Gate Control System of Dam using Programmable Logic Controller

International Journal of Research and Scientific Innovation (IJRSI) | Volume VI, Issue V, May 2019 | ISSN 2321–2705

Gate Control System of Dam using Programmable Logic Controller

May Thwe Oo¹, Naing², Thin Thin³

^1,2,3Department of Electronic Engineering, Technological University (Magway)

Abstract—Water scarcity has become a serious problem in the world. There are many saving system for supply water from the dam. Therefore, the opening and closing of the gate of dam is very important to save water. The opening and closing of the gate is activated according to the level of water in the dam. The control systems of the gates of dams are done manually and using programmable logic controller (PLC). There are many errors in manual method than using PLC. For medium and small dams like irrigation dams does not require such huge PLC systems. In this paper, PLC is used to control the opening and closing of the gates of dams to save water resources from the dam for irrigation purposes and efficient operation of dam gate according to the level of water and also helps in indicating about flood to people living in the surrounding. This system consists of a set of float sensors, PLC FX2N20MR, relays and DC motor. A set of float sensor is used as input signal for PLC and used to detect the level of water. PLC is used to control gate of dam according to data from float sensors. Relays are used to drive dc motor for forward and reverse direction to close and open the gate. The working of this automatic system will completely depend on the ladder diagram programming method for PLC.

Keywords— DC motor, Float Sensors, Ladder Diagram, Programmable Logic Controller, Relays

I. INTRODUCTION

Controlling and automation of various processes, machines and devices is a fast growing business and application areas include fields as diverse as the industry, maintenance business, customer service, security, biology, medicine and social sciences. This paper presents the demonstration of a gate control system of dam, and to do so the controlling of gate of Dam is considered and for this purpose a miniature dam was also built as a testing and simulation model. To enhance the features the test model is also fully automated and includes a PC interface for user inputs for important parameters, such as threshold or cut-off water level for gate openings, flow rate and Manual/Automatic mode selection.The gate control system of the dam using PLC is used to control the flow of water so that it can be effectively used in the irrigation system. It will control the opening and closing gate according to the detected level of water in a dam.

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