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2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia)最新文献

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Virtual DC machine Control for PV converters in DC Distribution System 直流配电系统中光伏变流器的虚拟直流机控制
2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia) Pub Date : 2021-05-24 DOI: 10.1109/ECCE-Asia49820.2021.9479344
Hao Hu, Miao Zhu, Junjun Zhang, Meiyin Liu, X. Cai
{"title":"Virtual DC machine Control for PV converters in DC Distribution System","authors":"Hao Hu, Miao Zhu, Junjun Zhang, Meiyin Liu, X. Cai","doi":"10.1109/ECCE-Asia49820.2021.9479344","DOIUrl":"https://doi.org/10.1109/ECCE-Asia49820.2021.9479344","url":null,"abstract":"Due to the wide-range power fluctuation of renewable energy resources, the stability enhancement of DC bus voltage is becoming a key issue in DC distribution system with the increasing penetration level of converter-based resources featured by low inertia. This paper proposes a virtual DC machine control scheme that brings inertia characteristic to PV converters in DC distribution system and fully considers the operation principles of renewable power generation. Both the overall control scheme and the small-signal modeling are investigated. Meanwhile, the performance of the proposed VDCM control is analyzed based on derived model and a brief comparative study with traditional PI regulation is presented. Finally, simulation is carried out to verify the theoretical analysis.","PeriodicalId":145366,"journal":{"name":"2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia)","volume":"562 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116187414","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}
引用次数: 0
Adaptive Power Quality Estimation for Smart Grid Applications using Secant Cost Based Fractional Algorithm 基于割线代价的分数算法的智能电网自适应电能质量估计
2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia) Pub Date : 2021-05-24 DOI: 10.1109/ECCE-Asia49820.2021.9478985
Umamani Subudhi, H. K. Sahoo
{"title":"Adaptive Power Quality Estimation for Smart Grid Applications using Secant Cost Based Fractional Algorithm","authors":"Umamani Subudhi, H. K. Sahoo","doi":"10.1109/ECCE-Asia49820.2021.9478985","DOIUrl":"https://doi.org/10.1109/ECCE-Asia49820.2021.9478985","url":null,"abstract":"Tracking and mitigation of power quality (PQ) disturbances are two most challenging tasks during integration of smart grid with the conventional power networks. Estimation models using adaptive filtering algorithms are quite effective to track the time varying and short duration PQ disturbances. An efficient estimation model for time-varying disturbances is proposed using fractional adaptive filtering with secant cost function and tested using standard real time database with detail comparison results.","PeriodicalId":145366,"journal":{"name":"2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114807940","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}
引用次数: 0
An Improved Maximum Energy Efficiency Tracking Control Method for Inductive Power Transfer Systems 一种改进的感应输电系统最大能量效率跟踪控制方法
2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia) Pub Date : 2021-05-24 DOI: 10.1109/ECCE-Asia49820.2021.9479324
Shuo Chen, Wen Ding, Ke Li, Ruiming Hu, Zhaoguo Liu
{"title":"An Improved Maximum Energy Efficiency Tracking Control Method for Inductive Power Transfer Systems","authors":"Shuo Chen, Wen Ding, Ke Li, Ruiming Hu, Zhaoguo Liu","doi":"10.1109/ECCE-Asia49820.2021.9479324","DOIUrl":"https://doi.org/10.1109/ECCE-Asia49820.2021.9479324","url":null,"abstract":"A transmitting-side phase shift control strategy based on an improved perturbation and observation (P&O) method is proposed to achieve maximum energy efficiency tracking (MEET) for LCL-LCL compensated inductive power transfer (IPT) systems, which is based on minimizing the input dc current. In this method, the tracking process for the maximum efficiency point is divided into two stages (tracking and oscillation stage), and an adaptive perturbation step size is proposed. In the tracking stage, a large step size is set for the short time to reach the maximum efficiency point. The decreasing step size in the oscillation stage is introduced to reduce the steady state oscillation existed in the conventional method, and the corresponding state switching conditions are given. Hence, the trade-off for MEET between the convergence rate and the oscillation can be removed by adopting this method. Finally, simulation results are given to verify the effectiveness of the proposed algorithm.","PeriodicalId":145366,"journal":{"name":"2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia)","volume":"295 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114843768","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}
引用次数: 0
Analysis of Voltage Stress Dependencies Around the Coupler of a Capacitive Power Transfer System 电容式输电系统耦合器周围电压应力相关性分析
2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia) Pub Date : 2021-05-24 DOI: 10.1109/ECCE-Asia49820.2021.9479408
Xu Chen, Zhe Zhang, M. Andersen
{"title":"Analysis of Voltage Stress Dependencies Around the Coupler of a Capacitive Power Transfer System","authors":"Xu Chen, Zhe Zhang, M. Andersen","doi":"10.1109/ECCE-Asia49820.2021.9479408","DOIUrl":"https://doi.org/10.1109/ECCE-Asia49820.2021.9479408","url":null,"abstract":"This paper aims at addressing the dependencies of the voltages stresses around the coupler of a capacitive power transfer (CPT) system. CPT system with different compensation networks are summarized as a general topology, from which the voltage stresses are derived and analysed. A theoretical minimum voltage stress point that only depends on the output power, coupling capacitance and switching frequency is found, regardless of the compensation network type. Simulations as well as a 5W prototype with 150pF coupling capacitance, 2MHz switching frequency have been built and tested to validate the theoretical analysis.","PeriodicalId":145366,"journal":{"name":"2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114849649","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}
引用次数: 0
Grid Impedance Impact on the Maximum Power Transfer Capability of Grid-Connected Inverter 电网阻抗对并网逆变器最大功率传输能力的影响
2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia) Pub Date : 2021-05-24 DOI: 10.1109/ECCE-Asia49820.2021.9479080
Liangwei Huang, Chao Wu, Dao Zhou, F. Blaabjerg
{"title":"Grid Impedance Impact on the Maximum Power Transfer Capability of Grid-Connected Inverter","authors":"Liangwei Huang, Chao Wu, Dao Zhou, F. Blaabjerg","doi":"10.1109/ECCE-Asia49820.2021.9479080","DOIUrl":"https://doi.org/10.1109/ECCE-Asia49820.2021.9479080","url":null,"abstract":"This paper analyzes the maximum power transfer capability of the grid-connected renewable energy generation system, which is mainly influenced by the short circuit ratio (SCR) and the resistance-inductance ratio (R/X) of grid impedance. It is revealed that an inverter connected to the AC grid with a larger SCR or a smaller R/X ratio has more power transfer capability. Besides, it is found that the critical conditions for the inductive grid and the resistive grid are different. Under an inductive grid, SCR = 1 is a critical point for effective power transmission. However, under a resistive grid, the SCR needs to be at least higher than 5 for effective power transmission. Finally, simulation results verify the effectiveness of the analysis.","PeriodicalId":145366,"journal":{"name":"2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia)","volume":"2013 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114879865","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}
引用次数: 4
Reconfiguration of Four-Level Active Neutral-Point-Clamped Inverters for Fault-Tolerant Operation 容错运行的四电平有源中性点箝位逆变器重构
2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia) Pub Date : 2021-05-24 DOI: 10.1109/ECCE-Asia49820.2021.9479182
Jonathan Pribadi, Dong-Choon Lee
{"title":"Reconfiguration of Four-Level Active Neutral-Point-Clamped Inverters for Fault-Tolerant Operation","authors":"Jonathan Pribadi, Dong-Choon Lee","doi":"10.1109/ECCE-Asia49820.2021.9479182","DOIUrl":"https://doi.org/10.1109/ECCE-Asia49820.2021.9479182","url":null,"abstract":"This paper proposes a reconfiguration of four-level active neutral-point-clamped (4L-ANPC) inverter structure for preserving a fault-tolerant operation during open fault conditions. A set of fault-tolerant switches (FTS) is included at each phase in order to replace the functions of faulty switches. With this integration, the maximum possible number of level at output line voltage is preserved based on the failure case. The effectiveness of the proposed technique has been verified by simulation results.","PeriodicalId":145366,"journal":{"name":"2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia)","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126269382","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}
引用次数: 2
Winding Structure of Air-Core Planar Inductors Capable of Reducing High-Frequency Eddy Currents 能减小高频涡流的空心平面电感绕组结构
2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia) Pub Date : 2021-05-24 DOI: 10.1109/ecce-asia49820.2021.9479357
Shotaro Kanno, S. Ogasawara, K. Orikawa
{"title":"Winding Structure of Air-Core Planar Inductors Capable of Reducing High-Frequency Eddy Currents","authors":"Shotaro Kanno, S. Ogasawara, K. Orikawa","doi":"10.1109/ecce-asia49820.2021.9479357","DOIUrl":"https://doi.org/10.1109/ecce-asia49820.2021.9479357","url":null,"abstract":"High-frequency converters with high power density have shown promise in recent years. Air-core planar inductors built with printed circuit boards can eliminate problems associated with the use of magnetic materials, such as iron loss and magnetic saturation. However, conventional air-core planar inductors have large stray capacitance and suffer from eddy current loss. Stray capacitance affects the self-resonant frequency, and eddy currents affect the resistance and inductance of the inductor. This paper proposes a stranded wire structure to reduce stray capacitance and eddy currents and realize a smaller stray capacitance than that in the conventional structure. In addition, eddy currents can be reduced by splitting windings of the proposed stranded wire structure. Seven types of air-core planar inductors were built, and their impedance, resistance, and inductance were measured to evaluate the effects of different structures on stray capacitance and eddy currents. Furthermore, the temperature distribution of planar inductors was measured with a power amplifier. The experimental results demonstrate the utility of the proposed stranded wire structure.","PeriodicalId":145366,"journal":{"name":"2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia)","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126452652","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}
引用次数: 1
High-Efficiency Resonant Push-Pull AC Heater for Lithium-Ion Battery Pre-heating at Low Temperature 用于锂离子电池低温预热的高效谐振推挽式交流加热器
2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia) Pub Date : 2021-05-24 DOI: 10.1109/ECCE-Asia49820.2021.9479370
Jae-Sang Kim, Keon-Woo Kim, Juhyun Bae, Sung-Pyo Cheon, G. Moon
{"title":"High-Efficiency Resonant Push-Pull AC Heater for Lithium-Ion Battery Pre-heating at Low Temperature","authors":"Jae-Sang Kim, Keon-Woo Kim, Juhyun Bae, Sung-Pyo Cheon, G. Moon","doi":"10.1109/ECCE-Asia49820.2021.9479370","DOIUrl":"https://doi.org/10.1109/ECCE-Asia49820.2021.9479370","url":null,"abstract":"Lithium-ion batteries suffer from serious problems in charging and discharging in a low-temperature environment, and battery pre-heating methods are being actively conducted to solve this problem. The internal heating method which uses the ohmic loss of the battery internal resistance can be implemented with an on-board self-heater without an external power source, and is suitable for electric vehicles or portable devices. This paper proposes a new resonant push-pull AC heater. The proposed heater reduces voltage stress and switching loss by connecting a resonant capacitor to the switch in parallel. In addition, it has a small volume as it can achieve ’all-time heating’ of a battery without an interleaving structure. In order to verify the effectiveness of the proposed AC heater, an experiment was performed to preheat a lithium-ion battery of 8 series-2 parallel 18650 type from −20°C to 0°C.","PeriodicalId":145366,"journal":{"name":"2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128129805","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}
引用次数: 1
An AC Current-Limiting Strategy for the Improved Modular Multilevel Converter 改进型模块化多电平变换器的交流限流策略
2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia) Pub Date : 2021-05-24 DOI: 10.1109/ECCE-Asia49820.2021.9479308
Xiongfeng Fang, Zeyu Hu, Chaoxu Gao, J. Xiong, Kai Zhang
{"title":"An AC Current-Limiting Strategy for the Improved Modular Multilevel Converter","authors":"Xiongfeng Fang, Zeyu Hu, Chaoxu Gao, J. Xiong, Kai Zhang","doi":"10.1109/ECCE-Asia49820.2021.9479308","DOIUrl":"https://doi.org/10.1109/ECCE-Asia49820.2021.9479308","url":null,"abstract":"The improved modular multilevel converter (MMC) based on half-bridge submodules (HBSMs) and H- bridge circuits can block the de fault current with a small number of extra semiconductor devices. Besides, the loss of the improved MMC is close to the loss of HB-MMC if ultra-fast mechanical disconnectors (UFDs) are employed to consist of direction switches (DSs). However, an ac short circuit fault will occur during the opening period of the UFDs. The ac currents will increase rapidly, threatening the system's safety and disturbing the ac grid. An ac current-limiting strategy is proposed in this paper to solve this problem. By blocking the other five arms, de inductors can limit ac currents during the UFD opening period. By inserting reverse-biased voltages (RBVs) provided by the current transfer arm (CTA) early according to the actual breakdown voltage of UFDs, ac currents can be limited by RBVs during the opening period of the UFD. Thus, the safety of the system can be assured. Besides, the requirement for the opening time of UFDs can be reduced, which means less cost.","PeriodicalId":145366,"journal":{"name":"2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127958727","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}
引用次数: 0
Continuous Monitoring of Parasitic Elements in Boost Converter Circuit 升压变换器电路中寄生元件的连续监测
2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia) Pub Date : 2021-05-24 DOI: 10.1109/ecce-asia49820.2021.9479093
A. Suzdalenko, Victoria Sribniya, J. Zakis, Khang Huynh
{"title":"Continuous Monitoring of Parasitic Elements in Boost Converter Circuit","authors":"A. Suzdalenko, Victoria Sribniya, J. Zakis, Khang Huynh","doi":"10.1109/ecce-asia49820.2021.9479093","DOIUrl":"https://doi.org/10.1109/ecce-asia49820.2021.9479093","url":null,"abstract":"The given paper explains the necessity of condition monitoring for DC/DC boost converter circuit. Further, an analytical model of circuit parasitic estimation is presented based on measured quantities in the circuit. The implementation of continuous estimation of circuit parasitic elements is analytically explained and verified by simulations and experimental results. Obtained results are acceptable for condition monitoring.","PeriodicalId":145366,"journal":{"name":"2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia)","volume":"214 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121722500","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}
引用次数: 2
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