Pub Date : 2014-12-01DOI: 10.1109/ICPCES.2014.7062798
O. Gupta, M. Tripathy
This paper presents a fault detection and classification scheme, based on integrated impedance, for SVC compensated transmission line. For internal faults, integrated impedance of faulty phase is low and for healthy phase, it is high. For all external faults, integrated impedances of all phases are high. The protection scheme based on this concept is used for variable impedance shunt compensation (i.e. Static Var Compensator, SVC). Proposed scheme has been analyzed for each phase with different fault resistances, fault types and fault locations. The results demonstrate the effectiveness of the proposed scheme.
{"title":"An integrated impedance based pilot protection scheme for SVC compensated transmission line","authors":"O. Gupta, M. Tripathy","doi":"10.1109/ICPCES.2014.7062798","DOIUrl":"https://doi.org/10.1109/ICPCES.2014.7062798","url":null,"abstract":"This paper presents a fault detection and classification scheme, based on integrated impedance, for SVC compensated transmission line. For internal faults, integrated impedance of faulty phase is low and for healthy phase, it is high. For all external faults, integrated impedances of all phases are high. The protection scheme based on this concept is used for variable impedance shunt compensation (i.e. Static Var Compensator, SVC). Proposed scheme has been analyzed for each phase with different fault resistances, fault types and fault locations. The results demonstrate the effectiveness of the proposed scheme.","PeriodicalId":337074,"journal":{"name":"2014 International Conference on Power, Control and Embedded Systems (ICPCES)","volume":"46 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129698978","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 : 2014-12-01DOI: 10.1109/ICPCES.2014.7062824
N. C. Sekhar, T. S. Reddy, G. Bhavani
In every process industry, measuring, monitoring and controlling of process parameters (like... pressure, temperature, level, flow, humidity etc.,) plays a vital role in obtaining the desired end product. Among all the parameters temperature measurement, monitoring and control in precise is difficult as it is a slow process. Selection of the sensor for the temperature measurement is crucial. The aim of this paper is to implement low-cost MEMS (MicroElectroMechanical Systems) based real time temperature measuring, monitoring and control system which uses a monolithic temperature sensor that provides a pulse width modulated digital output signal corresponding to its input temperature. Two different platforms are chosen to implement the MEMS based temperature control system. First one is using real time controlling software NI LabVIEW and another is using PIC microcontroller. As the implemented system uses advance technologies i.e. MEMS and LabVIEW, results in compactness, low cost, high level of accuracy and wide range of temperature measurement.
{"title":"Implementation of low-cost MEMS based temperature measurement and control system using Lab VIEW and microcontroller","authors":"N. C. Sekhar, T. S. Reddy, G. Bhavani","doi":"10.1109/ICPCES.2014.7062824","DOIUrl":"https://doi.org/10.1109/ICPCES.2014.7062824","url":null,"abstract":"In every process industry, measuring, monitoring and controlling of process parameters (like... pressure, temperature, level, flow, humidity etc.,) plays a vital role in obtaining the desired end product. Among all the parameters temperature measurement, monitoring and control in precise is difficult as it is a slow process. Selection of the sensor for the temperature measurement is crucial. The aim of this paper is to implement low-cost MEMS (MicroElectroMechanical Systems) based real time temperature measuring, monitoring and control system which uses a monolithic temperature sensor that provides a pulse width modulated digital output signal corresponding to its input temperature. Two different platforms are chosen to implement the MEMS based temperature control system. First one is using real time controlling software NI LabVIEW and another is using PIC microcontroller. As the implemented system uses advance technologies i.e. MEMS and LabVIEW, results in compactness, low cost, high level of accuracy and wide range of temperature measurement.","PeriodicalId":337074,"journal":{"name":"2014 International Conference on Power, Control and Embedded Systems (ICPCES)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128402619","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 : 2014-12-01DOI: 10.1109/ICPCES.2014.7062825
M. Ferdous, A. Hossain, S. Kabir, U. Salma
Transformerless photovoltaic inverter is characterized by low loss and high efficiency features. But the topology is burdened with leakage current generation problem. In order to minimize the problem, virtual DC bus concept inverter could be a good solution which is proposed in the literature. But some problem still exists with this inverter. Although it suppresses the leakage current through PV panel to ground capacitor but it cannot eliminate the leakage current through one of the inverter phase to ground capacitor. A very conventional LCL filter is used in previous literature to solve the problem but they all offers substantial amount of leakage current in the system. In order to minimize this problem, we have proposed different designed auxiliary circuit for virtual DC bus inverter. The proposed circuit can suppress the leakage current comprehensively and improve the output voltage quality of the inverter. To verify the advantage of the proposed circuit, simulations are carried out which demonstrates a very promising result.
{"title":"Leakage current suppression in virtual DC bus inverter using improved auxiliary circuit","authors":"M. Ferdous, A. Hossain, S. Kabir, U. Salma","doi":"10.1109/ICPCES.2014.7062825","DOIUrl":"https://doi.org/10.1109/ICPCES.2014.7062825","url":null,"abstract":"Transformerless photovoltaic inverter is characterized by low loss and high efficiency features. But the topology is burdened with leakage current generation problem. In order to minimize the problem, virtual DC bus concept inverter could be a good solution which is proposed in the literature. But some problem still exists with this inverter. Although it suppresses the leakage current through PV panel to ground capacitor but it cannot eliminate the leakage current through one of the inverter phase to ground capacitor. A very conventional LCL filter is used in previous literature to solve the problem but they all offers substantial amount of leakage current in the system. In order to minimize this problem, we have proposed different designed auxiliary circuit for virtual DC bus inverter. The proposed circuit can suppress the leakage current comprehensively and improve the output voltage quality of the inverter. To verify the advantage of the proposed circuit, simulations are carried out which demonstrates a very promising result.","PeriodicalId":337074,"journal":{"name":"2014 International Conference on Power, Control and Embedded Systems (ICPCES)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126843280","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 : 2014-12-01DOI: 10.1109/ICPCES.2014.7062802
H. K. Singh, S. Pillai
Modern day high resolution data acquisition systems essentially uses sigma delta converters to achieve superior performance. These data converters utilize inbuilt Sine filtering (low pass) to remove high frequency noise shaped by sigma delta modulators. Sine filters are also called cascaded integrated-comb (CIC) digital filters. Sine filters implementation does not require multiplication therefore their realization in hardware devices is convenient. Nevertheless, these filters suffer from the problem of pass band droop (non-flat pass band), which worsens with increasing order of the filter and also from stop band ripples. This paper introduces a design and implementation of equiripple FIR filter to compensate the pass band droop in Sine filter response. The design can be implemented in any simple microcontroller such as PIC microcontroller, without using the multiplier unit. Paper also presents the results of the simulated equiripple FIR on PIC microcontroller simulator environment MPLAB IDE. The stop band ripple characteristics of the compensated filter are also discussed. This kind of implementation is suitable for high resolution telemetry system which uses embedded Sigma delta converters along with microcontroller or DSP processors. sheet.
{"title":"Digital compensation method for Sine filters in data acquisition systems based on sigma-delta ADCs","authors":"H. K. Singh, S. Pillai","doi":"10.1109/ICPCES.2014.7062802","DOIUrl":"https://doi.org/10.1109/ICPCES.2014.7062802","url":null,"abstract":"Modern day high resolution data acquisition systems essentially uses sigma delta converters to achieve superior performance. These data converters utilize inbuilt Sine filtering (low pass) to remove high frequency noise shaped by sigma delta modulators. Sine filters are also called cascaded integrated-comb (CIC) digital filters. Sine filters implementation does not require multiplication therefore their realization in hardware devices is convenient. Nevertheless, these filters suffer from the problem of pass band droop (non-flat pass band), which worsens with increasing order of the filter and also from stop band ripples. This paper introduces a design and implementation of equiripple FIR filter to compensate the pass band droop in Sine filter response. The design can be implemented in any simple microcontroller such as PIC microcontroller, without using the multiplier unit. Paper also presents the results of the simulated equiripple FIR on PIC microcontroller simulator environment MPLAB IDE. The stop band ripple characteristics of the compensated filter are also discussed. This kind of implementation is suitable for high resolution telemetry system which uses embedded Sigma delta converters along with microcontroller or DSP processors. sheet.","PeriodicalId":337074,"journal":{"name":"2014 International Conference on Power, Control and Embedded Systems (ICPCES)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115504560","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 : 2014-12-01DOI: 10.1109/ICPCES.2014.7062819
Parth Sarathi Panigrahy, P. Konar, P. Chattopadhyay
This paper proposes a FPGA friendly fused DWT-FFT based technique for broken rotor bar fault detection of induction motor. Discrete wavelet transform is implemented in FPGA platform realizing its time-frequency perseverance quality. The smallest length `Haar' wavelet is capable for detecting broken rotor bar fault with a satisfactory level of accuracy. Since Haar wavelet is used the computational burden and resource utilization are reduced as compared to others. In addition to that significant reduction in FFT computation to analyze the spectrums of specific band makes this approach very FPGA friendly.
{"title":"Broken bar fault detection using fused DWT-FFT in FPGA platform","authors":"Parth Sarathi Panigrahy, P. Konar, P. Chattopadhyay","doi":"10.1109/ICPCES.2014.7062819","DOIUrl":"https://doi.org/10.1109/ICPCES.2014.7062819","url":null,"abstract":"This paper proposes a FPGA friendly fused DWT-FFT based technique for broken rotor bar fault detection of induction motor. Discrete wavelet transform is implemented in FPGA platform realizing its time-frequency perseverance quality. The smallest length `Haar' wavelet is capable for detecting broken rotor bar fault with a satisfactory level of accuracy. Since Haar wavelet is used the computational burden and resource utilization are reduced as compared to others. In addition to that significant reduction in FFT computation to analyze the spectrums of specific band makes this approach very FPGA friendly.","PeriodicalId":337074,"journal":{"name":"2014 International Conference on Power, Control and Embedded Systems (ICPCES)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130417748","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 : 2014-12-01DOI: 10.1109/ICPCES.2014.7062801
R. K. Pandey
This paper evaluates the effectiveness of FACTS controller in AC/DC network stability improvements during operational change offered at the interface bus. In general, HVDC links have been used since decades for long distance bulk power transmission and asynchronous interconnections. However, the expansion of load and generation at respective converter station domain keep on changing due to both industrial and population growth, this may result in inadequate converter control behaviour and lead to either connecting AC system stability or converter control operational stability deterioration. Advance converter control technology has been proved successful for various changes offered dynamically, but in case of sudden fault or loss of generator the area may experience undesirable oscillations and may affect converter operation resulting in tripping of converter station. Since converters alone cannot compensate the sudden reactive power requirement due to its own control limitation, this may be viewed as operationally challenging scenario. In open access, as many HVDC links are connected in close proximity, disturbance in one link may introduce oscillation in other connected links and deteriorate the performance of the entire network. STATCOM integration in network has been found better not only for stability but also life extension of both switchyard equipments and controllers deployed. The concept has been demonstrated with study of sample system model represented in PSCAD/EMTDC environment. The analysis provides a recommendation of FACTS controller integration at inverter terminal having low ESCR.
{"title":"FACTS controller integration in AC/DC network for stability improvement","authors":"R. K. Pandey","doi":"10.1109/ICPCES.2014.7062801","DOIUrl":"https://doi.org/10.1109/ICPCES.2014.7062801","url":null,"abstract":"This paper evaluates the effectiveness of FACTS controller in AC/DC network stability improvements during operational change offered at the interface bus. In general, HVDC links have been used since decades for long distance bulk power transmission and asynchronous interconnections. However, the expansion of load and generation at respective converter station domain keep on changing due to both industrial and population growth, this may result in inadequate converter control behaviour and lead to either connecting AC system stability or converter control operational stability deterioration. Advance converter control technology has been proved successful for various changes offered dynamically, but in case of sudden fault or loss of generator the area may experience undesirable oscillations and may affect converter operation resulting in tripping of converter station. Since converters alone cannot compensate the sudden reactive power requirement due to its own control limitation, this may be viewed as operationally challenging scenario. In open access, as many HVDC links are connected in close proximity, disturbance in one link may introduce oscillation in other connected links and deteriorate the performance of the entire network. STATCOM integration in network has been found better not only for stability but also life extension of both switchyard equipments and controllers deployed. The concept has been demonstrated with study of sample system model represented in PSCAD/EMTDC environment. The analysis provides a recommendation of FACTS controller integration at inverter terminal having low ESCR.","PeriodicalId":337074,"journal":{"name":"2014 International Conference on Power, Control and Embedded Systems (ICPCES)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132996209","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 : 2014-12-01DOI: 10.1109/ICPCES.2014.7062814
Kingshuk Mukherjee
With the increase in the number of vehicles on road, there has been a marked increase in the number of crimes involving vehicle theft. In spite of several stringent laws being in place and security measures taken by car manufacturers, thieves still find a way to remain one step ahead and vehicle theft is still among one of the most reported crimes worldwide. Due to the expensive nature of motor vehicles, there is ample incentive for petty thieves to attempt thefts and a simple redecoration of the exterior makes it almost impossible to track the stolen vehicles. Numerous technologies have been mooted from time to time but have been unable to make a big mark due to their price ineffectiveness and complicated mechanisms. In this document a simple and economical solution to the problem has been presented. This scheme can be assembled and used even by private car owners and provides reasonable protection against vehicle theft.
{"title":"Anti-theft vehicle tracking and immobilization system","authors":"Kingshuk Mukherjee","doi":"10.1109/ICPCES.2014.7062814","DOIUrl":"https://doi.org/10.1109/ICPCES.2014.7062814","url":null,"abstract":"With the increase in the number of vehicles on road, there has been a marked increase in the number of crimes involving vehicle theft. In spite of several stringent laws being in place and security measures taken by car manufacturers, thieves still find a way to remain one step ahead and vehicle theft is still among one of the most reported crimes worldwide. Due to the expensive nature of motor vehicles, there is ample incentive for petty thieves to attempt thefts and a simple redecoration of the exterior makes it almost impossible to track the stolen vehicles. Numerous technologies have been mooted from time to time but have been unable to make a big mark due to their price ineffectiveness and complicated mechanisms. In this document a simple and economical solution to the problem has been presented. This scheme can be assembled and used even by private car owners and provides reasonable protection against vehicle theft.","PeriodicalId":337074,"journal":{"name":"2014 International Conference on Power, Control and Embedded Systems (ICPCES)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134008582","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 : 2014-12-01DOI: 10.1109/ICPCES.2014.7062811
V. Patel, Balaram Saha, K. Chatterjee
In today's world, electricity is mainly generated from coal based thermal power plants that used coal as its primary fuel. In spite of an increase of the renewable power into the grid, Coal based Thermal power plants are going to rule the power generation sector in the future to meet the fast growing power needs of the country. Solar energy is one of the easily available sources of renewable energy and could be used to increase the effectiveness of steam power plants. This paper establishes that the fuel saving in coal-fired Power plant by integrating solar energy to increase the temperature of the feed water entering the boiler. As a result, the amount of fuel required to heat the feed water within the boiler to produce steam is reduced. This plant model incorporates a field with solar Fresnel collectors that directly heats boiler feed water. The proposed plant model modification saves substantial fossil fuel input reduction. The best results can be acquired when the group of high pressure heaters (HPH) is replaced by solar field and feed water temperature exceeds its original design value. So it required less amount of heat input from the boiler. A pulverized coal power plant is one of the main CO2 release resources. The integration of the solar field into a pulverized coal power plant assists it to reduce the coal consumption and CO2 emissions.
{"title":"Fuel saving in coal-fired power plant with augmentation of solar energy","authors":"V. Patel, Balaram Saha, K. Chatterjee","doi":"10.1109/ICPCES.2014.7062811","DOIUrl":"https://doi.org/10.1109/ICPCES.2014.7062811","url":null,"abstract":"In today's world, electricity is mainly generated from coal based thermal power plants that used coal as its primary fuel. In spite of an increase of the renewable power into the grid, Coal based Thermal power plants are going to rule the power generation sector in the future to meet the fast growing power needs of the country. Solar energy is one of the easily available sources of renewable energy and could be used to increase the effectiveness of steam power plants. This paper establishes that the fuel saving in coal-fired Power plant by integrating solar energy to increase the temperature of the feed water entering the boiler. As a result, the amount of fuel required to heat the feed water within the boiler to produce steam is reduced. This plant model incorporates a field with solar Fresnel collectors that directly heats boiler feed water. The proposed plant model modification saves substantial fossil fuel input reduction. The best results can be acquired when the group of high pressure heaters (HPH) is replaced by solar field and feed water temperature exceeds its original design value. So it required less amount of heat input from the boiler. A pulverized coal power plant is one of the main CO2 release resources. The integration of the solar field into a pulverized coal power plant assists it to reduce the coal consumption and CO2 emissions.","PeriodicalId":337074,"journal":{"name":"2014 International Conference on Power, Control and Embedded Systems (ICPCES)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128475223","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 : 2014-03-17DOI: 10.1109/ICPCES.2014.7062800
Ahmed Khamis, S. Naidu
In this paper, an effective online method used for finite-horizon, nonlinear, stochastic tracking problems, is presented. The method incorporates the finite-horizon State Dependent Riccati Equation (SDRE) with Kaiman filter to account for the stochastic environment thereby extending the application spectrum to nonlinear systems and overcoming the hurdle with linear tracking systems limited to small variations around the operating point. The method is illustrated by both computer simulation and experimental verification via hardware in the loop Simulation (HILS).
{"title":"Experimental validation for nonlinear estimation and tracking using finite-horizon SDRE","authors":"Ahmed Khamis, S. Naidu","doi":"10.1109/ICPCES.2014.7062800","DOIUrl":"https://doi.org/10.1109/ICPCES.2014.7062800","url":null,"abstract":"In this paper, an effective online method used for finite-horizon, nonlinear, stochastic tracking problems, is presented. The method incorporates the finite-horizon State Dependent Riccati Equation (SDRE) with Kaiman filter to account for the stochastic environment thereby extending the application spectrum to nonlinear systems and overcoming the hurdle with linear tracking systems limited to small variations around the operating point. The method is illustrated by both computer simulation and experimental verification via hardware in the loop Simulation (HILS).","PeriodicalId":337074,"journal":{"name":"2014 International Conference on Power, Control and Embedded Systems (ICPCES)","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124397215","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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