Pub Date : 2019-12-01DOI: 10.1109/PSC49016.2019.9081475
A. Raja, Aram Afkhamy Shirazpour, Mehrdad Peiman
Numerical simulation applications are extended significantly in 21th century. With respect to the improvement of computers hardware, capabilities to investigate on complicate models have become achievable. In this research a comprehensive 3D numerical simulation for combustion chamber of V94.2 SIEMENS Gas Turbine in full-scale considering the details in diffusion mode is performed. Concerning many problems reported form operation unit of power plants, a simulation is implemented to analyze the fluid flow and heat transfer and to offer further prescriptions to ameliorate the performance of combustion, uniformity of combustion in all eight burners and vibrations reduction that are originated from combustion process. Therefore after a precise simulation of fluid flow and combustion, diagnosing the ingredients of poor combustion is performed an executable modification in plenum is suggested. According to the results, modification on plenum has had considerable effect on uniformity of air flow distribution and as a consequence on maximum flame temperature of each burner. Uniformity of air flow and temperature distribution in combustion chamber and equality of equivalence ratio in each burner would have significant effect on pollution reduction. This project is performed with the cooperation of Kerman Power Plant and most of the data that are used for simulation are gathered from the operation unit and the results of simulation are validated. Also comprehensive boundary conditions are calculated using THERMOFLEX software in off-design operation condition. Regarding this issue the precision of simulation outcomes are confirmed and besides the exact value of the parameters, the simulation was able to accurately estimate the trend of exit temperature variation according to the variable operating conditions.
{"title":"Modification for Combustion Chamber of V94.2 SIEMENS Gas Turbine in Diffusion Mode","authors":"A. Raja, Aram Afkhamy Shirazpour, Mehrdad Peiman","doi":"10.1109/PSC49016.2019.9081475","DOIUrl":"https://doi.org/10.1109/PSC49016.2019.9081475","url":null,"abstract":"Numerical simulation applications are extended significantly in 21th century. With respect to the improvement of computers hardware, capabilities to investigate on complicate models have become achievable. In this research a comprehensive 3D numerical simulation for combustion chamber of V94.2 SIEMENS Gas Turbine in full-scale considering the details in diffusion mode is performed. Concerning many problems reported form operation unit of power plants, a simulation is implemented to analyze the fluid flow and heat transfer and to offer further prescriptions to ameliorate the performance of combustion, uniformity of combustion in all eight burners and vibrations reduction that are originated from combustion process. Therefore after a precise simulation of fluid flow and combustion, diagnosing the ingredients of poor combustion is performed an executable modification in plenum is suggested. According to the results, modification on plenum has had considerable effect on uniformity of air flow distribution and as a consequence on maximum flame temperature of each burner. Uniformity of air flow and temperature distribution in combustion chamber and equality of equivalence ratio in each burner would have significant effect on pollution reduction. This project is performed with the cooperation of Kerman Power Plant and most of the data that are used for simulation are gathered from the operation unit and the results of simulation are validated. Also comprehensive boundary conditions are calculated using THERMOFLEX software in off-design operation condition. Regarding this issue the precision of simulation outcomes are confirmed and besides the exact value of the parameters, the simulation was able to accurately estimate the trend of exit temperature variation according to the variable operating conditions.","PeriodicalId":359817,"journal":{"name":"2019 International Power System Conference (PSC)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116286904","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 : 2019-12-01DOI: 10.1109/PSC49016.2019.9081449
M. Amiri, A. Akmal
In this work, the effects of defective RTV coatings on insulating performance of porcelain insulators and their performance improvement according to the electric field conditions are investigated. For this purpose, first, two samples of porcelain insulators with the defective coatings in the marginal points of the electric field (points where the electric field is remarkable or very small) are investigated in the salt-fog chamber test, in accordance with the conditions of the dry band arcs (DBA). Then, electric field and the factors affecting its distribution are identified by finite element simulation. Also, in order to identify the mechanism of the occurrence of dry band arc, some tests were implemented on two porcelain samples, one with full coating and the other without any coating. The results show that when the RTV coating is damaged in areas where the intensity of the electric field is considerable, the occurrence of the DBAs is more likely than the other points.
{"title":"Effect of Defective RTV Coatings on Insulation Performance of Porcelain Insulators","authors":"M. Amiri, A. Akmal","doi":"10.1109/PSC49016.2019.9081449","DOIUrl":"https://doi.org/10.1109/PSC49016.2019.9081449","url":null,"abstract":"In this work, the effects of defective RTV coatings on insulating performance of porcelain insulators and their performance improvement according to the electric field conditions are investigated. For this purpose, first, two samples of porcelain insulators with the defective coatings in the marginal points of the electric field (points where the electric field is remarkable or very small) are investigated in the salt-fog chamber test, in accordance with the conditions of the dry band arcs (DBA). Then, electric field and the factors affecting its distribution are identified by finite element simulation. Also, in order to identify the mechanism of the occurrence of dry band arc, some tests were implemented on two porcelain samples, one with full coating and the other without any coating. The results show that when the RTV coating is damaged in areas where the intensity of the electric field is considerable, the occurrence of the DBAs is more likely than the other points.","PeriodicalId":359817,"journal":{"name":"2019 International Power System Conference (PSC)","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115936118","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 : 2019-12-01DOI: 10.1109/PSC49016.2019.9081520
M. Mohammadniaei, F. Namdari, M. Shakarami
In this paper a novel method called Vector Analysis (VA), using a new instability detection index is proposed to provide wide area voltage stability for the power systems. The index extraction process relies on measurements of active and reactive powers from connected buses to the generator bus. Moreover, as long as VA predicts voltage collapse, through disconnecting weak lines and based on network graph, zoning is carried out in the power system. For the aim of system observability, phasor measurement units (PMUs) placement, have also been optimized by Swarm Robotics Search & Rescue (SRSR) algorithm. Simulations have been carried out on IEEE 39- bus test system which demonstrates the accuracy of index distinction in voltage stability assessment and system zoning.
{"title":"Voltage Collapse Detection and Prevention Based on PMUs Measurement","authors":"M. Mohammadniaei, F. Namdari, M. Shakarami","doi":"10.1109/PSC49016.2019.9081520","DOIUrl":"https://doi.org/10.1109/PSC49016.2019.9081520","url":null,"abstract":"In this paper a novel method called Vector Analysis (VA), using a new instability detection index is proposed to provide wide area voltage stability for the power systems. The index extraction process relies on measurements of active and reactive powers from connected buses to the generator bus. Moreover, as long as VA predicts voltage collapse, through disconnecting weak lines and based on network graph, zoning is carried out in the power system. For the aim of system observability, phasor measurement units (PMUs) placement, have also been optimized by Swarm Robotics Search & Rescue (SRSR) algorithm. Simulations have been carried out on IEEE 39- bus test system which demonstrates the accuracy of index distinction in voltage stability assessment and system zoning.","PeriodicalId":359817,"journal":{"name":"2019 International Power System Conference (PSC)","volume":"432 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116010735","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 : 2019-12-01DOI: 10.1109/PSC49016.2019.9081546
S. Seyedalipour
A voltage source inverter (VSI) is a common solution in order to integrate distributed generation resources to utility grid. In this paper, by considering an $LCL$ filter at the output of the three-phase grid-connected VSI, the system model is attained in the natural frame. Then, according to the achieved model, a novel deadbeat control is suggested to supply sinusoidal currents for being injected to the utility grid. Moreover, the considered method does not need transforming the system equations from the abc frame to another. The performance and feasibility of the suggested deadbeat control is evaluated in balanced, unbalanced and distorted grid conditions. The computer simulation results obtained from MATLAB/Simulink show that the suggested control demonstrates a good operation in reaching rapid dynamic response, closely zero steady-state error, closed-loop system global stability and also sinusoidal utility grid current including low total harmonic distortion (THD).
{"title":"A Novel Deadbeat Control for Three-Phase Grid-Connected VSI with an Output LCL Filter in Natural Frame","authors":"S. Seyedalipour","doi":"10.1109/PSC49016.2019.9081546","DOIUrl":"https://doi.org/10.1109/PSC49016.2019.9081546","url":null,"abstract":"A voltage source inverter (VSI) is a common solution in order to integrate distributed generation resources to utility grid. In this paper, by considering an $LCL$ filter at the output of the three-phase grid-connected VSI, the system model is attained in the natural frame. Then, according to the achieved model, a novel deadbeat control is suggested to supply sinusoidal currents for being injected to the utility grid. Moreover, the considered method does not need transforming the system equations from the abc frame to another. The performance and feasibility of the suggested deadbeat control is evaluated in balanced, unbalanced and distorted grid conditions. The computer simulation results obtained from MATLAB/Simulink show that the suggested control demonstrates a good operation in reaching rapid dynamic response, closely zero steady-state error, closed-loop system global stability and also sinusoidal utility grid current including low total harmonic distortion (THD).","PeriodicalId":359817,"journal":{"name":"2019 International Power System Conference (PSC)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125620464","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 : 2019-12-01DOI: 10.1109/PSC49016.2019.9081529
Ali Zarein, A. Mosallanejad, M. Ghazizadeh
One of the most favored for grid connected photovoltaic (PV) generation system due to higher productivity and lower price is transformerless inverters. The two key clues for transformerless PV grid-connected inverter are Low leakage current and high productivity. Nonetheless, the leakage current which lessens the power quality and produces electro-magnetic interference in transformerless PV inverter, has to be addressed accurately in order to examine the safety regulations. This paper presents a multilevel transformerless single-phase inverter, which consists of one H-bridge, one bidirectional switch and one damper circuit to decrease the ground leakage current. The planned inverter configuration and the transformerless single-phase inverters are compared based on the power circuit component count. Furthermore, the power lossed in the power semiconductor switches of the presented and several existing topology is analyzed. Finally, proposed topology is simulated by MATLABI Simulink software to confirm the correctness of the theoretical analysis.
{"title":"An improved transformerless grid-connected photovoltaic inverter with reduced leakage current and increasing number of output voltage level","authors":"Ali Zarein, A. Mosallanejad, M. Ghazizadeh","doi":"10.1109/PSC49016.2019.9081529","DOIUrl":"https://doi.org/10.1109/PSC49016.2019.9081529","url":null,"abstract":"One of the most favored for grid connected photovoltaic (PV) generation system due to higher productivity and lower price is transformerless inverters. The two key clues for transformerless PV grid-connected inverter are Low leakage current and high productivity. Nonetheless, the leakage current which lessens the power quality and produces electro-magnetic interference in transformerless PV inverter, has to be addressed accurately in order to examine the safety regulations. This paper presents a multilevel transformerless single-phase inverter, which consists of one H-bridge, one bidirectional switch and one damper circuit to decrease the ground leakage current. The planned inverter configuration and the transformerless single-phase inverters are compared based on the power circuit component count. Furthermore, the power lossed in the power semiconductor switches of the presented and several existing topology is analyzed. Finally, proposed topology is simulated by MATLABI Simulink software to confirm the correctness of the theoretical analysis.","PeriodicalId":359817,"journal":{"name":"2019 International Power System Conference (PSC)","volume":"506 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134370154","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 : 2019-12-01DOI: 10.1109/PSC49016.2019.9081543
Mahsa Sajjadi, H. Seifi
Modeling and simulation are of great importance in power systems studies. In order to ensure the accuracy of the results, model validation is performed. This paper presents a new approach using the Particle Swarm Optimization (PSO) algorithm for governor parameter estimation and identification. To estimate unknown parameters, the system frequency and turbine power signals following several events are used. In the proposed method, to recognize the most effective parameters in each event, a sensitivity analysis technique is applied. Next, the most influential intervals that parameters have greater impact on system response are selected. The unknown parameters are then estimated using the selected time intervals. The proposed technique is tested on IEEE 9-bus test system using DIgSILENT power factory software. Studies' results demonstrate the efficiency of the proposed technique especially in reducing the computation burden and obtaining faster convergence.
{"title":"A new Approach for Parameter Estimation of Power System Equipment Models","authors":"Mahsa Sajjadi, H. Seifi","doi":"10.1109/PSC49016.2019.9081543","DOIUrl":"https://doi.org/10.1109/PSC49016.2019.9081543","url":null,"abstract":"Modeling and simulation are of great importance in power systems studies. In order to ensure the accuracy of the results, model validation is performed. This paper presents a new approach using the Particle Swarm Optimization (PSO) algorithm for governor parameter estimation and identification. To estimate unknown parameters, the system frequency and turbine power signals following several events are used. In the proposed method, to recognize the most effective parameters in each event, a sensitivity analysis technique is applied. Next, the most influential intervals that parameters have greater impact on system response are selected. The unknown parameters are then estimated using the selected time intervals. The proposed technique is tested on IEEE 9-bus test system using DIgSILENT power factory software. Studies' results demonstrate the efficiency of the proposed technique especially in reducing the computation burden and obtaining faster convergence.","PeriodicalId":359817,"journal":{"name":"2019 International Power System Conference (PSC)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123872535","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 : 2019-12-01DOI: 10.1109/PSC49016.2019.9081448
S. Rostami, V. Abbasi, Masoumeh Parastesh
This paper proposes a triple input DC-DC converter based on Z-source DC-DC converter for using in PV systems. The converter can be extended to multi-level converter with triple inputs. In comparison to the conventional Z-source converter, the proposed converter with single input converts voltage with higher voltage gain and lower voltage stresses on the switch and diodes that means improvement in efficiency. The converter can be used with different number of inputs as single, dual or triple. It is analyzed for the different source modes and compared to the conventional Z-source converter. A prototype for the proposed converter is prepared based on analysis and theoretical parts. Experiments are done along the lines of analysis for different modes and conditions. The experimental results prove the converter high efficiency operation in different conditions which considers it as an excellent choice for connecting PV systems to DC-links.
{"title":"Proposing a Triple Input and Multi-Level DC-DC Converter for Using in Renewable Energy Applications","authors":"S. Rostami, V. Abbasi, Masoumeh Parastesh","doi":"10.1109/PSC49016.2019.9081448","DOIUrl":"https://doi.org/10.1109/PSC49016.2019.9081448","url":null,"abstract":"This paper proposes a triple input DC-DC converter based on Z-source DC-DC converter for using in PV systems. The converter can be extended to multi-level converter with triple inputs. In comparison to the conventional Z-source converter, the proposed converter with single input converts voltage with higher voltage gain and lower voltage stresses on the switch and diodes that means improvement in efficiency. The converter can be used with different number of inputs as single, dual or triple. It is analyzed for the different source modes and compared to the conventional Z-source converter. A prototype for the proposed converter is prepared based on analysis and theoretical parts. Experiments are done along the lines of analysis for different modes and conditions. The experimental results prove the converter high efficiency operation in different conditions which considers it as an excellent choice for connecting PV systems to DC-links.","PeriodicalId":359817,"journal":{"name":"2019 International Power System Conference (PSC)","volume":"584 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123172248","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 : 2019-12-01DOI: 10.1109/PSC49016.2019.9081506
A. Mahdizadeh, E. Afjei
This paper presents a single-phase full bridge LLC resonant converter which utilizes parallel-series connected transformers. This converter can be used in onboard battery charger of electric vehicle. This circuit achieves zero turn on voltage switching (ZVS) of power switches as well as zero turn off current switching (ZCS) of rectifier diodes. In order to have a better heat dissipation, the large single transformer of conventional converter have been substituted with two equal transformers. Furthermore, a more compact structure is resulted. Additionally, parallel connection of transformers in the primary side reduces the turns of primary windings which leads to decrease the Joule loss of coils in high power applications. The principle of operation, steady state analysis and the design procedure of proposed converter have been described in detail. Finally, simulation results have been presented to verify the effectiveness of the proposed converter. The results show higher efficiency, lower output voltage ripple and better space utilization.
{"title":"LLC Resonant Converter Utilizing Parallel-Series Transformers Connection","authors":"A. Mahdizadeh, E. Afjei","doi":"10.1109/PSC49016.2019.9081506","DOIUrl":"https://doi.org/10.1109/PSC49016.2019.9081506","url":null,"abstract":"This paper presents a single-phase full bridge LLC resonant converter which utilizes parallel-series connected transformers. This converter can be used in onboard battery charger of electric vehicle. This circuit achieves zero turn on voltage switching (ZVS) of power switches as well as zero turn off current switching (ZCS) of rectifier diodes. In order to have a better heat dissipation, the large single transformer of conventional converter have been substituted with two equal transformers. Furthermore, a more compact structure is resulted. Additionally, parallel connection of transformers in the primary side reduces the turns of primary windings which leads to decrease the Joule loss of coils in high power applications. The principle of operation, steady state analysis and the design procedure of proposed converter have been described in detail. Finally, simulation results have been presented to verify the effectiveness of the proposed converter. The results show higher efficiency, lower output voltage ripple and better space utilization.","PeriodicalId":359817,"journal":{"name":"2019 International Power System Conference (PSC)","volume":"92 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121040249","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 : 2019-12-01DOI: 10.1109/PSC49016.2019.9081467
M. Goodarzi, Bita sadat Nouprvar, A. Safaei, Mohammad Mozaffari
Concerns about the environmental issues such as CO2 emissions and air pollution have initiated the injection of the electric vehicles (EVs) into the transportation sector. With the penetration of the EVs into the distribution system, a variety of problems will emerge. One of the important impacts of the EVs is on the protection system. The malfunction of the overcurrent relays' coordination is a crucial effect of the EVs. To improve coordination with the existence of EVs, a novel algorithm, based on the genetic algorithm (GA) is suggested for optimizing the relays' operating time. Then, the effect of the EVs' parking capacity is investigated on the relays' pickup and short circuit current, and the operating time.
{"title":"A Novel Algorithm for Improving the Overcurrent Relay Coordination with the consideration of EV Charging Station","authors":"M. Goodarzi, Bita sadat Nouprvar, A. Safaei, Mohammad Mozaffari","doi":"10.1109/PSC49016.2019.9081467","DOIUrl":"https://doi.org/10.1109/PSC49016.2019.9081467","url":null,"abstract":"Concerns about the environmental issues such as CO2 emissions and air pollution have initiated the injection of the electric vehicles (EVs) into the transportation sector. With the penetration of the EVs into the distribution system, a variety of problems will emerge. One of the important impacts of the EVs is on the protection system. The malfunction of the overcurrent relays' coordination is a crucial effect of the EVs. To improve coordination with the existence of EVs, a novel algorithm, based on the genetic algorithm (GA) is suggested for optimizing the relays' operating time. Then, the effect of the EVs' parking capacity is investigated on the relays' pickup and short circuit current, and the operating time.","PeriodicalId":359817,"journal":{"name":"2019 International Power System Conference (PSC)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128737277","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 : 2019-12-01DOI: 10.1109/PSC49016.2019.9081558
M. Karimi, Paria Kargar, K. Varesi
This paper proposes a new 11-level high step-up switched-capacitor based inverter topology. The suggested topology uses only one DC source and can produce a gain of 5. Also it can produce high ratios of steps per switches, gate driver circuits and DC sources, which leads to less devices, less volume, weight and expense. The Total Harmonic Distortion (THD) of produced voltage is low. So, the size of output filter can be reduced. Also, the suggested structure can be well applied on supplying low power factor $R-L$ loads. Natural voltage balancing of capacitors is another main merit of suggested structure that results in simple and easy control strategy. The suggested configuration has been introduced and its operational modes have been explained. Then it has been compared with novel similar topologies and simulated in MATLAB-SIMULINK. The comparison and simulation results confirm the appropriate features and proper operation of suggested configuration.
{"title":"A Novel High-Gain Switched-Capacitor Based 11-Level Inverter Topology","authors":"M. Karimi, Paria Kargar, K. Varesi","doi":"10.1109/PSC49016.2019.9081558","DOIUrl":"https://doi.org/10.1109/PSC49016.2019.9081558","url":null,"abstract":"This paper proposes a new 11-level high step-up switched-capacitor based inverter topology. The suggested topology uses only one DC source and can produce a gain of 5. Also it can produce high ratios of steps per switches, gate driver circuits and DC sources, which leads to less devices, less volume, weight and expense. The Total Harmonic Distortion (THD) of produced voltage is low. So, the size of output filter can be reduced. Also, the suggested structure can be well applied on supplying low power factor $R-L$ loads. Natural voltage balancing of capacitors is another main merit of suggested structure that results in simple and easy control strategy. The suggested configuration has been introduced and its operational modes have been explained. Then it has been compared with novel similar topologies and simulated in MATLAB-SIMULINK. The comparison and simulation results confirm the appropriate features and proper operation of suggested configuration.","PeriodicalId":359817,"journal":{"name":"2019 International Power System Conference (PSC)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116732802","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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