crops and costs to control greenhouse climate. As a special, important case LED lighting is considered which increases both crop growth and profit. Having an outer closed-loop is especially beneficial in this case.

Original language	English
Pages (from-to)	90-99
Number of pages	10
Journal	Control Engineering Practice
Volume	85
DOIs	https://doi.org/10.1016/j.conengprac.2019.01.010
Publication status	Published - 1 Apr 2019

Keywords

Double closed-loop
Greenhouse cultivation
LED lighting
Optimal control
Time-scale decomposition

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title = "Double closed-loop optimal control of greenhouse cultivation",

abstract = "Two time-scale receding horizon optimal control (TTRHOC) of greenhouse cultivation is investigated. Recent developments enable closure of the outer-loop of this control system because they facilitate on-line recomputation of the optimal control of the slow dynamics on a daily basis. This paper quantifies the benefits obtained from having an outer closed-loop that counteracts errors and changes concerning predictions of crop growth, long-term weather, revenues obtained from selling crops and costs to control greenhouse climate. As a special, important case LED lighting is considered which increases both crop growth and profit. Having an outer closed-loop is especially beneficial in this case.",

keywords = "Double closed-loop, Greenhouse cultivation, LED lighting, Optimal control, Time-scale decomposition",

author = "Dan Xu and Shangfeng Du and {van Willigenburg}, Gerard",

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doi = "10.1016/j.conengprac.2019.01.010",

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AU - Xu, Dan

AU - Du, Shangfeng

AU - van Willigenburg, Gerard

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AB - Two time-scale receding horizon optimal control (TTRHOC) of greenhouse cultivation is investigated. Recent developments enable closure of the outer-loop of this control system because they facilitate on-line recomputation of the optimal control of the slow dynamics on a daily basis. This paper quantifies the benefits obtained from having an outer closed-loop that counteracts errors and changes concerning predictions of crop growth, long-term weather, revenues obtained from selling crops and costs to control greenhouse climate. As a special, important case LED lighting is considered which increases both crop growth and profit. Having an outer closed-loop is especially beneficial in this case.

KW - Double closed-loop

KW - Greenhouse cultivation

KW - LED lighting

KW - Optimal control

KW - Time-scale decomposition

U2 - 10.1016/j.conengprac.2019.01.010

DO - 10.1016/j.conengprac.2019.01.010

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JO - Control Engineering Practice

JF - Control Engineering Practice

SN - 0967-0661

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