International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395 -0056 Volume: 04 Issue: 04 | Apr -2017 www.irjet.net p-ISSN: 2395-0072 © 2017, IRJET | Impact Factor value: 5.181 | ISO 9001:2008 Certified Journal | Page 1952 GRID SIDE SYNCHRONIZING BY USING PLC PROGRAMMING AND MATLAB SIMULINK ANALYSIS MALOTH HUSSEN 1 , JARAPALA SIVA NAIK 2 1 Assistant Professor, Dept.of.EEE, Noble College of Engineering & Technology for Women (NETW) 2 Assistant Professor, Dept.of.EEE, Noble College of Engineering & Technology for Women (NETW) ---------------------------------------------------------------------***--------------------------------------------------------------------- Abstract - This project paper is of Thermal power plants controlling by plc ladder logic and synchronizing of different units of a plant . Thermal power plant consist of many important equipment such as boiler ,coal conveyer belt ,ash handling plant ,cooling system etc which are required for the generation of power. These equipment requires continuous inspection and monitoring .this paper outlines the automation of boiler &coal conveyer Automation leads to greater efficiency &reliability .The automation is achieved by using PLC .Analysis of thermal power plant is achieved with help of MATLAB simulation. Different sensors are used for measuring the temperature of boiler, coal input and turbine action for generation, these sensors sent required data by continuous monitoring to plc controlling program. In this project we outlining ease of controlling and synchronizing the thermal plant by ladder logic programming using plc for a plant and power analyzing of different unit of plant by using mat lab simulation. Key words: Programmable Logic Controller (PLC) 1 , ladder logic diagram 2 ,Power Plant 3 , mat lab simulation 4 ,Control room 5 etc.. 1. INTRODUCTION: At initial stages of power generation and its distribution to consumers is very complex and required of continuous attention of men and their role is very crucial .though under the supervision of once the chance of making mistakes in various sector is quite observable. In order to make the work getting done in perfect and safe environment we need some devices jointly with technology, where getting job done with ease[1]. so considering running of a thermal plant under superior supervision such it eliminate the faulty condition in generation and protects the equipment such that boiler, coal conveyor ,ash handling ,generated steam handling, synchronizing of different units ,by using of Programmable Logic Controller (PLC) with ladder logic diagram. and also analyzing the amount of power that has been being generated ,delivered to load from feeders. Now a days, it has become a necessity to maintain synchronism because the system is expanding day-by- day and these results in installation of larger machines so in this project we are making synchronism of different units of plant taking NTTPS as example with plc. 1.1 OBJECTIVE: In order provide continuous supply of power to the load centers and making to find the fault and clearing it in low time so that it can establish continuous supply. mainly securing the quality of supply , by removing the causes of discontinuity by plc ladder logic and establishing the much more sophisticated synchronization . Analyzing power being used through mat lab simulation. 1.2 What is PLC? PLC is Programmable Logic Controller PLC is a software that acts as a controlling mediator or treated as signaling acting between the field and scada. SCADA (Supervisory Control and Data Acquisition) applications are created as a main tool for performing management. 1.3 NEED FOR PLC: Hardwired panels were very time consuming to wire , debug and change. developed to offer the same functionality as the existing relay logic systems. programmable, reusable, reliable. could with stand harsh Fig -1: PLC Architecture