Comparative Analysis of P, Pi, and PID Controllers Optimized by Genetic Algorithm on Controlling Drip Irrigation System

Hilman Syaeful Alam, Triya Haiyunnisa and Bahrudin
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Hilman Syaeful Alam: Technical Implementation Unit for Instrumentation Development, Indonesian Institute of Sciences, Jl. Sangkuriang Komplek LIPI Gedung 30 Bandung, Indonesia
Triya Haiyunnisa: Technical Implementation Unit for Instrumentation Development, Indonesian Institute of Sciences, Jl. Sangkuriang Komplek LIPI Gedung 30 Bandung, Indonesia
Bahrudin: Technical Implementation Unit for Instrumentation Development, Indonesian Institute of Sciences, Jl. Sangkuriang Komplek LIPI Gedung 30 Bandung, Indonesia

International Journal of Technology and Engineering Studies, 2015, vol. 1, issue 4, 117-122

Abstract: Agriculture is the largest consumer of global freshwater, accounting for around 70% of withdrawals as irrigation. The consumption of water in plant is, in practice, mostly determined by the energy available and/or by the vapor pressure deficit of the air present. Drip irrigation is a method of watering plants with a volume of water approaching the consumptive use (CU) of the plants. In this drip irrigation system, controlled items are humidity and pressure sensors, which are obtained from the readings of those sensors, we compute the desired actuator of control valve that aimed to control the water flow to the field. By determining the set point, and using P, PI, or PID controller applied, the performance of the control system could be defined. Basically, output response of the control system of Drip Irrigation is good, only the value of the set point has not been reached. Therefore proportional controller (Kp) is needed as the gain of the system. The best value of P controller (Kp) for drip irrigation system is 74.95, where the max overshoot is only 0.0231 bar or 1.92% and the steady state condition has been reached at 24.95 seconds with no error steady state.

Keywords: Drip Irrigation; Humidity Sensor; Pressure Sensor; Set Point; Proportional Controller (search for similar items in EconPapers)
Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:apa:ijtess:2015:p:117-122

DOI: 10.20469/ijtes.40002-4

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