Pub Date : 2017-12-01DOI: 10.1109/ITEC-INDIA.2017.8333844
A. K. Chauhan, M. Raghuram, Deepankar, S. Singh
The proliferation of mutually coupled Inductor to obtain high gain is getting attention for enhancing the boosting factor of impedance source converter. Reduced number of inductors required for the achieving high gain is the key feature. For mutually coupled inductor, the boosting factor is dependent on its turns ratio similar to a step up two winding transformer. To make effective turns greater than the two winding transformer, autotransformer is suggested. Therefore to achieve higher gain, the mutually coupled inductor are connected similiar like autotransformer. Using autotransformer principle, this paper proposes a quasi Mutually Coupled Active Impedance Source Converter(QMCIAS) to achieve higher gain. The QMCIAS exhibits continuous input current which makes it suitable for PV applications. To validate the theoretical proposal, a prototype is designed and tested experimentally.
{"title":"Quasi mutually coupled active impedance source converter — autotransformer type turns ratio","authors":"A. K. Chauhan, M. Raghuram, Deepankar, S. Singh","doi":"10.1109/ITEC-INDIA.2017.8333844","DOIUrl":"https://doi.org/10.1109/ITEC-INDIA.2017.8333844","url":null,"abstract":"The proliferation of mutually coupled Inductor to obtain high gain is getting attention for enhancing the boosting factor of impedance source converter. Reduced number of inductors required for the achieving high gain is the key feature. For mutually coupled inductor, the boosting factor is dependent on its turns ratio similar to a step up two winding transformer. To make effective turns greater than the two winding transformer, autotransformer is suggested. Therefore to achieve higher gain, the mutually coupled inductor are connected similiar like autotransformer. Using autotransformer principle, this paper proposes a quasi Mutually Coupled Active Impedance Source Converter(QMCIAS) to achieve higher gain. The QMCIAS exhibits continuous input current which makes it suitable for PV applications. To validate the theoretical proposal, a prototype is designed and tested experimentally.","PeriodicalId":312418,"journal":{"name":"2017 IEEE Transportation Electrification Conference (ITEC-India)","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123222376","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 : 2017-12-01DOI: 10.1109/ITEC-INDIA.2017.8333852
S. Mukherjee, S. K. Giri, Sourabh Kundu, Subrata Banerjee
In neutral-point-clamped (NPC) inverter, effective mitigation of neutral point (NP) voltage fluctuations still remains a challenging task. The popular pulse width modulation (PWM) schemes usually increase the number of switching transitions and, therefore, increase the switching loss while compensating NP voltage oscillations. In this paper, a modified modulation strategy by combining conventional sinusoidal PWM (SPWM) and double signal PWM (DSPWM) is proposed. The main attribute of the proposed strategy is the tradeoff between switching loss minimization while allowing some low-frequency oscillations in NP. By incorporating a variable bias signal, the modulation mode shifts seamlessly from SPWM to DSPWM and vice versa. Further, to mitigate existing unbalance in dc-link capacitor voltages that might have been created because of several non-idealities and dynamic operating conditions of the traction inverter for electric vehicles (EVs), an unbalance compensation signal of appropriate polarity is added with the modulating signals that satisfactorily generates compensating neutral current in the right direction. Simulation and experimental results are provided to verify the effectiveness of the proposed scheme.
{"title":"A modified PWM scheme for three-level inverters with neutral point voltage balancing for EV applications","authors":"S. Mukherjee, S. K. Giri, Sourabh Kundu, Subrata Banerjee","doi":"10.1109/ITEC-INDIA.2017.8333852","DOIUrl":"https://doi.org/10.1109/ITEC-INDIA.2017.8333852","url":null,"abstract":"In neutral-point-clamped (NPC) inverter, effective mitigation of neutral point (NP) voltage fluctuations still remains a challenging task. The popular pulse width modulation (PWM) schemes usually increase the number of switching transitions and, therefore, increase the switching loss while compensating NP voltage oscillations. In this paper, a modified modulation strategy by combining conventional sinusoidal PWM (SPWM) and double signal PWM (DSPWM) is proposed. The main attribute of the proposed strategy is the tradeoff between switching loss minimization while allowing some low-frequency oscillations in NP. By incorporating a variable bias signal, the modulation mode shifts seamlessly from SPWM to DSPWM and vice versa. Further, to mitigate existing unbalance in dc-link capacitor voltages that might have been created because of several non-idealities and dynamic operating conditions of the traction inverter for electric vehicles (EVs), an unbalance compensation signal of appropriate polarity is added with the modulating signals that satisfactorily generates compensating neutral current in the right direction. Simulation and experimental results are provided to verify the effectiveness of the proposed scheme.","PeriodicalId":312418,"journal":{"name":"2017 IEEE Transportation Electrification Conference (ITEC-India)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123543821","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 : 2017-12-01DOI: 10.1109/ITEC-INDIA.2017.8333713
Gajanan C. Jaiswal, P. A. Venikar, M. Ballal, H. Suryawanshi, D. Tutakne
In heavy industries, power curtailment due to any reason is never tolerable. Transformers are critical component in the supply of power. This paper presents a smart online condition monitoring system for industrial applications of power/distribution transformer monitoring and condition analysis. The health index (HI) of transformer is calculated based on weightage associated with healthy sensor input optimized by genetic algorithm (GA). The experimentation is performed on 15 kVA, 400/400 volts transformer. Health indices are computed by conventional numerical method and GA method. Latter offers improved weighing approach than the former. Therefore, proposed system offers development of a smart distribution transformer.
{"title":"Smart transformers for industrial applications","authors":"Gajanan C. Jaiswal, P. A. Venikar, M. Ballal, H. Suryawanshi, D. Tutakne","doi":"10.1109/ITEC-INDIA.2017.8333713","DOIUrl":"https://doi.org/10.1109/ITEC-INDIA.2017.8333713","url":null,"abstract":"In heavy industries, power curtailment due to any reason is never tolerable. Transformers are critical component in the supply of power. This paper presents a smart online condition monitoring system for industrial applications of power/distribution transformer monitoring and condition analysis. The health index (HI) of transformer is calculated based on weightage associated with healthy sensor input optimized by genetic algorithm (GA). The experimentation is performed on 15 kVA, 400/400 volts transformer. Health indices are computed by conventional numerical method and GA method. Latter offers improved weighing approach than the former. Therefore, proposed system offers development of a smart distribution transformer.","PeriodicalId":312418,"journal":{"name":"2017 IEEE Transportation Electrification Conference (ITEC-India)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131806958","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 : 2017-12-01DOI: 10.1109/ITEC-INDIA.2017.8356963
Praveen Kumar, M. Reza, R. Srivastava
Numerous techniques have been proposed till now for the reduction of cogging torque in a permanent magnet machine. Most of these techniques are mainly based on design modification of various machine parts such as tooth, slot or PM shape. However, the influence of these design modifications on the performance parameters of the machine have not been studied yet. This paper compares a few cogging torque reduction techniques taking into account the amount of cogging reduction achieved by each method. Their effect on various performance parameters of the machine such as magnetic flux density distribution in air gap, per phase induced emf and their harmonic analysis are also analyzed. The various analysis results have been obtained using Finite Element Method (FEM) based simulations.
{"title":"Effect of cogging torque minimization techniques on performance of an axial flux permanent magnet machine","authors":"Praveen Kumar, M. Reza, R. Srivastava","doi":"10.1109/ITEC-INDIA.2017.8356963","DOIUrl":"https://doi.org/10.1109/ITEC-INDIA.2017.8356963","url":null,"abstract":"Numerous techniques have been proposed till now for the reduction of cogging torque in a permanent magnet machine. Most of these techniques are mainly based on design modification of various machine parts such as tooth, slot or PM shape. However, the influence of these design modifications on the performance parameters of the machine have not been studied yet. This paper compares a few cogging torque reduction techniques taking into account the amount of cogging reduction achieved by each method. Their effect on various performance parameters of the machine such as magnetic flux density distribution in air gap, per phase induced emf and their harmonic analysis are also analyzed. The various analysis results have been obtained using Finite Element Method (FEM) based simulations.","PeriodicalId":312418,"journal":{"name":"2017 IEEE Transportation Electrification Conference (ITEC-India)","volume":"165 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122275010","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 : 2017-12-01DOI: 10.1109/ITEC-INDIA.2017.8333825
Balaji Balasubramanian, A. Huzefa
Electric vehicle range improvement is one of the key research areas, which aims to make the electric vehicle more attractive. The regeneration of the energy improves the electric vehicle range compared to the vehicle that doesn't. The vehicle regeneration percentage is highly influenced by the number of factors such as methods of braking, type of strategy, hardware used, operating drive cycle and the control strategy etc. For the initial study, an electric Light Commercial Vehicle with parallel regeneration control strategy is tested on track with the typical test drive cycles. The test results are used to create the high-fidelity vehicle regeneration model in the MATLAB /Simulink environment. The sub-modules for the other improvement methods, such as series braking strategy, proactive coasting controls are developed and its improvement in the vehicle range is also studied. The model also predicts the percentage of regeneration based on user configurable modules selected for the control methodology and the driven cycle chosen. The comprehensive model is verified with the electric LCV test results for its fidelity in the standard drive cycles.
{"title":"Development of regeneration braking model for electric vehicle range improvement","authors":"Balaji Balasubramanian, A. Huzefa","doi":"10.1109/ITEC-INDIA.2017.8333825","DOIUrl":"https://doi.org/10.1109/ITEC-INDIA.2017.8333825","url":null,"abstract":"Electric vehicle range improvement is one of the key research areas, which aims to make the electric vehicle more attractive. The regeneration of the energy improves the electric vehicle range compared to the vehicle that doesn't. The vehicle regeneration percentage is highly influenced by the number of factors such as methods of braking, type of strategy, hardware used, operating drive cycle and the control strategy etc. For the initial study, an electric Light Commercial Vehicle with parallel regeneration control strategy is tested on track with the typical test drive cycles. The test results are used to create the high-fidelity vehicle regeneration model in the MATLAB /Simulink environment. The sub-modules for the other improvement methods, such as series braking strategy, proactive coasting controls are developed and its improvement in the vehicle range is also studied. The model also predicts the percentage of regeneration based on user configurable modules selected for the control methodology and the driven cycle chosen. The comprehensive model is verified with the electric LCV test results for its fidelity in the standard drive cycles.","PeriodicalId":312418,"journal":{"name":"2017 IEEE Transportation Electrification Conference (ITEC-India)","volume":"13 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132477618","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 : 2017-12-01DOI: 10.1109/ITEC-INDIA.2017.8333858
B. R. Kumar, K. Sivakumar, S. Karunanidhi
Electric propulsion for vehicles is gaining importance day by day making it right choice for future transportation including rail, road and airways. The major drawback of Electric vehicle is the energy efficiency, which need to be improved in par with gasoline engine to make them economically viable solution for transportation. In the similar lines, this paper proposes a novel configuration of Regenerative Braking System (RBS) to improve the energy efficiency of Electric vehicle with a Dual-stator Dual-rotor BLDC motor. Complete mathematical modeling and simulation of electric vehicle is carried out with the proposed configuration and all the performance indices of the vehicle are derived. The results are very encouraging showing an increment of range by 75% for same battery pack compared to conventional configuration.
{"title":"A novel configuration of regenerative braking system to improve the energy efficiency of an electric vehicle with DualStator Dual-Rotor BLDC motor","authors":"B. R. Kumar, K. Sivakumar, S. Karunanidhi","doi":"10.1109/ITEC-INDIA.2017.8333858","DOIUrl":"https://doi.org/10.1109/ITEC-INDIA.2017.8333858","url":null,"abstract":"Electric propulsion for vehicles is gaining importance day by day making it right choice for future transportation including rail, road and airways. The major drawback of Electric vehicle is the energy efficiency, which need to be improved in par with gasoline engine to make them economically viable solution for transportation. In the similar lines, this paper proposes a novel configuration of Regenerative Braking System (RBS) to improve the energy efficiency of Electric vehicle with a Dual-stator Dual-rotor BLDC motor. Complete mathematical modeling and simulation of electric vehicle is carried out with the proposed configuration and all the performance indices of the vehicle are derived. The results are very encouraging showing an increment of range by 75% for same battery pack compared to conventional configuration.","PeriodicalId":312418,"journal":{"name":"2017 IEEE Transportation Electrification Conference (ITEC-India)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114716241","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 : 2017-12-01DOI: 10.1109/ITEC-INDIA.2017.8333831
Antony K. Peter, P. M. Amalraj, Boby Philip, J. Mathew
LLC resonant converter is an attractive choice for isolated power conversion stages, particularly because of its high efficiency. However, low power factor is an important issue in AC-DC LLC resonant converters. To improve the power factor, a boost power factor correction stage is usually required at the front end. To reduce the size and cost, both the boost and LLC stages can be controlled by the LLC switches while operating the boost converter in discontinuous conduction mode. However, line voltage variations and transient load changes can cause wide variations in the bus capacitor voltage which can lead to bus capacitor failure and unstable operation of the converter. In this paper, a simplified topology is proposed to avoid these issues. The converter can return the additional energy stored in the bus capacitor back to supply and thereby maintaining the bus capacitor voltage level. Design equations are derived for the converter and the circuit operation is verified using MAT LAB Simulink.
{"title":"Design and analysis of an AC-DC LLC resonant converter with new bus voltage stabilization technique","authors":"Antony K. Peter, P. M. Amalraj, Boby Philip, J. Mathew","doi":"10.1109/ITEC-INDIA.2017.8333831","DOIUrl":"https://doi.org/10.1109/ITEC-INDIA.2017.8333831","url":null,"abstract":"LLC resonant converter is an attractive choice for isolated power conversion stages, particularly because of its high efficiency. However, low power factor is an important issue in AC-DC LLC resonant converters. To improve the power factor, a boost power factor correction stage is usually required at the front end. To reduce the size and cost, both the boost and LLC stages can be controlled by the LLC switches while operating the boost converter in discontinuous conduction mode. However, line voltage variations and transient load changes can cause wide variations in the bus capacitor voltage which can lead to bus capacitor failure and unstable operation of the converter. In this paper, a simplified topology is proposed to avoid these issues. The converter can return the additional energy stored in the bus capacitor back to supply and thereby maintaining the bus capacitor voltage level. Design equations are derived for the converter and the circuit operation is verified using MAT LAB Simulink.","PeriodicalId":312418,"journal":{"name":"2017 IEEE Transportation Electrification Conference (ITEC-India)","volume":"01 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128272590","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 : 2017-12-01DOI: 10.1109/ITEC-INDIA.2017.8333848
M. Moghaddami, Aditya Sundararajan, A. Sarwat
A sensorless electric vehicle (EV) detection mechanism for inductive charging stations is proposed. The proposed method is based on the detection of small resonance frequency deviations from the nominal resonance frequency which are due to the presence of the vehicle. Self-tuning controllers are utilized for fast and accurate resonance frequency tracking in inductive charging systems. The proposed method uses the transmitter magnetic structure of inductive charging systems at very low power for vehicle detection and thereby, eliminates the need for sensor-based detection mechanisms. The proposed method is simulated using 2D and 3D finite element analysis (FEA) and the results are presented. The results show that in a typical inductive charging station, vehicles can be detected within 1.5 meters from the transmitter pad.
{"title":"Sensorless electric vehicle detection in inductive charging stations using self-tuning controllers","authors":"M. Moghaddami, Aditya Sundararajan, A. Sarwat","doi":"10.1109/ITEC-INDIA.2017.8333848","DOIUrl":"https://doi.org/10.1109/ITEC-INDIA.2017.8333848","url":null,"abstract":"A sensorless electric vehicle (EV) detection mechanism for inductive charging stations is proposed. The proposed method is based on the detection of small resonance frequency deviations from the nominal resonance frequency which are due to the presence of the vehicle. Self-tuning controllers are utilized for fast and accurate resonance frequency tracking in inductive charging systems. The proposed method uses the transmitter magnetic structure of inductive charging systems at very low power for vehicle detection and thereby, eliminates the need for sensor-based detection mechanisms. The proposed method is simulated using 2D and 3D finite element analysis (FEA) and the results are presented. The results show that in a typical inductive charging station, vehicles can be detected within 1.5 meters from the transmitter pad.","PeriodicalId":312418,"journal":{"name":"2017 IEEE Transportation Electrification Conference (ITEC-India)","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134007426","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 : 2017-12-01DOI: 10.1109/ITEC-INDIA.2017.8333897
M. Afshin, A. Rathore
This paper presents a new wireless inductive power transfer topology using half bridge current fed converter and a full bridge active single phase rectifier. Generally, the efficiency of inductive power transfer system is lower than the wired system due to higher power loss in Inductive Power Transfer coils. The proposed converter reduces this limitations and shows more than 4% overall efficiency improvement compare with the existing system in battery charging of low-voltage light-load electrical vehicles such as golf carts etc. This is realized by synchronous rectification technique of the vehicle side converter. Simulation results obtained from Matlab Simulink are reported to validate the analysis and performance of the proposed converter. A scale-down 250 W lab prototype is developed and experimental results are presented to verify the comparative study results
{"title":"Receiver side control for efficient inductive power transfer for vehicle recharging","authors":"M. Afshin, A. Rathore","doi":"10.1109/ITEC-INDIA.2017.8333897","DOIUrl":"https://doi.org/10.1109/ITEC-INDIA.2017.8333897","url":null,"abstract":"This paper presents a new wireless inductive power transfer topology using half bridge current fed converter and a full bridge active single phase rectifier. Generally, the efficiency of inductive power transfer system is lower than the wired system due to higher power loss in Inductive Power Transfer coils. The proposed converter reduces this limitations and shows more than 4% overall efficiency improvement compare with the existing system in battery charging of low-voltage light-load electrical vehicles such as golf carts etc. This is realized by synchronous rectification technique of the vehicle side converter. Simulation results obtained from Matlab Simulink are reported to validate the analysis and performance of the proposed converter. A scale-down 250 W lab prototype is developed and experimental results are presented to verify the comparative study results","PeriodicalId":312418,"journal":{"name":"2017 IEEE Transportation Electrification Conference (ITEC-India)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125763462","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 : 2017-12-01DOI: 10.1109/ITEC-INDIA.2017.8333836
Baiju Payyappilly, V. John
A run-time model for Li-ion battery, which can be modified or updated when the battery is operating in the circuit, based on, in-circuit extraction of required mass transport parameters is presented. The modeling approach is based on the segmented diffusion modeling and in-circuit parameter extraction. Lithium-ion batteries are finding large application demand in many areas and at different power levels. LG18650, 2.6Ah, Li-ion cell is used as the sample cell in the study. A comparison of the model behavior is made with test data obtained from an LG18650 cell. The comparative study between the model behavior and experimental data, for a constant current charge rate and pulse discharge scenario are carried out and the results are presented. An analytical approach for obtaining the expected variation in the capacitance parameter values of the run-time equivalent circuit model, with change in state of charge (SoC) of the battery is arrived at. The percentage root mean square error between the model prediction and experimental data is 0.63% for the run-time simulation at C/10 charge rate.
{"title":"Run-time simulation model for Li-ion battery using in-circuit extracted mass transport parameters","authors":"Baiju Payyappilly, V. John","doi":"10.1109/ITEC-INDIA.2017.8333836","DOIUrl":"https://doi.org/10.1109/ITEC-INDIA.2017.8333836","url":null,"abstract":"A run-time model for Li-ion battery, which can be modified or updated when the battery is operating in the circuit, based on, in-circuit extraction of required mass transport parameters is presented. The modeling approach is based on the segmented diffusion modeling and in-circuit parameter extraction. Lithium-ion batteries are finding large application demand in many areas and at different power levels. LG18650, 2.6Ah, Li-ion cell is used as the sample cell in the study. A comparison of the model behavior is made with test data obtained from an LG18650 cell. The comparative study between the model behavior and experimental data, for a constant current charge rate and pulse discharge scenario are carried out and the results are presented. An analytical approach for obtaining the expected variation in the capacitance parameter values of the run-time equivalent circuit model, with change in state of charge (SoC) of the battery is arrived at. The percentage root mean square error between the model prediction and experimental data is 0.63% for the run-time simulation at C/10 charge rate.","PeriodicalId":312418,"journal":{"name":"2017 IEEE Transportation Electrification Conference (ITEC-India)","volume":"81 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122286389","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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