Pub Date : 2016-11-01DOI: 10.1109/POWERI.2016.8077189
T. Halder
A flyback topology selection criteria of the power converter plays an important responsibility for the industrial and consumer products inviting suitable applications. Furthermore, it evaluations, modes of operations, parts count, reliability, failure rate, power density , compactness and cost are always attractive issues to meet the selection criteria as cost effective solutions . The circuit efficiency, least profile, safety, duty ratio, power level and preference of the active and passive components strengthen the competency of the topologies selection criteria adopting for the degree of difference applications. The flyback topology is selected here as the best, simplest isolated and least parts count topology as industrial applications.
{"title":"A topology selection: An isolated flyback converter","authors":"T. Halder","doi":"10.1109/POWERI.2016.8077189","DOIUrl":"https://doi.org/10.1109/POWERI.2016.8077189","url":null,"abstract":"A flyback topology selection criteria of the power converter plays an important responsibility for the industrial and consumer products inviting suitable applications. Furthermore, it evaluations, modes of operations, parts count, reliability, failure rate, power density , compactness and cost are always attractive issues to meet the selection criteria as cost effective solutions . The circuit efficiency, least profile, safety, duty ratio, power level and preference of the active and passive components strengthen the competency of the topologies selection criteria adopting for the degree of difference applications. The flyback topology is selected here as the best, simplest isolated and least parts count topology as industrial applications.","PeriodicalId":332286,"journal":{"name":"2016 IEEE 7th Power India International Conference (PIICON)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127721399","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 : 2016-11-01DOI: 10.1109/POWERI.2016.8077240
Shitikantha Dash, D. Dash
Additional digital layer is an important aspect in the Smart grid architecture. We gather the data using this layer and the whole grid is controlled accordingly. Energy cost can be estimated and the demand can be predicted. Estimation of health issues of electrical equipment can be done from the control room by gathering the data from remote locations. In the case of computer-aided digital relay model if we choose the pilot relay action by remote data then that would be the good application of this digital layer. In this paper, we have suggested an alternative method- to gather and analyze the remote data using the serverless cloud computing framework. The prime objective is to design a cheaper and technically easier simulation strategy with this new framework. At the end, we have tried to create a mathematical model to estimate the cost and quality of service. The system is simulated using MATLAB, Amazon Web Service (AWS) products and a batch program.
附加数字层是智能电网体系结构中的一个重要方面。我们使用这一层收集数据，并相应地控制整个网格。能源成本可以估算，需求可以预测。对电气设备健康问题的估计可以在控制室通过收集远程位置的数据来完成。在计算机辅助数字继电器模型中，通过远程数据选择导频继电器动作，是该数字层的良好应用。在本文中，我们提出了一种替代方法-使用无服务器云计算框架收集和分析远程数据。主要目标是用这个新框架设计一个更便宜、技术上更容易的仿真策略。最后，我们试图建立一个数学模型来估计服务的成本和质量。利用MATLAB、Amazon Web Service (AWS)产品和批处理程序对系统进行了仿真。
{"title":"Serverless cloud computing framework for smart grid architecture","authors":"Shitikantha Dash, D. Dash","doi":"10.1109/POWERI.2016.8077240","DOIUrl":"https://doi.org/10.1109/POWERI.2016.8077240","url":null,"abstract":"Additional digital layer is an important aspect in the Smart grid architecture. We gather the data using this layer and the whole grid is controlled accordingly. Energy cost can be estimated and the demand can be predicted. Estimation of health issues of electrical equipment can be done from the control room by gathering the data from remote locations. In the case of computer-aided digital relay model if we choose the pilot relay action by remote data then that would be the good application of this digital layer. In this paper, we have suggested an alternative method- to gather and analyze the remote data using the serverless cloud computing framework. The prime objective is to design a cheaper and technically easier simulation strategy with this new framework. At the end, we have tried to create a mathematical model to estimate the cost and quality of service. The system is simulated using MATLAB, Amazon Web Service (AWS) products and a batch program.","PeriodicalId":332286,"journal":{"name":"2016 IEEE 7th Power India International Conference (PIICON)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128060195","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 : 2016-11-01DOI: 10.1109/POWERI.2016.8077218
Nidhi Mishra, Bhim Singh
Thispaper represents solar photovoltaic (PV) array fed to cascaded H-bridge seven level converter system where maximum power point tracking (MPPT) is achieved bythe perturb and observe (P&O) control algorithm. To realize good feasibility and utilization of PV modules and to maximize the solar energy extraction, the viable control and modulation are instigated. Here, the control is realized using the modulation compensation by the use of phase disposition pulse width modulation (PDPWM)technique. The design is carried out for a 5 kW system and the performance is studied in steady state and dynamic conditions. Simulations are madeby using MATLAB/Simulink and the performance is validated under IEEE-519 standard.
{"title":"Solar PV based single stage cascaded seven level converter for grid interfaced systems","authors":"Nidhi Mishra, Bhim Singh","doi":"10.1109/POWERI.2016.8077218","DOIUrl":"https://doi.org/10.1109/POWERI.2016.8077218","url":null,"abstract":"Thispaper represents solar photovoltaic (PV) array fed to cascaded H-bridge seven level converter system where maximum power point tracking (MPPT) is achieved bythe perturb and observe (P&O) control algorithm. To realize good feasibility and utilization of PV modules and to maximize the solar energy extraction, the viable control and modulation are instigated. Here, the control is realized using the modulation compensation by the use of phase disposition pulse width modulation (PDPWM)technique. The design is carried out for a 5 kW system and the performance is studied in steady state and dynamic conditions. Simulations are madeby using MATLAB/Simulink and the performance is validated under IEEE-519 standard.","PeriodicalId":332286,"journal":{"name":"2016 IEEE 7th Power India International Conference (PIICON)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132828431","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 : 2016-11-01DOI: 10.1109/POWERI.2016.8077262
Manohar Singh
Bidirectional flow of power in power network imposes a serious threat on the reliable operation of overcurrent relays. Coordination of overcurrent relays is a challenging problem in multi-feed and heavily meshed power network. Complexity of problem increases as the size of system increases. Recently artificial intelligence based optimization techniques are applied successfully for optimizing the relay settings. Traditionally overcurrent relays are electro-mechanical in nature with discrete time dial and plug setting. Optimization of relay coordination problem considering electro-mechanical based over current relays requires an optimization algorithm which can handle the discrete types of variables. In this paper application of CMA-ES optimization algorithm is extended for coordination of overcurrent relays. Relay coordination problem is modified to optimize the relay setting for both near and far end faults. In addition to minimization of total operating time of primary and backup relays, coordination time margin is also optimized between 0.3 to 1.0 second for reliable operation of backup relays. The performance of proposed CMA-ES optimization algorithm is compared with other well established artificial intelligence bases optimization algorithms
{"title":"Coordination of electro-mechanical based overcurrent relays using CMA-ES algorithm","authors":"Manohar Singh","doi":"10.1109/POWERI.2016.8077262","DOIUrl":"https://doi.org/10.1109/POWERI.2016.8077262","url":null,"abstract":"Bidirectional flow of power in power network imposes a serious threat on the reliable operation of overcurrent relays. Coordination of overcurrent relays is a challenging problem in multi-feed and heavily meshed power network. Complexity of problem increases as the size of system increases. Recently artificial intelligence based optimization techniques are applied successfully for optimizing the relay settings. Traditionally overcurrent relays are electro-mechanical in nature with discrete time dial and plug setting. Optimization of relay coordination problem considering electro-mechanical based over current relays requires an optimization algorithm which can handle the discrete types of variables. In this paper application of CMA-ES optimization algorithm is extended for coordination of overcurrent relays. Relay coordination problem is modified to optimize the relay setting for both near and far end faults. In addition to minimization of total operating time of primary and backup relays, coordination time margin is also optimized between 0.3 to 1.0 second for reliable operation of backup relays. The performance of proposed CMA-ES optimization algorithm is compared with other well established artificial intelligence bases optimization algorithms","PeriodicalId":332286,"journal":{"name":"2016 IEEE 7th Power India International Conference (PIICON)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133992093","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 : 2016-11-01DOI: 10.1109/POWERI.2016.8077333
Swati Devabhaktuni, H. S. Jain, Pramod Kumar Vujjini
Current Limiting Reactors (CLR) connected in series with the transmission line, limit system short circuit currents on occurrence of a fault. Cost and size of these current limiting reactors is conventionally attributed to the system specified peak short circuit current and the inductance, as peak short circuit current and the duration of short circuit are the basis for size of the conductor. The conventional designs overlook the fact that peak current flowing through CLR is not constant but changes with the instant of short circuit. The short circuit currents also differ substantially from one short circuit to other. This variation in peak short circuit current, spread over from minimum to maximum, is statistically studied and generalized using PSCAD simulation in this work, for a standard power system (40kA) to study the scatter, highest amplitude and frequency of occurrence. Number of experiments has been conducted utilizing randomly selected short circuit events and for various sample sizes. Authors have co-related results and defined optimal experiments for acceptable prediction accuracy. The work is extended further to develop an empirical relation defining the change. The authors claim that substantial reduction in cost and size of CLR is possible considering statistical rating of CLRs against conventional.
{"title":"Statistically generalized rating for CLR in power transmission systems","authors":"Swati Devabhaktuni, H. S. Jain, Pramod Kumar Vujjini","doi":"10.1109/POWERI.2016.8077333","DOIUrl":"https://doi.org/10.1109/POWERI.2016.8077333","url":null,"abstract":"Current Limiting Reactors (CLR) connected in series with the transmission line, limit system short circuit currents on occurrence of a fault. Cost and size of these current limiting reactors is conventionally attributed to the system specified peak short circuit current and the inductance, as peak short circuit current and the duration of short circuit are the basis for size of the conductor. The conventional designs overlook the fact that peak current flowing through CLR is not constant but changes with the instant of short circuit. The short circuit currents also differ substantially from one short circuit to other. This variation in peak short circuit current, spread over from minimum to maximum, is statistically studied and generalized using PSCAD simulation in this work, for a standard power system (40kA) to study the scatter, highest amplitude and frequency of occurrence. Number of experiments has been conducted utilizing randomly selected short circuit events and for various sample sizes. Authors have co-related results and defined optimal experiments for acceptable prediction accuracy. The work is extended further to develop an empirical relation defining the change. The authors claim that substantial reduction in cost and size of CLR is possible considering statistical rating of CLRs against conventional.","PeriodicalId":332286,"journal":{"name":"2016 IEEE 7th Power India International Conference (PIICON)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133106964","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 : 2016-11-01DOI: 10.1109/POWERI.2016.8077369
M. Rajeev, V. Agarwal
A single-phase, single-stage current source inverter (CSI) suitable for transformer-less grid-PV interface is proposed in this paper. A split capacitor arrangement and a common mode choke are used to modify the conventional CSI structure, to reduce the leakage current. Higher reliability and voltage boosting capability of the CSI are the main advantages compared to the voltage source inverter (VSI). A cost effective and computationally less intensive control method based on the sinusoidal pulse width modulation (SPWM) technique is suggested to improve the quality of the grid current. Design and analysis of the proposed CSI structure and the modified control technique is discussed in detail. Reduced leakage current and high quality injected grid current, with a relatively low value of inductor is obtained with the suggested modification. Simulation results validate the effectiveness of the proposed CSI with the proposed modification in the SPWM technique.
{"title":"Current source inverter with reduced leakage current for transformer-less Grid -PV interface","authors":"M. Rajeev, V. Agarwal","doi":"10.1109/POWERI.2016.8077369","DOIUrl":"https://doi.org/10.1109/POWERI.2016.8077369","url":null,"abstract":"A single-phase, single-stage current source inverter (CSI) suitable for transformer-less grid-PV interface is proposed in this paper. A split capacitor arrangement and a common mode choke are used to modify the conventional CSI structure, to reduce the leakage current. Higher reliability and voltage boosting capability of the CSI are the main advantages compared to the voltage source inverter (VSI). A cost effective and computationally less intensive control method based on the sinusoidal pulse width modulation (SPWM) technique is suggested to improve the quality of the grid current. Design and analysis of the proposed CSI structure and the modified control technique is discussed in detail. Reduced leakage current and high quality injected grid current, with a relatively low value of inductor is obtained with the suggested modification. Simulation results validate the effectiveness of the proposed CSI with the proposed modification in the SPWM technique.","PeriodicalId":332286,"journal":{"name":"2016 IEEE 7th Power India International Conference (PIICON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130301021","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 : 2016-11-01DOI: 10.1109/POWERI.2016.8077187
Mehul Saxena, R. Pachauri, Y. Chauhan
This paper presents a modeling approach for analysis of Torque, Current and Voltage characteristics. Distributed Generation systems are becoming more popular everyday due to its greater efficiency and eco-friendly behavior. Another advantage of DG System is that it can operate independently or can be connected to a Grid system. In this paper a microturbine based DG System is created using MATLAB and the output is thus connected to the Permanent Magnet Synchronous Generator (PMSG) and the characteristics for Stator Current, Electromagnetic Torque and Rotor Speed are plotted down. Furthermore, the Voltage and Current is also measured across an isolated Resistive Load.
{"title":"Torque control of microturbine based distributed generation system","authors":"Mehul Saxena, R. Pachauri, Y. Chauhan","doi":"10.1109/POWERI.2016.8077187","DOIUrl":"https://doi.org/10.1109/POWERI.2016.8077187","url":null,"abstract":"This paper presents a modeling approach for analysis of Torque, Current and Voltage characteristics. Distributed Generation systems are becoming more popular everyday due to its greater efficiency and eco-friendly behavior. Another advantage of DG System is that it can operate independently or can be connected to a Grid system. In this paper a microturbine based DG System is created using MATLAB and the output is thus connected to the Permanent Magnet Synchronous Generator (PMSG) and the characteristics for Stator Current, Electromagnetic Torque and Rotor Speed are plotted down. Furthermore, the Voltage and Current is also measured across an isolated Resistive Load.","PeriodicalId":332286,"journal":{"name":"2016 IEEE 7th Power India International Conference (PIICON)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115361004","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 : 2016-11-01DOI: 10.1109/POWERI.2016.8077353
Uma Syamkumar, B. Jayanand
In this paper, a single- stage smoothing filter algorithm is used for the speed- sensorless field-oriented control of induction motors and is verified experimentally. A fifth-order model of the induction machine (IM) is used for the estimation of rotor currents and speed. The uncertainties in measurement and model are accounted for. The experiment is carried out on a closed loop field- oriented system. An estimate of the state variables in the next instant is made, using the conventional extended Kalman filter (EKF). This estimate is used to smoothen the estimate of the previous instant. This refinement is found to improve the estimates of the previous and next instantces, since an additional data point is made use of. Using the measured stator phase voltages and currents, speed is estimated. The results are compared with those with the Extended Kalman Filter. The algorithm is found to make improvement in the transient part of response of the system. The performance of the system for different reference speeds is also analyzed. It is observed that the transient performance is improved and estimation remains good for a range of values of process and measurement error covariances.
{"title":"A single stage smoothing filter for the speed estimation of three phase induction motor","authors":"Uma Syamkumar, B. Jayanand","doi":"10.1109/POWERI.2016.8077353","DOIUrl":"https://doi.org/10.1109/POWERI.2016.8077353","url":null,"abstract":"In this paper, a single- stage smoothing filter algorithm is used for the speed- sensorless field-oriented control of induction motors and is verified experimentally. A fifth-order model of the induction machine (IM) is used for the estimation of rotor currents and speed. The uncertainties in measurement and model are accounted for. The experiment is carried out on a closed loop field- oriented system. An estimate of the state variables in the next instant is made, using the conventional extended Kalman filter (EKF). This estimate is used to smoothen the estimate of the previous instant. This refinement is found to improve the estimates of the previous and next instantces, since an additional data point is made use of. Using the measured stator phase voltages and currents, speed is estimated. The results are compared with those with the Extended Kalman Filter. The algorithm is found to make improvement in the transient part of response of the system. The performance of the system for different reference speeds is also analyzed. It is observed that the transient performance is improved and estimation remains good for a range of values of process and measurement error covariances.","PeriodicalId":332286,"journal":{"name":"2016 IEEE 7th Power India International Conference (PIICON)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114696929","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 : 2016-11-01DOI: 10.1109/POWERI.2016.8077338
J. S. Reddy, A. Chakraborti, B. Das
This paper mainly focuses on an automatic solar tracking system to maximize the utilization of solar energy and improves the energy conversion efficiency of the photovoltaic (PV) system. It is a closed loop sun positioning mechanism relative to the earth and makes the uniform distribution of solar radiation over an area of the PV panel. The incorporated tracking system is sufficiently devised for two degrees of freedom, being sun's Zenith or Elevation and Azimuthal angles, are covering the four principal directions. A photo sensor platform is designed and used for finding the accurate position of the sun and monitoring the weather conditions. It uses two stepper motors for driving the azimuthal and zenith positions of the sun and independently controlled each. The prototype model is designed in such way that it will provide an automatic braking against windstorm or gusts.
{"title":"Implementation and practical evaluation of an automatic solar tracking system for different weather conditions","authors":"J. S. Reddy, A. Chakraborti, B. Das","doi":"10.1109/POWERI.2016.8077338","DOIUrl":"https://doi.org/10.1109/POWERI.2016.8077338","url":null,"abstract":"This paper mainly focuses on an automatic solar tracking system to maximize the utilization of solar energy and improves the energy conversion efficiency of the photovoltaic (PV) system. It is a closed loop sun positioning mechanism relative to the earth and makes the uniform distribution of solar radiation over an area of the PV panel. The incorporated tracking system is sufficiently devised for two degrees of freedom, being sun's Zenith or Elevation and Azimuthal angles, are covering the four principal directions. A photo sensor platform is designed and used for finding the accurate position of the sun and monitoring the weather conditions. It uses two stepper motors for driving the azimuthal and zenith positions of the sun and independently controlled each. The prototype model is designed in such way that it will provide an automatic braking against windstorm or gusts.","PeriodicalId":332286,"journal":{"name":"2016 IEEE 7th Power India International Conference (PIICON)","volume":"165 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115272244","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 : 2016-11-01DOI: 10.1109/POWERI.2016.8077394
B. Sharma, Jayaram Nakka
Solar Photovoltaic power generation systems are progressively widespread with the rise in the energy demand, to reduce consumption of fossil fuels and the concern for the environmental pollution around the world. Also multilevel inverters have gained additional attention within the field of energy distribution and control due to its various advantages in high-power medium-voltage applications with low harmonics. This paper proposed an improved Hybrid Level and Phase-Shifted Sinusoidal Pulse Width Modulation (HLP-SPWM) technique for a modular 5-level Cascaded Flying Capacitor Half Bridge (CFCHB) Inverter topology that is employed for PV system connection for improving the power quality of the inverter output voltage, and increase in its power rating. This improved modular cascaded multilevel topology helps to improve the efficiency of PV systems. Also to meet better use of PV modules and maximize the solar energy extraction, a maximum power point tracking (MPPT) control scheme is applied. A performance comparison between 5-level CFCHB inverter with CHB inverter respective to harmonics content, voltage stress for the switches with photovoltaic cell as its input source is simulated by using MATLAB/Simulink.
{"title":"Cascaded flying capacitor half bridge inverter for power rating enhancement in PV based inverter system","authors":"B. Sharma, Jayaram Nakka","doi":"10.1109/POWERI.2016.8077394","DOIUrl":"https://doi.org/10.1109/POWERI.2016.8077394","url":null,"abstract":"Solar Photovoltaic power generation systems are progressively widespread with the rise in the energy demand, to reduce consumption of fossil fuels and the concern for the environmental pollution around the world. Also multilevel inverters have gained additional attention within the field of energy distribution and control due to its various advantages in high-power medium-voltage applications with low harmonics. This paper proposed an improved Hybrid Level and Phase-Shifted Sinusoidal Pulse Width Modulation (HLP-SPWM) technique for a modular 5-level Cascaded Flying Capacitor Half Bridge (CFCHB) Inverter topology that is employed for PV system connection for improving the power quality of the inverter output voltage, and increase in its power rating. This improved modular cascaded multilevel topology helps to improve the efficiency of PV systems. Also to meet better use of PV modules and maximize the solar energy extraction, a maximum power point tracking (MPPT) control scheme is applied. A performance comparison between 5-level CFCHB inverter with CHB inverter respective to harmonics content, voltage stress for the switches with photovoltaic cell as its input source is simulated by using MATLAB/Simulink.","PeriodicalId":332286,"journal":{"name":"2016 IEEE 7th Power India International Conference (PIICON)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123434981","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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