Yeshwantrao Chavan College of Engineering

About: Yeshwantrao Chavan College of Engineering is a based out in . It is known for research contribution in the topics: Inverter & Microstrip antenna. The organization has 632 authors who have published 586 publications receiving 4037 citations.

Performance of PMSG Based Variable Speed WECS with Parallel Back-to-Back Converters Using Separate Zero d-axis Current Control

Abstract: Permanent Magnet Synchronous Generator (PMSG) based Wind Energy Conversion System (WECS) is highly preferred these days with back-to-back converter topologies. In order to overcome the sudden converter failure problems, to reduce DC-link rating and for continuity of power supply to the grid; this paper proposes variable speed WECS using PMSG with parallel back-to-back converters with separate DC-links. In both the converter strings the generator-side converters are controlled by using separate Zero Direct-axis Current (ZDC) control with Optimal Torque Control (OTC) technique for Maximum Power Point Tracking (MPPT) and both the grid-side converters are controlled with the help of separate grid-side control. In addition, the problem of zero sequence circulating current has been taken into account. The proposed scheme is been implemented using the MATLAB environment and the overall performance of the system is evaluated through experimental studies.

Performance evaluation of different density AOMDV routing protocol for VANET

Abstract: As vehicular ad-hoc network (VANET) is a typical wireless mobile communication network and data packet routing in between various nodes is difficult task in an open network. As the various nodes are mobile and it located different places and to have communication in between nodes we used wireless channel. To have effective connection between nodes we used ad-hoc on demand multipath distance vector routing protocol (AOMDV). The evaluation of AOMDV routing protocol into two different traffic pattern Constant Bit Rate (CBR) & transmission Control Protocol (TCP) using Network Simulator 2 (NS2). As demand is increases in an open network communication then we must have to maximize the utility of VANETs (Vehicular Ad-hoc Networks) especially in the plane of high mobility network. The effective routing protocol is required for reliable communication to be established between sources to destination node in a network. In our work we are going to design network to avoid traffic jam on difference populated network as time changes in a day and to effectively provide alternate path in emergency services like Ambulance, Fire Brigade, Police vehicle, etc. and we are going to observe various parameters like PLR, PDR, Throughput, Normalized routing load, etc. for different density network.

Critical success factors and organizational performance: A study on citrus industry

Abstract: Quality management of citrus fruits is the top priority as the demand for the fruits is increasing tremendously. In order to investigate the effect of critical success factors (CSF,s) or predictors on the performance measurement factors of citrus industry, an exploratory type of study was conducted with 100 valid responses collected from citrus stake holders. Specially prepared questionnaire consisted of 102 items clubbed in to ten groups for performance improvement Input factors and 24 items clubbed in to four groups for performance measures. The questionnaire is prepared in consultation with experts of industry and 1-5 Likert scale is being used for data collection. The data obtained is tested for normality, validity and reliability then, ANOVA and multiple regression analysis is performed. The ANOVA test revealed that the perceptions associated with the findings were in conformity with the hypothesis. Quality improvement frame work or model is derived from the current study. The study revealed that business environment and resources leads to Economic, Quality, Non-financial and Innovation/ technology performance of the citrus industry. Post harvest process control and post harvest pest and disease control measures improved economic performance and technology and innovation performance. Critical factors like marketing and distribution contributed to non-financial performance. It is further seen that socio economic aspects lead to innovation and technology performance.

Compact MIMO antenna for UWB application

Abstract: A 26mm×40mm compact size MIMO (Multiple Input Multiple Output) for Ultrawide band applications is designed. The antenna elements are placed perpendicularly to each other to achieve good isolation. The antenna consists of two monopole antenna elements printed on one side of Roger substrate of 0.8mm thickness. Partial ground is used for the two monopoles which is connected by a short ground strip to form a common ground. Two long ground stubs are added with ground planes to increase the bandwidth and enhance isolation. To study the antenna performance in terms of reflection coefficients simulation and measurement are performed, thus mutual coupling, radiation pattern, realized peak gain, efficiency and envelope correlation coefficient for pattern diversity are studied. Results show that the MIMO antenna has an impedance bandwidth of larger than 3.1–10.6 GHz, low mutual coupling of less than 15 dB, and a low envelope correlation coefficient of less than 0.2 across the frequency band.

Effect of Dy2O3 on Electrical Conductivity, Dielectric Properties and Physical Properties in Lithium Borosilicate Glasses

Abstract: Glass series with general formula 30Li2O-(70-x) [1/7SiO2:6/7B2O3]-xDy2O3 was prepared using conventional melt quench technique. The Impedance spectroscopy (IS) measurement were carried out by Imped...