Pub Date : 2020-10-11DOI: 10.1109/ECCE44975.2020.9235940
F. Alvarez-Gonzalez, D. Hewitt, A. Griffo, Jiabin Wang, M. Diab, Xibo Yuan
SiC power devices are gaining increased interest due to their superior performance and increased efficiency in motor drives compared to traditional Si-based IGBT converters. However, the increased switching frequency and much faster switching transients (high dv/dt) of Silicon Carbide (SiC) compared to their IGBT counterparts, can result in increased stress in electrical machines. To quantify these detrimental effects on machine insulation lifetime, a series of tests are conducted on electrical stators representative of typical low voltage machines used in traction and industrial applications. A Design of Experiment (DoE) methodology is employed to identify the test sequence using three stressors. In particular, three values of DC link voltage level, rise time or slew rate of the voltage waveform, and switching frequency, respectively are considered. The paper describes the planned tests and conditions, the insulation health monitoring method employed, and preliminary results.
{"title":"Design of Experiments for Stator Windings Insulation Degradation under High dv/dt and High Switching Frequency","authors":"F. Alvarez-Gonzalez, D. Hewitt, A. Griffo, Jiabin Wang, M. Diab, Xibo Yuan","doi":"10.1109/ECCE44975.2020.9235940","DOIUrl":"https://doi.org/10.1109/ECCE44975.2020.9235940","url":null,"abstract":"SiC power devices are gaining increased interest due to their superior performance and increased efficiency in motor drives compared to traditional Si-based IGBT converters. However, the increased switching frequency and much faster switching transients (high dv/dt) of Silicon Carbide (SiC) compared to their IGBT counterparts, can result in increased stress in electrical machines. To quantify these detrimental effects on machine insulation lifetime, a series of tests are conducted on electrical stators representative of typical low voltage machines used in traction and industrial applications. A Design of Experiment (DoE) methodology is employed to identify the test sequence using three stressors. In particular, three values of DC link voltage level, rise time or slew rate of the voltage waveform, and switching frequency, respectively are considered. The paper describes the planned tests and conditions, the insulation health monitoring method employed, and preliminary results.","PeriodicalId":433712,"journal":{"name":"2020 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128411017","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}
The underwater microgrid is becoming an emerging application for the ocean energy, which integrates ocean current energy converter systems, underwater loads, and the onshore main utility. The multi-layer hierarchical control is employed to maintain the underwater microgrid stability. Under this control architecture, the wireless communication networks between the centralized controller and the local controllers require a detailed evaluation in the underwater environment. This paper evaluates the most conventional wireless communication network technologies for data transmission in the underwater microgrid. First, the different communication modulation technologies and antenna configurations are reviewed and compared in the aspects of the error rate, latency, and capacity. Then, their performances on the frequency restoration by secondary control in the underwater microgrid are evaluated in simulations. The analytical results are dedicated to providing the future research with the innovative insights and the design guidelines.
{"title":"Evaluation of Wireless Communication Networks on Secondary Control in Underwater Microgrid","authors":"Luocheng Wang, Yongjie Guan, Tianze Chen, Ephraim Moges, T. Han, Tiefu Zhao","doi":"10.1109/ECCE44975.2020.9236165","DOIUrl":"https://doi.org/10.1109/ECCE44975.2020.9236165","url":null,"abstract":"The underwater microgrid is becoming an emerging application for the ocean energy, which integrates ocean current energy converter systems, underwater loads, and the onshore main utility. The multi-layer hierarchical control is employed to maintain the underwater microgrid stability. Under this control architecture, the wireless communication networks between the centralized controller and the local controllers require a detailed evaluation in the underwater environment. This paper evaluates the most conventional wireless communication network technologies for data transmission in the underwater microgrid. First, the different communication modulation technologies and antenna configurations are reviewed and compared in the aspects of the error rate, latency, and capacity. Then, their performances on the frequency restoration by secondary control in the underwater microgrid are evaluated in simulations. The analytical results are dedicated to providing the future research with the innovative insights and the design guidelines.","PeriodicalId":433712,"journal":{"name":"2020 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"04 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128502130","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 : 2020-10-11DOI: 10.1109/ECCE44975.2020.9235868
Daifei Zhang, M. Guacci, M. Haider, D. Bortis, J. Kolar, J. Everts
High power EV chargers connected to an AC power distribution bus are employing a three-phase AC/DC Power Factor Correction (PFC) front-end and a series-connected isolated DC/DC converter to efficiently regulate the traction battery voltage and supply the required charging current. In this paper, the component stresses and the design optimization of a novel two-stage three-phase bidirectional buck-boost current DC-link PFC rectifier system, realized solely with SiC power MOSFETs and conveniently requiring only a single magnetic component, are introduced. This topology offers a high efficiency in a wide operating range thanks to the synergetic operation of its two stages, the three-phase buck-type current source rectifier stage and the subsequent three-level boost-type DC/DC-stage, which makes it suitable for on-board as well as off-board charger applications. The calculated voltage and current component stresses of the proposed converter system, considering an output voltage range of 200 to 1000V and up to 10kW of output power, help to identify its operating boundaries, maximizing the utilization of the power semiconductors and of the DC-link inductor. The optimum values of the circuit parameters are selected after evaluating the converter average efficiency $bar eta $ and volumetric power density ρ in the Pareto performance space and analyzing its design space diversity, focusing on the semiconductor losses and on the characteristics of the inductor. Considering typical EV battery charging profiles, i.e. taking both full-load and part-load operation into account, a power converter realization featuring $bar eta = 98.5% $ and ρ =13.9kW/dm3 is achieved.
大功率电动汽车充电器连接在交流配电母线上，采用三相AC/DC功率因数校正(PFC)前端和串联隔离DC/DC变换器，有效调节牵引电池电压并提供所需的充电电流。本文介绍了一种新型的两级三相双向降压-升压电流直流链路PFC整流系统的元件应力和设计优化，该系统完全由SiC功率mosfet实现，方便地只需要一个磁性元件。由于其两级，三相降压型电流源整流器级和随后的三电平升压型DC/DC级的协同运行，该拓扑结构在宽工作范围内提供了高效率，这使得它适用于车载和车载充电器应用。考虑到输出电压范围为200至1000V，输出功率高达10kW，计算出所提出的变换器系统的电压和电流元件应力，有助于确定其工作边界，最大限度地利用功率半导体和直流链路电感。通过在Pareto性能空间中对变换器的平均效率$bar eta $和体积功率密度ρ进行评估，并分析其设计空间分集，重点考虑半导体损耗和电感的特性，选择电路参数的最优值。考虑到典型的电动汽车电池充电曲线，即考虑到满载和部分负载运行，实现了$bar eta = 98.5% $和ρ =13.9kW/dm3的功率转换器。
{"title":"Three-Phase Bidirectional Buck-Boost Current DC-Link EV Battery Charger Featuring a Wide Output Voltage Range of 200 to 1000V","authors":"Daifei Zhang, M. Guacci, M. Haider, D. Bortis, J. Kolar, J. Everts","doi":"10.1109/ECCE44975.2020.9235868","DOIUrl":"https://doi.org/10.1109/ECCE44975.2020.9235868","url":null,"abstract":"High power EV chargers connected to an AC power distribution bus are employing a three-phase AC/DC Power Factor Correction (PFC) front-end and a series-connected isolated DC/DC converter to efficiently regulate the traction battery voltage and supply the required charging current. In this paper, the component stresses and the design optimization of a novel two-stage three-phase bidirectional buck-boost current DC-link PFC rectifier system, realized solely with SiC power MOSFETs and conveniently requiring only a single magnetic component, are introduced. This topology offers a high efficiency in a wide operating range thanks to the synergetic operation of its two stages, the three-phase buck-type current source rectifier stage and the subsequent three-level boost-type DC/DC-stage, which makes it suitable for on-board as well as off-board charger applications. The calculated voltage and current component stresses of the proposed converter system, considering an output voltage range of 200 to 1000V and up to 10kW of output power, help to identify its operating boundaries, maximizing the utilization of the power semiconductors and of the DC-link inductor. The optimum values of the circuit parameters are selected after evaluating the converter average efficiency $bar eta $ and volumetric power density ρ in the Pareto performance space and analyzing its design space diversity, focusing on the semiconductor losses and on the characteristics of the inductor. Considering typical EV battery charging profiles, i.e. taking both full-load and part-load operation into account, a power converter realization featuring $bar eta = 98.5% $ and ρ =13.9kW/dm3 is achieved.","PeriodicalId":433712,"journal":{"name":"2020 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128347390","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 : 2020-10-11DOI: 10.1109/ECCE44975.2020.9235714
Noam Ezra, T. Long
This article introduces a Dual Voltage Flyback converter which overcomes the low efficiency of the conventional Flyback converter over universal mains voltages. The topology comprises of reconfigurable primary power loops enabled by additional state switches. This combination allows the converter to run in parallel or series modes, enhancing the performance at both 230Vac high line and 115Vac low line mains. It reduces the voltage rating of devices, supports two operating points that operate in boundary conduction mode under fixed frequency and improves the utilization of the devices. A 75W, 90Vac-265Vac to 24Vdc converter has been designed and tested. The converter is compatible with efficiency enhancement solutions such as synchronous rectifier and quasi-resonant control presented in this paper. The experimental results show that the proposed converter has a significant performance improvement at universal mains without any additional efficiency enhancer and considerable performance improvement when using synchronous rectifier compared to a conventional Flyback converter. However, solutions that reduce high voltage stress are less beneficial to the suggested topology.
{"title":"Dual Voltage Flyback Topology Operation With Efficiency Enhancers at Dual Voltage Mains","authors":"Noam Ezra, T. Long","doi":"10.1109/ECCE44975.2020.9235714","DOIUrl":"https://doi.org/10.1109/ECCE44975.2020.9235714","url":null,"abstract":"This article introduces a Dual Voltage Flyback converter which overcomes the low efficiency of the conventional Flyback converter over universal mains voltages. The topology comprises of reconfigurable primary power loops enabled by additional state switches. This combination allows the converter to run in parallel or series modes, enhancing the performance at both 230Vac high line and 115Vac low line mains. It reduces the voltage rating of devices, supports two operating points that operate in boundary conduction mode under fixed frequency and improves the utilization of the devices. A 75W, 90Vac-265Vac to 24Vdc converter has been designed and tested. The converter is compatible with efficiency enhancement solutions such as synchronous rectifier and quasi-resonant control presented in this paper. The experimental results show that the proposed converter has a significant performance improvement at universal mains without any additional efficiency enhancer and considerable performance improvement when using synchronous rectifier compared to a conventional Flyback converter. However, solutions that reduce high voltage stress are less beneficial to the suggested topology.","PeriodicalId":433712,"journal":{"name":"2020 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"21 10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128537550","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 : 2020-10-11DOI: 10.1109/ECCE44975.2020.9235890
M. Petit, Hao Zeng, B. Sarlioglu
A spatial control methodology is developed for six-step control based on deadbeat flux control. The methodology includes a spatial z-transform that allows a speed-invariant analysis of command tracking and disturbance rejection properties of six-step operation. Several design options for high-performance six-step controllers are examined, and fundamental trade-offs of six-step controllers such as speed-dependent bandwidths, limitations related to the Nyquist frequency, and critical frequencies for disturbance rejection are investigated. A key result of the analysis is that a fast deadbeat controller can result in lower dynamic stiffness than a low bandwidth or even a quasi-open-loop controller near the fundamental frequency. One way to provide excellent disturbance rejection at these frequencies is to know the disturbances in advance. This can only be achieved for a particular class of disturbances, i.e., repetitive disturbances. Therefore, a spatial repetitive controller is utilized, which can be easily included in the proposed framework.
{"title":"Analysis and Design of Spatial Six-Step Controllers for Permanent Magnet Synchronous Machines","authors":"M. Petit, Hao Zeng, B. Sarlioglu","doi":"10.1109/ECCE44975.2020.9235890","DOIUrl":"https://doi.org/10.1109/ECCE44975.2020.9235890","url":null,"abstract":"A spatial control methodology is developed for six-step control based on deadbeat flux control. The methodology includes a spatial z-transform that allows a speed-invariant analysis of command tracking and disturbance rejection properties of six-step operation. Several design options for high-performance six-step controllers are examined, and fundamental trade-offs of six-step controllers such as speed-dependent bandwidths, limitations related to the Nyquist frequency, and critical frequencies for disturbance rejection are investigated. A key result of the analysis is that a fast deadbeat controller can result in lower dynamic stiffness than a low bandwidth or even a quasi-open-loop controller near the fundamental frequency. One way to provide excellent disturbance rejection at these frequencies is to know the disturbances in advance. This can only be achieved for a particular class of disturbances, i.e., repetitive disturbances. Therefore, a spatial repetitive controller is utilized, which can be easily included in the proposed framework.","PeriodicalId":433712,"journal":{"name":"2020 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129224200","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 : 2020-10-11DOI: 10.1109/ECCE44975.2020.9235934
Yashwanth Dasari, D. Ronanki, S. Williamson
The hybridization of battery and supercapacitors (SCs) forms a highly effective energy storage system (ESS) for the electrified transportation that offers both energy and power at the same time as per the load requirements. However, the SC bank in hybrid ESS (HESS) deficits in delivering power for a longer duration to serve a higher number of transients. To reduce the burden on batteries and the overall system cost, a new auxiliary bank switching strategy for SCs with enhanced power delivery duration is introduced in this paper. A simple power management control is proposed to effectively switch the SCs from parallel to series combinations while serving the dynamic load demands. The key performance of the proposed circuit is holistically evaluated using PLECS simulations and a scaled-down laboratory prototype in terms of maximum power delivery time and SC cell energy utilization. The impact on passive components of the bi-directional converter with proposed architecture in terms of current stress is analyzed in detail. Finally, the suitability of the proposed architecture in HESS for an electric vehicle (EV) is verified on an OPAL-RT real-time simulator under a standard new European driving cycle.
{"title":"Power Management of Supercapacitors using Auxiliary Bank Switching for Hybrid Energy Storage Systems","authors":"Yashwanth Dasari, D. Ronanki, S. Williamson","doi":"10.1109/ECCE44975.2020.9235934","DOIUrl":"https://doi.org/10.1109/ECCE44975.2020.9235934","url":null,"abstract":"The hybridization of battery and supercapacitors (SCs) forms a highly effective energy storage system (ESS) for the electrified transportation that offers both energy and power at the same time as per the load requirements. However, the SC bank in hybrid ESS (HESS) deficits in delivering power for a longer duration to serve a higher number of transients. To reduce the burden on batteries and the overall system cost, a new auxiliary bank switching strategy for SCs with enhanced power delivery duration is introduced in this paper. A simple power management control is proposed to effectively switch the SCs from parallel to series combinations while serving the dynamic load demands. The key performance of the proposed circuit is holistically evaluated using PLECS simulations and a scaled-down laboratory prototype in terms of maximum power delivery time and SC cell energy utilization. The impact on passive components of the bi-directional converter with proposed architecture in terms of current stress is analyzed in detail. Finally, the suitability of the proposed architecture in HESS for an electric vehicle (EV) is verified on an OPAL-RT real-time simulator under a standard new European driving cycle.","PeriodicalId":433712,"journal":{"name":"2020 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129316091","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 : 2020-10-11DOI: 10.1109/ECCE44975.2020.9235837
S. C. S. Júnior, C. Jacobina, E. Fabrício, A. Felinto
This work proposes a new multilevel inverter topology composed of two MPUCs cascaded connected and fed by a single dc-source. This topology can provide 49-levels voltage by using four asymmetrical dc-links, and only twelve power switches. Its smaller dc-links are supplied by a single dc-source via high-frequency transformer (HFT) dealing with 33% of total load power when operating at nominal voltage. Besides that, HFT are smaller and lighter compared with line frequency transformers. This transformer is responsible to balance all dc-links providing required power flow. A Nearest Level Modulation (NLM) and analysis of power distribution among converter modules are presented in details. Besides comparisons with other multilevel topologies using HFT. Simulation and experimental results are presented to validate theoretical studies.
{"title":"A New Asymmetric 49-levels Cascaded MPUC Multilevel Inverter Fed by a Single DC-Source","authors":"S. C. S. Júnior, C. Jacobina, E. Fabrício, A. Felinto","doi":"10.1109/ECCE44975.2020.9235837","DOIUrl":"https://doi.org/10.1109/ECCE44975.2020.9235837","url":null,"abstract":"This work proposes a new multilevel inverter topology composed of two MPUCs cascaded connected and fed by a single dc-source. This topology can provide 49-levels voltage by using four asymmetrical dc-links, and only twelve power switches. Its smaller dc-links are supplied by a single dc-source via high-frequency transformer (HFT) dealing with 33% of total load power when operating at nominal voltage. Besides that, HFT are smaller and lighter compared with line frequency transformers. This transformer is responsible to balance all dc-links providing required power flow. A Nearest Level Modulation (NLM) and analysis of power distribution among converter modules are presented in details. Besides comparisons with other multilevel topologies using HFT. Simulation and experimental results are presented to validate theoretical studies.","PeriodicalId":433712,"journal":{"name":"2020 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129885004","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 : 2020-10-11DOI: 10.1109/ECCE44975.2020.9235604
Yang Peng, Yue Wang, Yonghui Liu, Hang Liu
As one of the most promising control strategies, virtual synchronous generators (VSG) control is studied worldwide and impedance models have been built for VSG by some papers, but most of them overlook the inner loops which can make significant difference to impedance of VSG. This paper establishes the sequence impedance models of VSG with and without inner loops and demonstrates the negative influence of inner loops on dynamic performances in the range of low frequency by the comparison of impedance models of VSG with and without inner loops. Then the paper gives suggestion that virtual resistance should be adopted to the VSG with inner loops to improve stability. Finally, all the theoretical analysis is verified by simulation results.
{"title":"Sequence-Impedance-Based Stability Comparison Between VSGs with and without inner loops control","authors":"Yang Peng, Yue Wang, Yonghui Liu, Hang Liu","doi":"10.1109/ECCE44975.2020.9235604","DOIUrl":"https://doi.org/10.1109/ECCE44975.2020.9235604","url":null,"abstract":"As one of the most promising control strategies, virtual synchronous generators (VSG) control is studied worldwide and impedance models have been built for VSG by some papers, but most of them overlook the inner loops which can make significant difference to impedance of VSG. This paper establishes the sequence impedance models of VSG with and without inner loops and demonstrates the negative influence of inner loops on dynamic performances in the range of low frequency by the comparison of impedance models of VSG with and without inner loops. Then the paper gives suggestion that virtual resistance should be adopted to the VSG with inner loops to improve stability. Finally, all the theoretical analysis is verified by simulation results.","PeriodicalId":433712,"journal":{"name":"2020 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130519962","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 : 2020-10-11DOI: 10.1109/ECCE44975.2020.9235915
Ahmed Hembel, Hao Ding, Leyue Zhang, B. Sarlioglu
The objective of this paper is to design a switched reluctance-based integrated motor-compressor. The proposed reluctance-based machine is a magnet-less machine which adds to the simplicity of machine and lowers the cost as well as allows for higher operating temperature ranges. The rotor of the proposed integrated machine functions both as a rotor of the motor as well as a rotor of an axial-flow compressor. It can rotate to draw air from the ambiance into the rotor and accelerate the flow through the rotor stage. The high-speed flow provides forced convection to the rotor, stator, windings, and magnets. In this work, electromagnetic performance is verified by finite element analysis.
{"title":"Design of a Novel Integrated Switched Reluctance Motor-Compressor","authors":"Ahmed Hembel, Hao Ding, Leyue Zhang, B. Sarlioglu","doi":"10.1109/ECCE44975.2020.9235915","DOIUrl":"https://doi.org/10.1109/ECCE44975.2020.9235915","url":null,"abstract":"The objective of this paper is to design a switched reluctance-based integrated motor-compressor. The proposed reluctance-based machine is a magnet-less machine which adds to the simplicity of machine and lowers the cost as well as allows for higher operating temperature ranges. The rotor of the proposed integrated machine functions both as a rotor of the motor as well as a rotor of an axial-flow compressor. It can rotate to draw air from the ambiance into the rotor and accelerate the flow through the rotor stage. The high-speed flow provides forced convection to the rotor, stator, windings, and magnets. In this work, electromagnetic performance is verified by finite element analysis.","PeriodicalId":433712,"journal":{"name":"2020 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130634393","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 : 2020-10-11DOI: 10.1109/ECCE44975.2020.9235957
Dam Yun, Haneul Kim, Dongwoo Baek, Sangik Cho, Jehyung Yoon, Jungbong Lee
The on-time based synchronous boost converter with a new reverse phase ripple injection (RPRI) compensation method has been presented in order to support high density and high data rate SSD (Solid State Drive) memory. The proposed RPRI compensation method achieves stability with a fast load transient response. Moreover, the proposed adaptive on-time (AOT) generator fixes switching frequency as constant in a continuous conduction mode (CCM). In addition, the proposed RPRI and AOT control method allows smooth mode transition between CCM (Continuous Conduction Mode) and DCM (Discontinuous Conduction Mode) mode. The proposed boost converter is manufactured by BCD 0.13 μm process and the chip size is 2.4 mm × 0.93 mm. The typical input voltage is 3.3V and the output voltage is 12V. We can achieve the measured results that ±1.6% of dynamic load regulation from 1mA to 350mA with 100mA/μs and the peak power efficiency is 90.3%. Also, the proposed boost converter achieves small switching frequency variation of ΔFSW/FSW = 1% in case of 300mA load change.
为了支持高密度、高数据速率的固态硬盘存储，提出了一种基于实时的同步升压变换器，该变换器采用了一种新的反向相位纹波注入(RPRI)补偿方法。所提出的RPRI补偿方法具有快速的负载暂态响应稳定性。此外，所提出的自适应导通(AOT)发生器在连续导通模式(CCM)下将开关频率固定为常数。此外，所提出的RPRI和AOT控制方法允许CCM(连续传导模式)和DCM(间断传导模式)模式之间的平滑模式转换。该升压变换器采用BCD 0.13 μm工艺制造，芯片尺寸为2.4 mm × 0.93 mm。典型输入电压为3.3V，输出电压为12V。实验结果表明，在100mA/μs的速度下，动态负载从1mA调节到350mA的效率为±1.6%，峰值功率效率为90.3%。在300mA负载变化情况下，该升压变换器的开关频率变化较小，为ΔFSW/FSW = 1%。
{"title":"A Fixed-Frequency Synchronous Boost Converter Based on Adaptive On-Time Control with a New Reverse Phase Ripple Injection Compensation","authors":"Dam Yun, Haneul Kim, Dongwoo Baek, Sangik Cho, Jehyung Yoon, Jungbong Lee","doi":"10.1109/ECCE44975.2020.9235957","DOIUrl":"https://doi.org/10.1109/ECCE44975.2020.9235957","url":null,"abstract":"The on-time based synchronous boost converter with a new reverse phase ripple injection (RPRI) compensation method has been presented in order to support high density and high data rate SSD (Solid State Drive) memory. The proposed RPRI compensation method achieves stability with a fast load transient response. Moreover, the proposed adaptive on-time (AOT) generator fixes switching frequency as constant in a continuous conduction mode (CCM). In addition, the proposed RPRI and AOT control method allows smooth mode transition between CCM (Continuous Conduction Mode) and DCM (Discontinuous Conduction Mode) mode. The proposed boost converter is manufactured by BCD 0.13 μm process and the chip size is 2.4 mm × 0.93 mm. The typical input voltage is 3.3V and the output voltage is 12V. We can achieve the measured results that ±1.6% of dynamic load regulation from 1mA to 350mA with 100mA/μs and the peak power efficiency is 90.3%. Also, the proposed boost converter achieves small switching frequency variation of ΔFSW/FSW = 1% in case of 300mA load change.","PeriodicalId":433712,"journal":{"name":"2020 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121143539","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：