Model Reference Based Sliding Mode Control for an Inventory System With a Novel Demand Profile

This paper presents a new approach to the inventory management problem. The work considers control design for a single product warehouse with multiple suppliers with different delivery times. The demand is divided into two parts: the a priori known time-variant contractual demand and the unknown but...

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Main Authors: Katarzyna Adamiak, Tymoteusz Zwierzchowski
Format: Article
Language:English
Published: IEEE 2023-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/10227256/
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author Katarzyna Adamiak
Tymoteusz Zwierzchowski
author_facet Katarzyna Adamiak
Tymoteusz Zwierzchowski
author_sort Katarzyna Adamiak
collection DOAJ
description This paper presents a new approach to the inventory management problem. The work considers control design for a single product warehouse with multiple suppliers with different delivery times. The demand is divided into two parts: the a priori known time-variant contractual demand and the unknown but bounded random demand. The controller’s task is to generate an order sequence, such that the stock always satisfies the contractual demand and some spare products for the random buyers are stored. Therefore, we design a reference system with one supplier and one lead time only. To such a reference model we apply a sliding mode controller, which generates the appropriate order values to satisfy the contractual demand at each time instant. The model is designed so that at each time instant the warehouse receives the exact amount of goods to match the demand, consequently minimizing the required warehouse capacity. As a result, the warehouse is emptied by the end of each day. Next, we treat these values as a reference trajectory for the multiple supplier system and design a trajectory following control law. The paper proves that with appropriate compensation of the random sales, such a control strategy ensures satisfaction of the contractual demand at all time instants.
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spelling doaj.art-ed5d9cae71a44381ba6d7442fe2189c82023-09-05T23:00:56ZengIEEEIEEE Access2169-35362023-01-0111909669097910.1109/ACCESS.2023.330804410227256Model Reference Based Sliding Mode Control for an Inventory System With a Novel Demand ProfileKatarzyna Adamiak0https://orcid.org/0000-0002-6499-1793Tymoteusz Zwierzchowski1https://orcid.org/0000-0001-9578-727XInstitute of Automatic Control, Łódź University of Technology, Łódź, PolandInstitute of Automatic Control, Łódź University of Technology, Łódź, PolandThis paper presents a new approach to the inventory management problem. The work considers control design for a single product warehouse with multiple suppliers with different delivery times. The demand is divided into two parts: the a priori known time-variant contractual demand and the unknown but bounded random demand. The controller’s task is to generate an order sequence, such that the stock always satisfies the contractual demand and some spare products for the random buyers are stored. Therefore, we design a reference system with one supplier and one lead time only. To such a reference model we apply a sliding mode controller, which generates the appropriate order values to satisfy the contractual demand at each time instant. The model is designed so that at each time instant the warehouse receives the exact amount of goods to match the demand, consequently minimizing the required warehouse capacity. As a result, the warehouse is emptied by the end of each day. Next, we treat these values as a reference trajectory for the multiple supplier system and design a trajectory following control law. The paper proves that with appropriate compensation of the random sales, such a control strategy ensures satisfaction of the contractual demand at all time instants.https://ieeexplore.ieee.org/document/10227256/Control designdiscrete-time systemsinventory controlmodel reference controlsliding mode control
spellingShingle Katarzyna Adamiak
Tymoteusz Zwierzchowski
Model Reference Based Sliding Mode Control for an Inventory System With a Novel Demand Profile
IEEE Access
Control design
discrete-time systems
inventory control
model reference control
sliding mode control
title Model Reference Based Sliding Mode Control for an Inventory System With a Novel Demand Profile
title_full Model Reference Based Sliding Mode Control for an Inventory System With a Novel Demand Profile
title_fullStr Model Reference Based Sliding Mode Control for an Inventory System With a Novel Demand Profile
title_full_unstemmed Model Reference Based Sliding Mode Control for an Inventory System With a Novel Demand Profile
title_short Model Reference Based Sliding Mode Control for an Inventory System With a Novel Demand Profile
title_sort model reference based sliding mode control for an inventory system with a novel demand profile
topic Control design
discrete-time systems
inventory control
model reference control
sliding mode control
url https://ieeexplore.ieee.org/document/10227256/
work_keys_str_mv AT katarzynaadamiak modelreferencebasedslidingmodecontrolforaninventorysystemwithanoveldemandprofile
AT tymoteuszzwierzchowski modelreferencebasedslidingmodecontrolforaninventorysystemwithanoveldemandprofile