{"title":"Improved Sparsity Aware Collaborative Spectrum Estimation for Small Cell Networks","authors":"B. K. Das, Arpan Mukherjee","doi":"10.1109/CALCON49167.2020.9106549","DOIUrl":"https://doi.org/10.1109/CALCON49167.2020.9106549","url":null,"abstract":"In this paper, we propose some new adaptive approach for collaborative spectrum estimation in small scale Wireless Sensor Networks (WSN). The newly proposed regularized proportionate normalized least mean square (RPNLMS) diffusion adapt-then-combine (ATC) algorithm exploits the sparsity in the basis extension model for power spectral density (PSD) estimation. The proposed algorithm outperforms the existing sparsity aware ATC diffusion approach for the real-time collaborative spectrum estimation (CSE) in a WSN.","PeriodicalId":318478,"journal":{"name":"2020 IEEE Calcutta Conference (CALCON)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114383576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Chidurala Saiprakash, A. Mohapatra, B. Nayak, S. R. Ghatak
{"title":"Performance Enhancement of PV Array under Partial Shading Condition by Modified BL Configuration","authors":"Chidurala Saiprakash, A. Mohapatra, B. Nayak, S. R. Ghatak","doi":"10.1109/CALCON49167.2020.9106517","DOIUrl":"https://doi.org/10.1109/CALCON49167.2020.9106517","url":null,"abstract":"The performance of PV array degrades due to uncertain solar irradiance characteristics. These situations become worsen at the time of partial shading (PS). Due to PS, there is a mismatch in electrical characteristics of the PV module in an array, which results in a significant reduction in PV output power. The output power reduction depends upon the amount of mismatch, which depends on factors such as array size, type of configuration and shading patterns. To reduce the partial shading effect and to improve the PV output power under different shading conditions, a modified Bridge link (BL) array configuration has been proposed in this paper. The performance of the proposed array configuration has been compared with different conventional array configuration, and its superiority has been discussed.","PeriodicalId":318478,"journal":{"name":"2020 IEEE Calcutta Conference (CALCON)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125534900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Debarpan Bhattacharya, Pranabendra Prasad Chandra, Biswajit Bhattacharyya, S. Munshi
{"title":"Optimized Thermocouple Temperature Sensor using 555 Timer and ANN Based Linearization","authors":"Debarpan Bhattacharya, Pranabendra Prasad Chandra, Biswajit Bhattacharyya, S. Munshi","doi":"10.1109/CALCON49167.2020.9106536","DOIUrl":"https://doi.org/10.1109/CALCON49167.2020.9106536","url":null,"abstract":"The presented work reports a low-cost, two-stage linearization scheme for thermocouple based temperature sensing. The first stage involves IC555 based astable multivibrator. An NTC thermistor is employed as a discharging resistor of multivibrator to facilitate reference junction compensation as well as the measurement of ambient temperature. The second stage of linearization employs ANN based fitting between the output of IC555 and true temperature. The linearization scheme uses a trade-off between the fast response of IC555 based arrangement and exorbitant accuracy of ANN-based arrangement, to optimize the performance of the sensor. The PSpice based simulation study is carried out with a T-type thermocouple for temperature range of 80°C to 125°C while the ambient temperature varies from 25°C up to 40°C. It offers absolute maximum full-scale error of 0.13%, as little as in the best existing literature, with a reduced computational burden upon the processing unit. Keywords—ANN, As table Multivibrator, IC555, Linearization, Temperature sensor.","PeriodicalId":318478,"journal":{"name":"2020 IEEE Calcutta Conference (CALCON)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130912101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effect of Shifting Gate Pulse on Output Voltage Ripple in Coupled SIDO Boost Converter","authors":"Nupur, S. Nath","doi":"10.1109/CALCON49167.2020.9106556","DOIUrl":"https://doi.org/10.1109/CALCON49167.2020.9106556","url":null,"abstract":"DC-DC converters that generate multiple DC outputs from single DC input are called single input multiple-output (SIMO) converters. The SIMO with two outputs is called a single input dual output (SIDO) converters. The SIDO converters are better than two separate single input single output (SISO) converters because of the reduced component count and increased efficiency. The coupled inductor SIDO (CI-SIDO) boost converter is analyzed in this paper. The CI-SIDO boost has two MOSFETs with two gate pulses. The methods of shifting gate pulse are introduced in CI-SIDO boost converters for reducing inductor current ripples. The shift in gate pulse changes the inductor current patterns and the capacitor current patterns. This may change the output voltage ripples; however, this is not investigated in the literature. The value of output voltage ripples decides the output capacitor value. If the shifting of gate pulses reduces the output voltage ripples, the value of the capacitor reduces, thus increasing the power density of the converter. This paper finds how significant is the effect of shifting gate pulse on output voltage ripples in CI-SIDO boost converter. The analysis is valid for different values of duty ratios and coupled inductor parameters. The analysis is verified by simulation in MATLAB Simulink.","PeriodicalId":318478,"journal":{"name":"2020 IEEE Calcutta Conference (CALCON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134367364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Mondal, Sneha Ghosh, Akash Roy, M. Kar, A. Kundu
{"title":"Effect of Doped AlGaN Width Variation on Analog Performance of Dual Gate Underlap MOS-HEMT","authors":"A. Mondal, Sneha Ghosh, Akash Roy, M. Kar, A. Kundu","doi":"10.1109/CALCON49167.2020.9106535","DOIUrl":"https://doi.org/10.1109/CALCON49167.2020.9106535","url":null,"abstract":"A Symmetric Heterojunction Underlap Double Gate (U-DG) GaN/AlGaN Metal Oxide Semiconductor High Electron Mobility Transistor (MOS-HEMT) having negatively doped AlGaN region and AlGaN spacer has been studied for varying values of doped AlGaN width in this work. This paper shows a detailed performance analysis of the Analog Figure of Merits (FoMs) with varying doped width. The effect of doping on analog performances of the device has also been scrutinized. The Figure of Merits (FoMs) like variation of Drain Current (IDS) with Gate Voltage (VGS) and Drain Current with Drain Voltage (VDS), Transconductance (gm), Output Resistance (R0) and Intrinsic Gain (gmR0) have been under investigation alongside the consequences of altering the width of doped AlGaN layer. Conduction band diagrams for both ON and OFF states are used to explain the device behaviour. Studies show that by reducing the width of the doped region in the MOS-HEMT device, better gate controllability is obtained along with higher ON current.","PeriodicalId":318478,"journal":{"name":"2020 IEEE Calcutta Conference (CALCON)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132120502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A Critical Analysis for Microgrid Formation based on Hourly Load Growth and Available Renewable Energy","authors":"N. Manna, A. Ganguly, Arindam Kumar Sil","doi":"10.1109/CALCON49167.2020.9106555","DOIUrl":"https://doi.org/10.1109/CALCON49167.2020.9106555","url":null,"abstract":"In this 21st century, Microgrid is becoming prevalent in distribution System because of a number of benefits that it has. A lot of work is going on to make the integration of microgrid in the present system easier. Our conventional power generation concept is the generation following the load profile and the distribution system is passive in nature. But on integration of the microgrid concept in the distribution system, it becomes an active system. Due to the incorporation of Distributed Generations (DGs), the idea becomes load following the source. It is therefore essential to have the information of availability of the renewable resources and installed generation capacities in advance. The advantage of microgrid lies in the fact that it can operate both in utility grid connected mode and also in autonomous mode. However, the intermittent nature of the renewable resources demands advanced knowledge of their availability for power management within and outside the microgrid. This requires proper prediction of resources a day ahead of actual operation. Wind and solar energy have the highest eligibility as renewable energy resources. Many forecasting techniques are developed and utilized for the prediction of the availability of these energies. In this field of forecasting, Artificial Neural Network (ANN) has proved itself to be very competitive. Long Short Term Memory (LSTM) network is the recent improvement of ANN which has been applied in this work for forecasting both solar and wind energy. This is compared with the forecasting using multiple feed forward neural networks. It is seen that LSTM performs better for day ahead forecasting.","PeriodicalId":318478,"journal":{"name":"2020 IEEE Calcutta Conference (CALCON)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132367966","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"QoS Analysis with Coverage, Speed and Resources on Small Cells Cellular Networks","authors":"Ayon Seal, S. Bhattacharya, I. S. Misra","doi":"10.1109/CALCON49167.2020.9106558","DOIUrl":"https://doi.org/10.1109/CALCON49167.2020.9106558","url":null,"abstract":"Cellular Communication networks are constantly evolving into smaller cells as it moves towards the latest 5G technology. This gradual evolution requires a study and understanding of all the relevant parameters in a Cellular System to obtain the best Quality of Service (QoS) in terms of Call Blocking (CB) and Call Dropping (CD). In this paper, the effect of velocity, available resources and cell size on CB and CD of cellular calls has been studied. It has been a challenge to provide an ses, as with time we are moving towards faster modes of transport. Also, to cater to the ever-increasing number of mobile users and to embrace new technologies like 5G, cell sizes will become relatively smaller than the prevalent technologies, which means the generation of a greater number of handoffs within a particular area. It is hence imperative that the effect of velocity and cell sizes be studied along with the estimation of the necessary quantum of resources- which has been done in this paper. We have observed the effect of variation of velocity of mobile along with the change in cell size. We analyze the QoS in terms of CB and CD with respect to the number of available resources (channels). Finally, this paper will provide an idea about the effects of different parameters on the QoS while cell size continuously reduces to \"Small Cells\" and to understand the frequent handoff generation that to be tackled efficiently.","PeriodicalId":318478,"journal":{"name":"2020 IEEE Calcutta Conference (CALCON)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130186406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Chatterjee, Sindhunil Bhaumik, Anisha Naskar, N. Mondal, D. Chatterjee, Susanta Ray
{"title":"A Transformer-less Grid Interactive Converter Topology for PV based Micro Generator","authors":"A. Chatterjee, Sindhunil Bhaumik, Anisha Naskar, N. Mondal, D. Chatterjee, Susanta Ray","doi":"10.1109/CALCON49167.2020.9106472","DOIUrl":"https://doi.org/10.1109/CALCON49167.2020.9106472","url":null,"abstract":"This paper presents a modified topology of the grid-connected hybrid generation system. The Power flow sequence between PV array, the DC or AC load and the Grid has also been discussed. A bidirectional converter has been introduced for this purpose. The grid power can be utilized during non-availability of either of the renewable sources especially at night time or when the load demand is not met. The control strategy is made in such a way that the angle of the inverter output voltage can be adjusted to lead the grid voltage so that active power flows to the load side. Since the output of the PV array is dependent on the solar irradiance and the cell temperature, to maximize the PV array output an efficient MPPT algorithm is implemented. The simulation has also been carried out for the proposed system.","PeriodicalId":318478,"journal":{"name":"2020 IEEE Calcutta Conference (CALCON)","volume":"125 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132695574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Holomorphic Embedding Load Flow Modeling of DSTATCOM for Active Distribution Networks","authors":"U. Sur, Amitava Biswas, J. Bera, G. Sarkar","doi":"10.1109/CALCON49167.2020.9106523","DOIUrl":"https://doi.org/10.1109/CALCON49167.2020.9106523","url":null,"abstract":"Holomorphic Embedding Load Flow study is a steady state analytical tool used over power network at its planning or implementation stage where recursive method is used to solve the equations. Due to amalgamation of distributed generators within the network the system complexity rises up, whereas, convergence time of the iterative power flow algorithms are quite high and also they does not guaranteed the convergence of load flow method. Therefore, a recursive power flow technique has been proposed namely Holomorphic Embedding method where reduction in time complexity and increase in solution existence probability is there. We proposed a new modeling technique for DSTATCOM devices for holomorphic embedding load flow problem. As this kind of FACTS device will help to regulate the voltage sag and also compensate the reactive power loss. Comparative analysis with existing load flow techniques over numerous test scenarios and a practical grid from Indian distribution system proves the proficiency and applicability of this proposed technique over the active power networks.","PeriodicalId":318478,"journal":{"name":"2020 IEEE Calcutta Conference (CALCON)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126954982","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Particle Swarm Optimization based PID-Controller Design for Volume Control of Artificial Ventilation System","authors":"Ajila T Yimchunger, D. Acharya, D. Das","doi":"10.1109/CALCON49167.2020.9106480","DOIUrl":"https://doi.org/10.1109/CALCON49167.2020.9106480","url":null,"abstract":"Artificial ventilation has become a necessary means for medical purposes. With an increase in the reliability of such devices, the need for designing a proper controller is growing. The main purpose of this paper is to design a particle swarm optimization (PSO) based PID-controller to control the volume of the artificial ventilation systems. PSO algorithm is used to tune the gains of the PID controller. It aims at improving the dynamic stability of an artificial ventilation system. A step signal is considered as the desired signal for the system which acts as a reference signal for the controller. With the optimum parameters of the designed controller, the dynamic stability of the volume control ventilation system is improved.","PeriodicalId":318478,"journal":{"name":"2020 IEEE Calcutta Conference (CALCON)","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122370355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}