Pub Date : 2014-05-01DOI: 10.1109/TECHSYM.2014.6807908
Sonali Sinha Bhatnagar, S. Sirisha
Monte-Carlo simulation is an essential tool that assists in the design of new medical imaging devices; optimize the treatment planning in dose estimation to control tumors in oncology therapy. Geant4 and GAMOS (Geant4 based Application for Medicine Oriented Simulations) implements the optimized radiotherapy external beam application, the propagation through an accelerator geometry and the calculation of the dose in voxel phantoms. This paper gives an overview of the physical processes involved along with detailed description of the design and implementation to medical physics in Geant4 and GAMOS toolkits. We have calculated the dose deposition of a passive proton beam of 60 to 240 MeV in a human phantom geometry. The resulting Bragg peak, range, penumbra width has been calculated and verified with results of other groups. The applications of these systems in fields of nuclear fragmentation for carbon ion therapy, nuclear imaging and hadrontherapy for in vivo dose monitoring are also discussed.
{"title":"GEANT4 & GAMOS — A particle implementation of high energy simulation toolkit to oncology therapy","authors":"Sonali Sinha Bhatnagar, S. Sirisha","doi":"10.1109/TECHSYM.2014.6807908","DOIUrl":"https://doi.org/10.1109/TECHSYM.2014.6807908","url":null,"abstract":"Monte-Carlo simulation is an essential tool that assists in the design of new medical imaging devices; optimize the treatment planning in dose estimation to control tumors in oncology therapy. Geant4 and GAMOS (Geant4 based Application for Medicine Oriented Simulations) implements the optimized radiotherapy external beam application, the propagation through an accelerator geometry and the calculation of the dose in voxel phantoms. This paper gives an overview of the physical processes involved along with detailed description of the design and implementation to medical physics in Geant4 and GAMOS toolkits. We have calculated the dose deposition of a passive proton beam of 60 to 240 MeV in a human phantom geometry. The resulting Bragg peak, range, penumbra width has been calculated and verified with results of other groups. The applications of these systems in fields of nuclear fragmentation for carbon ion therapy, nuclear imaging and hadrontherapy for in vivo dose monitoring are also discussed.","PeriodicalId":265072,"journal":{"name":"Proceedings of the 2014 IEEE Students' Technology Symposium","volume":"423 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126712872","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 : 2014-05-01DOI: 10.1109/TECHSYM.2014.6807912
Tanmay Pal, Karan Jain, S. Maka
Chemical Regulation of Human Respiratory System is a complex dynamical system. Primary function of this system is to regulate gas concentrations in the Blood. It is modeled by Nonlinear Delay Differential Equations. Several dynamical models for respiratory regulation are available in the literature, which are broadly classified as Comprehensive and Minimal Models. Minimal models are derived from the comprehensive models with some assumptions and are linearized for simplified analysis. Current literatures in these mathematical modeling approaches are directed towards describing pathological conditions, giving little thrust for the prediction. Analyses of these systems are not straightforward because of the variable time delay. From the system's point of view, increasing delay makes the system oscillatory. Physiologically, delay depends on the blood flow. In this model, delay in feedback loop of alveolar oxygen and carbon dioxide partial pressures make the system oscillatory, causing discomfort or fatal to the subject. Present analysis is motivated to find out the range of delay for comfortable operation of the system.
{"title":"Stability analysis of Human Respiratory System","authors":"Tanmay Pal, Karan Jain, S. Maka","doi":"10.1109/TECHSYM.2014.6807912","DOIUrl":"https://doi.org/10.1109/TECHSYM.2014.6807912","url":null,"abstract":"Chemical Regulation of Human Respiratory System is a complex dynamical system. Primary function of this system is to regulate gas concentrations in the Blood. It is modeled by Nonlinear Delay Differential Equations. Several dynamical models for respiratory regulation are available in the literature, which are broadly classified as Comprehensive and Minimal Models. Minimal models are derived from the comprehensive models with some assumptions and are linearized for simplified analysis. Current literatures in these mathematical modeling approaches are directed towards describing pathological conditions, giving little thrust for the prediction. Analyses of these systems are not straightforward because of the variable time delay. From the system's point of view, increasing delay makes the system oscillatory. Physiologically, delay depends on the blood flow. In this model, delay in feedback loop of alveolar oxygen and carbon dioxide partial pressures make the system oscillatory, causing discomfort or fatal to the subject. Present analysis is motivated to find out the range of delay for comfortable operation of the system.","PeriodicalId":265072,"journal":{"name":"Proceedings of the 2014 IEEE Students' Technology Symposium","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121534462","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 : 2014-05-01DOI: 10.1109/TECHSYM.2014.6808061
V. K. Sreekanth, Dhrubes Biswas
The huge expenses for healthcare by the larger section of the population in India have made it economically crucial. The healthcare insurance is one of the cost-effective solutions to control the out-of-pocket expenditure in the sector. Nevertheless, the existing information asymmetries in the field of healthcare insurance bewilder the potential client in selecting the right policy. They are more dependent on the business agents for information and the chances of being exploited become high due to the imbalance in the information. This paper proposes an information system that makes use of semantic Web techniques to minimize the information asymmetry in Indian healthcare insurance market. The emerging concepts of semantic data mining encourage the cooperative way of existence and reduced chances of exploitation of the client or patient.
{"title":"Information asymmetry minimization system for potential clients of healthcare insurance in Indian context using semantic web","authors":"V. K. Sreekanth, Dhrubes Biswas","doi":"10.1109/TECHSYM.2014.6808061","DOIUrl":"https://doi.org/10.1109/TECHSYM.2014.6808061","url":null,"abstract":"The huge expenses for healthcare by the larger section of the population in India have made it economically crucial. The healthcare insurance is one of the cost-effective solutions to control the out-of-pocket expenditure in the sector. Nevertheless, the existing information asymmetries in the field of healthcare insurance bewilder the potential client in selecting the right policy. They are more dependent on the business agents for information and the chances of being exploited become high due to the imbalance in the information. This paper proposes an information system that makes use of semantic Web techniques to minimize the information asymmetry in Indian healthcare insurance market. The emerging concepts of semantic data mining encourage the cooperative way of existence and reduced chances of exploitation of the client or patient.","PeriodicalId":265072,"journal":{"name":"Proceedings of the 2014 IEEE Students' Technology Symposium","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126872526","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 : 2014-05-01DOI: 10.1109/TECHSYM.2014.6807933
Soumya Bose, P. Mandal
The paper illustrates design of a fully differential amplifier to sense current signals generated by CMUT for ultrasound imaging. Detection of reflected ultrasonic waves from body tissues requires low noise amplifier with wide input dynamic range. The transducer, being capacitive, isolates dc voltage from the input of the amplifier necessitating additional biasing circuit. In this work, a differential amplifier topology is chosen for its ability to reject common mode interference. Biasing is done by low frequency feedback using CMOS transistors which do not add significant noise to the system. The amplifier is designed in 0.18 μm CMOS process. Its input referred noise is 24.3 μV rms in the band 1-15 MHz. At 10 MHz it provides a gain of 25.5 dB with an input dynamic range of 62.5 dB. The amplifier consumes 314 μW of power with 1.8V-GND supply.
{"title":"A fully differential amplifier with CMOS feedback biasing for sensing CMUT signals","authors":"Soumya Bose, P. Mandal","doi":"10.1109/TECHSYM.2014.6807933","DOIUrl":"https://doi.org/10.1109/TECHSYM.2014.6807933","url":null,"abstract":"The paper illustrates design of a fully differential amplifier to sense current signals generated by CMUT for ultrasound imaging. Detection of reflected ultrasonic waves from body tissues requires low noise amplifier with wide input dynamic range. The transducer, being capacitive, isolates dc voltage from the input of the amplifier necessitating additional biasing circuit. In this work, a differential amplifier topology is chosen for its ability to reject common mode interference. Biasing is done by low frequency feedback using CMOS transistors which do not add significant noise to the system. The amplifier is designed in 0.18 μm CMOS process. Its input referred noise is 24.3 μV rms in the band 1-15 MHz. At 10 MHz it provides a gain of 25.5 dB with an input dynamic range of 62.5 dB. The amplifier consumes 314 μW of power with 1.8V-GND supply.","PeriodicalId":265072,"journal":{"name":"Proceedings of the 2014 IEEE Students' Technology Symposium","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132806692","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 : 2014-05-01DOI: 10.1109/TECHSYM.2014.6807926
P. Chanak, I. Banerjee
Uniform load distribution is a major challenging area in wireless sensor networks. Sink mobility strategy achieves great success in uniform load distribution policy. In optimal sink mobility scheme, main problem is optimal path construction for sink movement with minimum message overhead. This paper reports an optimal path construction strategy for mobile sinks movement in wireless sensor network. Proposed sink mobility scheme increases network throughput as well as conserves energy by optimal path construction. The proposed scheme divides whole network into sub regions, and they are coupled with quad tree. Mobile sink collects data region wise. The quad-tree based sink mobility scheme reduces energy consumption rate through uniform load distribution. The experimental results verify the effectiveness and feasibility of the proposed work.
{"title":"Load reduction with multiple mobile sinks in wireless sensor networks","authors":"P. Chanak, I. Banerjee","doi":"10.1109/TECHSYM.2014.6807926","DOIUrl":"https://doi.org/10.1109/TECHSYM.2014.6807926","url":null,"abstract":"Uniform load distribution is a major challenging area in wireless sensor networks. Sink mobility strategy achieves great success in uniform load distribution policy. In optimal sink mobility scheme, main problem is optimal path construction for sink movement with minimum message overhead. This paper reports an optimal path construction strategy for mobile sinks movement in wireless sensor network. Proposed sink mobility scheme increases network throughput as well as conserves energy by optimal path construction. The proposed scheme divides whole network into sub regions, and they are coupled with quad tree. Mobile sink collects data region wise. The quad-tree based sink mobility scheme reduces energy consumption rate through uniform load distribution. The experimental results verify the effectiveness and feasibility of the proposed work.","PeriodicalId":265072,"journal":{"name":"Proceedings of the 2014 IEEE Students' Technology Symposium","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133343008","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 : 2014-05-01DOI: 10.1109/TECHSYM.2014.6808085
Anuradha Ravi, S. K. Peddoju
Mobile devices of today offload their compute intensive application to Cloud, but also consume huge energy while communicating using mobile network services like 3G/4G. Cloudlets can be used to provide such services with wireless LANs. However, the device mobility is limited to that network. Hence, Mobile Cloud Computing leaves two serious challenges, mobility and energy efficiency. This paper proposes a model to tackle the issues in new direction. In order to support mobility of the device, various parameters like signal strength, bit rate, number of interactions between Cloudlet and mobile device are measured to evaluate the handoff conditions. Further, various decisions are made based on two factors, offload factor and risk factor, to optimize the energy usage. Fuzzy based approach is used for offloading decisions. The proposed model and algorithm were evaluated using “opennebula” based Cloud setup and related experimental results were reported.
{"title":"Mobility managed energy efficient Android mobile devices using cloudlet","authors":"Anuradha Ravi, S. K. Peddoju","doi":"10.1109/TECHSYM.2014.6808085","DOIUrl":"https://doi.org/10.1109/TECHSYM.2014.6808085","url":null,"abstract":"Mobile devices of today offload their compute intensive application to Cloud, but also consume huge energy while communicating using mobile network services like 3G/4G. Cloudlets can be used to provide such services with wireless LANs. However, the device mobility is limited to that network. Hence, Mobile Cloud Computing leaves two serious challenges, mobility and energy efficiency. This paper proposes a model to tackle the issues in new direction. In order to support mobility of the device, various parameters like signal strength, bit rate, number of interactions between Cloudlet and mobile device are measured to evaluate the handoff conditions. Further, various decisions are made based on two factors, offload factor and risk factor, to optimize the energy usage. Fuzzy based approach is used for offloading decisions. The proposed model and algorithm were evaluated using “opennebula” based Cloud setup and related experimental results were reported.","PeriodicalId":265072,"journal":{"name":"Proceedings of the 2014 IEEE Students' Technology Symposium","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133614667","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 : 2014-05-01DOI: 10.1109/TECHSYM.2014.6808051
Y. Harish, R. K. Kumar, G. M. D. I. Feroz, C. Jada, V. A. Kumar, Mounika Mesa
This paper presents ROBOG; an experimental effort in building an autonomous robot that can learn the navigation system of a known terrain and use it for guiding. It is equipped with Artificial Neural Network for the task of Decision making. ROBOG was trained to learn the geographical structure of a floor in an academic block of RGUKT and is tested successfully to guide a person from anywhere to any specific classroom in the trained region. The training of ANN is done with Error Back Propagation algorithm and Particle Swarm Optimization. Results are provided showing the superiority of PSO over conventional EBP in training the ANN. It can easily be trained for other type of structures as well. Some outlook of future work and extensions are suggested.
{"title":"ROBOG: Robo guide with simple learning strategy","authors":"Y. Harish, R. K. Kumar, G. M. D. I. Feroz, C. Jada, V. A. Kumar, Mounika Mesa","doi":"10.1109/TECHSYM.2014.6808051","DOIUrl":"https://doi.org/10.1109/TECHSYM.2014.6808051","url":null,"abstract":"This paper presents ROBOG; an experimental effort in building an autonomous robot that can learn the navigation system of a known terrain and use it for guiding. It is equipped with Artificial Neural Network for the task of Decision making. ROBOG was trained to learn the geographical structure of a floor in an academic block of RGUKT and is tested successfully to guide a person from anywhere to any specific classroom in the trained region. The training of ANN is done with Error Back Propagation algorithm and Particle Swarm Optimization. Results are provided showing the superiority of PSO over conventional EBP in training the ANN. It can easily be trained for other type of structures as well. Some outlook of future work and extensions are suggested.","PeriodicalId":265072,"journal":{"name":"Proceedings of the 2014 IEEE Students' Technology Symposium","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133907238","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 : 2014-05-01DOI: 10.1109/TECHSYM.2014.6807909
D. Jose, P. Kumar, S. Ramkumar
The very high levels of integration and submicron device sizes used in emerging VLSI systems and FPGAs lead to frequent occurrences of defects and operational faults. Thus, the need for fault tolerance and reliability of deployed systems becomes increasingly prominent. This paper discusses fault tolerance and reliability observed in the design of a parallel self-healing VLSI system, based on partial dynamic reconfiguration (PDR) and built-in-self-test (BIST) for delay/stuck-at faults. PDR is employed to keep the system on line while under repair, for reduced power consumption and also to reduce repair time. Results prove that, a self-healing FFT prototype system implemented on Virtex6 FPGA can tolerate stressful sequences of injected delay and permanent faults with nominal impact on the system performance (hardware overhead and delay). The review of research proves that the proposed system is ideal for VLSI implementations of low power application fault tolerant systems.
{"title":"Reliability aware self-healing FFT system employing partial reconfiguration for reduced power consumption","authors":"D. Jose, P. Kumar, S. Ramkumar","doi":"10.1109/TECHSYM.2014.6807909","DOIUrl":"https://doi.org/10.1109/TECHSYM.2014.6807909","url":null,"abstract":"The very high levels of integration and submicron device sizes used in emerging VLSI systems and FPGAs lead to frequent occurrences of defects and operational faults. Thus, the need for fault tolerance and reliability of deployed systems becomes increasingly prominent. This paper discusses fault tolerance and reliability observed in the design of a parallel self-healing VLSI system, based on partial dynamic reconfiguration (PDR) and built-in-self-test (BIST) for delay/stuck-at faults. PDR is employed to keep the system on line while under repair, for reduced power consumption and also to reduce repair time. Results prove that, a self-healing FFT prototype system implemented on Virtex6 FPGA can tolerate stressful sequences of injected delay and permanent faults with nominal impact on the system performance (hardware overhead and delay). The review of research proves that the proposed system is ideal for VLSI implementations of low power application fault tolerant systems.","PeriodicalId":265072,"journal":{"name":"Proceedings of the 2014 IEEE Students' Technology Symposium","volume":"6 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131809855","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 : 2014-05-01DOI: 10.1109/TECHSYM.2014.6808044
Pubali Paul, C. Dey, R. Mudi
An online dynamic set point weighting technique is proposed for PID controller. The set point weighting factor is calculated online according to the process change of error through a simple sigmoid function. Weighted set point for each sampling instant is applied only for proportional term of the PID controller. The proposed dynamic set point weighted PID controller provides a significant amount of performance enhancement for higher order processes with dead time. Its superiority has been verified through simulation study as well as real time implementation. Unlike the conventional fixed set point weighting which provides only improved set point response, our proposed technique is capable to provide simultaneous improvement during both the set point tracking as well as load variation with considerable robustness in close-loop behavior.
{"title":"An online dynamic set point weighting scheme for PID controller","authors":"Pubali Paul, C. Dey, R. Mudi","doi":"10.1109/TECHSYM.2014.6808044","DOIUrl":"https://doi.org/10.1109/TECHSYM.2014.6808044","url":null,"abstract":"An online dynamic set point weighting technique is proposed for PID controller. The set point weighting factor is calculated online according to the process change of error through a simple sigmoid function. Weighted set point for each sampling instant is applied only for proportional term of the PID controller. The proposed dynamic set point weighted PID controller provides a significant amount of performance enhancement for higher order processes with dead time. Its superiority has been verified through simulation study as well as real time implementation. Unlike the conventional fixed set point weighting which provides only improved set point response, our proposed technique is capable to provide simultaneous improvement during both the set point tracking as well as load variation with considerable robustness in close-loop behavior.","PeriodicalId":265072,"journal":{"name":"Proceedings of the 2014 IEEE Students' Technology Symposium","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133472948","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 : 2014-05-01DOI: 10.1109/TECHSYM.2014.6808045
P. Sahu, S. Maity
Maintaining good voltage regulation and achieving fast dynamic response under sudden load fluctuation are extremely important in distributed generation (DG) as well as uninterrupted power supply (UPS) systems. This paper presents a fixed frequency hysteresis current (FFHC) controller, which is implemented on the basis of sliding mode control (SMC) technique and fixed frequency current controller with a hysteresis band. The controller retains the benefit of hysteretic current control having fast dynamic responses and mitigates the drawback of the variable switching frequency. These have been verified and compared with the carrier based pulse width modulated (PWM) voltage controller under the same load fluctuation. The proposed method is then applied to 6-KVA, 220V, 50Hz islanded 1-Φ voltage source inverter (VSI) system. The results show that the dynamic response is quite faster than that of widely used PWM-controlled inverter systems. Moreover, the total harmonic distortion (THD) of inverter output voltage is 2.14% at standard nonlinear load IEC62040-3.
{"title":"Dynamic performance enhancement of voltage source inverter by constant-frequency hysteretic current controller","authors":"P. Sahu, S. Maity","doi":"10.1109/TECHSYM.2014.6808045","DOIUrl":"https://doi.org/10.1109/TECHSYM.2014.6808045","url":null,"abstract":"Maintaining good voltage regulation and achieving fast dynamic response under sudden load fluctuation are extremely important in distributed generation (DG) as well as uninterrupted power supply (UPS) systems. This paper presents a fixed frequency hysteresis current (FFHC) controller, which is implemented on the basis of sliding mode control (SMC) technique and fixed frequency current controller with a hysteresis band. The controller retains the benefit of hysteretic current control having fast dynamic responses and mitigates the drawback of the variable switching frequency. These have been verified and compared with the carrier based pulse width modulated (PWM) voltage controller under the same load fluctuation. The proposed method is then applied to 6-KVA, 220V, 50Hz islanded 1-Φ voltage source inverter (VSI) system. The results show that the dynamic response is quite faster than that of widely used PWM-controlled inverter systems. Moreover, the total harmonic distortion (THD) of inverter output voltage is 2.14% at standard nonlinear load IEC62040-3.","PeriodicalId":265072,"journal":{"name":"Proceedings of the 2014 IEEE Students' Technology Symposium","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123417088","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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