Pub Date : 2020-02-01DOI: 10.1109/PIICON49524.2020.9113008
M. Bajaj, Surbhi Aggarwal, A. Singh
Power distribution systems are advancing day today with the integration of renewable energy vindicated by growing energy demands and the sake of the global environment. But, the transformation of traditional grids into the smarter one has affected the power quality (PQ) and has given rise to new power quality concerns. The main cause, of these new power quality concerns, is the integration of renewable energy sources (RESs). Analysis of these power quality concerns is essential for predicting the stochastic effects on the operation of the modern power system and evaluating the appropriate solution. This paper presents an overview of power quality concerns arose as a result of an increase in grid integrated renewable energy systems and a mini review on state of the art solutions, in the literature, to alleviate those concerns. Besides, the opportunities for future research on mitigation techniques are also highlighted.
{"title":"Power Quality Concerns with Integration of RESs into the Smart Power Grid and Associated Mitigation Techniques","authors":"M. Bajaj, Surbhi Aggarwal, A. Singh","doi":"10.1109/PIICON49524.2020.9113008","DOIUrl":"https://doi.org/10.1109/PIICON49524.2020.9113008","url":null,"abstract":"Power distribution systems are advancing day today with the integration of renewable energy vindicated by growing energy demands and the sake of the global environment. But, the transformation of traditional grids into the smarter one has affected the power quality (PQ) and has given rise to new power quality concerns. The main cause, of these new power quality concerns, is the integration of renewable energy sources (RESs). Analysis of these power quality concerns is essential for predicting the stochastic effects on the operation of the modern power system and evaluating the appropriate solution. This paper presents an overview of power quality concerns arose as a result of an increase in grid integrated renewable energy systems and a mini review on state of the art solutions, in the literature, to alleviate those concerns. Besides, the opportunities for future research on mitigation techniques are also highlighted.","PeriodicalId":422853,"journal":{"name":"2020 IEEE 9th Power India International Conference (PIICON)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123519314","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 : 2020-02-01DOI: 10.1109/PIICON49524.2020.9112870
P. Achintya, Lalit Kumar Sahu
Multilevel inverter is mostly used in high voltage and high power applications in industry. The possibility of faults raises with an increment in the number of switches in multilevel inverter. In power industries, the reliability of multilevel inverters is one of the main concerns. Hence methods for detecting switch faults are required to improve in the reliability. This paper is mainly focused on open circuit switch fault detection for multilevel inverter. The proposed scheme identifies failed switches by monitoring capacitor current and switches current data. The diagnosis techniques are Artificial Neural Network (ANN), k-Nearest Neighbors (KNN), Support Vector Machines (SVM) and Decision Tree (DT). These methods are only capable for diagnosing failed switches. On identification of the faulty switch, switching sequence has to be reconfigured such that the output voltage is restored to its healthy operating conditions.
{"title":"Open Circuit Switch Fault Detection in Multilevel Inverter Topology using Machine Learning Techniques","authors":"P. Achintya, Lalit Kumar Sahu","doi":"10.1109/PIICON49524.2020.9112870","DOIUrl":"https://doi.org/10.1109/PIICON49524.2020.9112870","url":null,"abstract":"Multilevel inverter is mostly used in high voltage and high power applications in industry. The possibility of faults raises with an increment in the number of switches in multilevel inverter. In power industries, the reliability of multilevel inverters is one of the main concerns. Hence methods for detecting switch faults are required to improve in the reliability. This paper is mainly focused on open circuit switch fault detection for multilevel inverter. The proposed scheme identifies failed switches by monitoring capacitor current and switches current data. The diagnosis techniques are Artificial Neural Network (ANN), k-Nearest Neighbors (KNN), Support Vector Machines (SVM) and Decision Tree (DT). These methods are only capable for diagnosing failed switches. On identification of the faulty switch, switching sequence has to be reconfigured such that the output voltage is restored to its healthy operating conditions.","PeriodicalId":422853,"journal":{"name":"2020 IEEE 9th Power India International Conference (PIICON)","volume":"260 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117099284","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 : 2020-02-01DOI: 10.1109/PIICON49524.2020.9113005
Sisir Kumar Yadav, Ashish Patel, H. Mathur
Unified Power Quality Compensator (UPQC) is a combination of Dynamic voltage regulator (DVR) and Dynamic Static Compensator (DSTATCOM) for mitigation of most power quality issues. Since involving two APFs, various control strategies have been proposed to enhance their utilization. Most control strategies can be classified into three categories- UPQC-P, UPQC-Q, and UPQC-S. Existing literature provides enormous details on various merits and demerits of such methods, like reduction in converter VA ratings, voltage injection etc. Still, a detailed study on power losses of such control strategies needs attention. This paper presents a comparison of different control strategies of UPQC of three-phase system such as UPQC-P, UPQC-Q, UPQC-S in terms of their power consumption losses. Losses are estimated using computer simulations performed in MATLAB/Simulink under various operating conditions of UPQC.
{"title":"Comparison of Power Losses for Different Control Strategies of UPQC","authors":"Sisir Kumar Yadav, Ashish Patel, H. Mathur","doi":"10.1109/PIICON49524.2020.9113005","DOIUrl":"https://doi.org/10.1109/PIICON49524.2020.9113005","url":null,"abstract":"Unified Power Quality Compensator (UPQC) is a combination of Dynamic voltage regulator (DVR) and Dynamic Static Compensator (DSTATCOM) for mitigation of most power quality issues. Since involving two APFs, various control strategies have been proposed to enhance their utilization. Most control strategies can be classified into three categories- UPQC-P, UPQC-Q, and UPQC-S. Existing literature provides enormous details on various merits and demerits of such methods, like reduction in converter VA ratings, voltage injection etc. Still, a detailed study on power losses of such control strategies needs attention. This paper presents a comparison of different control strategies of UPQC of three-phase system such as UPQC-P, UPQC-Q, UPQC-S in terms of their power consumption losses. Losses are estimated using computer simulations performed in MATLAB/Simulink under various operating conditions of UPQC.","PeriodicalId":422853,"journal":{"name":"2020 IEEE 9th Power India International Conference (PIICON)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117123094","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 : 2020-02-01DOI: 10.1109/PIICON49524.2020.9112972
Jitendra Kumar Nama, Arun Kumar Verma
The selection of battery charger technology provides a higher platform for electric vehicles (EVs) in the market. Recent trends are towards the inductive power transfer (IPT) based EV battery chargers (EVBCs) as it is a convenient and safe solution over conventional plug-in EVBC. The currently available IPT system utilizes soft switched power electronic converters while maintaining a near sinusoidal current for a limited power transfer range. In this paper, an improved ZVS IPT topology and it’s switching pattern is proposed. ZVS is achieved by optimizing the classical series compensation and additionally, an auxiliary network is employed to achieve wide-range performance independent of loading conditions. The proposed concept is verified by using MATLAB/ SIMULINK based simulations for resistive and battery load. An efficiency of 92.5% is achieved with ZVS for a full dynamic power transfer range of 300 W to 3000 W.
{"title":"An Efficient Wireless Charger for Electric Vehicle Battery Charging","authors":"Jitendra Kumar Nama, Arun Kumar Verma","doi":"10.1109/PIICON49524.2020.9112972","DOIUrl":"https://doi.org/10.1109/PIICON49524.2020.9112972","url":null,"abstract":"The selection of battery charger technology provides a higher platform for electric vehicles (EVs) in the market. Recent trends are towards the inductive power transfer (IPT) based EV battery chargers (EVBCs) as it is a convenient and safe solution over conventional plug-in EVBC. The currently available IPT system utilizes soft switched power electronic converters while maintaining a near sinusoidal current for a limited power transfer range. In this paper, an improved ZVS IPT topology and it’s switching pattern is proposed. ZVS is achieved by optimizing the classical series compensation and additionally, an auxiliary network is employed to achieve wide-range performance independent of loading conditions. The proposed concept is verified by using MATLAB/ SIMULINK based simulations for resistive and battery load. An efficiency of 92.5% is achieved with ZVS for a full dynamic power transfer range of 300 W to 3000 W.","PeriodicalId":422853,"journal":{"name":"2020 IEEE 9th Power India International Conference (PIICON)","volume":"368-372 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126838277","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 : 2020-02-01DOI: 10.1109/PIICON49524.2020.9113057
Apurti Jain, Ankita Garg, Jeyabalan Velandy, C. Narasimhan
Recently, ester based insulating oils including both natural ester and synthetic ester are being considered as potential alternatives to petroleum based mineral oil due to their better environmental friendly, higher fire safety, non-toxic and continuous overloading benefits. Ester oil has higher permittivity than mineral oil due to chemical compositions. Hence, the higher permittivity of ester oil affects electrical stress distribution in insulation system of transformer and it can also affects frequency response analysis of transformer during sweep frequency response analysis (SFRA). In this paper, to evaluate the differences in permittivity of natural ester and mineral oil, SFRA are performed for a given same winding geometry and insulation arrangement. The mineral oil transformer frequency responses are considered as a reference response and its results are compared with natural ester oil transformer. The frequency domain responses are evaluated using graphical analysis and commonly used numerical indicators of correlation coefficient, standard deviation, absolute sum of logarithmic error, mean square error and Max-min ratio.
{"title":"Frequency Response Analysis for Accounting the Changes in Permittivity of Natural Ester Oil with Mineral Oil","authors":"Apurti Jain, Ankita Garg, Jeyabalan Velandy, C. Narasimhan","doi":"10.1109/PIICON49524.2020.9113057","DOIUrl":"https://doi.org/10.1109/PIICON49524.2020.9113057","url":null,"abstract":"Recently, ester based insulating oils including both natural ester and synthetic ester are being considered as potential alternatives to petroleum based mineral oil due to their better environmental friendly, higher fire safety, non-toxic and continuous overloading benefits. Ester oil has higher permittivity than mineral oil due to chemical compositions. Hence, the higher permittivity of ester oil affects electrical stress distribution in insulation system of transformer and it can also affects frequency response analysis of transformer during sweep frequency response analysis (SFRA). In this paper, to evaluate the differences in permittivity of natural ester and mineral oil, SFRA are performed for a given same winding geometry and insulation arrangement. The mineral oil transformer frequency responses are considered as a reference response and its results are compared with natural ester oil transformer. The frequency domain responses are evaluated using graphical analysis and commonly used numerical indicators of correlation coefficient, standard deviation, absolute sum of logarithmic error, mean square error and Max-min ratio.","PeriodicalId":422853,"journal":{"name":"2020 IEEE 9th Power India International Conference (PIICON)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125218498","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 : 2020-02-01DOI: 10.1109/PIICON49524.2020.9112991
S. Puchalapalli, Bhim Singh
This paper presents a dual layer least mean fourth adaptive filter based algorithm for the grid side converter (GSC) control of a wind turbine driven doubly fed induction generator (DFIG) to extract the active fundamental weights of both load and stator currents in grid connected mode. This is essentially eliminates the use of phase locked loop, abc to dq and dq to abc transformations in GSC control as compared to conventional synchronous reference frame based vector control. Moreover, a reduced sensor based control is incorporated in the rotor side converter (RSC) control of DFIG. In this, rotor currents are estimated in stationary reference frame from sensed stator currents and stator voltages. Therefore, in totality, it reduces two current sensors and results in lower cost and less complexity of the system. To qualify the system performance, simulations are carried out under linear and nonlinear loads, constant and varying wind speed, and nonlinear unbalanced loads. The total harmonic distortions of currents and voltages, are obtained as specified in the standard of the IEEE 519. Moreover, both the grid and DFIG stator are operated at unity power factor. Finally, the system steady state and dyamic performances, are verified on a prototype developed in the laboratory.
{"title":"Dual Layer Least Mean Fourth Based Control of Grid-Interfaced Wind Turbine Coupled DFIG with Reduced Current Sensors","authors":"S. Puchalapalli, Bhim Singh","doi":"10.1109/PIICON49524.2020.9112991","DOIUrl":"https://doi.org/10.1109/PIICON49524.2020.9112991","url":null,"abstract":"This paper presents a dual layer least mean fourth adaptive filter based algorithm for the grid side converter (GSC) control of a wind turbine driven doubly fed induction generator (DFIG) to extract the active fundamental weights of both load and stator currents in grid connected mode. This is essentially eliminates the use of phase locked loop, abc to dq and dq to abc transformations in GSC control as compared to conventional synchronous reference frame based vector control. Moreover, a reduced sensor based control is incorporated in the rotor side converter (RSC) control of DFIG. In this, rotor currents are estimated in stationary reference frame from sensed stator currents and stator voltages. Therefore, in totality, it reduces two current sensors and results in lower cost and less complexity of the system. To qualify the system performance, simulations are carried out under linear and nonlinear loads, constant and varying wind speed, and nonlinear unbalanced loads. The total harmonic distortions of currents and voltages, are obtained as specified in the standard of the IEEE 519. Moreover, both the grid and DFIG stator are operated at unity power factor. Finally, the system steady state and dyamic performances, are verified on a prototype developed in the laboratory.","PeriodicalId":422853,"journal":{"name":"2020 IEEE 9th Power India International Conference (PIICON)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133488947","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 : 2020-02-01DOI: 10.1109/PIICON49524.2020.9112907
A. Tomar, P. Nguyen, S. Mishra
In this paper, a single-ended primary inductor converter (SEPIC) based multi-input single-output (MISO) converter for photovoltaic (PV) based water pumping (PVWP) system is proposed. The aim of the proposed SEPIC based MISO converter is to maximize the extraction of available PV power and ensure maximum power point tracking even under the mismatching conditions i.e. effect of partial shading, clouding, dust, ageing or surround shading effect (SSE). The main contribution of this work includes enhanced PV energy extraction under mismatching conditions and thus resulting in overall improved performance of PVWP. Further, the proposed system has added advantages of adopting SEPIC topology for MISO converter such as pulsation-free output to the motor-pump system which improves the system life, reduced stress on circuit components, simple gate-circuit, and non-inverting output. In order to investigate the performance of the proposed system, the SEPIC-MISO converter based PVWP system is simulated in MATLAB environment under uniform and mismatched irradiation conditions. Simulation results verify that the application of SEPIC-MISO converter in the PV water pumping system increases the extraction of available PV as compared to conventional centralized converter based PV water pumping system.
{"title":"SEPIC-MISO Converter Based PV Water Pumping System- An Improved Performance Under Mismatching Conditions","authors":"A. Tomar, P. Nguyen, S. Mishra","doi":"10.1109/PIICON49524.2020.9112907","DOIUrl":"https://doi.org/10.1109/PIICON49524.2020.9112907","url":null,"abstract":"In this paper, a single-ended primary inductor converter (SEPIC) based multi-input single-output (MISO) converter for photovoltaic (PV) based water pumping (PVWP) system is proposed. The aim of the proposed SEPIC based MISO converter is to maximize the extraction of available PV power and ensure maximum power point tracking even under the mismatching conditions i.e. effect of partial shading, clouding, dust, ageing or surround shading effect (SSE). The main contribution of this work includes enhanced PV energy extraction under mismatching conditions and thus resulting in overall improved performance of PVWP. Further, the proposed system has added advantages of adopting SEPIC topology for MISO converter such as pulsation-free output to the motor-pump system which improves the system life, reduced stress on circuit components, simple gate-circuit, and non-inverting output. In order to investigate the performance of the proposed system, the SEPIC-MISO converter based PVWP system is simulated in MATLAB environment under uniform and mismatched irradiation conditions. Simulation results verify that the application of SEPIC-MISO converter in the PV water pumping system increases the extraction of available PV as compared to conventional centralized converter based PV water pumping system.","PeriodicalId":422853,"journal":{"name":"2020 IEEE 9th Power India International Conference (PIICON)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134012547","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 : 2020-02-01DOI: 10.1109/PIICON49524.2020.9113045
Gowramma Dekka, S. Gudey
The main feature of a Boost DC-AC inverter is to step-up the input DC voltage and convert this boosted dc voltage into desired AC voltage in a single stage without the use of output filter requirement. The loads fed can be self-governing or solar based home gadgets. The conversion efficiency is less due to more number of stages in a two stage converter. This work aims to simulate a boost DC-AC inverter feeding both linear and non-linear loads in a single stage. Here two boost converters are differentially connected across the load, in order to get a pure sinusoidal waveform as an output. It requires four switches only. Also it is low in cost and in compact size. Two controllers are presented in this work. One is a dual loop controller and other one is a PWM based sliding mode controller. Both the controllers are operated at a switching frequency of 10 kHz. A 220V, 50Hz pure sinusoidal waveform is obtained for different loads (single phase load of 1.5kW, 0.8pf lag) with less steady state error, low THD’ and convergence. Even when a non-linear load is connected both controllers work in a robust manner. It is observed that the PWM based SMC is more accurate in tracking the voltage with less steady state error and settling time. Chattering of SMC is observed through phase portrait. The simulation results are performed using power system computer aided design PSCAD/EMTDC 4.6 tool.
{"title":"Robust Controllers for a Single-Stage Boost DC-AC Inverter","authors":"Gowramma Dekka, S. Gudey","doi":"10.1109/PIICON49524.2020.9113045","DOIUrl":"https://doi.org/10.1109/PIICON49524.2020.9113045","url":null,"abstract":"The main feature of a Boost DC-AC inverter is to step-up the input DC voltage and convert this boosted dc voltage into desired AC voltage in a single stage without the use of output filter requirement. The loads fed can be self-governing or solar based home gadgets. The conversion efficiency is less due to more number of stages in a two stage converter. This work aims to simulate a boost DC-AC inverter feeding both linear and non-linear loads in a single stage. Here two boost converters are differentially connected across the load, in order to get a pure sinusoidal waveform as an output. It requires four switches only. Also it is low in cost and in compact size. Two controllers are presented in this work. One is a dual loop controller and other one is a PWM based sliding mode controller. Both the controllers are operated at a switching frequency of 10 kHz. A 220V, 50Hz pure sinusoidal waveform is obtained for different loads (single phase load of 1.5kW, 0.8pf lag) with less steady state error, low THD’ and convergence. Even when a non-linear load is connected both controllers work in a robust manner. It is observed that the PWM based SMC is more accurate in tracking the voltage with less steady state error and settling time. Chattering of SMC is observed through phase portrait. The simulation results are performed using power system computer aided design PSCAD/EMTDC 4.6 tool.","PeriodicalId":422853,"journal":{"name":"2020 IEEE 9th Power India International Conference (PIICON)","volume":"40 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131471819","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 : 2020-02-01DOI: 10.1109/PIICON49524.2020.9112893
Nupur, S. Nath
The coupled inductor single input dual output (CI-SIDO) boost converter can supply two outputs from a single input. Compared to two single input single output (SISO) converters, CI-SIDO boost converters have reduced component count, reduced losses, and increased efficiency. These converters have applications in hybrid energy systems, electric vehicles, portable electronic devices like mobiles, cameras, etc. The average currents of these converters are an important factor to be considered. The average value of the current decides the copper loss associated with the device. If the average value increases, the peak currents may increase, thus increasing the current ratings of the MOSFETs and diodes of the converter. In the CI-SIDO boost, the shifting of gate pulses is done to reduce the ripples in the inductor current. However, the shifting of gate pulses changes the inductor current waveforms. The change in waveforms changes the average values of inductor currents, input current, diode currents, and MOSFET currents. The effect of shifting gate pulses on average values of currents has not been investigated. This paper finds the effect of shifting gate pulses on the average values of currents in CI-SIDO boost converters. The analysis is verified by simulations in MATLAB/Simulink.
{"title":"Effect of Shifting Gate Pulse on Average Currents in Coupled SIDO Boost Converter","authors":"Nupur, S. Nath","doi":"10.1109/PIICON49524.2020.9112893","DOIUrl":"https://doi.org/10.1109/PIICON49524.2020.9112893","url":null,"abstract":"The coupled inductor single input dual output (CI-SIDO) boost converter can supply two outputs from a single input. Compared to two single input single output (SISO) converters, CI-SIDO boost converters have reduced component count, reduced losses, and increased efficiency. These converters have applications in hybrid energy systems, electric vehicles, portable electronic devices like mobiles, cameras, etc. The average currents of these converters are an important factor to be considered. The average value of the current decides the copper loss associated with the device. If the average value increases, the peak currents may increase, thus increasing the current ratings of the MOSFETs and diodes of the converter. In the CI-SIDO boost, the shifting of gate pulses is done to reduce the ripples in the inductor current. However, the shifting of gate pulses changes the inductor current waveforms. The change in waveforms changes the average values of inductor currents, input current, diode currents, and MOSFET currents. The effect of shifting gate pulses on average values of currents has not been investigated. This paper finds the effect of shifting gate pulses on the average values of currents in CI-SIDO boost converters. The analysis is verified by simulations in MATLAB/Simulink.","PeriodicalId":422853,"journal":{"name":"2020 IEEE 9th Power India International Conference (PIICON)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131533771","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 : 2020-02-01DOI: 10.1109/PIICON49524.2020.9112899
Ganesh Marasini, Kishan Jayasawal, Yuba Raj Purja, K. Thapa, N. Karki
Recent grid codes require grid connected Photovoltaic (PV) Systems to regulate their power fed to grid. Power curtailment through modification of Maximum Power Point Tracking (MPPT) algorithm and use of energy storage system for storing surplus power are the popular methods that have been employed to meet the requirement. When used individually, the former method does not make optimum utilization of the installed PV system while the later method presents challenge of higher average State of Charge (SoC) during periods with high insolation. This paper proposes strategy to coordinate these two methods such that the challenges associated with each are addressed while achieving the flexible active power control in a grid connected residential PV system. The proposed strategy is implemented in a 6 kW PV-Battery system in MATLAB/SIMULINK. The results depict the effectiveness of proposed control system to coordinate aforementioned solutions for flexible active power control.
{"title":"Coordination between Modified MPPT and Battery Storage System for Flexible Active Power Control of Grid Connected PV System","authors":"Ganesh Marasini, Kishan Jayasawal, Yuba Raj Purja, K. Thapa, N. Karki","doi":"10.1109/PIICON49524.2020.9112899","DOIUrl":"https://doi.org/10.1109/PIICON49524.2020.9112899","url":null,"abstract":"Recent grid codes require grid connected Photovoltaic (PV) Systems to regulate their power fed to grid. Power curtailment through modification of Maximum Power Point Tracking (MPPT) algorithm and use of energy storage system for storing surplus power are the popular methods that have been employed to meet the requirement. When used individually, the former method does not make optimum utilization of the installed PV system while the later method presents challenge of higher average State of Charge (SoC) during periods with high insolation. This paper proposes strategy to coordinate these two methods such that the challenges associated with each are addressed while achieving the flexible active power control in a grid connected residential PV system. The proposed strategy is implemented in a 6 kW PV-Battery system in MATLAB/SIMULINK. The results depict the effectiveness of proposed control system to coordinate aforementioned solutions for flexible active power control.","PeriodicalId":422853,"journal":{"name":"2020 IEEE 9th Power India International Conference (PIICON)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134328199","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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