Pub Date : 2016-10-01DOI: 10.1109/ICCCCM.2016.7918264
Harikesh Tripathi, Nandita Pradhan
This paper explores new way of achieving targeted reliability of any electronics module by a practice of derating. Derating is most promising and efficient technique of improving reliability of any electronics module as it replaces overstressed electronics components with under stressed components without unnecessarily increasing complexity and weight of the module. Derating practice combine with genetic optimization technique is used on a full bridge converter circuit for attaining targeted reliability in minimum possible cost. In a proposed simulated electronics module, all sort of stress factors (Voltage stress factor, Current stress factor, power stress factor and temperature stress factor) applied on components of a simulated module has been factored in. Reliability optimization problems involve a complex method of selection of components with multiple choices that produces desired result. A Genetic Algorithm method has been applied on Full Bridge Converter Circuit to demonstrate its usefulness and efficiency in achieving set reliability in minimum cost. This proposed method is more promising and efficient than the other methods of reliability optimization such as redundancy allocation as it does not increase the overall complexity and weight of the system.
{"title":"Reliability optimization of electronics module by derating using genetic algorithm","authors":"Harikesh Tripathi, Nandita Pradhan","doi":"10.1109/ICCCCM.2016.7918264","DOIUrl":"https://doi.org/10.1109/ICCCCM.2016.7918264","url":null,"abstract":"This paper explores new way of achieving targeted reliability of any electronics module by a practice of derating. Derating is most promising and efficient technique of improving reliability of any electronics module as it replaces overstressed electronics components with under stressed components without unnecessarily increasing complexity and weight of the module. Derating practice combine with genetic optimization technique is used on a full bridge converter circuit for attaining targeted reliability in minimum possible cost. In a proposed simulated electronics module, all sort of stress factors (Voltage stress factor, Current stress factor, power stress factor and temperature stress factor) applied on components of a simulated module has been factored in. Reliability optimization problems involve a complex method of selection of components with multiple choices that produces desired result. A Genetic Algorithm method has been applied on Full Bridge Converter Circuit to demonstrate its usefulness and efficiency in achieving set reliability in minimum cost. This proposed method is more promising and efficient than the other methods of reliability optimization such as redundancy allocation as it does not increase the overall complexity and weight of the system.","PeriodicalId":410488,"journal":{"name":"2016 International Conference on Control, Computing, Communication and Materials (ICCCCM)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114839332","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}
Pub Date : 2016-10-01DOI: 10.1109/ICCCCM.2016.7918220
Akhil Nigam, Abhishek Kumar Gupta
Among the renewable energy sources, the energy obtained by the photovoltaic effects is to be considered the most sustainable energy source using Photovoltaic (PV) cell because of its affluence and pervasiveness. Basically the use of PV cells in solar energy generation are widely used because they directly convert the sun's light into electrical energy. The main drawback is that the solar radiation changes with time to time. So there are many maximum power point tracking algorithms to track maximum power point. One of the most widely used algorithm is perturb and observe algorithm. It has advantage of less complexity and less maintenance. But the problem is that this algorithm cannot perform due to sudden change in temperature and solar irradiance. Therefore there is an algorithm which is called improved perturb and observe or variable step size algorithm which overcomes the drawbacks of conventional perturb and observe algorithm. This algorithm has better efficiency and faster response rather than conventional perturb and observe algorithm. All the simulations are done by using MATLAB/SIMULINK.
{"title":"Performance and simulation between conventional and improved perturb & observe MPPT algorithm for solar PVcell using MATLAB/Simulink","authors":"Akhil Nigam, Abhishek Kumar Gupta","doi":"10.1109/ICCCCM.2016.7918220","DOIUrl":"https://doi.org/10.1109/ICCCCM.2016.7918220","url":null,"abstract":"Among the renewable energy sources, the energy obtained by the photovoltaic effects is to be considered the most sustainable energy source using Photovoltaic (PV) cell because of its affluence and pervasiveness. Basically the use of PV cells in solar energy generation are widely used because they directly convert the sun's light into electrical energy. The main drawback is that the solar radiation changes with time to time. So there are many maximum power point tracking algorithms to track maximum power point. One of the most widely used algorithm is perturb and observe algorithm. It has advantage of less complexity and less maintenance. But the problem is that this algorithm cannot perform due to sudden change in temperature and solar irradiance. Therefore there is an algorithm which is called improved perturb and observe or variable step size algorithm which overcomes the drawbacks of conventional perturb and observe algorithm. This algorithm has better efficiency and faster response rather than conventional perturb and observe algorithm. All the simulations are done by using MATLAB/SIMULINK.","PeriodicalId":410488,"journal":{"name":"2016 International Conference on Control, Computing, Communication and Materials (ICCCCM)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126557037","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}
Pub Date : 2016-10-01DOI: 10.1109/ICCCCM.2016.7918262
Raju Ram Bajya, Mrs. Rajshree Taparia
Modeling of a nonlinear hydropower system and control with different types of PID controllers is discussed in this paper. Earlier first order model of hydro power plant discussed by severally but with sudden load changes and nonlinearities of hydropower system affect the system. Nonlinearities of hydropower system are discussed in this paper. External disturbances due to load changes are introduced to the system. The dynamic analyses of system with different type of PID controllers have been carried out to test the robustness of system.
{"title":"Modeling of a nonlinear hydro power plant and analysis with PID controllers","authors":"Raju Ram Bajya, Mrs. Rajshree Taparia","doi":"10.1109/ICCCCM.2016.7918262","DOIUrl":"https://doi.org/10.1109/ICCCCM.2016.7918262","url":null,"abstract":"Modeling of a nonlinear hydropower system and control with different types of PID controllers is discussed in this paper. Earlier first order model of hydro power plant discussed by severally but with sudden load changes and nonlinearities of hydropower system affect the system. Nonlinearities of hydropower system are discussed in this paper. External disturbances due to load changes are introduced to the system. The dynamic analyses of system with different type of PID controllers have been carried out to test the robustness of system.","PeriodicalId":410488,"journal":{"name":"2016 International Conference on Control, Computing, Communication and Materials (ICCCCM)","volume":"31 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128954005","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}
Pub Date : 2016-10-01DOI: 10.1109/ICCCCM.2016.7918242
Jaspreet Singh, S. Saini, Rajkiran, Ekambir Sidhu
This paper presents a novel textile microstrip antenna employing substrate of Denim material with dielectric constant of 1.6 having dimensions are 23.32mm × 27.8mm × 0.7mm. The ground, patch and feed line are of copper material. The proposed antenna is a dual resonant rectangular patch antenna with a square slot on the ground which is operated at 12.00 GHz and 12.67 GHz with corresponding return loss of −41.43 dB and −23.95 dB, respectively. The impedance bandwidth of the proposed textile antenna is 1.011 GHz (11.796 GHz-12.807 GHz) and impedance is 49.81 Ohm. The proposed antenna has been simulated using Computer Simulation Technology Microwave Studio (CST MWS 2014) Software. The performance of proposed textile antenna has been analyzed in terms of impedance bandwidth (GHz), directivity(dBi), gain (dB), return loss (dB), VSWR and impedance (ohms). The proposed antenna design has peak gain and directivity of 8.143 dB and 7.843 dBi at the resonant frequency of 12 GHz. The proposed antenna can be used for vehicle mounted earth station uplink communication applications. The proposed antenna has been practically fabricated and tested using E5071C Network Analyzer with SMA connector. Moreover, it has been concluded that the fabricated antenna experimental results closely matched with the simulated antenna results.
{"title":"High gain dual resonant textile microstrip patch antenna design employing denim substrate for vehicle mounted earth station uplink applications","authors":"Jaspreet Singh, S. Saini, Rajkiran, Ekambir Sidhu","doi":"10.1109/ICCCCM.2016.7918242","DOIUrl":"https://doi.org/10.1109/ICCCCM.2016.7918242","url":null,"abstract":"This paper presents a novel textile microstrip antenna employing substrate of Denim material with dielectric constant of 1.6 having dimensions are 23.32mm × 27.8mm × 0.7mm. The ground, patch and feed line are of copper material. The proposed antenna is a dual resonant rectangular patch antenna with a square slot on the ground which is operated at 12.00 GHz and 12.67 GHz with corresponding return loss of −41.43 dB and −23.95 dB, respectively. The impedance bandwidth of the proposed textile antenna is 1.011 GHz (11.796 GHz-12.807 GHz) and impedance is 49.81 Ohm. The proposed antenna has been simulated using Computer Simulation Technology Microwave Studio (CST MWS 2014) Software. The performance of proposed textile antenna has been analyzed in terms of impedance bandwidth (GHz), directivity(dBi), gain (dB), return loss (dB), VSWR and impedance (ohms). The proposed antenna design has peak gain and directivity of 8.143 dB and 7.843 dBi at the resonant frequency of 12 GHz. The proposed antenna can be used for vehicle mounted earth station uplink communication applications. The proposed antenna has been practically fabricated and tested using E5071C Network Analyzer with SMA connector. Moreover, it has been concluded that the fabricated antenna experimental results closely matched with the simulated antenna results.","PeriodicalId":410488,"journal":{"name":"2016 International Conference on Control, Computing, Communication and Materials (ICCCCM)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127149205","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}
Pub Date : 2016-10-01DOI: 10.1109/ICCCCM.2016.7918266
Stuti, Manish Kumar singh, S. Srivastava
Separately Excited DC motors (SEDCM) are widely used in industries because of their advantages in easy speed control and high performance. Their speed can be controlled by Armature voltage control and Field voltage control up to the base speed and above the base speed respectively. A rectifier or chopper is used as a converter to convert a fixed DC into variable DC to provide speed control to the motor. Many controllers have been applied for the control of motor speed. A closed loop control model has been developed having two control loops i.e. a speed control loop followed by a current control loop. Many researchers have proposed different models for this purpose. This paper presents a literature review of the research work done in this field till date. A comparative analysis is also done between the conventional methods and Artificial Neuro Fuzzy Inference System (ANFIS) based controller to find the best suitable method.
{"title":"ANFIS based four quadrant chopper control of separately excited DC motor: A literature review","authors":"Stuti, Manish Kumar singh, S. Srivastava","doi":"10.1109/ICCCCM.2016.7918266","DOIUrl":"https://doi.org/10.1109/ICCCCM.2016.7918266","url":null,"abstract":"Separately Excited DC motors (SEDCM) are widely used in industries because of their advantages in easy speed control and high performance. Their speed can be controlled by Armature voltage control and Field voltage control up to the base speed and above the base speed respectively. A rectifier or chopper is used as a converter to convert a fixed DC into variable DC to provide speed control to the motor. Many controllers have been applied for the control of motor speed. A closed loop control model has been developed having two control loops i.e. a speed control loop followed by a current control loop. Many researchers have proposed different models for this purpose. This paper presents a literature review of the research work done in this field till date. A comparative analysis is also done between the conventional methods and Artificial Neuro Fuzzy Inference System (ANFIS) based controller to find the best suitable method.","PeriodicalId":410488,"journal":{"name":"2016 International Conference on Control, Computing, Communication and Materials (ICCCCM)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128129957","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}
Pub Date : 2016-10-01DOI: 10.1109/ICCCCM.2016.7918251
Kamta Nath Mishra
This research paper uses Laplace Beltrami Spectra based technique for online iris image compression for a person's eye. Normalized Eigen values (i.e. the spectrum) of iris image can be stored in the Smartcard memory and then it may be used for further identification. Hence, for verifying if two iris images are isometric or not, we need to compare the first ‘n’ Eigen values of the iris image spectra. If two iris images have the same Eigen values or same Riemannian Metrics values, it means both iris images are belonging to the same person. If two iris images have different Eigen values or different Riemannian Metrics values, it means both iris images are belonging to different persons. The experiments were conducted for 50 iris images of CASIA database. The experiments prove that the proposed technique is accurately identifying individuals on the basis of their iris images. The robustness testing was conducted by modifying few pixels in specific regions and few pixels in overall image. But, still the proposed method was able to identify individuals on the basis of their iris image patterns. The results of iris implementation reveal that the proposed method is an efficient and economically feasible.
{"title":"An efficient Laplace-Beltrami Spectra based technique for online iris image compression and identification","authors":"Kamta Nath Mishra","doi":"10.1109/ICCCCM.2016.7918251","DOIUrl":"https://doi.org/10.1109/ICCCCM.2016.7918251","url":null,"abstract":"This research paper uses Laplace Beltrami Spectra based technique for online iris image compression for a person's eye. Normalized Eigen values (i.e. the spectrum) of iris image can be stored in the Smartcard memory and then it may be used for further identification. Hence, for verifying if two iris images are isometric or not, we need to compare the first ‘n’ Eigen values of the iris image spectra. If two iris images have the same Eigen values or same Riemannian Metrics values, it means both iris images are belonging to the same person. If two iris images have different Eigen values or different Riemannian Metrics values, it means both iris images are belonging to different persons. The experiments were conducted for 50 iris images of CASIA database. The experiments prove that the proposed technique is accurately identifying individuals on the basis of their iris images. The robustness testing was conducted by modifying few pixels in specific regions and few pixels in overall image. But, still the proposed method was able to identify individuals on the basis of their iris image patterns. The results of iris implementation reveal that the proposed method is an efficient and economically feasible.","PeriodicalId":410488,"journal":{"name":"2016 International Conference on Control, Computing, Communication and Materials (ICCCCM)","volume":"267 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124244583","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}
Pub Date : 2016-10-01DOI: 10.1109/ICCCCM.2016.7918238
A. Husain, R. C. Vaishya
Nowadays three dimensional city modeling are necessary for supporting numerous management applications such as in smart city planning. However, the automated determination of precise, reliable and highly accurate city models is still a tedious and challenging task, requiring a pipeline comprising several processing intensive steps. Commercially available software's for building modeling require, generally, a high degree of human interaction. In case airborne laser scanning building are typically identified by their roof points, in this research a simple methodology has been proposed for building roof extraction from airborne laser scanner data. Methodology take input of laser scanner data points which are converted into a text file with the help Lastool. Methodology needs only X, Y and Z values of each point and perform the X-Y gridding by projecting the dataset at X-Y plane. After that vertical segmentation is performed at each grid for generation of area interest and removing the unnecessary points, then area of grid point is calculated with the help of convex hull. Flattering factor is calculated for detection of probable building roof points. At last connected component analysis has been performed with the help of Cloud Compare open source software.
{"title":"Extraction of building rooffrom airborne laser scanning point cloud","authors":"A. Husain, R. C. Vaishya","doi":"10.1109/ICCCCM.2016.7918238","DOIUrl":"https://doi.org/10.1109/ICCCCM.2016.7918238","url":null,"abstract":"Nowadays three dimensional city modeling are necessary for supporting numerous management applications such as in smart city planning. However, the automated determination of precise, reliable and highly accurate city models is still a tedious and challenging task, requiring a pipeline comprising several processing intensive steps. Commercially available software's for building modeling require, generally, a high degree of human interaction. In case airborne laser scanning building are typically identified by their roof points, in this research a simple methodology has been proposed for building roof extraction from airborne laser scanner data. Methodology take input of laser scanner data points which are converted into a text file with the help Lastool. Methodology needs only X, Y and Z values of each point and perform the X-Y gridding by projecting the dataset at X-Y plane. After that vertical segmentation is performed at each grid for generation of area interest and removing the unnecessary points, then area of grid point is calculated with the help of convex hull. Flattering factor is calculated for detection of probable building roof points. At last connected component analysis has been performed with the help of Cloud Compare open source software.","PeriodicalId":410488,"journal":{"name":"2016 International Conference on Control, Computing, Communication and Materials (ICCCCM)","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121097861","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}
This paper emphasizes on the design and performance analysis of dual resonant air gap antenna design. The proposed antenna has been designed using Flame Retardant 4 (ΓΚ4) substrate of dielectric constant, εr=4.4 sandwiched between copper patch and ground plane. The design o f antenna has been made to ensure the compact size of the designed antenna and operating bandwidth of 1.007 GHz (7.281 GHz-8.288 GHz) and 560MHz (11.57 GHz-12.13 GHz). The antenna has been fe by microstrip feed line via impedance transformer to match the impedance of proposed antenna with the 50Ω impedance of coaxial connector used for feeding power to the antenna. The proposed antenna has been designed and simulated in CST Microwave Studio 2014. This antenna resonates at frequency of 7.94 GHz with the minimal return loss of −33.64 dB with an impedance bandwidth of 47.97 Ω covering the frequency range from 7.281 GHz-8.288 GHz and −30.37 dB at 11.855 GHz covering the frequency of 11.57 GHz-12.13 GHz. The antenna has gain of 6.43 dB, directivity of 7.13 dBi and percentage bandwidth of 11.92% and 4.72% at resonant frequency of 7.942 GHz and 11.855 GHz respectively. The designed antenna can be suitably employed for Defence systems (7.25 GHz–8.215 GHz), Earth exploration satellite (8.02 GHz-8.215 GHz), Land mobile (8.02 GHz-8.215 GHz), Radio determination application (7.25 GHz–8.215 GHz), Weather satellite (7.45 GHz-7.55 GHz), Broadcasting satellite (11.7 GHz-12.5 GHz) applications. The antenna has been fabricated and efficaciously tested using E5071C network analyzer and anechoic chamber. It has been perceived that the practical results closely match with the simulated results.
{"title":"Novel dual resonant air gap antenna for defence systems, earth exploration-satellite, land mobile, radio determination application, weather satellite and broadcasting satellite applications","authors":"Vatanjeet Singh, Raveena Bhatoa, Roopan, Ekambir Sidhu","doi":"10.1109/ICCCCM.2016.7918226","DOIUrl":"https://doi.org/10.1109/ICCCCM.2016.7918226","url":null,"abstract":"This paper emphasizes on the design and performance analysis of dual resonant air gap antenna design. The proposed antenna has been designed using Flame Retardant 4 (ΓΚ4) substrate of dielectric constant, εr=4.4 sandwiched between copper patch and ground plane. The design o f antenna has been made to ensure the compact size of the designed antenna and operating bandwidth of 1.007 GHz (7.281 GHz-8.288 GHz) and 560MHz (11.57 GHz-12.13 GHz). The antenna has been fe by microstrip feed line via impedance transformer to match the impedance of proposed antenna with the 50Ω impedance of coaxial connector used for feeding power to the antenna. The proposed antenna has been designed and simulated in CST Microwave Studio 2014. This antenna resonates at frequency of 7.94 GHz with the minimal return loss of −33.64 dB with an impedance bandwidth of 47.97 Ω covering the frequency range from 7.281 GHz-8.288 GHz and −30.37 dB at 11.855 GHz covering the frequency of 11.57 GHz-12.13 GHz. The antenna has gain of 6.43 dB, directivity of 7.13 dBi and percentage bandwidth of 11.92% and 4.72% at resonant frequency of 7.942 GHz and 11.855 GHz respectively. The designed antenna can be suitably employed for Defence systems (7.25 GHz–8.215 GHz), Earth exploration satellite (8.02 GHz-8.215 GHz), Land mobile (8.02 GHz-8.215 GHz), Radio determination application (7.25 GHz–8.215 GHz), Weather satellite (7.45 GHz-7.55 GHz), Broadcasting satellite (11.7 GHz-12.5 GHz) applications. The antenna has been fabricated and efficaciously tested using E5071C network analyzer and anechoic chamber. It has been perceived that the practical results closely match with the simulated results.","PeriodicalId":410488,"journal":{"name":"2016 International Conference on Control, Computing, Communication and Materials (ICCCCM)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132168651","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}
Pub Date : 2016-10-01DOI: 10.1109/ICCCCM.2016.7918237
Sanjeev Kumar, O. Singh, S. K. Aggarwal
Recent grid code particularly established for high penetration of renewable power generation in the power system demand the network support similar to conventional generator in steady state and dynamic operations. voltage instability is one of the major concerns with huge amount of wind power penetration in the existing power system which is due to insufficient amount of reactive power. Modern wind generator is used in variable speed applications equipped with power electronics converters have capability to deliver/ consumer reactive power similar to conventional generator. In present work, reactive power capability possessed by doubly fed induction generator equipped wind turbine has been analyzed by considering various constraints and compared with the reactive capability of synchronous generator.
{"title":"A comparative study for reactive power capability of doubly fed induction generator and synchronous generator","authors":"Sanjeev Kumar, O. Singh, S. K. Aggarwal","doi":"10.1109/ICCCCM.2016.7918237","DOIUrl":"https://doi.org/10.1109/ICCCCM.2016.7918237","url":null,"abstract":"Recent grid code particularly established for high penetration of renewable power generation in the power system demand the network support similar to conventional generator in steady state and dynamic operations. voltage instability is one of the major concerns with huge amount of wind power penetration in the existing power system which is due to insufficient amount of reactive power. Modern wind generator is used in variable speed applications equipped with power electronics converters have capability to deliver/ consumer reactive power similar to conventional generator. In present work, reactive power capability possessed by doubly fed induction generator equipped wind turbine has been analyzed by considering various constraints and compared with the reactive capability of synchronous generator.","PeriodicalId":410488,"journal":{"name":"2016 International Conference on Control, Computing, Communication and Materials (ICCCCM)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121687513","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}
Pub Date : 2016-10-01DOI: 10.1109/ICCCCM.2016.7918217
D. Manohar, V. Raju
This paper presents the preparation of carbon-carbon composites (CCC) from jute fibre — phenol formaldehyde (PF) resin by programmed carbonisation process. Jute/PF resin composite was prepared using hand layup technique followed by curing in compression press at 160°C under pressure of 460 bar. Carbonisation cycle was designed using TGA studies carried out up to 800°C at different heating rates in the range of 3–20 °C / min. Carbonisation experiments were carried out in both tubular furnace and hot press. Carbonisation of the composite was performed at a programmed heating rate in a hot press with application of pressure from room temperature to 800°C, the partially carbonized composite was further carbonized in the tubular furnace without application of pressure from room temperature to 1000°C in argon atmosphere under programmed heating rate. The resulting composites were characterized for density, functional groups, extent of carbonisation, graphitization, porosity and conductivity. The results show that the density of the composite before carbonisation was 1.30 g/cc which was reduced to 0.78 g/cc and 0.97 g/cc after carbonisation without and with pressure respectively indicating the weight loss due to the escape of the volatiles. The transformation of functional groups such as CH, C-OH etc to aromatic C=C, C≡C in carbonized composite was evident from FTIR studies. Raman spectra shows the evidence of graphitic structure in the carbonized composites. Surface pores in the range of 82 to 312 μm were noticed in the composite carbonised without pressure and the pore sizes were reduced to 42 to 93 μm when carbonized under pressure. Electrical conductivity also increases from 4.7 × 10−12 S/cm to 1.429 × 10−2 S/cm and 6.777 × 10−2 S/cm for the composite carbonised without and with pressure during carbonisation.
{"title":"Effect of pressure and temperature on properties of carbon-carbon composites prepared from renewable material","authors":"D. Manohar, V. Raju","doi":"10.1109/ICCCCM.2016.7918217","DOIUrl":"https://doi.org/10.1109/ICCCCM.2016.7918217","url":null,"abstract":"This paper presents the preparation of carbon-carbon composites (CCC) from jute fibre — phenol formaldehyde (PF) resin by programmed carbonisation process. Jute/PF resin composite was prepared using hand layup technique followed by curing in compression press at 160°C under pressure of 460 bar. Carbonisation cycle was designed using TGA studies carried out up to 800°C at different heating rates in the range of 3–20 °C / min. Carbonisation experiments were carried out in both tubular furnace and hot press. Carbonisation of the composite was performed at a programmed heating rate in a hot press with application of pressure from room temperature to 800°C, the partially carbonized composite was further carbonized in the tubular furnace without application of pressure from room temperature to 1000°C in argon atmosphere under programmed heating rate. The resulting composites were characterized for density, functional groups, extent of carbonisation, graphitization, porosity and conductivity. The results show that the density of the composite before carbonisation was 1.30 g/cc which was reduced to 0.78 g/cc and 0.97 g/cc after carbonisation without and with pressure respectively indicating the weight loss due to the escape of the volatiles. The transformation of functional groups such as CH, C-OH etc to aromatic C=C, C≡C in carbonized composite was evident from FTIR studies. Raman spectra shows the evidence of graphitic structure in the carbonized composites. Surface pores in the range of 82 to 312 μm were noticed in the composite carbonised without pressure and the pore sizes were reduced to 42 to 93 μm when carbonized under pressure. Electrical conductivity also increases from 4.7 × 10−12 S/cm to 1.429 × 10−2 S/cm and 6.777 × 10−2 S/cm for the composite carbonised without and with pressure during carbonisation.","PeriodicalId":410488,"journal":{"name":"2016 International Conference on Control, Computing, Communication and Materials (ICCCCM)","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127399306","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}
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