2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia)最新文献_第5页

Reliability Analysis of Three-Level Neutral Point Clamped Cascaded Converter Used in Advanced Traction Power Supply System 先进牵引供电系统中三电平中性点箝位级联变流器可靠性分析

2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia) Pub Date : 2021-05-24 DOI: 10.1109/ECCE-Asia49820.2021.9478996

Lei Jing, Pengcheng Han, Xiaoqiong He

引用次数: 0

A Design Method for Large-Coupling-Range Series-Series Compensated WPT Systems under Practical Constraints 实际约束下大耦合范围串联-串联补偿WPT系统的设计方法

2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia) Pub Date : 2021-05-24 DOI: 10.1109/ECCE-Asia49820.2021.9479420

W. Zhong, Jingzhi Ren, Min Chen, Dehong Xu

{"title":"A Design Method for Large-Coupling-Range Series-Series Compensated WPT Systems under Practical Constraints","authors":"W. Zhong, Jingzhi Ren, Min Chen, Dehong Xu","doi":"10.1109/ECCE-Asia49820.2021.9479420","DOIUrl":"https://doi.org/10.1109/ECCE-Asia49820.2021.9479420","url":null,"abstract":"The series-series (SS) compensation has been widely adopted by inductively-coupled wireless power transfer (WPT) systems. However, the power transfer capability of an SS WPT system depends on the coupling between the windings. When it operates at the resonant frequency, the SS WPT system may fail to output the required power at a strong coupling position. In practical applications, it is expected that the coupling will change in a large range due to air gap changes and misalignments. Usually, the power transfer capability can be improved by shifting the operating frequency to the splitting frequencies in the strong-coupling region. However, a few practical constraints such as input voltage limit, VA rating limit (or input current limit), operating frequency range, expected rated-output-power coupling range, and soft switching condition, will significantly complicate the design processes of such a system with a large coupling range. This paper proposes a two-end verification method for designing large-coupling-range SS WPT systems under the above practical constraints. Simulation and experimental results are provided to verify the design method.","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":"131270156","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

A Novel Embedded Muti-port Flexible Alternative Current Interconnector for Distribution Network 一种新型嵌入式多端口柔性配电网交流互连器

2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia) Pub Date : 2021-05-24 DOI: 10.1109/ECCE-Asia49820.2021.9479001

Xin Feng, Jianwen Zhang, Jianqiao Zhou, G. Shi, X. Cai

{"title":"A Novel Embedded Muti-port Flexible Alternative Current Interconnector for Distribution Network","authors":"Xin Feng, Jianwen Zhang, Jianqiao Zhou, G. Shi, X. Cai","doi":"10.1109/ECCE-Asia49820.2021.9479001","DOIUrl":"https://doi.org/10.1109/ECCE-Asia49820.2021.9479001","url":null,"abstract":"The widespread utilization of distributed energy resources including distributed generations, energy storage and controllable loads has posed threats to distribution network (DN) in terms of voltage violation, feeder congestion and bidirectional power flow issues. To mitigate the aforementioned problems, flexible AC interconnector (FACI) can be exploited to interconnect feeders in the place of normally open points. FACI can provide functions of continuous active power control and reactive power compensation to enhance the control capability of DN. This paper proposes a novel embedded multi-port FACI (eM-FACI) based on static synchronous compensator, which has advantages of modularity, low cost, high power density, flexible scalability and is capable of decoupled regulation of power flow in multiple feeders. First, topological configuration and operating principles are analyzed. Then inner energy balance mechanism is established and control strategy is proposed. Finally, theoretical analysis and feasibility of eMFACI are validated by a 3.3 kVA protype.","PeriodicalId":145366,"journal":{"name":"2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia)","volume":"181 11 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":"131290108","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

Stability Enhancement Strategy Based on An Improved OSG Method for High-Speed Train-Network System 基于改进OSG方法的高速列车网络系统稳定性增强策略

2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia) Pub Date : 2021-05-24 DOI: 10.1109/ECCE-Asia49820.2021.9479171

Kexin Wang, Peilei Yan, Chunxu Lin, X. Ge

引用次数: 1

Voltage Balancing Control for Four-Switch Three-Phase Active Front-End Rectifier 四开关三相有源前端整流器的电压平衡控制

2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia) Pub Date : 2021-05-24 DOI: 10.1109/ECCE-Asia49820.2021.9479135

Chang-Hsi Tsai, Hung-Chi Chen

引用次数: 1

Increasing Power Density of Single-phase Power Converter by Reduced Passive Components Volume for Short-time Operation 缩短无源元件体积提高单相功率变换器短时间工作功率密度

2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia) Pub Date : 2021-05-24 DOI: 10.1109/ECCE-Asia49820.2021.9478995

Kodai Nishikawa, K. Kusaka, Jun-ichi Itoh

{"title":"Increasing Power Density of Single-phase Power Converter by Reduced Passive Components Volume for Short-time Operation","authors":"Kodai Nishikawa, K. Kusaka, Jun-ichi Itoh","doi":"10.1109/ECCE-Asia49820.2021.9478995","DOIUrl":"https://doi.org/10.1109/ECCE-Asia49820.2021.9478995","url":null,"abstract":"This paper proposes a design concept of short-time rated ripple current for electrolytic capacitors and the concept method of inductors that accepts a magnetic saturation in order to reduce the volume of passive components. The short-time rated ripple current for DC-link capacitors is determined by the operation time of power converters and the transient temperature rise characteristic of the electrolytic capacitors with the ripple current exceeding the rated current. The relation between the operation time of the power converters and the current value of the electrolytic capacitors is derived by the thermal characteristics of the electrolytic capacitors. The thermal characteristics are obtained by the experiment for the temperature measurement of the element of the electrolytic capacitors. Besides, this paper provides the design concept of the grid-connected inductor from the magnetization characteristic of magnetic materials in order to reduce the size. The effect of the reducing inductor volume by 15% is demonstrated by the calculation with the experimental results.","PeriodicalId":145366,"journal":{"name":"2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia)","volume":"19 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":"114512692","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

Small Signal Modeling and Discontinuous Stable Regions of Grid-connected Inverter Based on Pade Approximation 基于Pade逼近的并网逆变器小信号建模及不连续稳定区域

2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia) Pub Date : 2021-05-24 DOI: 10.1109/ECCE-Asia49820.2021.9479140

Fang Liu, Wei Liu, Haodong Wang, Z. Xie, Shuying Yang, Jianing Wang

{"title":"Small Signal Modeling and Discontinuous Stable Regions of Grid-connected Inverter Based on Pade Approximation","authors":"Fang Liu, Wei Liu, Haodong Wang, Z. Xie, Shuying Yang, Jianing Wang","doi":"10.1109/ECCE-Asia49820.2021.9479140","DOIUrl":"https://doi.org/10.1109/ECCE-Asia49820.2021.9479140","url":null,"abstract":"The small signal stability of grid-connected inverter is of great importance, and the state space model is one of the most efficient modeling methods to analyze the small disturbance stability of grid-connected inverters. The proposed small signal modeling of the grid-connected inverter system takes the time delays caused by digital control into consideration, and converts the time delay factor into a rational polynomial with the pade approximation method, so as to establish the state space model of the entire system. Eigenvalue analysis method is used to compare the small disturbance stability of the grid-connected inverter system with or without considering time delays under different environments. Numerical simulation results show that in the grid-connected inverter system with time delays considered, when the strength of the power grid changes, the system has discontinuous stable regions and the small signal model of the system with time delay considered is more accurate and more sensitive to changes in the controller parameters. Finally, Matlab/Simulink simulation results verify the correctness of the proposed theoretical analysis.","PeriodicalId":145366,"journal":{"name":"2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia)","volume":"9 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":"116927864","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

Operation and Control of DC Solid State Transformer With Bipolar LVDC Ports 双极LVDC直流固态变压器的运行与控制

2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia) Pub Date : 2021-05-24 DOI: 10.1109/ECCE-Asia49820.2021.9479151

Xinyi Kong, Lu Li, Jianwen Zhang, Han Wang, Jianqiao Zhou, G. Shi, X. Cai

{"title":"Operation and Control of DC Solid State Transformer With Bipolar LVDC Ports","authors":"Xinyi Kong, Lu Li, Jianwen Zhang, Han Wang, Jianqiao Zhou, G. Shi, X. Cai","doi":"10.1109/ECCE-Asia49820.2021.9479151","DOIUrl":"https://doi.org/10.1109/ECCE-Asia49820.2021.9479151","url":null,"abstract":"DC Solid State Transformer (DCSST) plays a significant role in medium/low voltage DC distribution grid, which functions as changing voltage level and managing power flow between the MVDC distribution grid and the LVDC micro- grid. The conventional DC transformers can only provide single-pole or pseudo-bipolar LVDC ports. Therefore, this paper proposes a bipolar-type DC transformer topology based on NPC (Neutral Point Clamped)-DAB (Dual Active Bridge) and its asymmetric operation control scheme. This topology has bipolar LVDC ports which can meet the requirements of low- voltage users for multiple voltage levels, power safety and reliable supply. The main work of this paper includes: a DC transformer topology with bipolar LVDC ports based on NPC - DAB are proposed; the steady model based on DC current injection are established; the mechanism of bipolar asymmetric operation principle and the method of eliminating DC bias flux in the transformer are analyzed based on the steady model; the dynamic model based on DC injection are established; the asymmetric operation control strategy and the control parameter design method are proposed based on the dynamic model. Finally, the feasibility and effectiveness of the proposed control strategy are verified by MATLAB/Simulink experiment.","PeriodicalId":145366,"journal":{"name":"2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia)","volume":"35 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":"116979244","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

Coordinated Voltage Control of Active Distribution Networks in presence of PV and Energy Storage System 光伏储能有功配电网电压协调控制研究

2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia) Pub Date : 2021-05-24 DOI: 10.1109/ECCE-Asia49820.2021.9479012

Arunima Dutta, S. Ganguly, Chandan Kumar

{"title":"Coordinated Voltage Control of Active Distribution Networks in presence of PV and Energy Storage System","authors":"Arunima Dutta, S. Ganguly, Chandan Kumar","doi":"10.1109/ECCE-Asia49820.2021.9479012","DOIUrl":"https://doi.org/10.1109/ECCE-Asia49820.2021.9479012","url":null,"abstract":"This paper proposes a rule-based model predictive control (MPC) approach to coordinate the operation of distributed generation units (DGU), energy storage systems (ESS), and on-load tap changer (OLTC). The control approach manages the settings of the regulating devices optimally in order to regulate node voltages and minimizes power loss effectively with the aid of minimal control resources. Three rules are devised for MPC on the basis of magnitudes of voltages. The objectives for MPC are changed according to these pre-defined rules. The effectiveness of the proposed approach is tested in a 33-bus distribution network. It has been found that the proposed control scheme could mitigate voltage violations as well as energy loss in both normal and abnormal conditions. Moreover, the performance of the proposed control scheme with ESS is better than without ESS in terms of less usage of control resources, and reduced energy losses. Simulations are also carried out to test the robustness of the control scheme. The performance of the proposed control scheme is further investigated with distributed ESS.","PeriodicalId":145366,"journal":{"name":"2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia)","volume":"227 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":"116373186","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

Multi-mode Hybrid Modulation Strategy for Three-level Converters based on Half-wave Symmetric SHEPWM 基于半波对称SHEPWM的三电平变换器多模混合调制策略

2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia) Pub Date : 2021-05-24 DOI: 10.1109/ECCE-Asia49820.2021.9479391

Xuyang Yan, Bo Guan, Xiong Du

{"title":"Multi-mode Hybrid Modulation Strategy for Three-level Converters based on Half-wave Symmetric SHEPWM","authors":"Xuyang Yan, Bo Guan, Xiong Du","doi":"10.1109/ECCE-Asia49820.2021.9479391","DOIUrl":"https://doi.org/10.1109/ECCE-Asia49820.2021.9479391","url":null,"abstract":"Selective harmonic elimination pulse width modulation (SHEPWM) is a mainstream choice for low switching frequency applications. To realize the entire speed range operation of driving systems, switching between different modes is inevitable. Three-level half-wave symmetric SHEPWM has more control degrees of freedom to deal with various problems, but the phase distribution and switching angle are quite different from quarter-wave symmetric SHEPWM. Thus, some conventional smooth switching methods can not be directly applied to three-level half-wave symmetric SHEPWM to avoid the current impact problem. In this paper, by analyzing the harmonic characteristics of half-wave symmetric SHEPWM and smooth switching conditions, the proper simultaneous switching point is derived, and then a multi-mode hybrid modulation strategy based on half-wave symmetric SHEPWM suitable for three-level converters is obtained. It can avoid the current shock at the switching time under various power factor and modulation ratio. Some numerical analysis and simulation are carried out to prove the correctness and feasibility of the proposed strategy.","PeriodicalId":145366,"journal":{"name":"2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia)","volume":"23 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":"123425459","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