Pub Date : 2019-03-01DOI: 10.1109/i-PACT44901.2019.8959988
N. Sumedh, P. G. Hitesh, Sagar Basavaraju
System modeling has become one of the most actively researched fields in the last decade. This new-found interest in modeling of systems can be attributed to the impact it has as an inter-disciplinary concept as well as the increased need for optimized and intelligent modeling techniques for disruptive technologies such as machine learning, artificial intelligence and computer vision.This study proposes a generalized mathematical formula to frame a designated function (Target Function) with the help of an available function (Regressor Function) and predictor variables. Categorically, this research attempts to aid designers by providing a mathematical framework for them to substitute their datasets and obtain results thereby reducing the complexity of mathematical modeling required. Furthermore, the discussed design schematics have proved capable of modeling systems with algebraic, transcendental, stochastic behaviours. The necessary calculations and mathematical formulations have been tabulated and deliberated for the same.
{"title":"System Modeling using Predictor classes","authors":"N. Sumedh, P. G. Hitesh, Sagar Basavaraju","doi":"10.1109/i-PACT44901.2019.8959988","DOIUrl":"https://doi.org/10.1109/i-PACT44901.2019.8959988","url":null,"abstract":"System modeling has become one of the most actively researched fields in the last decade. This new-found interest in modeling of systems can be attributed to the impact it has as an inter-disciplinary concept as well as the increased need for optimized and intelligent modeling techniques for disruptive technologies such as machine learning, artificial intelligence and computer vision.This study proposes a generalized mathematical formula to frame a designated function (Target Function) with the help of an available function (Regressor Function) and predictor variables. Categorically, this research attempts to aid designers by providing a mathematical framework for them to substitute their datasets and obtain results thereby reducing the complexity of mathematical modeling required. Furthermore, the discussed design schematics have proved capable of modeling systems with algebraic, transcendental, stochastic behaviours. The necessary calculations and mathematical formulations have been tabulated and deliberated for the same.","PeriodicalId":214890,"journal":{"name":"2019 Innovations in Power and Advanced Computing Technologies (i-PACT)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123404738","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 : 2019-03-01DOI: 10.1109/i-PACT44901.2019.8960181
C.B Arya Christy, Sreena Sreekumar, J. S. Savier
Integration of new energy sources in to existing grid may creates some major issues in the system, especially in protection co-ordination. This paper concentrate on the impact analysis of radial distribution network due to the insertion of Distributed Generation (DG). Different protection issues with DGs are focused here with co-ordinated radial power flow. A new methodology which reduces the effect of DG in protection coordination of the existing system is proposed. In this adaptive scheme, various protection co-ordination settings are provided in different locations of DG with different configurations of network. A portion of IEEE 13 node radial distribution test feeder is used to verify this proposed methodology. Electrical equivalent of 3 bus systems is also used for the analytical derivation of key parameters under faulted condition.
{"title":"Impact Assessment of DG in Radial Distribution Networks","authors":"C.B Arya Christy, Sreena Sreekumar, J. S. Savier","doi":"10.1109/i-PACT44901.2019.8960181","DOIUrl":"https://doi.org/10.1109/i-PACT44901.2019.8960181","url":null,"abstract":"Integration of new energy sources in to existing grid may creates some major issues in the system, especially in protection co-ordination. This paper concentrate on the impact analysis of radial distribution network due to the insertion of Distributed Generation (DG). Different protection issues with DGs are focused here with co-ordinated radial power flow. A new methodology which reduces the effect of DG in protection coordination of the existing system is proposed. In this adaptive scheme, various protection co-ordination settings are provided in different locations of DG with different configurations of network. A portion of IEEE 13 node radial distribution test feeder is used to verify this proposed methodology. Electrical equivalent of 3 bus systems is also used for the analytical derivation of key parameters under faulted condition.","PeriodicalId":214890,"journal":{"name":"2019 Innovations in Power and Advanced Computing Technologies (i-PACT)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121540372","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 : 2019-03-01DOI: 10.1109/i-PACT44901.2019.8960225
K. Dhayalini, R. Mukesh
In solar photovoltaic generation (SPVG) the sizing and setting of optimal of distribution is found very difficult. In this paper the optimal sizing and setting is found to be calculated by using beta distribution function (BDF) is used for the modulation of solar irradiance. The optimization problem is found and it is solved by using dynamic harmony search algorithm. The load is found uncertain and it is utilized by a boundary power flow. By considering the uncertainty of the load the new approach is done by using the radial electrical distribution system (EDS).
{"title":"Optimal setting and sizing of distributed solar photovoltaic generation in an electrical distribution system","authors":"K. Dhayalini, R. Mukesh","doi":"10.1109/i-PACT44901.2019.8960225","DOIUrl":"https://doi.org/10.1109/i-PACT44901.2019.8960225","url":null,"abstract":"In solar photovoltaic generation (SPVG) the sizing and setting of optimal of distribution is found very difficult. In this paper the optimal sizing and setting is found to be calculated by using beta distribution function (BDF) is used for the modulation of solar irradiance. The optimization problem is found and it is solved by using dynamic harmony search algorithm. The load is found uncertain and it is utilized by a boundary power flow. By considering the uncertainty of the load the new approach is done by using the radial electrical distribution system (EDS).","PeriodicalId":214890,"journal":{"name":"2019 Innovations in Power and Advanced Computing Technologies (i-PACT)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126364955","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 : 2019-03-01DOI: 10.1109/i-PACT44901.2019.8959971
K. Sharma, Senthil Prabu Ramalingam, S. Karthikeyan, I. Raglend
Electrical energy is the most fundamental elements of infrastructure and it is important for economic development and progress of any nation. As a result of population explosion and economic development, energy utilization has been increasing at a dramatically faster rate in India. The rapid growth of a nation’s economy places heavy demand for electric power. A large portion of the electric demand is fulfilled by fossil fuel which discharges harmful gases in the atmosphere. In order to reduce greenhouse gas emission and to develop efficient and reliable ways to harness energy, renewable sources can be viewed as one of the best possible alternatives. The main aim of the power producers should be to develop smart and sustainable energy systems for the country. This paper documents the current status and potential of renewable energy in India along with role of private power producers. This paper also reviews the major operations and contribution of private power producers in the power sector.
{"title":"Indian Power Sector- Need of Privatization and Current Status","authors":"K. Sharma, Senthil Prabu Ramalingam, S. Karthikeyan, I. Raglend","doi":"10.1109/i-PACT44901.2019.8959971","DOIUrl":"https://doi.org/10.1109/i-PACT44901.2019.8959971","url":null,"abstract":"Electrical energy is the most fundamental elements of infrastructure and it is important for economic development and progress of any nation. As a result of population explosion and economic development, energy utilization has been increasing at a dramatically faster rate in India. The rapid growth of a nation’s economy places heavy demand for electric power. A large portion of the electric demand is fulfilled by fossil fuel which discharges harmful gases in the atmosphere. In order to reduce greenhouse gas emission and to develop efficient and reliable ways to harness energy, renewable sources can be viewed as one of the best possible alternatives. The main aim of the power producers should be to develop smart and sustainable energy systems for the country. This paper documents the current status and potential of renewable energy in India along with role of private power producers. This paper also reviews the major operations and contribution of private power producers in the power sector.","PeriodicalId":214890,"journal":{"name":"2019 Innovations in Power and Advanced Computing Technologies (i-PACT)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116647920","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 : 2019-03-01DOI: 10.1109/i-PACT44901.2019.8960034
P. M, R. R, P. Pabitha
In dynamic informal networks change the information prevailing inside them in perspective with time. An approach to distinguish the information existed in each nodes was achieved by recognizing the subnetworks or Communities inside the network through Community-Based models. To increase the utility capacity also estimated the degree to networks that are founded. The information about the networks will be not known and consequently the nature of the topology and instability data inside a Dynamic Social Network(DSN). It maximized the cost of finding the communities from the large networks and to reduce the cost expenditure in finding the communities; a novel greedy based approach has been proposed. The K values determine the total number of communities that are to be formed. The Network-based model foresee the individuals from the networks proposed strategy will likewise distinguish the network -based model that can catch the qualities of basic opening spanners productively and decline the connection upkeep cost in the extensive scale systems. An decrease in the cost of finding the optimal communities in comparison with the existing hierarchical and Clique census community detection approaches was achieved by the Top-k greedy approach with an optimal cost percent of 42.6.
{"title":"A Novel Algorithm for Top- k Community Detection In Dynamic Social Networks","authors":"P. M, R. R, P. Pabitha","doi":"10.1109/i-PACT44901.2019.8960034","DOIUrl":"https://doi.org/10.1109/i-PACT44901.2019.8960034","url":null,"abstract":"In dynamic informal networks change the information prevailing inside them in perspective with time. An approach to distinguish the information existed in each nodes was achieved by recognizing the subnetworks or Communities inside the network through Community-Based models. To increase the utility capacity also estimated the degree to networks that are founded. The information about the networks will be not known and consequently the nature of the topology and instability data inside a Dynamic Social Network(DSN). It maximized the cost of finding the communities from the large networks and to reduce the cost expenditure in finding the communities; a novel greedy based approach has been proposed. The K values determine the total number of communities that are to be formed. The Network-based model foresee the individuals from the networks proposed strategy will likewise distinguish the network -based model that can catch the qualities of basic opening spanners productively and decline the connection upkeep cost in the extensive scale systems. An decrease in the cost of finding the optimal communities in comparison with the existing hierarchical and Clique census community detection approaches was achieved by the Top-k greedy approach with an optimal cost percent of 42.6.","PeriodicalId":214890,"journal":{"name":"2019 Innovations in Power and Advanced Computing Technologies (i-PACT)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121732695","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 : 2019-03-01DOI: 10.1109/i-PACT44901.2019.8960167
S. P, S. Rm
In recent years, Thermophotovoltaics (TPV) have become a hot and essential research area due to the increase in requirement of electrical energy at global level as well as the scarcity on other fossil fuels. TPV is a technology which uses the application of photovoltaic diodes for generating electricity from thermal radiation. This process is generally achieved by using thermal emitters that are heated to a temperature greater than 800º C. In this work, we have designed a circular TPV cell using Silicon Carbide as an emitter and Gallium Antimonide as solar PV cells. The emitter is operated at a heat varying from 1000 K to 2000 K using parametric solver at a regular interval of 100 K. We have analyzed how the heat transfers with surface to surface radiation at a stationary condition. The temperature distribution and electrical power output of TPV cell is also observed. It is observed that the proposed TPV cell produces a maximum of 27000 W/m2 electrical power output at an emitter temperature of 1700 K and solar temperature of 1300 K.
{"title":"Numerical modeling and Simulation of Thermophotovoltaic Cell using COMSOL","authors":"S. P, S. Rm","doi":"10.1109/i-PACT44901.2019.8960167","DOIUrl":"https://doi.org/10.1109/i-PACT44901.2019.8960167","url":null,"abstract":"In recent years, Thermophotovoltaics (TPV) have become a hot and essential research area due to the increase in requirement of electrical energy at global level as well as the scarcity on other fossil fuels. TPV is a technology which uses the application of photovoltaic diodes for generating electricity from thermal radiation. This process is generally achieved by using thermal emitters that are heated to a temperature greater than 800º C. In this work, we have designed a circular TPV cell using Silicon Carbide as an emitter and Gallium Antimonide as solar PV cells. The emitter is operated at a heat varying from 1000 K to 2000 K using parametric solver at a regular interval of 100 K. We have analyzed how the heat transfers with surface to surface radiation at a stationary condition. The temperature distribution and electrical power output of TPV cell is also observed. It is observed that the proposed TPV cell produces a maximum of 27000 W/m2 electrical power output at an emitter temperature of 1700 K and solar temperature of 1300 K.","PeriodicalId":214890,"journal":{"name":"2019 Innovations in Power and Advanced Computing Technologies (i-PACT)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122432311","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 : 2019-03-01DOI: 10.1109/i-PACT44901.2019.8960084
M. B. Hemanth Kumar, B. Saravanan
Grid stability can be improved by implementing various energy storage devices in the power system and among them one of the storage system is compressed air energy storage system (CAES). This CAES can be used for management of variation in the renewable energy and grid demand. The only drawback with CAES is that its cost is high compared with other storage technologies. The research is under development to operate CAES in an most efficient and economic way with maximum utilization of energy stored with least thermal losses. In this paper CAES is used for meeting the reactive power for the wind farm when it is subjected to fault at different bus locations. Here an doubly fed induction generator(DFIG) based wind turine(WT) with CAES performance shows better than static var compensator(SVC). This shows that CAES can be used as reactive power source for improving the system performance in the case of stability.
{"title":"A Solution for Stability Improvement through Compressed Air Energy Storage as Reactive Power Compensating Device under Various Grid Faults","authors":"M. B. Hemanth Kumar, B. Saravanan","doi":"10.1109/i-PACT44901.2019.8960084","DOIUrl":"https://doi.org/10.1109/i-PACT44901.2019.8960084","url":null,"abstract":"Grid stability can be improved by implementing various energy storage devices in the power system and among them one of the storage system is compressed air energy storage system (CAES). This CAES can be used for management of variation in the renewable energy and grid demand. The only drawback with CAES is that its cost is high compared with other storage technologies. The research is under development to operate CAES in an most efficient and economic way with maximum utilization of energy stored with least thermal losses. In this paper CAES is used for meeting the reactive power for the wind farm when it is subjected to fault at different bus locations. Here an doubly fed induction generator(DFIG) based wind turine(WT) with CAES performance shows better than static var compensator(SVC). This shows that CAES can be used as reactive power source for improving the system performance in the case of stability.","PeriodicalId":214890,"journal":{"name":"2019 Innovations in Power and Advanced Computing Technologies (i-PACT)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132000249","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 : 2019-03-01DOI: 10.1109/i-PACT44901.2019.8960213
A. Umamageswari, A. Jebasheela, Ruby Durairaj, Dr. M. A. Leo Vijilious
The objective of the work is to provide security to the medical images by embedding medical data (EPR-Electronic Patient Record) along with the image to reduce the bandwidth during communication. Reversible watermarking and Digital Signature itself will provide high security. This application mainly used in tele-surgery (Medical Expert to Medical Expert Communication). Only the authorized medical experts can explore the patients’ image because of Kerberos. The proposed work is mainly to restrict the unauthorized access to get the patients'data. So medical image authentication may be achieved without biometric recognition such as finger prints and eye stamps etc. The EPR itself contains the patients’ entire history, so after the extraction process Medical expert can able to identify the patient and also the disease information. In future we can embed the EPR inside the medical image after it got encrypted to achieve more security. To increase the authentication, Medical Expert biometric information can be embedded inside the image in the future. Experiments were conducted using more than 500 (512×512) image archives in various modalities from the NIH (National Institute of Health) and Aycan sample digital images downloaded from the internet and tests are conducted. Almost in all images with greater than 15000 bits embedding size and got PSNR of 60.4 dB to 78.9 dB with low distortion in received image because of compression, not because of watermarking and average NPCR (Number of Pixels Change Rate) is 98.9 %.
该工作的目的是通过在图像中嵌入医疗数据(epr -电子病历)来保证医学图像的安全性，以减少通信过程中的带宽。可逆水印和数字签名本身将提供高安全性。该应用程序主要用于远程手术(医学专家对医学专家通信)。由于Kerberos，只有经过授权的医学专家才能对患者的图像进行探索。所提出的工作主要是限制未经授权的访问以获取患者数据。因此，医学图像认证可以在不需要指纹、眼戳等生物特征识别的情况下实现。EPR本身包含了患者的整个病史，因此在提取过程后，医学专家可以识别患者和疾病信息。在未来，我们可以将EPR嵌入经过加密的医学图像中，以达到更高的安全性。为了增加身份验证，未来可以将医学专家的生物特征信息嵌入到图像中。实验使用了来自美国国立卫生研究院(NIH)和Aycan从互联网下载的数字图像样本的500多张不同形式的图像档案(512×512)进行，并进行了测试。在几乎所有大于15000位嵌入尺寸的图像中，通过压缩而非水印，接收图像的PSNR在60.4 dB ~ 78.9 dB之间，失真程度低，平均NPCR (Number of Pixels Change Rate)为98.9%。
{"title":"Enhancing Security in Medical Image Informatics with Various Attacks","authors":"A. Umamageswari, A. Jebasheela, Ruby Durairaj, Dr. M. A. Leo Vijilious","doi":"10.1109/i-PACT44901.2019.8960213","DOIUrl":"https://doi.org/10.1109/i-PACT44901.2019.8960213","url":null,"abstract":"The objective of the work is to provide security to the medical images by embedding medical data (EPR-Electronic Patient Record) along with the image to reduce the bandwidth during communication. Reversible watermarking and Digital Signature itself will provide high security. This application mainly used in tele-surgery (Medical Expert to Medical Expert Communication). Only the authorized medical experts can explore the patients’ image because of Kerberos. The proposed work is mainly to restrict the unauthorized access to get the patients'data. So medical image authentication may be achieved without biometric recognition such as finger prints and eye stamps etc. The EPR itself contains the patients’ entire history, so after the extraction process Medical expert can able to identify the patient and also the disease information. In future we can embed the EPR inside the medical image after it got encrypted to achieve more security. To increase the authentication, Medical Expert biometric information can be embedded inside the image in the future. Experiments were conducted using more than 500 (512×512) image archives in various modalities from the NIH (National Institute of Health) and Aycan sample digital images downloaded from the internet and tests are conducted. Almost in all images with greater than 15000 bits embedding size and got PSNR of 60.4 dB to 78.9 dB with low distortion in received image because of compression, not because of watermarking and average NPCR (Number of Pixels Change Rate) is 98.9 %.","PeriodicalId":214890,"journal":{"name":"2019 Innovations in Power and Advanced Computing Technologies (i-PACT)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134279583","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 : 2019-03-01DOI: 10.1109/i-PACT44901.2019.8960250
A. Hota, Mohammad M. Qasim, J. Kirtley, V. Agarwal
Model predictive control (MPC) is gaining popularity for power electronics systems due to its various advantages. Hence, it is expected that MPC would be very effective for the control of home appliance motors. However, for the control of a low-cost home appliance motor drive, an open loop control would suffice. In this work, the option of using the MPC for the open-loop home appliance applications, is explored. In an open loop system, a feedback is not used but MPC requires a feedback to operate as it is closed loop in nature. Therefore, a virtual feedback generation (VFG) strategy is used, where the fed-back voltage is not sensed but calculated using the switching pulses and inverter dc-link voltage. Later this open loop MPC is further modified to use in an electrolytic capacitorless induction motor drive. In this drive the dc-link electrolytic capacitor is reduced to such a value that it can be replaced with a film capacitor of comparable cost. However, this causes significant ripple in the dc-link. But, due to the application of the proposed control strategy, the performance of the drive is not affected. Simulation studies are carried out in MATLAB/SIMULINK platform and presented in this paper to validate the various claims.
{"title":"A Low Cost Electrolytic Capacitor-less Induction Motor Drive Based on a Novel Open Loop Model Predictive Control Strategy","authors":"A. Hota, Mohammad M. Qasim, J. Kirtley, V. Agarwal","doi":"10.1109/i-PACT44901.2019.8960250","DOIUrl":"https://doi.org/10.1109/i-PACT44901.2019.8960250","url":null,"abstract":"Model predictive control (MPC) is gaining popularity for power electronics systems due to its various advantages. Hence, it is expected that MPC would be very effective for the control of home appliance motors. However, for the control of a low-cost home appliance motor drive, an open loop control would suffice. In this work, the option of using the MPC for the open-loop home appliance applications, is explored. In an open loop system, a feedback is not used but MPC requires a feedback to operate as it is closed loop in nature. Therefore, a virtual feedback generation (VFG) strategy is used, where the fed-back voltage is not sensed but calculated using the switching pulses and inverter dc-link voltage. Later this open loop MPC is further modified to use in an electrolytic capacitorless induction motor drive. In this drive the dc-link electrolytic capacitor is reduced to such a value that it can be replaced with a film capacitor of comparable cost. However, this causes significant ripple in the dc-link. But, due to the application of the proposed control strategy, the performance of the drive is not affected. Simulation studies are carried out in MATLAB/SIMULINK platform and presented in this paper to validate the various claims.","PeriodicalId":214890,"journal":{"name":"2019 Innovations in Power and Advanced Computing Technologies (i-PACT)","volume":"7 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131804051","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 : 2019-03-01DOI: 10.1109/i-PACT44901.2019.8960103
Nayana Br, P. Geethanjali
Operating induction machine throughout the year is vital, thus maintenance and diagnosing within stipulated time is very essential. Else, this leads to complete shutdown of the systems and huge production losses. Thus a robust diagnosing scheme is essential for mechanical fault detection at incipient stages, as the probability of mechanical fault occurrences is high. In this work normal bearing, natural cage defective bearing and natural outer race defective bearings are considered. Prior to classification, the presence of fault is validated using spectra of current and vibration signals. This work demonstrates a simple fault diagnosing scheme using 3 different classifiers. 12 statistical time domain features are extracted from vibration and current signals. Feature plots of all conditions are investigated in detail. Experimental results showed that features slope sign changes, variance and standard deviation are performing good irrespective of the signal recorded and NB classifier performs well irrespective of the signal recorded and the feature employed.
{"title":"Feature Extraction for Bearing Fault Diagnosis in Noisy Environment: A Study","authors":"Nayana Br, P. Geethanjali","doi":"10.1109/i-PACT44901.2019.8960103","DOIUrl":"https://doi.org/10.1109/i-PACT44901.2019.8960103","url":null,"abstract":"Operating induction machine throughout the year is vital, thus maintenance and diagnosing within stipulated time is very essential. Else, this leads to complete shutdown of the systems and huge production losses. Thus a robust diagnosing scheme is essential for mechanical fault detection at incipient stages, as the probability of mechanical fault occurrences is high. In this work normal bearing, natural cage defective bearing and natural outer race defective bearings are considered. Prior to classification, the presence of fault is validated using spectra of current and vibration signals. This work demonstrates a simple fault diagnosing scheme using 3 different classifiers. 12 statistical time domain features are extracted from vibration and current signals. Feature plots of all conditions are investigated in detail. Experimental results showed that features slope sign changes, variance and standard deviation are performing good irrespective of the signal recorded and NB classifier performs well irrespective of the signal recorded and the feature employed.","PeriodicalId":214890,"journal":{"name":"2019 Innovations in Power and Advanced Computing Technologies (i-PACT)","volume":"8 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114007046","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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