Pub Date : 2021-01-21DOI: 10.1109/SeFet48154.2021.9375703
H. Bouchekhou, H. Allag, A. Hamane
In this work, in goal to observe the specific characteristics of high temperature superconducting (HTS) bulk dedicated to electric transport applications, we developed new approach based on induced currents calculation using bi-dimensional magnetically coupled elements method. The currents distributions in the HTS bulk are calculated using the puissance law model and the resistivity is also calculated with the Ohm's law. All the system is resolved using iterative fixed-point method. The results of current densities penetration are shown for sufficiently meshed HTS bulk.
{"title":"New Considerations of Superconductor Bulk and Copper Coil Interactions: Electric Transport Applications","authors":"H. Bouchekhou, H. Allag, A. Hamane","doi":"10.1109/SeFet48154.2021.9375703","DOIUrl":"https://doi.org/10.1109/SeFet48154.2021.9375703","url":null,"abstract":"In this work, in goal to observe the specific characteristics of high temperature superconducting (HTS) bulk dedicated to electric transport applications, we developed new approach based on induced currents calculation using bi-dimensional magnetically coupled elements method. The currents distributions in the HTS bulk are calculated using the puissance law model and the resistivity is also calculated with the Ohm's law. All the system is resolved using iterative fixed-point method. The results of current densities penetration are shown for sufficiently meshed HTS bulk.","PeriodicalId":232560,"journal":{"name":"2021 International Conference on Sustainable Energy and Future Electric Transportation (SEFET)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127920579","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 : 2021-01-21DOI: 10.1109/SeFet48154.2021.9375819
Aslam Shaik, Abdul Khadar Shaik, J. Shaik, P. Meeravali Khan, Sushmitha Mamilla
This paper deals with space vector pulse width modulation (SVPWM) which is one of the most popular techniques to control the inverter power switches. SVPWM is the implementation of space vector as modulating wave along with a carrier wave. In direct SVPWM the switching time is directly calculated from active and zero time equations and in modified SVPWM we increase the active times from above equations by simultaneously decreasing the zero state times. Thus direct SVPWM and modified SVPWM techniques are carried using MATLAB/ simulink for a 3 phase Voltage source inverter (VSI) and result is tabulated.
{"title":"Effect of Active Time Adjustment in Space Vector Pulse Width Modulation Strategy","authors":"Aslam Shaik, Abdul Khadar Shaik, J. Shaik, P. Meeravali Khan, Sushmitha Mamilla","doi":"10.1109/SeFet48154.2021.9375819","DOIUrl":"https://doi.org/10.1109/SeFet48154.2021.9375819","url":null,"abstract":"This paper deals with space vector pulse width modulation (SVPWM) which is one of the most popular techniques to control the inverter power switches. SVPWM is the implementation of space vector as modulating wave along with a carrier wave. In direct SVPWM the switching time is directly calculated from active and zero time equations and in modified SVPWM we increase the active times from above equations by simultaneously decreasing the zero state times. Thus direct SVPWM and modified SVPWM techniques are carried using MATLAB/ simulink for a 3 phase Voltage source inverter (VSI) and result is tabulated.","PeriodicalId":232560,"journal":{"name":"2021 International Conference on Sustainable Energy and Future Electric Transportation (SEFET)","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132711799","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 : 2021-01-21DOI: 10.1109/SeFet48154.2021.9375644
G. R. Yadav, E. Muneender, M. Santhosh
Accurate wind speed prediction is a essential for enhanced wind energy integration with grid. A hybrid forecasting model is implemented to improve prediction accuracy. Decomposition technique is utilized to separate the input training wind speed data into intrinsic mode functions (IMFs). Deep neural network is used for the feature learning from each sub-series signal. Thus, the developed approach is tested with National Institute of Wind Energy (NIWE) dataset. Experimental evaluation in terms of statistical indices confirms that proposed hybrid model outperforms the existing benchmark approaches.
{"title":"Wind speed prediction using hybrid long short-term memory neural network based approach","authors":"G. R. Yadav, E. Muneender, M. Santhosh","doi":"10.1109/SeFet48154.2021.9375644","DOIUrl":"https://doi.org/10.1109/SeFet48154.2021.9375644","url":null,"abstract":"Accurate wind speed prediction is a essential for enhanced wind energy integration with grid. A hybrid forecasting model is implemented to improve prediction accuracy. Decomposition technique is utilized to separate the input training wind speed data into intrinsic mode functions (IMFs). Deep neural network is used for the feature learning from each sub-series signal. Thus, the developed approach is tested with National Institute of Wind Energy (NIWE) dataset. Experimental evaluation in terms of statistical indices confirms that proposed hybrid model outperforms the existing benchmark approaches.","PeriodicalId":232560,"journal":{"name":"2021 International Conference on Sustainable Energy and Future Electric Transportation (SEFET)","volume":"153 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133167718","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 : 2021-01-21DOI: 10.1109/SeFet48154.2021.9375714
Kasoju Bharath Kumar, A. Bhanuchandar, C. Mahesh
This paper presents a novel control scheme for symmetric seven level Multi-Level DC link Inverter (MLDCL) as fed to RL load with reduced carrier strategy. The design of 7L-MLDCL can be done by taking three equal DC sources (assume PV with Boost converters) as level generator side and output phase voltage is taken at polarity generator side. All the traditional MLI like CHB, DCMLI, FCMLIs for generating ‘m’ level output, takes the switch count around 2(m-1) but the proposed inverter can reduce the switch count as (m+3). In reduced device count (RDC) MLIs, switch count reduction is one of important factor in the mean of each switch generally requires gate driver circuit, protection circuit and heat sink. The Simulation results of proposed inverter are validated through MATLAB/Simulink environment.
本文提出了一种基于减载波策略的对称七电平多电平直流链路逆变器(MLDCL)控制方案。7L-MLDCL的设计可以采用三个相等的直流电源(假设带有升压变换器的PV)作为电平发生器侧，输出相电压在极性发生器侧。所有传统的MLI，如CHB, DCMLI, fcmli，用于产生' m '级输出，开关计数约为2(m-1)，但所提出的逆变器可以将开关计数减少为(m+3)。在减少器件计数(RDC)的mli中，开关计数的减少是重要因素之一，每个开关的平均值通常需要栅极驱动电路、保护电路和散热器。通过MATLAB/Simulink环境对逆变器的仿真结果进行了验证。
{"title":"A Novel Control Scheme for Symmetric Seven Level Reduced Device Count Multi-Level DC Link (MLDCL) Inverter","authors":"Kasoju Bharath Kumar, A. Bhanuchandar, C. Mahesh","doi":"10.1109/SeFet48154.2021.9375714","DOIUrl":"https://doi.org/10.1109/SeFet48154.2021.9375714","url":null,"abstract":"This paper presents a novel control scheme for symmetric seven level Multi-Level DC link Inverter (MLDCL) as fed to RL load with reduced carrier strategy. The design of 7L-MLDCL can be done by taking three equal DC sources (assume PV with Boost converters) as level generator side and output phase voltage is taken at polarity generator side. All the traditional MLI like CHB, DCMLI, FCMLIs for generating ‘m’ level output, takes the switch count around 2(m-1) but the proposed inverter can reduce the switch count as (m+3). In reduced device count (RDC) MLIs, switch count reduction is one of important factor in the mean of each switch generally requires gate driver circuit, protection circuit and heat sink. The Simulation results of proposed inverter are validated through MATLAB/Simulink environment.","PeriodicalId":232560,"journal":{"name":"2021 International Conference on Sustainable Energy and Future Electric Transportation (SEFET)","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133930150","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 : 2021-01-21DOI: 10.1109/SeFet48154.2021.9375802
Kishan Jayasawal, Arbind Kumar Karna, K. Thapa
A hybrid energy storage system (HESS) comprising of battery and supercapacitor (SC) has been employed to resolve the issues faced by single storage systems used for electric vehicles (EVs) application. The battery ESS is able to provide better mileage, but unable to deliver a higher speed. Also, battery under high-stress level undergoes degradation and requires frequent replacement. Besides, SC is able to provide higher speed; however, it is unable to deliver the desired mileage to the vehicle. In order to solve it, a HESS is required. Various topologies exist in the literature, which defines the interface between the two ESS to provide optimal use of each. Based on the existing literature, this manuscript provides an overview of various topologies along with detailed comparative analysis based on cost, flexibility, control, efficiency, and size of DC/DC converter. Based on the manuscript and requirements, the selection of interfacing topology can be readily acquired.
{"title":"Topologies for Interfacing Supercapacitor and Battery in Hybrid Electric Vehicle Applications: An Overview","authors":"Kishan Jayasawal, Arbind Kumar Karna, K. Thapa","doi":"10.1109/SeFet48154.2021.9375802","DOIUrl":"https://doi.org/10.1109/SeFet48154.2021.9375802","url":null,"abstract":"A hybrid energy storage system (HESS) comprising of battery and supercapacitor (SC) has been employed to resolve the issues faced by single storage systems used for electric vehicles (EVs) application. The battery ESS is able to provide better mileage, but unable to deliver a higher speed. Also, battery under high-stress level undergoes degradation and requires frequent replacement. Besides, SC is able to provide higher speed; however, it is unable to deliver the desired mileage to the vehicle. In order to solve it, a HESS is required. Various topologies exist in the literature, which defines the interface between the two ESS to provide optimal use of each. Based on the existing literature, this manuscript provides an overview of various topologies along with detailed comparative analysis based on cost, flexibility, control, efficiency, and size of DC/DC converter. Based on the manuscript and requirements, the selection of interfacing topology can be readily acquired.","PeriodicalId":232560,"journal":{"name":"2021 International Conference on Sustainable Energy and Future Electric Transportation (SEFET)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134446893","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 : 2021-01-21DOI: 10.1109/SeFet48154.2021.9375717
U. Qureshi, A. Ghosh, B. K. Panigrahi
Charging of electric vehicle in an uncontrolled manner can seriously impact the power distribution grid and make the large scale adoption of electric mobility non viable. In this paper we propose an online charging discharging decision sequence for electric vehicles in a commercial charging station to minimize the overall cost of charging the electric vehicles while satisfying the number of constraints. The control problem has been formulated as a multi-objective optimization problem, which aims to reduce the cost of charging the electric vehicles, reducing the frequent change in charging rates, flattening the load profile subject to equality and inequality constrains of the chargers and the grid. The decision sequence is capable of handling both the homogeneous as well as heterogeneous charging requirements with random arrival times and deadlines. The problem is transformed to a convex optimization problem which can be solved using any standard convex optimization toolbox. We empirically demonstrate that our proposed decision reduces the cost of charging and frequent changes in charging rates while reducing the peak loading on the grid.
{"title":"Real-Time Control for Charging Discharging of Electric Vehicles in a Charging Station with Renewable Generation and Battery Storage","authors":"U. Qureshi, A. Ghosh, B. K. Panigrahi","doi":"10.1109/SeFet48154.2021.9375717","DOIUrl":"https://doi.org/10.1109/SeFet48154.2021.9375717","url":null,"abstract":"Charging of electric vehicle in an uncontrolled manner can seriously impact the power distribution grid and make the large scale adoption of electric mobility non viable. In this paper we propose an online charging discharging decision sequence for electric vehicles in a commercial charging station to minimize the overall cost of charging the electric vehicles while satisfying the number of constraints. The control problem has been formulated as a multi-objective optimization problem, which aims to reduce the cost of charging the electric vehicles, reducing the frequent change in charging rates, flattening the load profile subject to equality and inequality constrains of the chargers and the grid. The decision sequence is capable of handling both the homogeneous as well as heterogeneous charging requirements with random arrival times and deadlines. The problem is transformed to a convex optimization problem which can be solved using any standard convex optimization toolbox. We empirically demonstrate that our proposed decision reduces the cost of charging and frequent changes in charging rates while reducing the peak loading on the grid.","PeriodicalId":232560,"journal":{"name":"2021 International Conference on Sustainable Energy and Future Electric Transportation (SEFET)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131198658","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 : 2021-01-21DOI: 10.1109/SeFet48154.2021.9375799
Gaurav Modi, Bhim Singh
A low voltage grid-tied solar PV (GSPV) system suffers from poor power quality (PQ) due to the distorted currents drawn by the loads affixed at the point of common coupling (PCC). Moreover, during the peak PV (Photovoltaic) array generation and low load condition, the PCC voltages rise beyond the prescribed limit as par the IEEE std. 1547. Hence, this work presents the control and operation of the GSPV system to satisfy the IEEE-519 and IEEE-1547 standards by improving the PQ at the PCC and to limit the rise in PCC voltages as par the specified limit, respectively. The system either works at unity power factor (UPF) mode or voltage regulation (VR) mode depending upon the PCC voltage variation. It maintains the grid currents distortionfree and balanced during its operation. Here, an in-loop filter based second-order generalized integrator (ILF-SOGI) algorithm is used to control the GSPV system. The proportional-integral (PI) based perturb and observe (P&O) algorithm is used to maximize the efficiency of the GSPV system. A simulation study is carried out in MATLAB environment for performance validation of the presented GSPV system.
{"title":"Control of Low Voltage Grid-Tied Solar PV System","authors":"Gaurav Modi, Bhim Singh","doi":"10.1109/SeFet48154.2021.9375799","DOIUrl":"https://doi.org/10.1109/SeFet48154.2021.9375799","url":null,"abstract":"A low voltage grid-tied solar PV (GSPV) system suffers from poor power quality (PQ) due to the distorted currents drawn by the loads affixed at the point of common coupling (PCC). Moreover, during the peak PV (Photovoltaic) array generation and low load condition, the PCC voltages rise beyond the prescribed limit as par the IEEE std. 1547. Hence, this work presents the control and operation of the GSPV system to satisfy the IEEE-519 and IEEE-1547 standards by improving the PQ at the PCC and to limit the rise in PCC voltages as par the specified limit, respectively. The system either works at unity power factor (UPF) mode or voltage regulation (VR) mode depending upon the PCC voltage variation. It maintains the grid currents distortionfree and balanced during its operation. Here, an in-loop filter based second-order generalized integrator (ILF-SOGI) algorithm is used to control the GSPV system. The proportional-integral (PI) based perturb and observe (P&O) algorithm is used to maximize the efficiency of the GSPV system. A simulation study is carried out in MATLAB environment for performance validation of the presented GSPV system.","PeriodicalId":232560,"journal":{"name":"2021 International Conference on Sustainable Energy and Future Electric Transportation (SEFET)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129484641","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 : 2021-01-21DOI: 10.1109/SeFet48154.2021.9375715
M. Deepika, M. Kavitha, N. S. Kalyan Chakravarthy, J. Rao, D. Reddy, B. M. Chandra
This paper provides a typical case study on energy monitoring system in a campus where hybrid energy is being used i.e., both solar and grid power. A critical review on previously used energy monitoring systems is also included in this paper. As the current trend is going with the smartness which includes smart-cities, smart buildings, smart phones, etc., same thing can be extended in terms of energy monitoring. This can be done by using the most widely using IoT technology. A proper monitoring of energy delivered, energy consumed and real time updates on the power analysis may assists to estimate the cost of electricity consumed. Also, the ways to reduce the electricity bill in efficient manner. A campus in the near-by location is selected, power consumption analysis is performed and some significant outcomes are reported. The renewable (solar) energy maintenance is another important point to be noticed. Having real time updates on the solar energy generation and distribution may help the users to maintain cost-effective environment.
{"title":"A Critical Study on Campus Energy Monitoring System and Role of IoT","authors":"M. Deepika, M. Kavitha, N. S. Kalyan Chakravarthy, J. Rao, D. Reddy, B. M. Chandra","doi":"10.1109/SeFet48154.2021.9375715","DOIUrl":"https://doi.org/10.1109/SeFet48154.2021.9375715","url":null,"abstract":"This paper provides a typical case study on energy monitoring system in a campus where hybrid energy is being used i.e., both solar and grid power. A critical review on previously used energy monitoring systems is also included in this paper. As the current trend is going with the smartness which includes smart-cities, smart buildings, smart phones, etc., same thing can be extended in terms of energy monitoring. This can be done by using the most widely using IoT technology. A proper monitoring of energy delivered, energy consumed and real time updates on the power analysis may assists to estimate the cost of electricity consumed. Also, the ways to reduce the electricity bill in efficient manner. A campus in the near-by location is selected, power consumption analysis is performed and some significant outcomes are reported. The renewable (solar) energy maintenance is another important point to be noticed. Having real time updates on the solar energy generation and distribution may help the users to maintain cost-effective environment.","PeriodicalId":232560,"journal":{"name":"2021 International Conference on Sustainable Energy and Future Electric Transportation (SEFET)","volume":"1999 16","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114129520","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 : 2021-01-21DOI: 10.1109/SeFet48154.2021.9375800
A. Hota, V. Sonti, Sachin Jain, V. Agarwal
Common mode voltage (CMV) is a serious problem in case of grid-tied solar PV multilevel inverter with transformerless implementation. Due to CMV there is flow of leakage current which creates issues like grid current distortion, increased losses, safety issues etc. To address this issue, this paper proposes a novel transformerless inverter with voltage boosting capability and 5-level performance. The proposed inverter topology is based on switched capacitor principle which enables extra level generation and voltage boosting. A 4 quadrant switch is connected across the output terminals to achieve ac decoupling feature in the proposed inverter. A novel PWM strategy is proposed to operate the given topology in such a way that CMV is eliminated entirely. A simulation model is developed in PLECS software to study the performance of the proposed system and justify various claims.
{"title":"A Novel Single-Phase Switched-Capacitor Transformer-less 5-level Inverter Topology with Voltage Boosting","authors":"A. Hota, V. Sonti, Sachin Jain, V. Agarwal","doi":"10.1109/SeFet48154.2021.9375800","DOIUrl":"https://doi.org/10.1109/SeFet48154.2021.9375800","url":null,"abstract":"Common mode voltage (CMV) is a serious problem in case of grid-tied solar PV multilevel inverter with transformerless implementation. Due to CMV there is flow of leakage current which creates issues like grid current distortion, increased losses, safety issues etc. To address this issue, this paper proposes a novel transformerless inverter with voltage boosting capability and 5-level performance. The proposed inverter topology is based on switched capacitor principle which enables extra level generation and voltage boosting. A 4 quadrant switch is connected across the output terminals to achieve ac decoupling feature in the proposed inverter. A novel PWM strategy is proposed to operate the given topology in such a way that CMV is eliminated entirely. A simulation model is developed in PLECS software to study the performance of the proposed system and justify various claims.","PeriodicalId":232560,"journal":{"name":"2021 International Conference on Sustainable Energy and Future Electric Transportation (SEFET)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122032694","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 : 2021-01-21DOI: 10.1109/SeFet48154.2021.9375778
S. Karmakar, S. Yadav, Bhim Singh
In this work a MW size voltage source converter (VSC) is switched at the fundamental frequency. This converter can attain eleven-level from cascaded H-bridge cells. The transformer isolation (11L-TCHB) is implemented with a battery energy storage (BES) that has a rating of 24MW/16SMWh. The BES is used in an 40MW solar PV plant for the support of active power under solar fluctuations. The TCHB-VSC and NAS batteries complement one another as TCHB enables the NAS container to be connected directly with its H-bridges for independent state-of-charge (SOC) control of the battery. The NAS-battery provides DC input source to TCHB VSC for staircase voltage waveform generation and enables NAS-BES to have high voltage integration with the grid. In addition, the fundamental switching gave high conversion efficiency and reduced switching stress over high-frequency schemes. This integrated system is designed and modeled to validate the performance under solar dynamics. Simulation results are discussed in detail to present a solar photovoltaic (SPV) system with improved power quality.
{"title":"Cascaded Converter for Large-Scale Solar-BES System with Transformer Isolation","authors":"S. Karmakar, S. Yadav, Bhim Singh","doi":"10.1109/SeFet48154.2021.9375778","DOIUrl":"https://doi.org/10.1109/SeFet48154.2021.9375778","url":null,"abstract":"In this work a MW size voltage source converter (VSC) is switched at the fundamental frequency. This converter can attain eleven-level from cascaded H-bridge cells. The transformer isolation (11L-TCHB) is implemented with a battery energy storage (BES) that has a rating of 24MW/16SMWh. The BES is used in an 40MW solar PV plant for the support of active power under solar fluctuations. The TCHB-VSC and NAS batteries complement one another as TCHB enables the NAS container to be connected directly with its H-bridges for independent state-of-charge (SOC) control of the battery. The NAS-battery provides DC input source to TCHB VSC for staircase voltage waveform generation and enables NAS-BES to have high voltage integration with the grid. In addition, the fundamental switching gave high conversion efficiency and reduced switching stress over high-frequency schemes. This integrated system is designed and modeled to validate the performance under solar dynamics. Simulation results are discussed in detail to present a solar photovoltaic (SPV) system with improved power quality.","PeriodicalId":232560,"journal":{"name":"2021 International Conference on Sustainable Energy and Future Electric Transportation (SEFET)","volume":"51 Suppl 53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126888113","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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