VOLUME 1 ISSUE 10
IJATSER Volume 1 – Issue 10, September 2016 Edition
All listed papers are published after full consent of respective author or co-author(s).
For any discussion on research subject or research matter, the reader should directly contact to undersigned authors.
Ref. no 1 : Comparison of Speed control of Brushless DC Motor using Fuzzy Logic Controller System and Anti‐windup PI Controller System
Authors : Aruna Gupta, Mr. Vikas Kumar
ABSTRACT: This paper presents a design and implementation of speed control scheme of brushless direct current (BLDC) motor drive using Fuzzy Logic controller and Anti-windup PI controller and performance of motor is compared on various parameters. The brushless dc motors possess properties like , efficiency, reliability, high speed, less noise ,smaller size and low maintenance. They are widely used in applications such as defence industries ,robotics, tractions, computers etc. This motor cannot be controlled efficiently using conventional (PID) controller due to its nonlinear characteristics. Problems like roll over can arise in conventional PI controller due to saturation effect. To overcome this , we have developed two controllers first is Fuzzy Logic controller with a Triangular membership function and second is Anti-windup PI controller . The mathematical model of a three phase star connected BLDC motor is derived . The input to the fuzzy logic controller are Error (E) & Change in Error (first derivative of error) with respect to time. In this thesis, transient and steady state performances of BLDCM is evaluated using the controllers. The effectiveness of the controllers is verified by developing simulation model in Matlab/ Simulink software. The simulation results show that the proposed Anti-windup PI controller produce significant improvement in speed control performance and load disturbance variations compared to Fuzzy Logic controller. Fuzzy logic introduced here suppresses the chattering and enhances the robustness of the control. Drawbacks of normal PI controller like roll over can be over come by Anti-windup controller.
Ref. no 2 : ANALYSIS OF IRRIGATION CONTROL SYSTEM FOR AGRICULTURE USING WIRELESS SENSOR AND ZIGBEE TECHNOLOGY
AUTHORS : Arshi Khan , Mr. Vishal Rajoriya, Mr. Swapnil Jain
ABSTRACT : The purpose of the experiment is to find better ways of controlling an irrigation system with automatic system and manual control by smart phone. In order to control an irrigation system, we have developed the communication methodology of the wireless sensor network for collected environment data and sending control command to turn on/off irrigation system. It is successful for controlling the irrigation system and controlling the water near the vegetable roots. In this paper, we have attempted to demonstrate the automation of the irrigation system that is useful for farm business which make it comfortable than using traditional agriculture by using smart phone for monitoring and controlling the system. Accordingly, in the long- term has reduced cost as well. The paper describes the automatic irrigation system using the Arduino microcontroller with grove moisture sensor and water flow sensor. The communication will be established using the Zigbee protocol and the control will be sent based on the moisture level of the soil using Arduino microcontroller. Here when a particular moisture level is reached, depending on the value of the moisture level water flow will be allowed in the pipe and the flow range, water pressure will be updated along with the time in a database and also displayed in the web portal. The owner of the agricultural field can anytime check the moisture level and the motor status. The motor’s functionality status will also be a sent to the farmer’s mobile using GSM. In an advanced agriculture the consumption of water is very high. Due to the developments in technology, efforts are being channelled into automation of irrigation systems to facilitate remote control of the irrigation to optimize crop production and cost effectiveness. In agriculture field, the current agricultural practices need to intensify the rate of food crop production for the rate of population growth with available resources. This proposed work describes the automated system to make effective utilization of water resources for agriculture and crop growth monitoring using GSM. The effective utilization of drip irrigation process is improved by using the signals obtained from soil moisture sensor. The output signals of the sensors are coordinated by the microcontroller and transmitted to the user with the help of GSM Modem.
Ref. no 3: A REVIEW PAPER ON EXPERIMENTAL INVESTIGATION OF COLD STORAGE FOR COP WITH NUMBER OF DOOR OPENING
AUTHORS : Sunanda Joshi , Mr. Suresh Kumar Bhadoliya
ABSTRACT: As we have a tendency to all fathom the refrigeration and air-condition system and their totally different applications for protective the spoilable merchandise to providing comfort to the denizen. each refrigeration similarly as air-conis employed not just for domestic however conjointly for industrial functions. during this project we have a tendency to square measure concentrating on impact on performance activity characteristic referred to as COP i.e. constant of performance of a chilly storage used for prolonging the perishing of vegetables like potatoes, onion, etc. As a technologist we have a tendency to all fathom the method of refrigeration and various factors thathave an effect on its performance. During this project we have a tendency to square measure concentrating one amongst the vital issue that is mostly unheeded whereas we have a tendency to use any refrigeration or air-con system
i.e. impact of range of doors openings. Some folks can say it’s terribly obvious that if a system is in use we have a tendency to should need to open it so as to use it however as Associate in Nursing engineer we have a tendency to should be knowing what is going to really happen once we square measure exposing a cold space to close temperature or temperature oftentimes.For determination of this impact and verify its results I thought about a chilly storage and picked up knowledge in variety of reading of varied parameters which might be used for obtaining the precise impact on performance characteristics and located that as we have a tendency to proceed exposing the cold area to atmosphere, we have a tendency to lose huge quantity of refrigeration impact as COP of constant cold storage having single door gap is 6.21 drops all the way down to 2.05 of six door gap. thus we will conclude from following experiment that for effective refrigeration we’d like to stay the cold area closed the maximum amount as we will. This result’s terribly essential in terms of effective utilization of a chilly storages or any refrigeration or air-consystem that is wide used for various domestic and industrial functions.