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2022 International Conference on Power Energy Systems and Applications (ICoPESA)最新文献

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Model Reference Adaptive Control Strategy for Dual Active Bridge Converter with Improved Reference Model 基于改进参考模型的双有源桥式变换器模型参考自适应控制策略
2022 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2022-02-25 DOI: 10.1109/ICoPESA54515.2022.9754459
Han Yang, Lihui Yang
{"title":"Model Reference Adaptive Control Strategy for Dual Active Bridge Converter with Improved Reference Model","authors":"Han Yang, Lihui Yang","doi":"10.1109/ICoPESA54515.2022.9754459","DOIUrl":"https://doi.org/10.1109/ICoPESA54515.2022.9754459","url":null,"abstract":"An essential requirement for dual active bridge (DAB) converters is with good dynamic performance under all operating conditions. In this paper, an improved model reference adaptive control strategy (IMRAC) based on unified phase-shift (UPS) scheme is proposed for DAB converters, to improve its dynamic performance. By the form of state feedback, an error feedback is added to the reference model of traditional model reference adaptive control (MRAC), so that the proposed IMRAC can not only ensure the global stability of the system, but improve the dynamic performance of MRAC strategy. Finally, the simulation results verify the effectiveness of the proposed strategy.","PeriodicalId":142509,"journal":{"name":"2022 International Conference on Power Energy Systems and Applications (ICoPESA)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126601131","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
Comparison on Frequency Stability of High Inverter Penetration Power System with Different Grid-forming Controls 不同成网控制下高逆变器侵彻电力系统频率稳定性比较
2022 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2022-02-25 DOI: 10.1109/ICoPESA54515.2022.9754388
Chenyang Li, Yongzhang Huang, Hongyuan Deng, Xinyue Zhang
{"title":"Comparison on Frequency Stability of High Inverter Penetration Power System with Different Grid-forming Controls","authors":"Chenyang Li, Yongzhang Huang, Hongyuan Deng, Xinyue Zhang","doi":"10.1109/ICoPESA54515.2022.9754388","DOIUrl":"https://doi.org/10.1109/ICoPESA54515.2022.9754388","url":null,"abstract":"With the penetration rate of renewable energy has been rapidly increasing in power system, synchronous generators (SGs) are gradually replaced by power electronics. However, wind turbines and photovoltaics nearly have none moment of inertia, they exhibit grid-following characteristics and can’t provide effective support. As a result, grid-forming inverters (GFMs) are proposed for improving the grid stability. In this article, the transient response of GFMs with droop and virtual synchronous generator (VSG) methods are studied, and motor-generator pair (MGP) with improved power control is proposed as a novel grid-forming method. Frequency stability of grid-forming inverters, SGs and MGPs considering control delay and current limitations are studied through IEEE standard 3-generator 9-bus system to demonstrate the differences between grid-forming methods and required characteristics for frequency stability, this article provides a broader view for grid-forming.","PeriodicalId":142509,"journal":{"name":"2022 International Conference on Power Energy Systems and Applications (ICoPESA)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114905161","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
Mechanism Analysis and Enhancement Methods for Instability of LCC-HVDC System Caused by Series Compensation and STATCOMs 串联补偿和statcom引起LCC-HVDC系统失稳的机理分析及增强方法
2022 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2022-02-25 DOI: 10.1109/ICoPESA54515.2022.9754485
Haitao Xia, Lerong Hong, Xiaoping Zhou, Hanhang Yin, Yifeng Liu, Renlong Zhu, Lingfeng Deng
{"title":"Mechanism Analysis and Enhancement Methods for Instability of LCC-HVDC System Caused by Series Compensation and STATCOMs","authors":"Haitao Xia, Lerong Hong, Xiaoping Zhou, Hanhang Yin, Yifeng Liu, Renlong Zhu, Lingfeng Deng","doi":"10.1109/ICoPESA54515.2022.9754485","DOIUrl":"https://doi.org/10.1109/ICoPESA54515.2022.9754485","url":null,"abstract":"The mechanisms of LCC-HVDC system instability stimulated by series compensation (SC) and multiple STATCOMs are analyzed in this paper. The movement of dominant poles (MDPs) reveal that the SC will add a pair of mid-frequency poles to the system and deteriorate the system stability. For STATCOMs, increasing their online numbers will move the system poles at mid-frequency to left half plan (LHP) but move that at high frequency to the right half plan (RHP). Then, two approaches that can respectively improve the mid-frequency and high-frequency characteristic of the LCC-HVDC system are discussed, the effectiveness of which is verified by the simulation results of PSCAD/EMTDC.","PeriodicalId":142509,"journal":{"name":"2022 International Conference on Power Energy Systems and Applications (ICoPESA)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122614209","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
Research on Health Management of IGBT Based on Mechanism Model 基于机制模型的IGBT健康管理研究
2022 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2022-02-25 DOI: 10.1109/ICoPESA54515.2022.9754399
Guoqing Xu, Shengpeng Li, Luhai Zheng, Zhengyun Pan, Chen She, H Zhao, Lingfeng Shao
{"title":"Research on Health Management of IGBT Based on Mechanism Model","authors":"Guoqing Xu, Shengpeng Li, Luhai Zheng, Zhengyun Pan, Chen She, H Zhao, Lingfeng Shao","doi":"10.1109/ICoPESA54515.2022.9754399","DOIUrl":"https://doi.org/10.1109/ICoPESA54515.2022.9754399","url":null,"abstract":"Temperature sensitive electrical parameter method is widely used in junction temperature detection of power devices because of its non-contact and high sensitivity. However, the junction temperature model based on the least square method or neural network may deviate from the semiconductor physics of the device. In this paper, a \"voltage rise time - collector current -junction temperature\" detection model based on the switching process mechanism model of power devices is discussed. Based on semiconductor physics, the monotonic relationship between collector current and voltage rise time is analyzed and discussed, and its mechanism model is determined at different temperatures. Finally, a junction temperature model based on the mechanism model is established by using the high-power IGBT H-bridge inverter circuit test platform to verify the theoretical analysis. At the same time, it is verified that the aging analysis of power devices can also be discussed by mechanism model. The experimental results show that the relationship between IGBT collector current and voltage rise time is hyperbolic, and the rise time of collector current and voltage is unique and definite at each junction temperature. When IGBT aging occurs, the curve deviates from that of normal IGBT. And the IGBT junction temperature test results will produce a large error.","PeriodicalId":142509,"journal":{"name":"2022 International Conference on Power Energy Systems and Applications (ICoPESA)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129699898","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 Rotary Wireless Power Transfer Topology with Constant Voltage Output for Oil and Gas Well 一种用于油气井的具有恒压输出的旋转无线传输拓扑结构
2022 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2022-02-25 DOI: 10.1109/ICoPESA54515.2022.9754436
L. Ji, Ming Zhang, Jingxuan Ma, Buren Qian
{"title":"A Rotary Wireless Power Transfer Topology with Constant Voltage Output for Oil and Gas Well","authors":"L. Ji, Ming Zhang, Jingxuan Ma, Buren Qian","doi":"10.1109/ICoPESA54515.2022.9754436","DOIUrl":"https://doi.org/10.1109/ICoPESA54515.2022.9754436","url":null,"abstract":"Among the power supply methods of deep down-hole equipment, wireless power transfer (WPT) technology has unique advantages compared with traditional power transfer methods. For rotating drilling equipment, it is necessary to overcome the changes in system performance caused by coil offset. At the same time, a constant voltage (CV) output under a wide temperature range is realized to ensure the safety of electrical equipment in a complex deep down-hole environment. Based on the multilayer disc coil structure, this paper presents a hybrid topological structure with high anti-offset performance. It proposes an impedance network matching method to achieve a CC output independent of the load, which not only avoids complex communication, but also prevents the intervention of complex control means. The effectiveness of the proposed design method is verified by simulation and experiment. It shows that when the coil is axially offset by 200% from the initial position, the voltage change rate is not higher than 7.4%, which is less than the preset value (10%), and basically remains unchanged. On this basis, the overall efficiency of the wireless charging system is not less than 94.8%, realizing high-efficiency power transmission in deep down-hole.","PeriodicalId":142509,"journal":{"name":"2022 International Conference on Power Energy Systems and Applications (ICoPESA)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126217470","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
Protection System of Multi-Terminal MMC-based HVDC Grids: A Survey 基于mmc的多端直流电网保护系统研究
2022 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2022-02-25 DOI: 10.1109/ICoPESA54515.2022.9754409
S.H. Ashrafi Niaki, Zhou Liu, Zhe Chen, B. Bak‐Jensen, S. Hu
{"title":"Protection System of Multi-Terminal MMC-based HVDC Grids: A Survey","authors":"S.H. Ashrafi Niaki, Zhou Liu, Zhe Chen, B. Bak‐Jensen, S. Hu","doi":"10.1109/ICoPESA54515.2022.9754409","DOIUrl":"https://doi.org/10.1109/ICoPESA54515.2022.9754409","url":null,"abstract":"Fast development of High Voltage Direct Current (HVDC) technology has been remarkable over the past decades. Multi-terminal HVDC grids based on Voltage Source Converters (VSC) are promising solution to connect multiple asynchronous power grids, as well as integrate large-scale renewable energy sources e.g. offshore wind farms. New generation of the VSCs, Modular Multilevel Converter (MMC), offers considerable benefits. However, protection has always been a great challenge for the VSC-HVDC transmission systems, in particular, for the multi-terminal DC grids. This paper presents an insightful survey considering protection strategies for MMC-HVDC grids. The study sheds light on state-of-the-art of protection scheme including fault identification and interruption methods for the MMC-HVDC systems. Moreover, a short discussion regarding HVDC grid topologies and control has been presented to investigate their impacts on protection and security of the VSC-HVDC grids. Investigation of Fault-Ride-Through (FRT) capability is vital to be included in protection coordination strategies under DC fault conditions. Possibility of having different DC FRT capabilities for different structures of the MMCs is investigated. In addition, pros and cons of protection strategies are presented and discussed comprehensively.","PeriodicalId":142509,"journal":{"name":"2022 International Conference on Power Energy Systems and Applications (ICoPESA)","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128034028","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
Impedance Transfer Functions Fitting Methods of Grid-connected Inverters: Comparison and Application 并网逆变器阻抗传递函数拟合方法的比较与应用
2022 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2022-02-25 DOI: 10.1109/ICoPESA54515.2022.9754427
Yonggang Li, Qiyu Liu, Binyuan Wu, Yue Wang, Q. Huang
{"title":"Impedance Transfer Functions Fitting Methods of Grid-connected Inverters: Comparison and Application","authors":"Yonggang Li, Qiyu Liu, Binyuan Wu, Yue Wang, Q. Huang","doi":"10.1109/ICoPESA54515.2022.9754427","DOIUrl":"https://doi.org/10.1109/ICoPESA54515.2022.9754427","url":null,"abstract":"This paper presents a detailed comparison and practical application among Vector Fitting, Complex Curve Fitting, and Matrix Pencil for the impedance transfer functions fitting of grid-connected inverters. Firstly, the theoretical principles of each method are briefly introduced. Secondly, all methods’ computational performances and fitting accuracy are compared through a grid-connected inverter model built in hardware in the loop real-time simulation platform. Finally, the results of fitting are applied in the analysis of harmonic stability, the effectiveness and practicability of fitting methods are further verified and expanded.","PeriodicalId":142509,"journal":{"name":"2022 International Conference on Power Energy Systems and Applications (ICoPESA)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132017089","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 Variable Coefficient Overspeed Load Shedding Control for Frequency Regulation Based on Feedforward Control 基于前馈控制的变频变系数超速减载控制
2022 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2022-02-25 DOI: 10.1109/ICoPESA54515.2022.9754419
Baocong Lin, Xiaoliang Zhang, J. Bu, Minghui Yin
{"title":"A Variable Coefficient Overspeed Load Shedding Control for Frequency Regulation Based on Feedforward Control","authors":"Baocong Lin, Xiaoliang Zhang, J. Bu, Minghui Yin","doi":"10.1109/ICoPESA54515.2022.9754419","DOIUrl":"https://doi.org/10.1109/ICoPESA54515.2022.9754419","url":null,"abstract":"Under turbulent wind conditions, the participation of wind turbines in frequency regulation not only needs to consider the demand on the load side but also the power fluctuation caused by wind conditions. This greatly increases the difficulty of wind turbines participating in grid frequency regulation. In this regard, this paper proposes a variable coefficient overspeed load shedding control strategy based on feedforward control. This strategy introduces a correction link of wind power fluctuation, so that the load shedding coefficient Kd can be periodically corrected with the change of wind speed, thereby effectively smooths wind power fluctuations. Finally, it is verified by simulation that the frequency improvement effect of this strategy is significantly improved compared with the traditional control.","PeriodicalId":142509,"journal":{"name":"2022 International Conference on Power Energy Systems and Applications (ICoPESA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128824977","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
SOH Balancing Scheme of Distributed Battery Energy Storage System in AC Microgrid Based on Improved Droop Control 基于改进下垂控制的交流微电网分布式电池储能系统SOH平衡方案
2022 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2022-02-25 DOI: 10.1109/ICoPESA54515.2022.9754386
Qingfeng Wu, Xiaolin Zhu, Liqun Liu, Shaojuan Yu, Yutong Chen
{"title":"SOH Balancing Scheme of Distributed Battery Energy Storage System in AC Microgrid Based on Improved Droop Control","authors":"Qingfeng Wu, Xiaolin Zhu, Liqun Liu, Shaojuan Yu, Yutong Chen","doi":"10.1109/ICoPESA54515.2022.9754386","DOIUrl":"https://doi.org/10.1109/ICoPESA54515.2022.9754386","url":null,"abstract":"Droop control is usually applied to the control of distributed battery energy storage system (DBESS) inverter in islanded AC microgrid to realize automatic load sharing and autonomous operation of microgrid. State of charge (SOC) balancing scheme is usually used in battery management system of microgrid to extend the service life of DBESS. However, the conventional droop control and SOC balancing scheme cannot realize the SOH balancing of DBESS. SOH unbalancing will reduce the service life and increase the maintenance burden of DBESS. Besides, the existing SOH balancing schemes are not based on droop control, require the central controller and cannot achieve the SOH balancing among DBESS packages. Therefore, a SOH balancing scheme based on improved P-f droop control is proposed. In this scheme, multi-agent technology is introduced, and each DBESS is regarded as one agent. Through the interaction of depth of discharge (DOD) information among DBESS agents, the output active power of DBESS inverter is adjusted according to the state of SOH. Then, the SOH balancing among DBESS packages is realized. Finally, the simulation and experimental results verify the effectiveness of the proposed scheme.","PeriodicalId":142509,"journal":{"name":"2022 International Conference on Power Energy Systems and Applications (ICoPESA)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115709982","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
Comparative Evaluation and Analysis of Packaging Material System and Parallel Package Method Based on Interleaved Planar SiC Power Module 基于交错平面SiC功率模块的封装材料体系与并行封装方法的比较评价与分析
2022 International Conference on Power Energy Systems and Applications (ICoPESA) Pub Date : 2022-02-25 DOI: 10.1109/ICoPESA54515.2022.9754408
Wenjie Xu, Yongmei Gan, Z. Cheng, Fengtao Yang, Laili Wang
{"title":"Comparative Evaluation and Analysis of Packaging Material System and Parallel Package Method Based on Interleaved Planar SiC Power Module","authors":"Wenjie Xu, Yongmei Gan, Z. Cheng, Fengtao Yang, Laili Wang","doi":"10.1109/ICoPESA54515.2022.9754408","DOIUrl":"https://doi.org/10.1109/ICoPESA54515.2022.9754408","url":null,"abstract":"Silicon carbide as a representative of the wide band gap semiconductor materials have excellent characteristics, but because the silicon carbide device packaging structure is mostly the same as Si device, and in practical use, Silicon carbide devices often need to withstand higher temperature and more severe mechanical stress, so its reliability is facing severe challenges. Based on the recently proposed interleaved planar packaging structure, this paper simulates the silicon carbide power module packaging material system, and on this basis, further studies the reliability of horizontal and longitudinal parallel power modules.","PeriodicalId":142509,"journal":{"name":"2022 International Conference on Power Energy Systems and Applications (ICoPESA)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114488347","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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