Pub Date : 2017-03-26DOI: 10.1109/APEC.2017.7930763
Zhihao Fang, Dong Jiang, Zewei Shen, R. Qu
This paper gives a study on the EMI noise problem of motor drives, especially the impact of application of fast-switching SiC devices. First, the noise source model has been analyzed and the two major factors: device switching action and inverter switching frequency have been claimed. Device switching performance analysis has been done to show that the fast switching speed will generate bigger EMI noise at EMI high frequency range, ringing in the device switching can worsen the EMI noise near the ringing frequency, too. In the meantime, increasing of switching frequency of inverter can bring bigger EMI noise at EMI low frequency range. With variable switching frequency, EMI peak value can be reduced for the motor drive. But the average EMI of SiC motor drive is still bigger than Si motor drive which is with lower average switching frequency. The analysis has been supported by experimental results. The challenge of EMI should be considered for motor drive with SiC devices for advanced applications.
{"title":"Impact of application of SiC devices in motor drive on EMI","authors":"Zhihao Fang, Dong Jiang, Zewei Shen, R. Qu","doi":"10.1109/APEC.2017.7930763","DOIUrl":"https://doi.org/10.1109/APEC.2017.7930763","url":null,"abstract":"This paper gives a study on the EMI noise problem of motor drives, especially the impact of application of fast-switching SiC devices. First, the noise source model has been analyzed and the two major factors: device switching action and inverter switching frequency have been claimed. Device switching performance analysis has been done to show that the fast switching speed will generate bigger EMI noise at EMI high frequency range, ringing in the device switching can worsen the EMI noise near the ringing frequency, too. In the meantime, increasing of switching frequency of inverter can bring bigger EMI noise at EMI low frequency range. With variable switching frequency, EMI peak value can be reduced for the motor drive. But the average EMI of SiC motor drive is still bigger than Si motor drive which is with lower average switching frequency. The analysis has been supported by experimental results. The challenge of EMI should be considered for motor drive with SiC devices for advanced applications.","PeriodicalId":201289,"journal":{"name":"2017 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126659035","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 : 2017-03-26DOI: 10.1109/APEC.2017.7930674
Intae Moon, Carl Haken, Erik K. Saathoff, E. Bian, Y. Lei, Shibin Qin, Derek Chou, S. Sedig, Wonho Chung, R. Pilawa-Podgurski
This work presents a 1.3 kW, single phase, AC-DC converter with power factor correction based on a 7-level flying capacitor multilevel converter. The topology features a tradeoff of active circuit complexity for dramatic reduction on the magnetic component size, while maintaining a high efficiency. In this work, we demonstrate these features through theoretical analysis as well as a hardware prototype. It has been experimentally demonstrated that the prototype can operate at an universal AC input from 90–230 VRMS and frequencies from 47–63 Hz with an output voltage of 400 V, achieving a box power density of 1.21 W/cm3 (19.8 W/in3) and a peak efficiency of 97.6%. This prototype is the first successful demonstration of a 7-level flying capacitor multilevel boost topology as an AC-DC converter with fully implemented digital PFC control and self-powered start-up from a universal AC input.
{"title":"Design and implementation of a 1.3 kW, 7-level flying capacitor multilevel AC-DC converter with power factor correction","authors":"Intae Moon, Carl Haken, Erik K. Saathoff, E. Bian, Y. Lei, Shibin Qin, Derek Chou, S. Sedig, Wonho Chung, R. Pilawa-Podgurski","doi":"10.1109/APEC.2017.7930674","DOIUrl":"https://doi.org/10.1109/APEC.2017.7930674","url":null,"abstract":"This work presents a 1.3 kW, single phase, AC-DC converter with power factor correction based on a 7-level flying capacitor multilevel converter. The topology features a tradeoff of active circuit complexity for dramatic reduction on the magnetic component size, while maintaining a high efficiency. In this work, we demonstrate these features through theoretical analysis as well as a hardware prototype. It has been experimentally demonstrated that the prototype can operate at an universal AC input from 90–230 VRMS and frequencies from 47–63 Hz with an output voltage of 400 V, achieving a box power density of 1.21 W/cm3 (19.8 W/in3) and a peak efficiency of 97.6%. This prototype is the first successful demonstration of a 7-level flying capacitor multilevel boost topology as an AC-DC converter with fully implemented digital PFC control and self-powered start-up from a universal AC input.","PeriodicalId":201289,"journal":{"name":"2017 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125686467","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 : 2017-03-26DOI: 10.1109/APEC.2017.7931168
Yuxiao Zhang, Ke Dai, Xinwen Chen, Yong Kang, Ziwei Dai
This paper presents a hybrid compensation system with shunt active power filter(SAPF) and power capacitors. Firstly, two different load current detection points are introduced. With traditional method, hybrid compensation system is stable when capacitor current is not included in the detected load current. But, when capacitor current is included, the resonance frequency would be shifted to higher frequency which leads to SAPF self-oscillation and controller saturation. Then, an improved method that reversing part of SAPF controller current references whose spectra higher than resonance frequency is proposed. The objective of this improved method is to prevent SAPF out of control. However, harmonic mitigation is a welcome “by-product” which comes from this reversal of current reference. Terminal voltage is also detected for resonance damping which is helpful to mitigate harmonic distortion. At last, experiments results are presented to verify the proposed method.
{"title":"An improved method of SAPF for harmonic compensation and resonance damping with current detection of power capacitors and linear/nonlinear loads","authors":"Yuxiao Zhang, Ke Dai, Xinwen Chen, Yong Kang, Ziwei Dai","doi":"10.1109/APEC.2017.7931168","DOIUrl":"https://doi.org/10.1109/APEC.2017.7931168","url":null,"abstract":"This paper presents a hybrid compensation system with shunt active power filter(SAPF) and power capacitors. Firstly, two different load current detection points are introduced. With traditional method, hybrid compensation system is stable when capacitor current is not included in the detected load current. But, when capacitor current is included, the resonance frequency would be shifted to higher frequency which leads to SAPF self-oscillation and controller saturation. Then, an improved method that reversing part of SAPF controller current references whose spectra higher than resonance frequency is proposed. The objective of this improved method is to prevent SAPF out of control. However, harmonic mitigation is a welcome “by-product” which comes from this reversal of current reference. Terminal voltage is also detected for resonance damping which is helpful to mitigate harmonic distortion. At last, experiments results are presented to verify the proposed method.","PeriodicalId":201289,"journal":{"name":"2017 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130374955","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 : 2017-03-26DOI: 10.1109/APEC.2017.7931013
Yingzhuo Chen, A. Sathyanarayanan, B. Narayanasamy, Wenda Feng, F. Luo
This paper presents a comparison between two types of interleaved voltage source inverter (VSI) topologies, an Interleaved Zero-Current-Transition Inverter (IZCTI) and an In-terleaved Hard-Switching Inverter (IHSI). Zero current transition in IZCTI is presented in switching trajectory and compared with hard switching trajectory to evaluate the switching loss reduction. Then four pulse test is devised to evaluate the switching loss in zero current transition, and experimental result is shown. As for IZCTI, an inter-phase inductance selection principle is proposed based on resonating circuit. Moreover, a scaled-down version 1 kW single phase inverter prototypes of both topologies are built to demonstrate the validity of topologies and their technique. A comprehensive comparison between IZCTI and IHSI is presented in terms of efficiency, power density and EMI performance.
{"title":"Comprehensive evaluation of interleaved zero current switching inverter against interleaved hard switching inverters in terms of efficiency, power density and EMI spectrum","authors":"Yingzhuo Chen, A. Sathyanarayanan, B. Narayanasamy, Wenda Feng, F. Luo","doi":"10.1109/APEC.2017.7931013","DOIUrl":"https://doi.org/10.1109/APEC.2017.7931013","url":null,"abstract":"This paper presents a comparison between two types of interleaved voltage source inverter (VSI) topologies, an Interleaved Zero-Current-Transition Inverter (IZCTI) and an In-terleaved Hard-Switching Inverter (IHSI). Zero current transition in IZCTI is presented in switching trajectory and compared with hard switching trajectory to evaluate the switching loss reduction. Then four pulse test is devised to evaluate the switching loss in zero current transition, and experimental result is shown. As for IZCTI, an inter-phase inductance selection principle is proposed based on resonating circuit. Moreover, a scaled-down version 1 kW single phase inverter prototypes of both topologies are built to demonstrate the validity of topologies and their technique. A comprehensive comparison between IZCTI and IHSI is presented in terms of efficiency, power density and EMI performance.","PeriodicalId":201289,"journal":{"name":"2017 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"107 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133976096","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 : 2017-03-26DOI: 10.1109/APEC.2017.7931211
Feyzullah Erturk, B. Akin
This paper presents a comprehensive study on degradation monitoring of SiC MOSFETs and propose a method to detect incipient faults for early warning in power converters and smart gate drivers. During the accelerated ageing tests (power cycling) several electrical parameters are measured to analyze critical signatures and precursors for early fault detection. Among those, gate leakage current is identified as one of the most practical precursor which exhibit consistent changes throughout the aging and relatively easy to monitor. The proposed method is experimentally justified which can be integrated to a gate driver to monitor the condition of the MOSFETs. This method naturally fits to the applications which cannot tolerate interrupts caused by unpredicted failures. Due to its simple scheme and low cost, it can potentially be embedded into commercial gate drivers featuring improved reliability options.
{"title":"A method for online ageing detection in SiC MOSFETs","authors":"Feyzullah Erturk, B. Akin","doi":"10.1109/APEC.2017.7931211","DOIUrl":"https://doi.org/10.1109/APEC.2017.7931211","url":null,"abstract":"This paper presents a comprehensive study on degradation monitoring of SiC MOSFETs and propose a method to detect incipient faults for early warning in power converters and smart gate drivers. During the accelerated ageing tests (power cycling) several electrical parameters are measured to analyze critical signatures and precursors for early fault detection. Among those, gate leakage current is identified as one of the most practical precursor which exhibit consistent changes throughout the aging and relatively easy to monitor. The proposed method is experimentally justified which can be integrated to a gate driver to monitor the condition of the MOSFETs. This method naturally fits to the applications which cannot tolerate interrupts caused by unpredicted failures. Due to its simple scheme and low cost, it can potentially be embedded into commercial gate drivers featuring improved reliability options.","PeriodicalId":201289,"journal":{"name":"2017 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"154 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116207912","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 : 2017-03-26DOI: 10.1109/APEC.2017.7930816
Chun-Sing Cheng, H. Chung, Ricky Wing-hong Lau
Derivation of a time-domain model for predicting the voltage-current characteristics of lithium batteries under arbitrary charging and discharging current profiles will be presented. The methodology is based on firstly formulating the generic time-domain voltage-current characteristics of a constant phase element (CPE) unit and then applying the model for multiple CPEs in the battery electrical model. A decimation technique will be applied to minimize the computational burden, and the numerical stability of the entire model will be studied. Finally, the accuracy of the developed time-domain model is verified by comparing the results with the measurement results obtained from a hardware testbed and with the simulation results obtained from the models with multiple parallel resistor-capacitor units.
{"title":"Time-domain modeling of constant phase element for simulation of lithium batteries under arbitrary charging and discharging current profiles","authors":"Chun-Sing Cheng, H. Chung, Ricky Wing-hong Lau","doi":"10.1109/APEC.2017.7930816","DOIUrl":"https://doi.org/10.1109/APEC.2017.7930816","url":null,"abstract":"Derivation of a time-domain model for predicting the voltage-current characteristics of lithium batteries under arbitrary charging and discharging current profiles will be presented. The methodology is based on firstly formulating the generic time-domain voltage-current characteristics of a constant phase element (CPE) unit and then applying the model for multiple CPEs in the battery electrical model. A decimation technique will be applied to minimize the computational burden, and the numerical stability of the entire model will be studied. Finally, the accuracy of the developed time-domain model is verified by comparing the results with the measurement results obtained from a hardware testbed and with the simulation results obtained from the models with multiple parallel resistor-capacitor units.","PeriodicalId":201289,"journal":{"name":"2017 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133732970","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 : 2017-03-26DOI: 10.1109/APEC.2017.7930757
Zhe Zhang, Yiqi Liu, A. Bazzi
Scalar control has been the most popular control method implemented in induction machine drive systems. This paper presents an enhanced open-loop Volts-per-Hertz (V/f) controller aimed at strengthening the magnetizing flux of an induction machine when operated below its rated frequency. Instead of using the traditional constant V/f based on the idealized approximate steady-state machine model and/or simple stator voltage drop compensation, this method derives a new V/f ratio from a more accurate steady-state model which takes core loss into consideration as well as the stator voltage drop. In addition, a frequency boost strategy is introduced with the proposed V/f ratio for slip compensation. The analytically derived V/f ratio under different frequencies at rated load is then compared to experimentally obtained data to verify its effectiveness.
{"title":"An improved high-performance open-loop V/f control method for induction machines","authors":"Zhe Zhang, Yiqi Liu, A. Bazzi","doi":"10.1109/APEC.2017.7930757","DOIUrl":"https://doi.org/10.1109/APEC.2017.7930757","url":null,"abstract":"Scalar control has been the most popular control method implemented in induction machine drive systems. This paper presents an enhanced open-loop Volts-per-Hertz (V/f) controller aimed at strengthening the magnetizing flux of an induction machine when operated below its rated frequency. Instead of using the traditional constant V/f based on the idealized approximate steady-state machine model and/or simple stator voltage drop compensation, this method derives a new V/f ratio from a more accurate steady-state model which takes core loss into consideration as well as the stator voltage drop. In addition, a frequency boost strategy is introduced with the proposed V/f ratio for slip compensation. The analytically derived V/f ratio under different frequencies at rated load is then compared to experimentally obtained data to verify its effectiveness.","PeriodicalId":201289,"journal":{"name":"2017 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132962023","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 : 2017-03-26DOI: 10.1109/APEC.2017.7930866
Menxi Xie, Canyan Zhu, Yong Yang, H. Wen
It is vital to track voltage phase to synchronization control for grid-connected power converters. For unbalanced three-phase grid voltages, the PD output of conventional SRF-PLL contains disturbances oscillating at frequency of double fundamental, which introduced steady-state phase error for detecting positive sequence at fundamental frequency. To solve this problem, this paper presents a new differentiator decouple filter (DDF) applied in-loop of SRF-PLL. The DDF uses simple mathematical operation to separate the dc terms of PD output in synchronous reference frame The filter has been well addressed in details, especially the digital implementation of differentiator based on second order generalized integrator (SOGI). As a result, the loop filter parameter tuning makes it possible for high bandwidth of the SRF-PLL. The simulation of proposed SRF-PLL was shown using Matlab/Simulink, and test results show that the steady state error of detected phase angle is rather small, and faster transient response is achieved thanks for high loop bandwidth. Also, the experiments results based on TMS320F28335 are presented to verify the theoretical discussion.
{"title":"SRF-PLL with in-loop differentiator decouple filter for unbalanced three-phase systems","authors":"Menxi Xie, Canyan Zhu, Yong Yang, H. Wen","doi":"10.1109/APEC.2017.7930866","DOIUrl":"https://doi.org/10.1109/APEC.2017.7930866","url":null,"abstract":"It is vital to track voltage phase to synchronization control for grid-connected power converters. For unbalanced three-phase grid voltages, the PD output of conventional SRF-PLL contains disturbances oscillating at frequency of double fundamental, which introduced steady-state phase error for detecting positive sequence at fundamental frequency. To solve this problem, this paper presents a new differentiator decouple filter (DDF) applied in-loop of SRF-PLL. The DDF uses simple mathematical operation to separate the dc terms of PD output in synchronous reference frame The filter has been well addressed in details, especially the digital implementation of differentiator based on second order generalized integrator (SOGI). As a result, the loop filter parameter tuning makes it possible for high bandwidth of the SRF-PLL. The simulation of proposed SRF-PLL was shown using Matlab/Simulink, and test results show that the steady state error of detected phase angle is rather small, and faster transient response is achieved thanks for high loop bandwidth. Also, the experiments results based on TMS320F28335 are presented to verify the theoretical discussion.","PeriodicalId":201289,"journal":{"name":"2017 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"246 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133227183","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 : 2017-03-26DOI: 10.1109/APEC.2017.7930610
Kevin Martin, P. Miaja, D. G. Lamar, J. Sebastián, S. Álvarez
This work analyzes different options to implement low power consumption in Switching Mode Power Supplies (SMPSs) with Power Factor Correction (PFC) when they are in standby mode. The standard SMPSs for power levels higher than 100 W are made up of two stages: a classical PFC stage based on a Boost Converter operating in the Continuous Conduction Mode and a second stage based on any type of isolated DC-DC converter. The value of the resistive sensors needed by the PFC control stage determines a standby consumption higher than 0.5 W if the power supply has to be designed to operate in the Universal Range of line voltages. This fact makes it very difficult to comply with European Ecodesign Regulations. To overcome this problem, several solutions are proposed and analyzed in this paper, the most promising being implemented in a real SMPS prototype.
{"title":"Implementing low power consumption in standby mode in the case of power supplies with power factor correction","authors":"Kevin Martin, P. Miaja, D. G. Lamar, J. Sebastián, S. Álvarez","doi":"10.1109/APEC.2017.7930610","DOIUrl":"https://doi.org/10.1109/APEC.2017.7930610","url":null,"abstract":"This work analyzes different options to implement low power consumption in Switching Mode Power Supplies (SMPSs) with Power Factor Correction (PFC) when they are in standby mode. The standard SMPSs for power levels higher than 100 W are made up of two stages: a classical PFC stage based on a Boost Converter operating in the Continuous Conduction Mode and a second stage based on any type of isolated DC-DC converter. The value of the resistive sensors needed by the PFC control stage determines a standby consumption higher than 0.5 W if the power supply has to be designed to operate in the Universal Range of line voltages. This fact makes it very difficult to comply with European Ecodesign Regulations. To overcome this problem, several solutions are proposed and analyzed in this paper, the most promising being implemented in a real SMPS prototype.","PeriodicalId":201289,"journal":{"name":"2017 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125860046","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 : 2017-03-26DOI: 10.1109/APEC.2017.7930850
Jufeng Yang, Bing Xia, Yunlong Shang, Wenxin Huang, C. Mi
This paper presents an improved battery modeling approach based on typical operating scenarios in hybrid electric vehicles (HEVs) and pure electric vehicles (EVs). Compared with the conventional modeling methods, the proposed method takes both the constant-current (CC) charging and dynamic driving scenarios into account, and two separate sets of parameters are estimated through different periods of the pulse-rest test. For the CC charging scenario, data from the pulse-charging period are employed in parameter estimation. For the dynamic driving scenario, data from the rest period are employed, and the length of the fitted dataset is determined by the spectrum analysis of the load current. In addition, the initial voltage expressions of the RC networks in the fitting function are improved to ensure a higher model fidelity. The feasibility of the developed modeling approach is experimentally verified on a 40 Ah LiNMC battery. Experimental results validate the advantages of the proposed approach.
{"title":"Improved battery modeling approach considering operating scenarios for HEV/EV applications","authors":"Jufeng Yang, Bing Xia, Yunlong Shang, Wenxin Huang, C. Mi","doi":"10.1109/APEC.2017.7930850","DOIUrl":"https://doi.org/10.1109/APEC.2017.7930850","url":null,"abstract":"This paper presents an improved battery modeling approach based on typical operating scenarios in hybrid electric vehicles (HEVs) and pure electric vehicles (EVs). Compared with the conventional modeling methods, the proposed method takes both the constant-current (CC) charging and dynamic driving scenarios into account, and two separate sets of parameters are estimated through different periods of the pulse-rest test. For the CC charging scenario, data from the pulse-charging period are employed in parameter estimation. For the dynamic driving scenario, data from the rest period are employed, and the length of the fitted dataset is determined by the spectrum analysis of the load current. In addition, the initial voltage expressions of the RC networks in the fitting function are improved to ensure a higher model fidelity. The feasibility of the developed modeling approach is experimentally verified on a 40 Ah LiNMC battery. Experimental results validate the advantages of the proposed approach.","PeriodicalId":201289,"journal":{"name":"2017 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122020438","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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