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

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Stress Evaluation of Different Construction of Flywheel Energy Storage Systems using Double U-core Switched Reluctance Machine as its Driver 双u型开关磁阻电机驱动飞轮储能系统不同结构的应力评估
2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia) Pub Date : 2021-05-24 DOI: 10.1109/ECCE-Asia49820.2021.9479134
F. Shakibapour, P. Rasmussen
{"title":"Stress Evaluation of Different Construction of Flywheel Energy Storage Systems using Double U-core Switched Reluctance Machine as its Driver","authors":"F. Shakibapour, P. Rasmussen","doi":"10.1109/ECCE-Asia49820.2021.9479134","DOIUrl":"https://doi.org/10.1109/ECCE-Asia49820.2021.9479134","url":null,"abstract":"This paper deals with the stress analysis of various shapes of flywheel energy storage systems in conjunction with the double u-core switched reluctance machine. The inquiry is proposed according to the key factors in a flywheel layout including cost, material strength, energy storage capacity, mass and size of flywheel. The purpose of the study is to present a cost-effective flywheel with high efficiency of energy storage, in the absence of any expensive material and complex design. To this end, the analytical results of the tolerable rotational speed and its related amount of stored energy in an aluminum disk flywheel using double u-core switched reluctance machine as its driver has been first obtained. After ensuring the accuracy of the model by comparing the analytical results with those of numerical 3D CAD Workbench, different shapes of flywheel have been scrutinized to present a desired design for the flywheel to operate with high speed double u-core switched reluctance machine. In this investigation, the minimization of energy storage system cost and maximization of the stored energy are considered as the objectives. Moreover, the moment of inertia of the flywheel structure and the tolerable speed of the applied material used in the construction for preventing any failure are defined as the constraints.","PeriodicalId":145366,"journal":{"name":"2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia)","volume":"89 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":"122180531","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
The Magnet Operating Point Estimation Using Thermal Component Ratio Observer in PMSM 基于热成分比观测器的永磁同步电机磁体工作点估计
2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia) Pub Date : 2021-05-24 DOI: 10.1109/ECCE-Asia49820.2021.9479027
M. Jang, K. Akatsu
{"title":"The Magnet Operating Point Estimation Using Thermal Component Ratio Observer in PMSM","authors":"M. Jang, K. Akatsu","doi":"10.1109/ECCE-Asia49820.2021.9479027","DOIUrl":"https://doi.org/10.1109/ECCE-Asia49820.2021.9479027","url":null,"abstract":"This paper proposes a method to estimate both the temperature and the magnetic flux density of the magnet using the thermal equivalent circuit and the magnetic equivalent circuit in PMSM. As a feature of this method, to ensure the robustness of the estimation, the measured temperature of the stator winding is used to compensate for the thermal capacitance in the transient state and the convective heat transfer coefficient in the steady state. The proposed thermal component ratio observer could be an effective method for the initial or constant condition optimization process of the temperature estimation. The advantage of this method is no anxiety affecting the original control system and this method can estimate the magnet operating point in real-time. The simulation and experimental verification have been provided to demonstrate the effectiveness of the proposed method.","PeriodicalId":145366,"journal":{"name":"2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia)","volume":"3 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":"129699124","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
Design of LLC Resonant Converter Based on Planar Transformer 基于平面变压器的LLC谐振变换器设计
2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia) Pub Date : 2021-05-24 DOI: 10.1109/ECCE-Asia49820.2021.9479100
Lingchao Kong, Yaosheng Lu, Yong Wang, Xiao-fen Li
{"title":"Design of LLC Resonant Converter Based on Planar Transformer","authors":"Lingchao Kong, Yaosheng Lu, Yong Wang, Xiao-fen Li","doi":"10.1109/ECCE-Asia49820.2021.9479100","DOIUrl":"https://doi.org/10.1109/ECCE-Asia49820.2021.9479100","url":null,"abstract":"LLC resonant converter has low switching loss and high operating frequency. It can meet the requirement of high power density and high efficiency, thus is suitable for vehicle- mounted DC-DC converter. However, under the heavy load condition of low voltage and high current, LLC resonant converter fails to achieve zero voltage switching (ZVS), resulting in efficiency decrease and deteriorating EMC performance. To solve this problem, this paper analyzes the working mode in the dead time of LLC resonant converter in time domain and proposes a design method of resonant parameters for optimizing ZVS implementation. A planar transformer with integrated synchronous rectification is utilized to reduce the leakage inductance and satisfy the design requirements. Finally, simulation and experimental results verify the rationality of parameter design and the effectiveness of ZVS implementation.","PeriodicalId":145366,"journal":{"name":"2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia)","volume":"1 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":"129868595","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: 3
Three Dimensional Switching Table for Reducing Torque Ripple and Switching Frequency in Direct Torque Controlled Induction Motor Drives 直接转矩控制感应电机驱动中减小转矩脉动和开关频率的三维开关表
2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia) Pub Date : 2021-05-24 DOI: 10.1109/ECCE-Asia49820.2021.9479266
H. K. Ravi, L. Chokkalingam
{"title":"Three Dimensional Switching Table for Reducing Torque Ripple and Switching Frequency in Direct Torque Controlled Induction Motor Drives","authors":"H. K. Ravi, L. Chokkalingam","doi":"10.1109/ECCE-Asia49820.2021.9479266","DOIUrl":"https://doi.org/10.1109/ECCE-Asia49820.2021.9479266","url":null,"abstract":"To minimize the torque ripples in conventional direct torque controlled (DTC) induction motor drives, intermediate voltage space vectors (virtual voltage vectors) can be applied. These virtual voltage vectors are chosen based on the torque error magnitude within a four-level hysteresis band. Thus, the inverter is switched at most four times within the hysteresis band. This increases the average switching frequency of the drive compared to the conventional DTC scheme. In this paper, certain modifications in the switching of the virtual voltage vector are presented. This modification in switching pattern is based on the sign of the slope of the torque error and a novel three-dimensional switching table is also framed accordingly. The performance of the proposed DTC scheme is numerically investigated in MATLAB simulation environment and results are compared with both conventional DTC scheme.","PeriodicalId":145366,"journal":{"name":"2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia)","volume":"3 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":"128608939","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
Passivity Enhancement for LCL-Filtered Grid-Connected Inverter Based on Capacitor Voltage Proportional-Derivative Feedback Active Damping 基于电容电压比例导数反馈有源阻尼的lcl滤波并网逆变器无源增强
2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia) Pub Date : 2021-05-24 DOI: 10.1109/ECCE-Asia49820.2021.9479250
Zongyue Zhao, Hao Yi, Yuguo Li, Xin Jiang, Feng Wang, F. Zhuo
{"title":"Passivity Enhancement for LCL-Filtered Grid-Connected Inverter Based on Capacitor Voltage Proportional-Derivative Feedback Active Damping","authors":"Zongyue Zhao, Hao Yi, Yuguo Li, Xin Jiang, Feng Wang, F. Zhuo","doi":"10.1109/ECCE-Asia49820.2021.9479250","DOIUrl":"https://doi.org/10.1109/ECCE-Asia49820.2021.9479250","url":null,"abstract":"Capacitor voltage feedback is a proven and cost-efficient active damping approach to alleviate the resonance hazard for the grid-connected inverter with LCL-filtered. However, the wide range variation of grid impedance has adverse effect to the damping performance under weak grid, which can even threaten the system stability. To tackle this problem, the capacitor voltage proportional-derivative feedback method is proposed based on passivity theory in this paper, so that the real-part of the inverter output admittance is ensured to be positive within the Nyquist frequency to prevent the instability. Furthermore, the controller parameters design method is presented, which achieves strong robustness and high reliability against the variable grid impedance and fluctuated filter parameters. Finally, the validity of the proposed method is confirmed by the simulation results.","PeriodicalId":145366,"journal":{"name":"2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia)","volume":"114 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":"124778831","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
Rogowski Switch-Current Sensor Self-Calibration on Enhanced Gate Driver for 10 kV SiC MOSFETs 10 kV SiC mosfet增强型栅极驱动器Rogowski开关电流传感器自校准
2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia) Pub Date : 2021-05-24 DOI: 10.1109/ECCE-Asia49820.2021.9478973
S. Mocevic, Jun Wang, R. Burgos, D. Boroyevich
{"title":"Rogowski Switch-Current Sensor Self-Calibration on Enhanced Gate Driver for 10 kV SiC MOSFETs","authors":"S. Mocevic, Jun Wang, R. Burgos, D. Boroyevich","doi":"10.1109/ECCE-Asia49820.2021.9478973","DOIUrl":"https://doi.org/10.1109/ECCE-Asia49820.2021.9478973","url":null,"abstract":"In medium-voltage (MV) applications high-density, high-efficiency converters are necessity. Novel switching-cycle capacitor voltage control (SCCVC) for the modular multilevel converters (MMC) in combination with latest generation of SiC MOSFET devices will enable converters to meet those specifications. To enable SCCVC high-bandwidth Rogowski switch-current sensor (RSCS) is integrated on the gate driver (GD) to serve as peak-current-mode control sensor. Issues of RSCS OpAmp integrator non-idealities have to be resolved in order to achieve high accuracy. Due to often temperature swings and reduced lifetime, mechanical potentiometer is not preferred solution. As an alternative, this paper proposes digital potentiometer (DPOT) as a part of closed-loop self-calibration for RSCS on enhanced GD. Proposed method has high resolution of 98.6μV to eliminate input offset voltages, fast self-calibration finished in maximum 12.45ms, with maximum error of ±2.5A of RSCS current sensor. Experimental results at 6kV, 80A, 10kHz, switching as fast as 100V/ns show great accuracy of RSCS sensor, with minimum drifting.","PeriodicalId":145366,"journal":{"name":"2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia)","volume":"1 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":"126788294","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: 7
An FBSM Capacitor Overvoltage Easing Method by Controlling the Arm Current Commutation of Hybrid MMC 控制混合MMC臂电流换相的FBSM电容器过压缓解方法
2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia) Pub Date : 2021-05-24 DOI: 10.1109/ECCE-Asia49820.2021.9479320
Xiongfeng Fang, Zeyu Hu, Yongfei Xing, J. Xiong, Kai Zhang
{"title":"An FBSM Capacitor Overvoltage Easing Method by Controlling the Arm Current Commutation of Hybrid MMC","authors":"Xiongfeng Fang, Zeyu Hu, Yongfei Xing, J. Xiong, Kai Zhang","doi":"10.1109/ECCE-Asia49820.2021.9479320","DOIUrl":"https://doi.org/10.1109/ECCE-Asia49820.2021.9479320","url":null,"abstract":"The hybrid modular multilevel converter (MMC) is a promising topology for voltage-source converter-based high-voltage direct current (VSC-HVDC) transmission systems. A serious full-bridge submodule (FBSM) overvoltage problem will occur during the dc fault blocking process. FBSMs need to absorb the enormous excess electromagnetic energy stored in the dc side during the dc fault blocking process. Owing to the current commutation process caused by ac voltages, FBSM capacitor voltages of only two arms will increase rapidly at the same time. The energy absorption is unbalanced between arms, which is the leading cause of the FBSM capacitor overvoltage problem. By reducing the reverse-biased voltage of some arms properly, the arm current commutation process is limited. So that the FBSM capacitor voltage increasing will be slowed down. By controlling the FBSM capacitor voltage increasing speed, the energy absorption between arms can be rebalanced.","PeriodicalId":145366,"journal":{"name":"2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia)","volume":"101 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":"129341030","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
Average Modeling of Dual-side LCC Resonant Converter with Semi-bridgeless Active Rectifier 半无桥有源整流器双侧LCC谐振变换器的平均建模
2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia) Pub Date : 2021-05-24 DOI: 10.1109/ECCE-Asia49820.2021.9479347
Huang Li, Boshen Zhang, Junzhong Xu, Xin Liu, Xijun Yang, Fei Gao
{"title":"Average Modeling of Dual-side LCC Resonant Converter with Semi-bridgeless Active Rectifier","authors":"Huang Li, Boshen Zhang, Junzhong Xu, Xin Liu, Xijun Yang, Fei Gao","doi":"10.1109/ECCE-Asia49820.2021.9479347","DOIUrl":"https://doi.org/10.1109/ECCE-Asia49820.2021.9479347","url":null,"abstract":"Dual-side LCC has been widely adopted in wireless power transfer (WPT) system due to its constant output current characteristic. In this paper, a new duty cycle control strategy based on dual-side LCC resonant converter is proposed. Under this control strategy, gate signals of the primary and secondary side don’t need synchronization, reducing system complexity and cost. Besides, working modes analysis based on duty cycle control strategy is presented, and an average modeling is performed. The viability of the control strategy has been validated by simulation and experimental results.","PeriodicalId":145366,"journal":{"name":"2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia)","volume":"31 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":"124002580","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
Analytical Controller Synthesis Techniques for Integral Dominant Dual-Loop Stationary Frame Voltage Regulators 积分优势双环固定框架稳压器的分析控制器综合技术
2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia) Pub Date : 2021-05-24 DOI: 10.1109/ECCE-Asia49820.2021.9479457
H. Siraj, B. Mcgrath, I. Nutkani
{"title":"Analytical Controller Synthesis Techniques for Integral Dominant Dual-Loop Stationary Frame Voltage Regulators","authors":"H. Siraj, B. Mcgrath, I. Nutkani","doi":"10.1109/ECCE-Asia49820.2021.9479457","DOIUrl":"https://doi.org/10.1109/ECCE-Asia49820.2021.9479457","url":null,"abstract":"This paper presents analytical synthesis relationships for cascaded dual loop voltage regulated voltage source inverters (VSIs) incorporating second order inductive-capacitive (LC) filters with integral-dominant frequency response characteristics. This family of control system is characterized by improved stability properties with a passive terminal impedance characteristic to provide better robustness in grid-tied scenarios. The synthesis technique is developed in the Laplace domain and accounts for the outer and inner loop controllers, active damping of the LC resonance and transport delay due to the modulator. Bode frequency analysis enables selection of the outer loop voltage regulator parameters, and consequently enforces a damping condition on the inner-loop current regulator. Matching discrete time pole-zero maps and switched PSIM simulations validate the synthesis strategy.","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":"114082278","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: 3
Rotor Optimization for Two-phase High-speed Switched Reluctance Motor 两相高速开关磁阻电机转子优化设计
2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia) Pub Date : 2021-05-24 DOI: 10.1109/ECCE-Asia49820.2021.9479399
Yingjie He, Ying Tang, Haotian Xie, Dongliang Ke, Fengxiang Wang
{"title":"Rotor Optimization for Two-phase High-speed Switched Reluctance Motor","authors":"Yingjie He, Ying Tang, Haotian Xie, Dongliang Ke, Fengxiang Wang","doi":"10.1109/ECCE-Asia49820.2021.9479399","DOIUrl":"https://doi.org/10.1109/ECCE-Asia49820.2021.9479399","url":null,"abstract":"The rotor structure of a 2-phase switched reluctance motor (SRM) for high-speed application is optimized in this paper. The concave sections between the two adjacent salient rotor poles are padded with non-magnetic material to form a cylindrical shape for the reduction of the windage loss at high-speed operation by reducing the whirlpool inside the air pocket without introducing effect on electromagnetic aspect. Furthermore, instead of the approximated mathematical calculation, the three-dimensional computational fluid dynamics (CFD) results are explicitly demonstrated to explain the advantage of the modified rotor structure. Finally, a prototype motor running up to 30000 r/min is driven by an AC/DC rectifier to verify the feasibility of the whole system.","PeriodicalId":145366,"journal":{"name":"2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia)","volume":"76 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":"114311508","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
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