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A Novel Islanding Detection Method with Two-phase Magnification Inspection 一种新的两相放大检测孤岛检测方法
2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia) Pub Date : 2018-05-20 DOI: 10.23919/IPEC.2018.8507359
J. Liao, Shun-Hao Yeh, Hong-Tzer Yang
{"title":"A Novel Islanding Detection Method with Two-phase Magnification Inspection","authors":"J. Liao, Shun-Hao Yeh, Hong-Tzer Yang","doi":"10.23919/IPEC.2018.8507359","DOIUrl":"https://doi.org/10.23919/IPEC.2018.8507359","url":null,"abstract":"Energy storage system, solar photovoltaic and wind power generation systems constitute distributed generation (DG) system, which is widely established in recent years. In the grid-connected DG system, the islanding detection function is essential to avoid dangers. However, the existing islanding detection techniques have non-detection zone (NDZ) which is easily affected by local load conditions. This paper proposes a novel islanding detection method integrating with a two-stage magnification inspection approach to facilitate diagnostics of islanding detection in DG systems. Based on the proposed method, the detection time is shortened with NDZ eliminated effectively. Besides, the possibility of malfunction and impact of load conditions are greatly reduced. The proposed method doesn’t need precise parameter setting for different applications. To demonstrate the feasibility of the proposed method, a grid-connected prototype lab system with ratings of 250 W rated power and 200 Vdc/110 Vac voltage is simulated and implemented, a system which involves different load conditions and interference tests. The results indicate that the proposed method can operate reliably and satisfy the IEEE 1547 standard.","PeriodicalId":6610,"journal":{"name":"2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia)","volume":"115 1","pages":"4233-4238"},"PeriodicalIF":0.0,"publicationDate":"2018-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80627363","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
Acoustic Noise Reduction of 12/8 Poles SRM without Efficiency Drop Using Simple Current Waveforms 利用简单电流波形无效率下降的12/8极SRM降噪研究
2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia) Pub Date : 2018-05-20 DOI: 10.23919/IPEC.2018.8507649
K. Kiyota, K. Amei, T. Ohji, Jun Jisaki, Masanobu Nakai
{"title":"Acoustic Noise Reduction of 12/8 Poles SRM without Efficiency Drop Using Simple Current Waveforms","authors":"K. Kiyota, K. Amei, T. Ohji, Jun Jisaki, Masanobu Nakai","doi":"10.23919/IPEC.2018.8507649","DOIUrl":"https://doi.org/10.23919/IPEC.2018.8507649","url":null,"abstract":"One of the major challenging issues of switched reluctance motors (SRMs) is improving of the trade-off relation between the acoustic noise and efficiency without the increase of the system cost. In this paper, some simple current waveforms are proposed to reduce both the 3rd and 6th harmonics radial force component and the rms current using simple look up table. The proposed method is adopted to the 12/8 poles SRM for the industrial application.","PeriodicalId":6610,"journal":{"name":"2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia)","volume":"61 1","pages":"3182-3185"},"PeriodicalIF":0.0,"publicationDate":"2018-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80580294","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
A Study on the Analysis and Control of No-load Characteristics of LLC Resonant Converter for Plasma Process 等离子体过程LLC谐振变换器空载特性分析与控制研究
2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia) Pub Date : 2018-05-20 DOI: 10.23919/IPEC.2018.8507871
Min-Jun Kwon, Woo-Cheol Lee
{"title":"A Study on the Analysis and Control of No-load Characteristics of LLC Resonant Converter for Plasma Process","authors":"Min-Jun Kwon, Woo-Cheol Lee","doi":"10.23919/IPEC.2018.8507871","DOIUrl":"https://doi.org/10.23919/IPEC.2018.8507871","url":null,"abstract":"This study applied an LLC resonant converter with various advantages as a power supply for a plasma process. Owing to the nature of the process, it was necessary to analyze the no-load characteristics of the LLC resonant converter because the plasma power supply has an initial no-load operation. The conventional method for analyzing the characteristics of an LLC resonant converter shows the characteristics of the load condition well, but it is difficult to analyze the characteristics of the no-load condition. Therefore, this study analyzed the no-load characteristics of an LLC resonant converter as a method to consider parasitic components and analyzed them in the time domain. It also describes the control method with a duty ratio by the phase shift for operating the LLC resonant converter as a power supply for the plasma process through the analysis results.","PeriodicalId":6610,"journal":{"name":"2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia)","volume":"25 1","pages":"114-117"},"PeriodicalIF":0.0,"publicationDate":"2018-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81141951","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
Hysteresis Modeling of Magnetic Devices based on Reluctance Network Analysis 基于磁阻网络分析的磁性器件磁滞建模
2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia) Pub Date : 2018-05-20 DOI: 10.23919/IPEC.2018.8507646
Y. Hane, K. Nakamura
{"title":"Hysteresis Modeling of Magnetic Devices based on Reluctance Network Analysis","authors":"Y. Hane, K. Nakamura","doi":"10.23919/IPEC.2018.8507646","DOIUrl":"https://doi.org/10.23919/IPEC.2018.8507646","url":null,"abstract":"In research and development of electrical machines, establishment of a method for quantitatively calculating iron loss including magnetic hysteresis behavior is required. In a previous paper, a novel magnetic circuit model incorporating a play model, which is one of the phenomenological models of magnetic hysteresis, was proposed. It was clear that the proposed model can calculate the hysteresis loop of the magnetic reactor with high speed and accuracy. This paper describes that the play model is applied to reluctance network analysis (RNA), in order to estimate the iron loss of electric machines with more complex shape such as electric motors.","PeriodicalId":6610,"journal":{"name":"2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia)","volume":"74 1","pages":"2426-2429"},"PeriodicalIF":0.0,"publicationDate":"2018-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87637953","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
Series Resonant DC-DC Converter With Dual-Mode Rectifier for PV Microinverters 带双模整流器的串联谐振DC-DC变换器用于光伏微逆变器
2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia) Pub Date : 2018-05-20 DOI: 10.23919/IPEC.2018.8508004
Yanfeng Shen, Huai Wang, Zhan Shen, Yongheng Yang, F. Blaabjerg
{"title":"Series Resonant DC-DC Converter With Dual-Mode Rectifier for PV Microinverters","authors":"Yanfeng Shen, Huai Wang, Zhan Shen, Yongheng Yang, F. Blaabjerg","doi":"10.23919/IPEC.2018.8508004","DOIUrl":"https://doi.org/10.23919/IPEC.2018.8508004","url":null,"abstract":"A new series resonant dc-dc converter is proposed for PV microinverters. Compared to the conventional series resonant converter (SRC), a dual-mode rectifier (DMR) is configured on the secondary side, which allows the proposed converter to achieve a wider gain range with a fixed-frequency phase-shift control. Moreover, the active switches and diodes are turned on with zero-voltage switching (ZVS) and off with zero-current switching (ZCS), respectively, thereby minimizing the switching losses. The operation principle is firstly detailed and then the converter characteristics are analyzed and compared. Finally, a 400-kHz 250-W converter prototype is built and tested to verify the advantages of the proposed converter.","PeriodicalId":6610,"journal":{"name":"2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia)","volume":"64 1","pages":"1788-1792"},"PeriodicalIF":0.0,"publicationDate":"2018-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84364091","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
Improvement of a DC electrical railway simulator using artificial intelligence 基于人工智能的直流电气铁路模拟器的改进
2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia) Pub Date : 2018-05-20 DOI: 10.23919/IPEC.2018.8507568
Á. López-López, R. R. Pecharromán, A. Fernández-Cardador, A. P. Cucala
{"title":"Improvement of a DC electrical railway simulator using artificial intelligence","authors":"Á. López-López, R. R. Pecharromán, A. Fernández-Cardador, A. P. Cucala","doi":"10.23919/IPEC.2018.8507568","DOIUrl":"https://doi.org/10.23919/IPEC.2018.8507568","url":null,"abstract":"Electrical railway simulators play a critical role in mass rapid transit system (MRTS) studies. In most cases, MRTSs are DC-electrified systems which include elements that exhibit different electrical states, i.e. traction substations may be in ON or OFF modes and braking trains may be in power or voltage (rheostat) modes. This adds complexity to the electrical problem to be solved by the simulator.The simulator developed by the authors in previous works includes a module in charge of determining the electrical states of all the elements in the system. The block, based on heuristic rules, demands high computation times under certain circumstances.This paper presents an upgrade of the heuristic block where artificial intelligence (AI) is used to obtain the electrical states of substations and trains. A neural network (NN) classification model is applied and compared with the previous approach by means of set of simulations. The results show that the NN approach outperforms the previous one.","PeriodicalId":6610,"journal":{"name":"2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia)","volume":"51 1","pages":"2534-2539"},"PeriodicalIF":0.0,"publicationDate":"2018-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79803803","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 Deviation Elimination Control Based on Autonomous Current-Sharing Controller for the Parallel-Connected Inverters in AC Microgrids 交流微电网并联逆变器基于自主共流控制器的消差控制
2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia) Pub Date : 2018-05-20 DOI: 10.23919/IPEC.2018.8507423
Y. Guan, W. Feng, B. Wei, Wenzhao Liu, Mingshen Li, C. Vasquez, Josep M. Guerrero
{"title":"A Deviation Elimination Control Based on Autonomous Current-Sharing Controller for the Parallel-Connected Inverters in AC Microgrids","authors":"Y. Guan, W. Feng, B. Wei, Wenzhao Liu, Mingshen Li, C. Vasquez, Josep M. Guerrero","doi":"10.23919/IPEC.2018.8507423","DOIUrl":"https://doi.org/10.23919/IPEC.2018.8507423","url":null,"abstract":"Conventional autonomous current-sharing controller (ACSC) will induce inevitable frequency and voltage magnitude deviations due to the output currents and virtual impedances. Thereby secondary control has been proposed to restore the frequency and voltage magnitude deviations by using communication links. In this paper, an autonomous deviation eliminative control method is proposed for the parallel-connected inverters in AC islanded microgrids in order to simplify the control scheme and to improve power quality and control reliability. Two high-pass filters are included in synchronous-reference-frame virtual impedance loop and are activated in steady-state operation to attenuate frequency and voltage magnitude deviations, meanwhile maintaining the autonomous current-sharing performance among the parallel inverters. Simulation results based on two parallel-connected voltage controlled inverters from Matlab/Simulink verify the effectiveness of the proposed approach in different scenarios.","PeriodicalId":6610,"journal":{"name":"2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia)","volume":"130 6 1","pages":"3678-3683"},"PeriodicalIF":0.0,"publicationDate":"2018-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83540075","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
EEMFs Excited by Signal Injection for Position Sensorless Control of PMSMs and Their Performance Comparison by Using Imaginary Electromotive Force 信号注入励磁电机无位置传感器控制及其虚电动势性能比较
2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia) Pub Date : 2018-05-20 DOI: 10.23919/IPEC.2018.8507860
T. Nimura, Shota Kondo, S. Doki, M. Tomita
{"title":"EEMFs Excited by Signal Injection for Position Sensorless Control of PMSMs and Their Performance Comparison by Using Imaginary Electromotive Force","authors":"T. Nimura, Shota Kondo, S. Doki, M. Tomita","doi":"10.23919/IPEC.2018.8507860","DOIUrl":"https://doi.org/10.23919/IPEC.2018.8507860","url":null,"abstract":"In this paper, Extended Electro-motive Force exited by signal injection, which can be utilized at standstill/Low speed, are discussed. Recently, depending on mathematical expressions for position sensorless control, there are various models of Extended Electromotive Force(EEMF), etc.. By using expression of Imaginary Electromotive Force(IEMF), differences among some models of position sensorless control can easily analyze. In this paper, the IEMF is newly defined including EEMF excited by signal injection, which is evaluated its characteristics. Specifically, we evaluate two types of EEMF excited by signal injection against to the robustness of motor parameters, and finally experiment results are indicated.","PeriodicalId":6610,"journal":{"name":"2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia)","volume":"61 1","pages":"1295-1300"},"PeriodicalIF":0.0,"publicationDate":"2018-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89936213","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
Heat-resistant packaging technology for wide bandgap power devices and thermal reliability testing 宽禁带功率器件的耐热封装技术及热可靠性测试
2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia) Pub Date : 2018-05-20 DOI: 10.23919/IPEC.2018.8507900
K. Suganuma, H. Zhang, S. Nagao, C. Chen, T. Sugahara, A. Shimoyama, A. Suetake
{"title":"Heat-resistant packaging technology for wide bandgap power devices and thermal reliability testing","authors":"K. Suganuma, H. Zhang, S. Nagao, C. Chen, T. Sugahara, A. Shimoyama, A. Suetake","doi":"10.23919/IPEC.2018.8507900","DOIUrl":"https://doi.org/10.23919/IPEC.2018.8507900","url":null,"abstract":"SiC and GaN are attractive wide bandgap semiconductors for the new generation power devices. In order to realize the application in the market, the packaging materials, especially die-attach, has one of the key role as well as the packaging design structure. Ag sinter joining is one of the promising die-attach technologies. The advantages of Ag sintering are excellent heat-resistance, high bonding strength, high heat conductivity, easy handling capability (ambient atmosphere, low temperature and low pressure), and affordability without any nano materials.SiC die-attached made by Ag sinter joining exhibits excellent reliability in power cycling beyond 250 °C (Tjmax). Low temperature and low pressure Ag sintering utilizes its unique reaction with oxygen around 200 °C. The metallization structure both for a SiC die and for a substrate is also critical due to thermal stability and to oxidation. Some features of reliability testing methods will be mentioned in the presentation.","PeriodicalId":6610,"journal":{"name":"2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia)","volume":"51 1","pages":"142-147"},"PeriodicalIF":0.0,"publicationDate":"2018-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78544889","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 800V/14V Soft-switched Converter with Low-Voltage Rating of Switch for xEV applications 一种800V/14V软开关转换器，具有低额定电压开关，适用于xEV应用
2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia) Pub Date : 2018-05-20 DOI: 10.23919/IPEC.2018.8507635
Byeongwoo Kim, Kangsan Kim, Sewan Choi
{"title":"A 800V/14V Soft-switched Converter with Low-Voltage Rating of Switch for xEV applications","authors":"Byeongwoo Kim, Kangsan Kim, Sewan Choi","doi":"10.23919/IPEC.2018.8507635","DOIUrl":"https://doi.org/10.23919/IPEC.2018.8507635","url":null,"abstract":"This paper proposes 800V/14V soft-switched dc/dc converter with low-voltage rating of switch for xEV application. The proposed soft-switched converter has theoretically zero dc magnetizing current offset. Also, low-voltage rating of switches makes it possible to achieve low conduction loss and switching loss. It also achieves ZVS turn-on of all switches over the entire load and input-voltage variation. The proposed converter is compared to some low-voltage dc/dc converters. Experimental results form a 2-kW preliminary lab prototype of the proposed converter will be presented to verify the validity of the proposed concept and operation for xEV applications.","PeriodicalId":6610,"journal":{"name":"2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia)","volume":"45 1","pages":"256-260"},"PeriodicalIF":0.0,"publicationDate":"2018-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76587922","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: 12
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