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2019 IEEE 4th International Future Energy Electronics Conference (IFEEC)最新文献

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A Novel Current Reference to Enhance Input Power Quality of Single-stage LED Driver 一种提高单级LED驱动器输入电能质量的新型电流基准
2019 IEEE 4th International Future Energy Electronics Conference (IFEEC) Pub Date : 2019-11-01 DOI: 10.1109/IFEEC47410.2019.9015094
Huan Li, Waqas Hassan, W. Xiao
{"title":"A Novel Current Reference to Enhance Input Power Quality of Single-stage LED Driver","authors":"Huan Li, Waqas Hassan, W. Xiao","doi":"10.1109/IFEEC47410.2019.9015094","DOIUrl":"https://doi.org/10.1109/IFEEC47410.2019.9015094","url":null,"abstract":"Light-emitting diodes (LED) are regarded as the ideal replacement for traditional lighting sources. With the increasing utilization, the accumulating power capacity brings the input power quality into the concern. A LED driver is required to maintain good input power quality for minimal impact on grid. Single-stage LED driver is regarded as an effective solution for low-cost and low-power application. SIN and SIN^2 current references are recently proposed for single-stage LED driver. In this paper, a novel current reference based on the electric model of LED is proposed to further improve the input power quality compared with the SIN and SIN^2 references. Simulation results verify that the proposed current reference can significantly reduce total harmonic distortion (THD) of input current.","PeriodicalId":230939,"journal":{"name":"2019 IEEE 4th International Future Energy Electronics Conference (IFEEC)","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126088578","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
Impedance Measurement of Grid-Tied Inverter With Deviate-Frequency Harmonic Current Injection 偏频谐波注入并网逆变器阻抗测量
2019 IEEE 4th International Future Energy Electronics Conference (IFEEC) Pub Date : 2019-11-01 DOI: 10.1109/IFEEC47410.2019.9015001
Peijun Zhong, Jianjun Sun, Qionglin Li, Yi Wang, X. Zha
{"title":"Impedance Measurement of Grid-Tied Inverter With Deviate-Frequency Harmonic Current Injection","authors":"Peijun Zhong, Jianjun Sun, Qionglin Li, Yi Wang, X. Zha","doi":"10.1109/IFEEC47410.2019.9015001","DOIUrl":"https://doi.org/10.1109/IFEEC47410.2019.9015001","url":null,"abstract":"The output impedance of the grid-tied inverter is an important parameter to determine the stability of its operation. In this paper, the influence of inverter modulation and dead zone phenomena on impedance measurement is analyzed, and an impedance measurement method based on deviate-frequency harmonic current injection is proposed. Simulation results are provided to demonstrate the feasibility and the performance, and the results show that the new method can accurately measure impedance amplitude and angle of inverter in broadband frequency.","PeriodicalId":230939,"journal":{"name":"2019 IEEE 4th International Future Energy Electronics Conference (IFEEC)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125253136","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
A 10MHz GaN Based Buck Converter with Dynamic Pull-up Resistor Gate Driver 带有动态上拉电阻栅极驱动器的10MHz GaN降压变换器
2019 IEEE 4th International Future Energy Electronics Conference (IFEEC) Pub Date : 2019-11-01 DOI: 10.1109/IFEEC47410.2019.9015025
S. Li, Pin Ying Wang, Ching-Jan Chen, Chih-Chao Hsu
{"title":"A 10MHz GaN Based Buck Converter with Dynamic Pull-up Resistor Gate Driver","authors":"S. Li, Pin Ying Wang, Ching-Jan Chen, Chih-Chao Hsu","doi":"10.1109/IFEEC47410.2019.9015025","DOIUrl":"https://doi.org/10.1109/IFEEC47410.2019.9015025","url":null,"abstract":"Targeting on high switching frequency gallium nitride (GaN) dc-dc buck converter, this paper presents a 10MHz switching frequency gate driver IC for GaN based synchronous buck converter with 12V maximum input voltage. The proposed bootstrap circuit prevent overcharge issue in GaN application, and the dynamic pull-up resistor gate driver suppress the gate-to-source voltage spike 400mV effectively and the rising time is 2.3ns. A low propagation delay and high common-mode transient immunity level shifter is also proposed for high speed application achieves the turn on propagtion delay is 480.9ps and the turn off propagation delay is 633.4ps by simulation result. This work was fabricated in a 0.25-μm TSMC Bipolar-CMOS-DMOS process.","PeriodicalId":230939,"journal":{"name":"2019 IEEE 4th International Future Energy Electronics Conference (IFEEC)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124139825","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: 6
A Novel Multi-port Bi-directional Inductive Power Transfer System with Simultaneous Main and Auxiliary Battery Charging Capability 一种具有主辅电池同步充电能力的新型多端口双向感应电力传输系统
2019 IEEE 4th International Future Energy Electronics Conference (IFEEC) Pub Date : 2019-11-01 DOI: 10.1109/IFEEC47410.2019.9014930
D. S. Nugroho, Ryosuke Ota, N. Hoshi
{"title":"A Novel Multi-port Bi-directional Inductive Power Transfer System with Simultaneous Main and Auxiliary Battery Charging Capability","authors":"D. S. Nugroho, Ryosuke Ota, N. Hoshi","doi":"10.1109/IFEEC47410.2019.9014930","DOIUrl":"https://doi.org/10.1109/IFEEC47410.2019.9014930","url":null,"abstract":"When the battery in an electric vehicle (EV) is charged by an inductive power transfer (IPT) system, in general, the transmitted power is charged to the main battery used for the traction system on the EV at first. Next, the auxiliary battery is charged by the stored energy in the main battery through an isolated DC–DC converter. This causes an increase in the number of the power conversion stage and devices used. Therefore, this paper proposes a novel multi-port bi-directional IPT system that is able to charge both of the main and the auxiliary batteries simultaneously. In the proposed system, the number of power conversion stage and the devices used in it, specifically two diodes and two inductors, can be reduced. In addition, the design method of the novel system and the method for controlling the transmission power are described. Furthermore, the characteristics of the transmission power and efficiency (i.e. power loss) of the resonant circuit are derived from the theoretical analysis, and then the validity of the theoretical analysis is verified by the experiments. From the experiments, in Primary-side Coupled Mode, the maximum percentage errors were 7.2 % and 0.8 % in the transmission power and the resonant circuit loss, respectively, when the total transmission power to the main and auxiliary batteries was 1100 W. In Primary-side Non-coupled Mode, the percentage errors were 0.1 % and 23 % in the charging power and the resonant circuit loss, respectively, when the charging power of the auxiliary battery was 100 W. From the above, the validity of the theoretical analysis was verified.","PeriodicalId":230939,"journal":{"name":"2019 IEEE 4th International Future Energy Electronics Conference (IFEEC)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126513318","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
Research on Operation of Modular Multilevel Converter under Asymmetric Grid Conditions 非对称网格条件下模块化多电平变换器的运行研究
2019 IEEE 4th International Future Energy Electronics Conference (IFEEC) Pub Date : 2019-11-01 DOI: 10.1109/IFEEC47410.2019.9015059
Zigao Xu, Binbin Li, Jian Ding, Shiguang Zhang, Wei Wang, Dianguo Xu
{"title":"Research on Operation of Modular Multilevel Converter under Asymmetric Grid Conditions","authors":"Zigao Xu, Binbin Li, Jian Ding, Shiguang Zhang, Wei Wang, Dianguo Xu","doi":"10.1109/IFEEC47410.2019.9015059","DOIUrl":"https://doi.org/10.1109/IFEEC47410.2019.9015059","url":null,"abstract":"An asymmetric AC grid fault will lead to a zero sequence component of double-frequency appeared in the circulating current of modular multilevel converter (MMC). Since the zero sequence component cannot be counteracted between three phases, it will flow into the DC side, generating voltage and current fluctuations with double-frequency, which affects the stability of the system. In this paper, the mechanism of DC side fluctuations caused by the asymmetric fault on AC grid are illustrated. And three major types of asymmetric faults including single-phase grounding, two-phase grounding and two-phase short-circuit faults are compared to study the effect of different faults on the DC side fluctuation of MMC. Furthermore, a decoupling control strategy of MMC is adopted, which can independently control the AC and DC loops thus easier to suppress the fluctuation in DC voltage and current. Finally, Correctness of theoretical analysis and the control strategy in this paper are both verified by simulation and experimental results.","PeriodicalId":230939,"journal":{"name":"2019 IEEE 4th International Future Energy Electronics Conference (IFEEC)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130678211","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
Modular Multilevel DC-DC Transformer and its Modulation Strategy 模块化多电平DC-DC变压器及其调制策略
2019 IEEE 4th International Future Energy Electronics Conference (IFEEC) Pub Date : 2019-11-01 DOI: 10.1109/IFEEC47410.2019.9015188
Yang Chen, Miao Zhu, Jianjun Ma, Han Wang, X. Cai
{"title":"Modular Multilevel DC-DC Transformer and its Modulation Strategy","authors":"Yang Chen, Miao Zhu, Jianjun Ma, Han Wang, X. Cai","doi":"10.1109/IFEEC47410.2019.9015188","DOIUrl":"https://doi.org/10.1109/IFEEC47410.2019.9015188","url":null,"abstract":"A modular multilevel power electronics transformer for DC power grid is proposed in this paper. A novel 2-port submodule is designed and adopted in the DC-DC PET (power electronics transformer). The submodule has ten switches and a capacitor with three working states as an energy buffer. Submodules in the DC-DC PET are connected in input-series¬output-series (ISOS) structure. The capacitor is connected to the primary side and absorbs energy from primary side in State 1. When it is connected to the secondary side, the energy stored in it will be transferred to the secondary side in State 2. When it is isolated from both sides, there will be no energy exchange in State 3. If the modulation frequency is high enough, the capacitor voltage will maintain a constant value approximately. By rotating the submodule working states, the energy can be transmitted from the primary side to the secondary side. Therefore, the different voltage ratio can be achieved by arranging proper submodule numbers in different states simultaneously. The simulation are carried out in Matlab/Simulink and the proposed PET works as expected. The bidirectional power flow, voltage ratio adaption and primary-secondary isolation are achieved without any AC transformer.","PeriodicalId":230939,"journal":{"name":"2019 IEEE 4th International Future Energy Electronics Conference (IFEEC)","volume":"329 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116789657","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
Symmetrical Hybrid Multilevel Inverters for Ship Electric Propulsion Drives 舰船电力推进驱动的对称混合多电平逆变器
2019 IEEE 4th International Future Energy Electronics Conference (IFEEC) Pub Date : 2019-11-01 DOI: 10.1109/IFEEC47410.2019.9015090
Wenfeng Long, Nianzhou Liu, Kui Wang, Zedong Zheng, Yongdong Li
{"title":"Symmetrical Hybrid Multilevel Inverters for Ship Electric Propulsion Drives","authors":"Wenfeng Long, Nianzhou Liu, Kui Wang, Zedong Zheng, Yongdong Li","doi":"10.1109/IFEEC47410.2019.9015090","DOIUrl":"https://doi.org/10.1109/IFEEC47410.2019.9015090","url":null,"abstract":"Medium voltage direct current (MVDC) based ship integrated power system (IPS) is regarded as the future developing trend of ship power system. Medium-voltage high power inverter for ship electric propulsions is one of the key problem. In order to improve the output voltage, power and harmonic performance, a family of symmetrical hybrid multilevel inverter for open-winding multi-phase motor based propulsion drive is presented in this paper. Each phase of this inverter is composed of a high-frequency multilevel DC/DC converter cell and a high-voltage H-bridge cell. The DC/DC converter is operated at high frequency with low voltage devices and the H-bridge is operated at fundamental frequency with high voltage devices. All the phases are connected to a common DC-link and each drives an isolated winding of an open-winding motor. A symmetrical hybrid five-level topology is taken as an example and the control method is discussed in this paper. Simulation results demonstrate the feasibility of this topology and control method.","PeriodicalId":230939,"journal":{"name":"2019 IEEE 4th International Future Energy Electronics Conference (IFEEC)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117036505","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: 6
Operation and Control of Five-level Bi-directional Flying Capacitor DC-DC converter in DC microgrid 直流微电网中五电平双向飞容DC-DC变换器的运行与控制
2019 IEEE 4th International Future Energy Electronics Conference (IFEEC) Pub Date : 2019-11-01 DOI: 10.1109/IFEEC47410.2019.9015201
Vijesh Jayan, A. Ghias
{"title":"Operation and Control of Five-level Bi-directional Flying Capacitor DC-DC converter in DC microgrid","authors":"Vijesh Jayan, A. Ghias","doi":"10.1109/IFEEC47410.2019.9015201","DOIUrl":"https://doi.org/10.1109/IFEEC47410.2019.9015201","url":null,"abstract":"This paper presents a five-level bi-directional flying capacitor DC-DC converter topology for energy management application in a DC microgrid. Unlike traditional two-level DC-DC converter, the presence of multiple flying capacitors in this topology brings the possibility of having a higher voltage-gain conversion ratio at enhanced efficiency. The existence of five voltage levels give the converter an advantage of having reduced voltage stress on its power switches and a low-sized inductor filter at its input. Additionally, the capability of having bi-directional power flow enables the converter to integrate energy storage devices such as the battery to a high voltage DC microgrid effectively. A finite control set - model predictive control (FCS-MPC) algorithm is formulated using the developed mathematical model in order to yield the multi-objective of bi-directional power flow and three flying capacitor voltage balancing. Furthermore, a DC microgrid comprising photo-voltaic (PV) system, load, and battery are considered to assess the effectiveness of the designed FCS-MPC algorithm under varying load and PV power injections.","PeriodicalId":230939,"journal":{"name":"2019 IEEE 4th International Future Energy Electronics Conference (IFEEC)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128364620","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
High-Frequency Transformer Design for LLC Resonant Converter with High Insulation Capability 高绝缘LLC谐振变换器高频变压器设计
2019 IEEE 4th International Future Energy Electronics Conference (IFEEC) Pub Date : 2019-11-01 DOI: 10.1109/IFEEC47410.2019.9014666
Chih-Shen Yeh, Hao Wen, Dong Jiao, J. Lai
{"title":"High-Frequency Transformer Design for LLC Resonant Converter with High Insulation Capability","authors":"Chih-Shen Yeh, Hao Wen, Dong Jiao, J. Lai","doi":"10.1109/IFEEC47410.2019.9014666","DOIUrl":"https://doi.org/10.1109/IFEEC47410.2019.9014666","url":null,"abstract":"Due to high efficiency and simple structure, LLC resonant converter is a promising topology for developing solid-state transformers. The heart of an LLC converter is the high frequency transformer that provides necessary insulation and step-up/down between primary and secondary sides. In addition, the efficiency of the transformer is a critical factor as it processes the entire power. This becomes even more challenging when circuit switching frequency is raised for shrinking passive component sizes, as skin effect and other non-ideal effects start to kick in. In solid-state transformer applications, size, efficiency and insulation have stringent specifications and meeting all requirements at once is not a simple task. Therefore, this paper presents multiple perspectives in terms of transformer design in an LLC converter and demonstrates with a 3-kW transformer capable of more than 15 kV insulation. Testing results show peak converter efficiency of 98.9% with transformer power density of 480 W/in3.","PeriodicalId":230939,"journal":{"name":"2019 IEEE 4th International Future Energy Electronics Conference (IFEEC)","volume":"114 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134167578","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
Bidirectional DC-DC Converter with a Wide-Range Voltage Conversion Ratio 具有宽电压转换比的双向DC-DC变换器
2019 IEEE 4th International Future Energy Electronics Conference (IFEEC) Pub Date : 2019-11-01 DOI: 10.1109/IFEEC47410.2019.9014688
J. Teng, Siwei Chen, Shang-Wen Luan, Jia-Rui Xu
{"title":"Bidirectional DC-DC Converter with a Wide-Range Voltage Conversion Ratio","authors":"J. Teng, Siwei Chen, Shang-Wen Luan, Jia-Rui Xu","doi":"10.1109/IFEEC47410.2019.9014688","DOIUrl":"https://doi.org/10.1109/IFEEC47410.2019.9014688","url":null,"abstract":"A bidirectional DC-DC converter with a wide- range voltage conversion ratio is proposed in this paper. The characteristic of wide-range voltage conversion ratio can be utilized in the energy conversion of retired batteries, such as electric scooters, electric vehicles, electrical buses, electric trucks etc. with different voltage levels. The proposed converter is composed of cascading a two-phase interleaved half-bridge circuit and a voltage-doubler circuit. The two-phase interleaved half-bridge circuit and the voltage-doubler circuit are defined as terminals A and B, respectively to investigate the operational stages of the proposed converter and analyze the voltage conversion ratios under different voltage-level schemes. Due to the variable structure design and control of the proposed converter, a wide-range voltage converter ratio and bidirectional step-up/step-down function can be achieved. A prototype for the proposed bidirectional DC-DC converter with a rated voltage of 150V at terminal A, a rated voltage between 25V and 1050V at terminal B and a rated power of 1100W is designed and implemented in this paper. Experimental results demonstrate that the proposed bidirectional DC-DC converter can be operated in the different modes with respect to different voltage levels. Meanwhile, the maximum conversion efficiency of above 98% can be achieved.","PeriodicalId":230939,"journal":{"name":"2019 IEEE 4th International Future Energy Electronics Conference (IFEEC)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133169084","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: 5
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