Pub Date : 2023-05-22DOI: 10.23919/ICPE2023-ECCEAsia54778.2023.10213464
Kelly Fernandez, R. Pilawa-Podgurski
Resonant hybrid switched-capacitor converters (ReSCs) have the ability to achieve high efficiencies, power densities, and high power-handling capabilities. However, ReSCs have yet to be widely explored in high-voltage (HV) step-up application areas. In this work, we attempt to bridge the gap between ReSCs and the HV step-up application space by proposing a 1-to-10 step-up cascaded series-parallel (CaSP) converter. The principles of operation and functionality of the circuit are discussed and are validated with a hardware prototype. Experimental results up to 300 W and 350 V including efficiency and load regulation measurements and demonstration of zero-current switching (ZCS) are provided.
{"title":"A 1-to-10 Fixed-Ratio Step-up Multi-Resonant Cascaded Series-Parallel (CaSP) Switched-Capacitor Converter with Zero-Current Switching","authors":"Kelly Fernandez, R. Pilawa-Podgurski","doi":"10.23919/ICPE2023-ECCEAsia54778.2023.10213464","DOIUrl":"https://doi.org/10.23919/ICPE2023-ECCEAsia54778.2023.10213464","url":null,"abstract":"Resonant hybrid switched-capacitor converters (ReSCs) have the ability to achieve high efficiencies, power densities, and high power-handling capabilities. However, ReSCs have yet to be widely explored in high-voltage (HV) step-up application areas. In this work, we attempt to bridge the gap between ReSCs and the HV step-up application space by proposing a 1-to-10 step-up cascaded series-parallel (CaSP) converter. The principles of operation and functionality of the circuit are discussed and are validated with a hardware prototype. Experimental results up to 300 W and 350 V including efficiency and load regulation measurements and demonstration of zero-current switching (ZCS) are provided.","PeriodicalId":151155,"journal":{"name":"2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131080033","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 the concept design, material reliability, and thermal management of the direct oil-cooling automotive power module we developed. This type of module faces several significant challenges compared to the conventional water-cooling power module, such as copper lead corrosion, rubber swelling, and high thermal resistance. We therefore prototyped a double-side direct oil-cooling power module to investigate the reliability and thermal resistance performance. Our findings showed that mineral oil-based coolant and insulating ester oil have outstanding reliability and compatibility to power module materials. A 31% reduction of thermal resistance at 10L/min 25°C was obtained, which is much lower than even referenced double-side water-cooling power modules, thus demonstrating the feasibility of direct oil-cooling automotive power electronics.
{"title":"Double-Side Direct Oil-Cooling Automotive Power Module: from Material Compatibility to Thermal Management","authors":"Tilden Chen, Takeshi Tokuyama, Akihiro Namba, Takahito Muraki, Kyota Asai, Takahiro Araki, Shintaro Tanaka","doi":"10.23919/ICPE2023-ECCEAsia54778.2023.10213969","DOIUrl":"https://doi.org/10.23919/ICPE2023-ECCEAsia54778.2023.10213969","url":null,"abstract":"This paper presents the concept design, material reliability, and thermal management of the direct oil-cooling automotive power module we developed. This type of module faces several significant challenges compared to the conventional water-cooling power module, such as copper lead corrosion, rubber swelling, and high thermal resistance. We therefore prototyped a double-side direct oil-cooling power module to investigate the reliability and thermal resistance performance. Our findings showed that mineral oil-based coolant and insulating ester oil have outstanding reliability and compatibility to power module materials. A 31% reduction of thermal resistance at 10L/min 25°C was obtained, which is much lower than even referenced double-side water-cooling power modules, thus demonstrating the feasibility of direct oil-cooling automotive power electronics.","PeriodicalId":151155,"journal":{"name":"2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia)","volume":"773 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133613764","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 : 2023-05-22DOI: 10.23919/ICPE2023-ECCEAsia54778.2023.10213876
A. Mirza, I. Nutkani, C. Teixeira, B. Mcgrath
Synchronisation is an essential operational requirement for grid-connected voltage source inverters (VSIs). Several schemes have been proposed to maintain synchronisation without using voltage sensors. However, establishing the initial synchronisation without voltage sensors remains challenging because of the absence of the grid voltage magnitude and phase information. This paper presents a grid voltage estimation scheme for single-phase VSIs that uses a startup pulse width modulation (PWM) control approach, which constrains the modulation depth such that the inverter current is mainly driven by the grid voltage. This allows the accurate detection of the grid voltage magnitude and phase from the switched inverter current measurement. A mathematical model with key analytical design equations is presented. The scheme’s voltage estimation accuracy and its application for grid synchronisation are validated using switched simulations in Altair PSIM.
{"title":"A Sensorless Grid Voltage Estimation Scheme for a Single-phase Voltage Source Inverter","authors":"A. Mirza, I. Nutkani, C. Teixeira, B. Mcgrath","doi":"10.23919/ICPE2023-ECCEAsia54778.2023.10213876","DOIUrl":"https://doi.org/10.23919/ICPE2023-ECCEAsia54778.2023.10213876","url":null,"abstract":"Synchronisation is an essential operational requirement for grid-connected voltage source inverters (VSIs). Several schemes have been proposed to maintain synchronisation without using voltage sensors. However, establishing the initial synchronisation without voltage sensors remains challenging because of the absence of the grid voltage magnitude and phase information. This paper presents a grid voltage estimation scheme for single-phase VSIs that uses a startup pulse width modulation (PWM) control approach, which constrains the modulation depth such that the inverter current is mainly driven by the grid voltage. This allows the accurate detection of the grid voltage magnitude and phase from the switched inverter current measurement. A mathematical model with key analytical design equations is presented. The scheme’s voltage estimation accuracy and its application for grid synchronisation are validated using switched simulations in Altair PSIM.","PeriodicalId":151155,"journal":{"name":"2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133634879","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 : 2023-05-22DOI: 10.23919/ICPE2023-ECCEAsia54778.2023.10213748
Juyeong Park, Honnyong Cha
This paper proposes an EE core structure coupled inductor with center gap design, which is applied in the Boost-SEPIC interleaved (BSI) converter. The proposed coupled inductor can integrate all three inductors with unequal voltage conditions. In addition, owing to the characteristics of the structure, each inductor current ripple is minimized, thus, the conduction loss is reduced, as well. Also, the overall size of the inductor is decreased significantly. The performance of the proposed coupled inductor is verified with a 2-kW prototype.
{"title":"Boost-SEPIC Interleaved Converter with Integrated Magnetics","authors":"Juyeong Park, Honnyong Cha","doi":"10.23919/ICPE2023-ECCEAsia54778.2023.10213748","DOIUrl":"https://doi.org/10.23919/ICPE2023-ECCEAsia54778.2023.10213748","url":null,"abstract":"This paper proposes an EE core structure coupled inductor with center gap design, which is applied in the Boost-SEPIC interleaved (BSI) converter. The proposed coupled inductor can integrate all three inductors with unequal voltage conditions. In addition, owing to the characteristics of the structure, each inductor current ripple is minimized, thus, the conduction loss is reduced, as well. Also, the overall size of the inductor is decreased significantly. The performance of the proposed coupled inductor is verified with a 2-kW prototype.","PeriodicalId":151155,"journal":{"name":"2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132172446","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 : 2023-05-22DOI: 10.23919/icpe2023-ecceasia54778.2023.10213628
Sung-Yeul Park, Sean Youngblood, Thomas Link, Anthony Ingrassia, A. Bose, Ian Heino
This paper presents a hardware-in-the-loop (HIL) testing platform for the real-time validation of an impedance-based battery management system (BMS). The battery model inside the HIL platform updates in real-time with respect to charge and discharge cycles to give an accurate representation of the battery electrical characteristics as aging occurs. This model was validated using experimental data from an 18650 battery. Online impedance measurements are then performed to update the battery management system in real-time. As such, the battery management system’s performance can be evaluated and can be adjusted. In doing so, state-of-charge and state-of-health estimations can be made with respect to real-time battery impedance rather than by traditional voltage and current measurements. From this, the battery charger and impedance based BMS algorithms can be validated in real-time.
{"title":"Online Impedance Based Hardware-in-the-Loop Testbed for Battery Management Systems","authors":"Sung-Yeul Park, Sean Youngblood, Thomas Link, Anthony Ingrassia, A. Bose, Ian Heino","doi":"10.23919/icpe2023-ecceasia54778.2023.10213628","DOIUrl":"https://doi.org/10.23919/icpe2023-ecceasia54778.2023.10213628","url":null,"abstract":"This paper presents a hardware-in-the-loop (HIL) testing platform for the real-time validation of an impedance-based battery management system (BMS). The battery model inside the HIL platform updates in real-time with respect to charge and discharge cycles to give an accurate representation of the battery electrical characteristics as aging occurs. This model was validated using experimental data from an 18650 battery. Online impedance measurements are then performed to update the battery management system in real-time. As such, the battery management system’s performance can be evaluated and can be adjusted. In doing so, state-of-charge and state-of-health estimations can be made with respect to real-time battery impedance rather than by traditional voltage and current measurements. From this, the battery charger and impedance based BMS algorithms can be validated in real-time.","PeriodicalId":151155,"journal":{"name":"2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128809881","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 : 2023-05-22DOI: 10.23919/ICPE2023-ECCEAsia54778.2023.10213837
Xuewen Li, Jia Liu, Guozhong Zhu, Fangchao Ji, Jianyue Di, Yue Wang, Jinjun Liu
High-frequency link (HFL) inverters have drawn a lot of attention as a promising structure, owing to their high transformer utilization factor, bidirectional energy transfer, and easy implementation of soft switching. However, the use of HFI structures in split-phase systems is rarely studied. Therefore, a novel single-stage high-frequency link microinverter with a split-phase structure is proposed in this paper. The proposed microinverter can provide two different output-voltage levels matching the single-phase three-wire power system. The output voltages of the two phases can be balanced naturally without dedicated control. It has grid-forming capability, which can be used in both grid-connected applications and islanded applications. With a secondary-side modulation (SSM) strategy, zero-voltage switching (ZVS) can be realized in the proposed microinverter. A 600-W prototype is established, and the experimental and simulation results verify the proposed microinverter.
{"title":"A Single-Stage High-Frequency-Link Microinverter with Split-Phase Structure","authors":"Xuewen Li, Jia Liu, Guozhong Zhu, Fangchao Ji, Jianyue Di, Yue Wang, Jinjun Liu","doi":"10.23919/ICPE2023-ECCEAsia54778.2023.10213837","DOIUrl":"https://doi.org/10.23919/ICPE2023-ECCEAsia54778.2023.10213837","url":null,"abstract":"High-frequency link (HFL) inverters have drawn a lot of attention as a promising structure, owing to their high transformer utilization factor, bidirectional energy transfer, and easy implementation of soft switching. However, the use of HFI structures in split-phase systems is rarely studied. Therefore, a novel single-stage high-frequency link microinverter with a split-phase structure is proposed in this paper. The proposed microinverter can provide two different output-voltage levels matching the single-phase three-wire power system. The output voltages of the two phases can be balanced naturally without dedicated control. It has grid-forming capability, which can be used in both grid-connected applications and islanded applications. With a secondary-side modulation (SSM) strategy, zero-voltage switching (ZVS) can be realized in the proposed microinverter. A 600-W prototype is established, and the experimental and simulation results verify the proposed microinverter.","PeriodicalId":151155,"journal":{"name":"2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127800874","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 : 2023-05-22DOI: 10.23919/ICPE2023-ECCEAsia54778.2023.10213652
Cheol-Hwan Kim, Gyeong-Seop Lim, Joo-Han Park, Muhammad Umer Amjad, Minsung Kim, Sang-Won Lee
This paper presents series-stacked ripple-free resonant dc/dc converter for low voltage fuel-cell applications. By connecting two active voltage doublers in series, the proposed circuit achieved very high-voltage gain. Without using extra input inductors, active-clamped push-pull circuit operating with fixed duty-ratio at 0.5 generate the ripple-free input current; this trait extends the lifetime of the fuel-cell. The active power components are turned on and off with soft switching. A 1-kW prototype of the proposed converter is implemented and tested to verify the theoretical analysis.
{"title":"Series-Stacked Ripple-Free Resonant DC/DC Converter for Low Voltage Fuel-Cell Applications","authors":"Cheol-Hwan Kim, Gyeong-Seop Lim, Joo-Han Park, Muhammad Umer Amjad, Minsung Kim, Sang-Won Lee","doi":"10.23919/ICPE2023-ECCEAsia54778.2023.10213652","DOIUrl":"https://doi.org/10.23919/ICPE2023-ECCEAsia54778.2023.10213652","url":null,"abstract":"This paper presents series-stacked ripple-free resonant dc/dc converter for low voltage fuel-cell applications. By connecting two active voltage doublers in series, the proposed circuit achieved very high-voltage gain. Without using extra input inductors, active-clamped push-pull circuit operating with fixed duty-ratio at 0.5 generate the ripple-free input current; this trait extends the lifetime of the fuel-cell. The active power components are turned on and off with soft switching. A 1-kW prototype of the proposed converter is implemented and tested to verify the theoretical analysis.","PeriodicalId":151155,"journal":{"name":"2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131691329","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 : 2023-05-22DOI: 10.23919/ICPE2023-ECCEAsia54778.2023.10213770
D. Cao, D. Zhang, J. Kolar, J. Huber
Future particle accelerators for high-energy physics experiments such as the Future Circular Collider (FCC) at CERN employ high-temperature-superconducting (HTS) magnets to guide and focus the particle beams. However, the high-current/large-cross-section copper conductors used to connect the HTS magnet coils to the power supply conventionally located outside of the cryostat create a thermal leakage path, which ultimately results in high energy consumption of the cryocoolers. The heat leak-in could be reduced by power delivery through the cryostat’s heat shield at higher voltage levels and hence with lower currents. However, then a power electronic conversion to the low voltage and high current needed by the HTS magnets must be provided inside of the cryostat. Given the increased complexity, such a concept is only sensible if the resulting total heat load, i.e., the sum of the converter losses and the (then lower) leak-in losses, is so low that a clear improvement of the overall energy efficiency results. In this paper, we therefore conceptualize a cryogenic power supply for a 250-A HTS magnet, which operates at 60 K. Considering the strict EMI limits applicable in the CERN environment, a co-design method for the current leads and a full-bridge multiphase buck dc-dc converter is introduced and used to explore the design trade-offs. The results indicate that a reduction of the total heat load by about a factor of three to four compared to the state of the art seems feasible, i.e., from about 21 W to about 5 W.
{"title":"Conceptualization of a Cryogenic 250-A Power Supply for High-Temperature-Superconducting (HTS) Magnets of Future Particle Accelerators","authors":"D. Cao, D. Zhang, J. Kolar, J. Huber","doi":"10.23919/ICPE2023-ECCEAsia54778.2023.10213770","DOIUrl":"https://doi.org/10.23919/ICPE2023-ECCEAsia54778.2023.10213770","url":null,"abstract":"Future particle accelerators for high-energy physics experiments such as the Future Circular Collider (FCC) at CERN employ high-temperature-superconducting (HTS) magnets to guide and focus the particle beams. However, the high-current/large-cross-section copper conductors used to connect the HTS magnet coils to the power supply conventionally located outside of the cryostat create a thermal leakage path, which ultimately results in high energy consumption of the cryocoolers. The heat leak-in could be reduced by power delivery through the cryostat’s heat shield at higher voltage levels and hence with lower currents. However, then a power electronic conversion to the low voltage and high current needed by the HTS magnets must be provided inside of the cryostat. Given the increased complexity, such a concept is only sensible if the resulting total heat load, i.e., the sum of the converter losses and the (then lower) leak-in losses, is so low that a clear improvement of the overall energy efficiency results. In this paper, we therefore conceptualize a cryogenic power supply for a 250-A HTS magnet, which operates at 60 K. Considering the strict EMI limits applicable in the CERN environment, a co-design method for the current leads and a full-bridge multiphase buck dc-dc converter is introduced and used to explore the design trade-offs. The results indicate that a reduction of the total heat load by about a factor of three to four compared to the state of the art seems feasible, i.e., from about 21 W to about 5 W.","PeriodicalId":151155,"journal":{"name":"2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115516128","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 : 2023-05-22DOI: 10.23919/ICPE2023-ECCEAsia54778.2023.10213486
Jun-Hyung Jung, Sattar Bazyar, H. Beiranvand, João Victor Matos Farias, M. Liserre
A modular multilevel converter (MMC) based isolated DC-DC converter is an interesting topology enabling medium-voltage DC (MVDC) grid-connected EV charging stations, an efficient solution for reducing power conversion stages. In modulations applied to MMC based DC-DC converters, a quasi-two-level (Q2L) modulation is suitable for medium-frequency (MF) DC-DC conversion and can reduce stresses on a transformer due to a low dv/dt characteristic. However, attention must be paid to balancing DC capacitor voltages between the submodules (SMs), and it is hard to apply the existing methods in practice because of the complex balancing algorithm. Therefore, this paper proposes a new modulation with inherent SM DC capacitor voltage balancing for the MMC, which is used as a primary converter of MVDC isolated DC-DC converters. The proposed modulation can achieve the natural balancing of the DC capacitor voltages by rotating the SM insertion duration. In addition, improved balancing of SM capacitor voltages can be achieved by applying a controller to compensate for the effects of uncertain parameters such as capacitance tolerances. The effectiveness of the proposed modulation is verified with simulation and experimental results.
{"title":"A Single Carrier Rotating Modulation for Modular Multilevel Converter based Isolated DC-DC Converters in EV Charging Station","authors":"Jun-Hyung Jung, Sattar Bazyar, H. Beiranvand, João Victor Matos Farias, M. Liserre","doi":"10.23919/ICPE2023-ECCEAsia54778.2023.10213486","DOIUrl":"https://doi.org/10.23919/ICPE2023-ECCEAsia54778.2023.10213486","url":null,"abstract":"A modular multilevel converter (MMC) based isolated DC-DC converter is an interesting topology enabling medium-voltage DC (MVDC) grid-connected EV charging stations, an efficient solution for reducing power conversion stages. In modulations applied to MMC based DC-DC converters, a quasi-two-level (Q2L) modulation is suitable for medium-frequency (MF) DC-DC conversion and can reduce stresses on a transformer due to a low dv/dt characteristic. However, attention must be paid to balancing DC capacitor voltages between the submodules (SMs), and it is hard to apply the existing methods in practice because of the complex balancing algorithm. Therefore, this paper proposes a new modulation with inherent SM DC capacitor voltage balancing for the MMC, which is used as a primary converter of MVDC isolated DC-DC converters. The proposed modulation can achieve the natural balancing of the DC capacitor voltages by rotating the SM insertion duration. In addition, improved balancing of SM capacitor voltages can be achieved by applying a controller to compensate for the effects of uncertain parameters such as capacitance tolerances. The effectiveness of the proposed modulation is verified with simulation and experimental results.","PeriodicalId":151155,"journal":{"name":"2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115718365","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 : 2023-05-22DOI: 10.23919/ICPE2023-ECCEAsia54778.2023.10213623
Seungchan Jeon, Sungwoo Bae
This paper proposes a data-driven method for modeling electrolyzers at the cell level that takes into account operating conditions such as pressure, temperature, and current. To achieve this, operating conditions were categorized into optimal clusters using the K-means clustering algorithm. A deep neural network (DNN) was used to map the complex nonlinear input-output relationships arising from the electrolyzer's thermodynamic and electrochemical reactions. The study used a dataset of experimental data obtained from various specifications and operating conditions installed in different regions, with the goal of creating an adaptive electrolyzer model. The results showed that the proposed model outperformed physical-based and data-driven models that did not consider operating conditions in all evaluation indices. Specifically, the modeling error was MSE 0.15V/cell, RMSE 12.15mV/cell, MAE 8.14mV, and RE 0.49%. Therefore, the proposed model is suitable for energy grid research such as digital twins in future studies.
{"title":"Data-Driven Electrolyzer Modeling: Adaptive Model Considering Operating Conditions using K-means Clustering","authors":"Seungchan Jeon, Sungwoo Bae","doi":"10.23919/ICPE2023-ECCEAsia54778.2023.10213623","DOIUrl":"https://doi.org/10.23919/ICPE2023-ECCEAsia54778.2023.10213623","url":null,"abstract":"This paper proposes a data-driven method for modeling electrolyzers at the cell level that takes into account operating conditions such as pressure, temperature, and current. To achieve this, operating conditions were categorized into optimal clusters using the K-means clustering algorithm. A deep neural network (DNN) was used to map the complex nonlinear input-output relationships arising from the electrolyzer's thermodynamic and electrochemical reactions. The study used a dataset of experimental data obtained from various specifications and operating conditions installed in different regions, with the goal of creating an adaptive electrolyzer model. The results showed that the proposed model outperformed physical-based and data-driven models that did not consider operating conditions in all evaluation indices. Specifically, the modeling error was MSE 0.15V/cell, RMSE 12.15mV/cell, MAE 8.14mV, and RE 0.49%. Therefore, the proposed model is suitable for energy grid research such as digital twins in future studies.","PeriodicalId":151155,"journal":{"name":"2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115788909","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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