Pub Date : 2021-01-21DOI: 10.1109/SeFet48154.2021.9375781
G. Lakshmi, O. Rubanenko, I. Hunko
This paper is mainly focused on solving the urgent issue of optimal integration of renewable energy power plants into distribution grids operating in Ukraine on the 6-10kV voltage and sectioned according to the requirements for operational reliability. In particular, the problem of reducing power losses in such networks with distributed generation and improvement of voltage levels at the nodes is considered. The article proposes a method of shifting the current point of the flow to the partitioning site using available network power plants operating on renewable energy sources.
{"title":"Control of the Sectioned Electrical Network Modes with Renewable Energy Sources","authors":"G. Lakshmi, O. Rubanenko, I. Hunko","doi":"10.1109/SeFet48154.2021.9375781","DOIUrl":"https://doi.org/10.1109/SeFet48154.2021.9375781","url":null,"abstract":"This paper is mainly focused on solving the urgent issue of optimal integration of renewable energy power plants into distribution grids operating in Ukraine on the 6-10kV voltage and sectioned according to the requirements for operational reliability. In particular, the problem of reducing power losses in such networks with distributed generation and improvement of voltage levels at the nodes is considered. The article proposes a method of shifting the current point of the flow to the partitioning site using available network power plants operating on renewable energy sources.","PeriodicalId":232560,"journal":{"name":"2021 International Conference on Sustainable Energy and Future Electric Transportation (SEFET)","volume":"13 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":"122953986","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/SeFet48154.2021.9375809
M. Veerachary
A switching capacitor assisted buck-boost converter is presented in this paper. This converter is capable of yielding a high buck-boost voltage gain at smaller duty ratios with maximum duty ratio range is up to 0.5. To achieve this, switching capacitor concept is used. Here, the capacitor switching action and interconnection with the inductance is enabled by the H-bridge which is formulated by a pair of controllable switches and diodes. A low-pass filter capacitor is used on the load side to ensure ripple free constant dc-voltage. Firstly, principle of operation is discussed followed by steady-state analysis is established. State-space models are derived to formulate the investigate the proposed converter behavior under dynamic conditions and then to design suitable controller. For concept validation and verification, a 15/48 V, 15/30 W prototype is constructed which is supplied from an input voltage of 24 V. Simulation and experimental results are depicted to demonstrate the proposed converter salient features.
{"title":"Switching Capacitor Assisted Buck-Boost Converter","authors":"M. Veerachary","doi":"10.1109/SeFet48154.2021.9375809","DOIUrl":"https://doi.org/10.1109/SeFet48154.2021.9375809","url":null,"abstract":"A switching capacitor assisted buck-boost converter is presented in this paper. This converter is capable of yielding a high buck-boost voltage gain at smaller duty ratios with maximum duty ratio range is up to 0.5. To achieve this, switching capacitor concept is used. Here, the capacitor switching action and interconnection with the inductance is enabled by the H-bridge which is formulated by a pair of controllable switches and diodes. A low-pass filter capacitor is used on the load side to ensure ripple free constant dc-voltage. Firstly, principle of operation is discussed followed by steady-state analysis is established. State-space models are derived to formulate the investigate the proposed converter behavior under dynamic conditions and then to design suitable controller. For concept validation and verification, a 15/48 V, 15/30 W prototype is constructed which is supplied from an input voltage of 24 V. Simulation and experimental results are depicted to demonstrate the proposed converter salient features.","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":"121217244","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/SeFet48154.2021.9375736
Utsav Sharma, Bhim Singh
The poor power quality charging operation impacts the grid adversely. The slow unidirectional charging of light electric vehicles (LEVs) ceases the user for the limited operations. In this work, a bidirectional on-board charger (OBC) for an LEV is proposed. The bidirectional power flow operation increases the usability of the LEVs during non-commute hours. A voltage source converter is used as a front-end converter and interleaved isolated Luo (ii-Luo) converter is used as a second stage converter. The ii-Luo converter regulates the charging and discharging operation of the OBC. The power rating to design the OBC, is 2kW. For the fast charging operation, it charges a 48V battery with the 2kW power. Moreover, for slow charging operation, it charges the same battery with a 1kW power. The controllers are designed to regulate the overshoot, undershoot, and ensures the smooth operation of OBC.
{"title":"A Multistep Bidirectional Onboard Charger for Light Electric Vehicles Using Interleaved Luo Converter","authors":"Utsav Sharma, Bhim Singh","doi":"10.1109/SeFet48154.2021.9375736","DOIUrl":"https://doi.org/10.1109/SeFet48154.2021.9375736","url":null,"abstract":"The poor power quality charging operation impacts the grid adversely. The slow unidirectional charging of light electric vehicles (LEVs) ceases the user for the limited operations. In this work, a bidirectional on-board charger (OBC) for an LEV is proposed. The bidirectional power flow operation increases the usability of the LEVs during non-commute hours. A voltage source converter is used as a front-end converter and interleaved isolated Luo (ii-Luo) converter is used as a second stage converter. The ii-Luo converter regulates the charging and discharging operation of the OBC. The power rating to design the OBC, is 2kW. For the fast charging operation, it charges a 48V battery with the 2kW power. Moreover, for slow charging operation, it charges the same battery with a 1kW power. The controllers are designed to regulate the overshoot, undershoot, and ensures the smooth operation of OBC.","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":"128657923","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/SeFet48154.2021.9375735
Y. Satyavani, P. B. Bobba, V. Sandeep
Wireless magnetic resonant power transfer is an emerging technology which has many advantages over the other Wireless Power Transfer (WPT) methods due to lack of interference, its efficiency for medium ranges and safety. This paper proposes the WPT applications for charging the battery of electric powered Unmanned Air Vehicles (UAV). Depending upon the flight path of the UAV and estimated power, the coils are designed and developed. These operate as a wireless power transferring system at high frequency of 63.5 KHz with a gap of 60mm between the two coils. In this paper, the concepts referred for the design and analysis for WPT system has been presented. This has been achieved using magnetic resonant coupling with two coil WPT system using SS topology. The analysis has been carried out using results from simulations and hardware experiments which can be used for the selection of battery required for the UAV and also the selection of components of UAV depending upon the particular application.
{"title":"Design and Development of Wireless Power Transfer System for UAV","authors":"Y. Satyavani, P. B. Bobba, V. Sandeep","doi":"10.1109/SeFet48154.2021.9375735","DOIUrl":"https://doi.org/10.1109/SeFet48154.2021.9375735","url":null,"abstract":"Wireless magnetic resonant power transfer is an emerging technology which has many advantages over the other Wireless Power Transfer (WPT) methods due to lack of interference, its efficiency for medium ranges and safety. This paper proposes the WPT applications for charging the battery of electric powered Unmanned Air Vehicles (UAV). Depending upon the flight path of the UAV and estimated power, the coils are designed and developed. These operate as a wireless power transferring system at high frequency of 63.5 KHz with a gap of 60mm between the two coils. In this paper, the concepts referred for the design and analysis for WPT system has been presented. This has been achieved using magnetic resonant coupling with two coil WPT system using SS topology. The analysis has been carried out using results from simulations and hardware experiments which can be used for the selection of battery required for the UAV and also the selection of components of UAV depending upon the particular application.","PeriodicalId":232560,"journal":{"name":"2021 International Conference on Sustainable Energy and Future Electric Transportation (SEFET)","volume":"138 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":"116727570","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/SeFet48154.2021.9375727
N. K. Muppalla, Y. S. Rao, Joseph Sanam
High voltage gain converters play a key role in non-conventional energy sources for increasing the regulated voltage transformation ratio at the output side and tracking the maximum power. This paper presents the mathematical analysis of single switch integrated high gain dc-dc converter. state space averaging method is applied to the converter for obtaining small signal model. Designed the Type-II compensator using SISO GUI Design tool and compared the performance of the converter for both open loop and closed loop operation.
{"title":"Design of Compensator for High Gain DC-DC Converter","authors":"N. K. Muppalla, Y. S. Rao, Joseph Sanam","doi":"10.1109/SeFet48154.2021.9375727","DOIUrl":"https://doi.org/10.1109/SeFet48154.2021.9375727","url":null,"abstract":"High voltage gain converters play a key role in non-conventional energy sources for increasing the regulated voltage transformation ratio at the output side and tracking the maximum power. This paper presents the mathematical analysis of single switch integrated high gain dc-dc converter. state space averaging method is applied to the converter for obtaining small signal model. Designed the Type-II compensator using SISO GUI Design tool and compared the performance of the converter for both open loop and closed loop operation.","PeriodicalId":232560,"journal":{"name":"2021 International Conference on Sustainable Energy and Future Electric Transportation (SEFET)","volume":"77 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":"115323910","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/SeFet48154.2021.9375699
Shailendra Kumar, Bhim Singh, U. Kalla, Sanjeev Singh, A. Mittal
This paper deals with a hybrid small hydro-photovoltaic (PV) array with a battery storage based microgrid for rural areas. This microgrid is presented for an uninterrupted electrification and provides power to the local loads in remote areas. For small hydro, a self-excited induction generator (SEIG) is utilized with excitation capacitors. The Volterra filtered-X least mean square (VFXLMS) technique based on a multichannel structure is utilized to address power quality issues because of nonlinear loads tied to the microgrid. The presented filter effectively suppresses dominant harmonic components of load currents and estimates fundamental frequency signal of load currents. The accuracy of presented technique is enhanced by mitigating effect of DC-offset in sensed signals from generator currents. The PV array through a boost converter and battery through a bidirectional converter are tied at DC link of voltage source converter (VSC). The bidirectional converter manages export/import power from/to the battery. The response of hybrid microgrid is presented at balanced/unbalanced load and PV insolation changes.
{"title":"Power Quality Control of Small Hydro-PV Array and Battery Storage Based Microgrid for Rural Areas","authors":"Shailendra Kumar, Bhim Singh, U. Kalla, Sanjeev Singh, A. Mittal","doi":"10.1109/SeFet48154.2021.9375699","DOIUrl":"https://doi.org/10.1109/SeFet48154.2021.9375699","url":null,"abstract":"This paper deals with a hybrid small hydro-photovoltaic (PV) array with a battery storage based microgrid for rural areas. This microgrid is presented for an uninterrupted electrification and provides power to the local loads in remote areas. For small hydro, a self-excited induction generator (SEIG) is utilized with excitation capacitors. The Volterra filtered-X least mean square (VFXLMS) technique based on a multichannel structure is utilized to address power quality issues because of nonlinear loads tied to the microgrid. The presented filter effectively suppresses dominant harmonic components of load currents and estimates fundamental frequency signal of load currents. The accuracy of presented technique is enhanced by mitigating effect of DC-offset in sensed signals from generator currents. The PV array through a boost converter and battery through a bidirectional converter are tied at DC link of voltage source converter (VSC). The bidirectional converter manages export/import power from/to the battery. The response of hybrid microgrid is presented at balanced/unbalanced load and PV insolation changes.","PeriodicalId":232560,"journal":{"name":"2021 International Conference on Sustainable Energy and Future Electric Transportation (SEFET)","volume":"8 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":"115464977","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/sefet48154.2021.9375742
{"title":"[SeFet 2021 Copyright notice]","authors":"","doi":"10.1109/sefet48154.2021.9375742","DOIUrl":"https://doi.org/10.1109/sefet48154.2021.9375742","url":null,"abstract":"","PeriodicalId":232560,"journal":{"name":"2021 International Conference on Sustainable Energy and Future Electric Transportation (SEFET)","volume":"5 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":"123663344","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/SeFet48154.2021.9375796
Joseph Sanam, Yakasiri Himaja, G. Amulya, N. K. Muppalla
A three-phase inverter-based Active Filter (AF) controlled by Instantaneous real and reactive power theory (PQ theory) based hysteresis and PI controllers are presented in this paper. An Inverter based AF is used to reduce the harmonics caused by non-linear loads in the source voltage and current by injecting the compensating currents. The hysteresis Controller generates the gate pulses required for the operation of AF. Instantaneous real and reactive power theory (PQ theory) monitors the active and reactive powers and generates the reference current accordingly. PI controller regulates the voltage of the DC link capacitor. The MATLAB Simulink model has been designed for the proposed approach and the THD is reduced significantly.
{"title":"Reduction of Harmonics using PQ based Hysteresis Controlled Active Filter","authors":"Joseph Sanam, Yakasiri Himaja, G. Amulya, N. K. Muppalla","doi":"10.1109/SeFet48154.2021.9375796","DOIUrl":"https://doi.org/10.1109/SeFet48154.2021.9375796","url":null,"abstract":"A three-phase inverter-based Active Filter (AF) controlled by Instantaneous real and reactive power theory (PQ theory) based hysteresis and PI controllers are presented in this paper. An Inverter based AF is used to reduce the harmonics caused by non-linear loads in the source voltage and current by injecting the compensating currents. The hysteresis Controller generates the gate pulses required for the operation of AF. Instantaneous real and reactive power theory (PQ theory) monitors the active and reactive powers and generates the reference current accordingly. PI controller regulates the voltage of the DC link capacitor. The MATLAB Simulink model has been designed for the proposed approach and the THD is reduced significantly.","PeriodicalId":232560,"journal":{"name":"2021 International Conference on Sustainable Energy and Future Electric Transportation (SEFET)","volume":"24 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":"122769249","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/SeFet48154.2021.9375729
Sweeka Meshram
This paper presents a new control strategy for grid integrated hydro/PV hybrid system. Under grid connected mode, the control strategy will work as a constant current controller (CCC) to inject the specific quantity of power generated by micro-grid system and provide robust tracking of generated active and reactive power trajectories. As the fault transpires in electrical power system, the power grid must be disconnected from rest of the micro-grid system to avoid potential hazard and this situation is identified as islanding. In islanding mode of operation, the proposed control strategy switch to constant voltage controller (CVC) for maintaining constant voltage at the point of common coupling (PCC) to feed local sensitive load. The hydro and PV systems are considered in this paper as micro-grid system, which are hybridized for injecting generated power to main grid. The transient and steady state analysis, stability analysis of the proposed grid integrated hybrid system is performed to realize the improved performance of the system. The harmonic analysis is also done to prove the improved power quality of the system. The presented results clearly indicates the control strategy has full control over the active and reactive power flow to/from the hybrid system and proposed system is more effective, reliable, less complex, have higher power quality and better dynamic performance under most severe fault conditions.
{"title":"Hydro/PV Hybrid Power System with New Control Strategy to Mitigate the Voltage Disturbances","authors":"Sweeka Meshram","doi":"10.1109/SeFet48154.2021.9375729","DOIUrl":"https://doi.org/10.1109/SeFet48154.2021.9375729","url":null,"abstract":"This paper presents a new control strategy for grid integrated hydro/PV hybrid system. Under grid connected mode, the control strategy will work as a constant current controller (CCC) to inject the specific quantity of power generated by micro-grid system and provide robust tracking of generated active and reactive power trajectories. As the fault transpires in electrical power system, the power grid must be disconnected from rest of the micro-grid system to avoid potential hazard and this situation is identified as islanding. In islanding mode of operation, the proposed control strategy switch to constant voltage controller (CVC) for maintaining constant voltage at the point of common coupling (PCC) to feed local sensitive load. The hydro and PV systems are considered in this paper as micro-grid system, which are hybridized for injecting generated power to main grid. The transient and steady state analysis, stability analysis of the proposed grid integrated hybrid system is performed to realize the improved performance of the system. The harmonic analysis is also done to prove the improved power quality of the system. The presented results clearly indicates the control strategy has full control over the active and reactive power flow to/from the hybrid system and proposed system is more effective, reliable, less complex, have higher power quality and better dynamic performance under most severe fault conditions.","PeriodicalId":232560,"journal":{"name":"2021 International Conference on Sustainable Energy and Future Electric Transportation (SEFET)","volume":"122 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":"131439099","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/SeFet48154.2021.9375670
Ritula Thakur, Salil Prashar
Transient stability assumes a significant job in soundness during shortcoming and huge unsettling influence. This paper looks at a power system stabilizer (PSS) and IWD to improve damping oscillations and upgrade transient stability. The adequacy of a PSS associated with the exciter or potential senator in damping electromechanical motions of the detached simultaneous generator is experimented in this research. For tuning PSS-IWD parameters, another procedure called intelligent water drop (IWD) is proposed. In light of damping proportion results, it is affirmed that the recommended procedure is extra productive than Cuckoo search (CS) in improving the edge steadiness of the framework or system.
{"title":"An Intelligence Method for Designing of Multi-Machine Power System Stabiliser","authors":"Ritula Thakur, Salil Prashar","doi":"10.1109/SeFet48154.2021.9375670","DOIUrl":"https://doi.org/10.1109/SeFet48154.2021.9375670","url":null,"abstract":"Transient stability assumes a significant job in soundness during shortcoming and huge unsettling influence. This paper looks at a power system stabilizer (PSS) and IWD to improve damping oscillations and upgrade transient stability. The adequacy of a PSS associated with the exciter or potential senator in damping electromechanical motions of the detached simultaneous generator is experimented in this research. For tuning PSS-IWD parameters, another procedure called intelligent water drop (IWD) is proposed. In light of damping proportion results, it is affirmed that the recommended procedure is extra productive than Cuckoo search (CS) in improving the edge steadiness of the framework or system.","PeriodicalId":232560,"journal":{"name":"2021 International Conference on Sustainable Energy and Future Electric Transportation (SEFET)","volume":"31 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":"116624229","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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