Pub Date : 2021-11-13DOI: 10.1109/peas53589.2021.9628472
Ying Li, X. Ruan
Very high frequency Class E dc-dc converter has been widely investigated for its simple structure and easy realization of soft switching. Constant switching frequency (CSF) ON-OFF control is usually employed to regulate the converter output voltage for the advantage of excellent dynamic performance and easy parameter optimization. However, it is found that with CSF ON-OFF control, the input power of the Class E dc-dc converter during ON mode increases with the increase of the input voltage, leading to increased modulation frequency and thus diminishing the conversion efficiency. In this paper, a switch-controlled capacitor (SCC) modulated Class E dc-dc converter is presented to solve the efficiency depletion problem under high input voltage. With SCC, the resonant branch impedance of the Class E dc-dc converter is increased to reduce the input power under high input voltages, which helps reduce the modulation frequency and improve the conversion efficiency. A 10-W, 20-MHz Class E dc-dc converter is simulated to verify the feasibility and the advantages of the proposed control scheme.
{"title":"Constant Switching Frequency Controlled Class E DC-DC Converter with Wide Input Voltage Range","authors":"Ying Li, X. Ruan","doi":"10.1109/peas53589.2021.9628472","DOIUrl":"https://doi.org/10.1109/peas53589.2021.9628472","url":null,"abstract":"Very high frequency Class E dc-dc converter has been widely investigated for its simple structure and easy realization of soft switching. Constant switching frequency (CSF) ON-OFF control is usually employed to regulate the converter output voltage for the advantage of excellent dynamic performance and easy parameter optimization. However, it is found that with CSF ON-OFF control, the input power of the Class E dc-dc converter during ON mode increases with the increase of the input voltage, leading to increased modulation frequency and thus diminishing the conversion efficiency. In this paper, a switch-controlled capacitor (SCC) modulated Class E dc-dc converter is presented to solve the efficiency depletion problem under high input voltage. With SCC, the resonant branch impedance of the Class E dc-dc converter is increased to reduce the input power under high input voltages, which helps reduce the modulation frequency and improve the conversion efficiency. A 10-W, 20-MHz Class E dc-dc converter is simulated to verify the feasibility and the advantages of the proposed control scheme.","PeriodicalId":268264,"journal":{"name":"2021 IEEE 1st International Power Electronics and Application Symposium (PEAS)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129690558","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 : 2021-11-13DOI: 10.1109/peas53589.2021.9628663
Zhibo Zhu, Xingfa Liu, Wei Yan, Yang Zhao, Wanning Bai
Switched-mode power supply (SMPS) has been widely used in power electronic equipment. The radiated electromagnetic interference (EMI) in complex external environment seriously affects the normal operation of the SMPS, which can be suppressed by adding a metal shell outside the SMPS. However, in order to meet the requirement of the heat dissipation, holes are opened in the metal shell, and the external radiated EMI enters into the shell through the holes, reducing the shielding effectiveness (SE) of the shell. In this paper, a new method to optimize the shielding effectiveness of the switched-mode power supply based on particle swarm optimization (PSO) algorithm is proposed. The influence of the metal shell opening mode on shielding effectiveness is studied, and the simulation results verify the effectiveness of the proposed method. In addition, the position arrangement of the hole array on the shell is studied, which further improves the shielding effectiveness of the SMPS.
{"title":"Research on Shielding Effectiveness of Switched-Mode Power Supply based on Particle Swarm Optimization Algorithm","authors":"Zhibo Zhu, Xingfa Liu, Wei Yan, Yang Zhao, Wanning Bai","doi":"10.1109/peas53589.2021.9628663","DOIUrl":"https://doi.org/10.1109/peas53589.2021.9628663","url":null,"abstract":"Switched-mode power supply (SMPS) has been widely used in power electronic equipment. The radiated electromagnetic interference (EMI) in complex external environment seriously affects the normal operation of the SMPS, which can be suppressed by adding a metal shell outside the SMPS. However, in order to meet the requirement of the heat dissipation, holes are opened in the metal shell, and the external radiated EMI enters into the shell through the holes, reducing the shielding effectiveness (SE) of the shell. In this paper, a new method to optimize the shielding effectiveness of the switched-mode power supply based on particle swarm optimization (PSO) algorithm is proposed. The influence of the metal shell opening mode on shielding effectiveness is studied, and the simulation results verify the effectiveness of the proposed method. In addition, the position arrangement of the hole array on the shell is studied, which further improves the shielding effectiveness of the SMPS.","PeriodicalId":268264,"journal":{"name":"2021 IEEE 1st International Power Electronics and Application Symposium (PEAS)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115868862","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 : 2021-11-13DOI: 10.1109/peas53589.2021.9628623
W. Tian, Lei Wang, Jiawen Yu, S. Liao, Qian Zhou
Current-tripler-rectifier ZVS three-phase full-bridge DC/DC converter (CTR-ZVS-FB converter) is a potential alternative for high-power applications due to its desirable characteristics of compact, efficient, high current capability, etc. In some cases, the failure of the power switch results in a converter shutdown and affects the reliability of the entire system. Therefore, this article presents a new remedial fault-tolerant operation for the CTR-ZVS-FB converter. During the remedial working mode, the inductor current, ZVS Soft-Switching Regions, and loss of duty cycle are analyzed. Moreover, this paper simulates the heavy loads of the converter under the remedial fault-tolerant operation. Results convincingly indicate that the proposed control is efficient and capable of running the system during the faults with a slight increase in the inductor current.
{"title":"Remedial Fault-Tolerant Operation of a Current-Tripler-Rectifier ZVS Three-Phase Full-Bridge DC/DC Converter","authors":"W. Tian, Lei Wang, Jiawen Yu, S. Liao, Qian Zhou","doi":"10.1109/peas53589.2021.9628623","DOIUrl":"https://doi.org/10.1109/peas53589.2021.9628623","url":null,"abstract":"Current-tripler-rectifier ZVS three-phase full-bridge DC/DC converter (CTR-ZVS-FB converter) is a potential alternative for high-power applications due to its desirable characteristics of compact, efficient, high current capability, etc. In some cases, the failure of the power switch results in a converter shutdown and affects the reliability of the entire system. Therefore, this article presents a new remedial fault-tolerant operation for the CTR-ZVS-FB converter. During the remedial working mode, the inductor current, ZVS Soft-Switching Regions, and loss of duty cycle are analyzed. Moreover, this paper simulates the heavy loads of the converter under the remedial fault-tolerant operation. Results convincingly indicate that the proposed control is efficient and capable of running the system during the faults with a slight increase in the inductor current.","PeriodicalId":268264,"journal":{"name":"2021 IEEE 1st International Power Electronics and Application Symposium (PEAS)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116193950","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 : 2021-11-13DOI: 10.1109/peas53589.2021.9628467
Xuanbo Wang, Wen Wang, Xiong Gao
Based on the two aspects of DC current prediction and critical extinction voltage-time area, the existing constant extinction angle control is improved. Assuming DC current Id changes at a constant rate, and the rate of DC current change corresponding to the beginning of commutation is taken as the rate of DC current change during the entire commutation period, that is, dId/dt. At the same time, considering the influence of the commutation voltage change on the extinction angle γ in the transient process, the concept of the critical extinction voltage time area is introduced, and the condition that the extinction voltage time area should meet the critical extinction area during transient operation is derived. The γ control reference value γref expression is adjusted, and the trigger angle α value is obtained by combining the DC current prediction. In this way, when the system is operating in a transient process, the trigger angle α can be adaptively adjusted by comprehensively considering the change of Id and the change of the commutation voltage. The simulation shows that the improved control strategy effectively reduces the probability of commutation failure and improves the stability of the AC bus voltage.
{"title":"Predictive Constant Extinction Angle Control of LCC-HVDC Receiving End Converter","authors":"Xuanbo Wang, Wen Wang, Xiong Gao","doi":"10.1109/peas53589.2021.9628467","DOIUrl":"https://doi.org/10.1109/peas53589.2021.9628467","url":null,"abstract":"Based on the two aspects of DC current prediction and critical extinction voltage-time area, the existing constant extinction angle control is improved. Assuming DC current Id changes at a constant rate, and the rate of DC current change corresponding to the beginning of commutation is taken as the rate of DC current change during the entire commutation period, that is, dId/dt. At the same time, considering the influence of the commutation voltage change on the extinction angle γ in the transient process, the concept of the critical extinction voltage time area is introduced, and the condition that the extinction voltage time area should meet the critical extinction area during transient operation is derived. The γ control reference value γref expression is adjusted, and the trigger angle α value is obtained by combining the DC current prediction. In this way, when the system is operating in a transient process, the trigger angle α can be adaptively adjusted by comprehensively considering the change of Id and the change of the commutation voltage. The simulation shows that the improved control strategy effectively reduces the probability of commutation failure and improves the stability of the AC bus voltage.","PeriodicalId":268264,"journal":{"name":"2021 IEEE 1st International Power Electronics and Application Symposium (PEAS)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116308430","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 : 2021-11-13DOI: 10.1109/peas53589.2021.9628396
Jin Zhang, Jianpeng Wang, Zhenjun Zhang, Laili Wang, Yi Liu, Yuwei Wu
With the wide application of power semiconductor devices in severe working conditions, the reliability and lifetime estimation of power semiconductor devices have become the research hotspot. Power cycling test is a significant method to study the reliability issues. This paper first analyzes the existing methods and then proposes a new power cycling method which considers not only realistic electrical conditions but also the thermal stress from different regions. Firstly, rainflow algorithm is used to extract the temperature cycles with large amplitude. Next, the junction temperature cycles and case temperature cycles are matched using integer programming algorithm and modified by means of equivalent substitution. At the same time, a method to control the case temperature and the junction temperature simultaneously is proposed. Afterwards, modified rainflow reconstruction algorithm is used to combine these matched cycles to temperature arrays. Finally, test load profile is formed. An electric vehicle motor drive system based on the Worldwide Harmonized Light Vehicle Test Procedure mission profile is used to verify the proposed method. This method can simultaneously stress the bonding wire and the solder layer, which provides a new way to access the reliability of power devices in real application.
{"title":"Power cycling method of power semiconductor devices based on mission profiles","authors":"Jin Zhang, Jianpeng Wang, Zhenjun Zhang, Laili Wang, Yi Liu, Yuwei Wu","doi":"10.1109/peas53589.2021.9628396","DOIUrl":"https://doi.org/10.1109/peas53589.2021.9628396","url":null,"abstract":"With the wide application of power semiconductor devices in severe working conditions, the reliability and lifetime estimation of power semiconductor devices have become the research hotspot. Power cycling test is a significant method to study the reliability issues. This paper first analyzes the existing methods and then proposes a new power cycling method which considers not only realistic electrical conditions but also the thermal stress from different regions. Firstly, rainflow algorithm is used to extract the temperature cycles with large amplitude. Next, the junction temperature cycles and case temperature cycles are matched using integer programming algorithm and modified by means of equivalent substitution. At the same time, a method to control the case temperature and the junction temperature simultaneously is proposed. Afterwards, modified rainflow reconstruction algorithm is used to combine these matched cycles to temperature arrays. Finally, test load profile is formed. An electric vehicle motor drive system based on the Worldwide Harmonized Light Vehicle Test Procedure mission profile is used to verify the proposed method. This method can simultaneously stress the bonding wire and the solder layer, which provides a new way to access the reliability of power devices in real application.","PeriodicalId":268264,"journal":{"name":"2021 IEEE 1st International Power Electronics and Application Symposium (PEAS)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128802244","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 : 2021-11-13DOI: 10.1109/peas53589.2021.9628802
Chengzi Yang, Haoyuan Jin, Huaqing Li, Longyang Yu, Y. Pei, Laili Wang
The extended-phase-shift (EPS) control is proposed to decrease the power circulating flow (PCF) in dual-active-bridge (DAB) DC-DC converters, further improve the efficiency. However, if the calculation of the outer phase shift angle D1 is not accurate due to the complex working conditions of DAB, there will still be a certain amount of power backflow or hard switching states, which will affect the efficiency of the converter. In this paper, a minimum PFC control method based on reverse conduction state detection for DAB converter with EPS control is proposed. According to the conduction state of the body diodes, D1 can be adjusted to the best value which ensured the minimum PCF and ZVS turn-on of the DAB converter. Experimental results show that the proposed method can effectively control the PCF at its minimum point, and all the switches are working under ZVS conditions, thereby the efficiency of the DAB converter is optimized.
{"title":"A Minimum Power Circulating Flow and Optimal Dead-time Control Method for GaN Based DAB Converter with EPS Control","authors":"Chengzi Yang, Haoyuan Jin, Huaqing Li, Longyang Yu, Y. Pei, Laili Wang","doi":"10.1109/peas53589.2021.9628802","DOIUrl":"https://doi.org/10.1109/peas53589.2021.9628802","url":null,"abstract":"The extended-phase-shift (EPS) control is proposed to decrease the power circulating flow (PCF) in dual-active-bridge (DAB) DC-DC converters, further improve the efficiency. However, if the calculation of the outer phase shift angle D1 is not accurate due to the complex working conditions of DAB, there will still be a certain amount of power backflow or hard switching states, which will affect the efficiency of the converter. In this paper, a minimum PFC control method based on reverse conduction state detection for DAB converter with EPS control is proposed. According to the conduction state of the body diodes, D1 can be adjusted to the best value which ensured the minimum PCF and ZVS turn-on of the DAB converter. Experimental results show that the proposed method can effectively control the PCF at its minimum point, and all the switches are working under ZVS conditions, thereby the efficiency of the DAB converter is optimized.","PeriodicalId":268264,"journal":{"name":"2021 IEEE 1st International Power Electronics and Application Symposium (PEAS)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133670380","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 : 2021-11-13DOI: 10.1109/peas53589.2021.9628761
L. Cao, Weijie Dong, Xiaoying Han
This paper designs an ultrasonic isolated wireless power supply for the gate drive circuit of multi-level converter H-bridge inverter, basing on ultrasonic wireless power transmission (USWPT) technology. Firstly, COMSOL model is used to simulate the coupling transmission medium and its size. Then loss circuit model is used to calculate and predict the USWPT receiving side output voltage. Finally, the experiment proves that the resonant compensation circuit designed can effectively improve the output power of USWPT system. The designed ultrasonic isolated wireless power supply can stably provide about 15V DC voltage for 180 Ω~250 Ω load when it works at 43.7 kHz.
{"title":"Design of Ultrasonic Isolation Wireless Power Supply for Gate Drive Circuit of Module Multi-level Converter","authors":"L. Cao, Weijie Dong, Xiaoying Han","doi":"10.1109/peas53589.2021.9628761","DOIUrl":"https://doi.org/10.1109/peas53589.2021.9628761","url":null,"abstract":"This paper designs an ultrasonic isolated wireless power supply for the gate drive circuit of multi-level converter H-bridge inverter, basing on ultrasonic wireless power transmission (USWPT) technology. Firstly, COMSOL model is used to simulate the coupling transmission medium and its size. Then loss circuit model is used to calculate and predict the USWPT receiving side output voltage. Finally, the experiment proves that the resonant compensation circuit designed can effectively improve the output power of USWPT system. The designed ultrasonic isolated wireless power supply can stably provide about 15V DC voltage for 180 Ω~250 Ω load when it works at 43.7 kHz.","PeriodicalId":268264,"journal":{"name":"2021 IEEE 1st International Power Electronics and Application Symposium (PEAS)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130755379","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 : 2021-11-13DOI: 10.1109/peas53589.2021.9628490
Xu Zhao, Yu Zhang, Qingxin Guan
The voltage balancing of neutral point and two flying capacitors is a great challenge in five-level Buck/Boost converter. Based on the principle of phase shift control and the capacitor voltage regulation, the influence of the neutral point voltage regulation on the flying capacitor voltage is first analyzed. Then, a synchronous phase shifting decoupling control method is proposed, which makes the capacitor voltage regulation almost independent of the neutral point voltage and eliminates the coupling of the system. Based on this, the quantitative relationship between phase shift ratio and the increase of neutral point voltage and flying capacitor voltage is derived. This method makes the voltage balance system immune to the inductor current and carrier waveform, the output voltage is not affected by the capacitor voltage regulation, which is conducive to the design and analysis of the controller. The experimental results based on the 1.5 kW prototype verify the analysis results and the excellent voltage balance performance.
{"title":"A Balancing Control Method for Flying Capacitors in Five-Level Buck/Boost Converter with Synchronous Phase Shifting Decoupling","authors":"Xu Zhao, Yu Zhang, Qingxin Guan","doi":"10.1109/peas53589.2021.9628490","DOIUrl":"https://doi.org/10.1109/peas53589.2021.9628490","url":null,"abstract":"The voltage balancing of neutral point and two flying capacitors is a great challenge in five-level Buck/Boost converter. Based on the principle of phase shift control and the capacitor voltage regulation, the influence of the neutral point voltage regulation on the flying capacitor voltage is first analyzed. Then, a synchronous phase shifting decoupling control method is proposed, which makes the capacitor voltage regulation almost independent of the neutral point voltage and eliminates the coupling of the system. Based on this, the quantitative relationship between phase shift ratio and the increase of neutral point voltage and flying capacitor voltage is derived. This method makes the voltage balance system immune to the inductor current and carrier waveform, the output voltage is not affected by the capacitor voltage regulation, which is conducive to the design and analysis of the controller. The experimental results based on the 1.5 kW prototype verify the analysis results and the excellent voltage balance performance.","PeriodicalId":268264,"journal":{"name":"2021 IEEE 1st International Power Electronics and Application Symposium (PEAS)","volume":"257 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115972335","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}
This paper presents an underwater wireless power and data transfer (WPDT) system with the shared channel. The power and signal could be transferred with the same channel based on the time division multiplexing theory. In one switching cycle, the power is transferred in the first half switching cycle and the signal is transferred in the second half switching cycle. The signal is modulated with the frequency-shift keying (FSK) method. The frequency for the power delivery is set as 240 kHz. With the FSK modulation method, the frequencies of two carriers are set 10 MHz and 2 MHz for signal transmission, respectively. The glass tank experimental platform is constructed with the 35‰ salinity water. The simulated and experimental results verify the theory analysis and the calculation very well.
{"title":"Underwater wireless power and data transfer system with shared channel","authors":"Lei Yang, Xiaojie Li, Yuanqi Zhang, Baoxiang Feng, Jiale Jian, Guoning Zhao","doi":"10.1109/peas53589.2021.9628784","DOIUrl":"https://doi.org/10.1109/peas53589.2021.9628784","url":null,"abstract":"This paper presents an underwater wireless power and data transfer (WPDT) system with the shared channel. The power and signal could be transferred with the same channel based on the time division multiplexing theory. In one switching cycle, the power is transferred in the first half switching cycle and the signal is transferred in the second half switching cycle. The signal is modulated with the frequency-shift keying (FSK) method. The frequency for the power delivery is set as 240 kHz. With the FSK modulation method, the frequencies of two carriers are set 10 MHz and 2 MHz for signal transmission, respectively. The glass tank experimental platform is constructed with the 35‰ salinity water. The simulated and experimental results verify the theory analysis and the calculation very well.","PeriodicalId":268264,"journal":{"name":"2021 IEEE 1st International Power Electronics and Application Symposium (PEAS)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117150516","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}
In this paper, a new type of high specific energy ratio power storage element supercapacitor battery is studied. In order to accurately estimate the state of charge of the battery, based on the in-depth analysis of the working principle of the supercapacitor battery, an equivalent circuit model describing the charging and discharging characteristics and relaxation characteristics of the supercapacitor battery is proposed and established. Firstly, the components of supercapacitor battery are modeled respectively. Then the overall equivalent model is constructed. Secondly, the identification method of equivalent model parameters is discussed, and the online identification method of recursive least squares (RLS) is used for parameter identification. The supercapacitor battery was tested on the charging and discharging experimental platform according to relevant standards. Finally, the established model is built and simulated in Matlab/Simulink using experimental data.
{"title":"Modeling and Parameter Identification of Supercapacitor Battery","authors":"Huaze Shi, Wen Wang, Qiong Liu, Meina Zhou, Pan Lu, Xiong Gao","doi":"10.1109/peas53589.2021.9628639","DOIUrl":"https://doi.org/10.1109/peas53589.2021.9628639","url":null,"abstract":"In this paper, a new type of high specific energy ratio power storage element supercapacitor battery is studied. In order to accurately estimate the state of charge of the battery, based on the in-depth analysis of the working principle of the supercapacitor battery, an equivalent circuit model describing the charging and discharging characteristics and relaxation characteristics of the supercapacitor battery is proposed and established. Firstly, the components of supercapacitor battery are modeled respectively. Then the overall equivalent model is constructed. Secondly, the identification method of equivalent model parameters is discussed, and the online identification method of recursive least squares (RLS) is used for parameter identification. The supercapacitor battery was tested on the charging and discharging experimental platform according to relevant standards. Finally, the established model is built and simulated in Matlab/Simulink using experimental data.","PeriodicalId":268264,"journal":{"name":"2021 IEEE 1st International Power Electronics and Application Symposium (PEAS)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114175640","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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