Abstract

Drip irrigation systems are one of the most efficient irrigation systems in water use. Drip irrigation systems in plantation areas with different types of plants have different watering times, so the water pressure in the pipe varies according to the number of activated emitters. The unstable water pressure in a pipe will make the water flow at the emitter output unstable, so that the volume of water supplied to the plant is unstable as well. Therefore, it is necessary to control the water pressure in the pipe and keep it constant. Pressure control is conducted by adjusting the speed of the water pump. This research focused on implementation of water pressure control on a drip irrigation system using a centrifugal water pump driven by a brushless DC motor. This study uses a sectrifugal water pump with a maximum discharge capacity of 26 l/h and the maximum head is 15 meters. This water pressure control system has a feedback signal from a water pressure sensor mounted on the irrigation network pipe. The proportional integral control method was implemented on an ARM microcontroller with a sampling time of 100 ms. The controller parameters were calculated using the Ziegler and Nichols methods that yield proportional and integral constants of 0.5 and 4.9 respectively. The prototype testing was performed by providing a set point of water pressure control at 14 psi, in which the system has a rise time of 3 seconds and a steady state error of 3.6%.

Original languageEnglish
Title of host publication8th Annual Basic Science International Conference
Subtitle of host publicationCoverage of Basic Sciences toward the World's Sustainability Challenges
EditorsCorina Karim, Rodliyati Azrianingsih, Mauludi Ariesto Pamungkas, Yoga Dwi Jatmiko, Anna Safitri
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735417397
DOIs
Publication statusPublished - 17 Oct 2018
Event8th Annual Basic Science International Conference: Coverage of Basic Sciences toward the World's Sustainability Challanges, BaSIC 2018 - Malang, East Java, Indonesia
Duration: 6 Mar 20187 Mar 2018

Publication series

NameAIP Conference Proceedings
Volume2021
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference8th Annual Basic Science International Conference: Coverage of Basic Sciences toward the World's Sustainability Challanges, BaSIC 2018
Country/TerritoryIndonesia
CityMalang, East Java
Period6/03/187/03/18

Keywords

  • brushless DC motor
  • drip irrigation
  • microcontroller
  • water pressure control

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