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Evaluation of Inductor Losses on Z-source Inverter Considering AC and DC Components 考虑交流和直流分量的z源逆变器电感损耗评估
2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia) Pub Date : 2018-05-20 DOI: 10.23919/IPEC.2018.8507925
R. Iijima, N. Kamoshida, Rene Alexander Barrera Cardenas, T. Isobe, H. Tadano
{"title":"Evaluation of Inductor Losses on Z-source Inverter Considering AC and DC Components","authors":"R. Iijima, N. Kamoshida, Rene Alexander Barrera Cardenas, T. Isobe, H. Tadano","doi":"10.23919/IPEC.2018.8507925","DOIUrl":"https://doi.org/10.23919/IPEC.2018.8507925","url":null,"abstract":"This paper discusses ac and dc components of inductor losses on Z-source inverters based on theoretical calculation and experimental measurement. Winding loss with considering dc and ac components of flowing current, and core loss under dc bias application were calculated using Dowell’s equation and improved Generalized Steinmetz equation (iGSE) with modification factors for dc bias. The calculated losses were verified by experiments using a 2 kW-class quasi Z-source inverter (QZSI). It is confirmed that the inductor loss is mainly caused by dc winding resistance in the discussed design, and the frequency of the main ac component of the inductor current differs from control frequency. These calculation results have good agreement with the experimental results. Therefore, it is concluded that the discussed loss calculation method can be used to design an optimal inductor for given modulation strategy and control frequency.","PeriodicalId":6610,"journal":{"name":"2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia)","volume":"65 1","pages":"1111-1117"},"PeriodicalIF":0.0,"publicationDate":"2018-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89945626","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
Capacitor Voltage Balancing in Semi-Full-Bridge Submodule with Differential-Mode Choke : (InvitedPaper) 带差模扼流圈的半全桥子模块电容电压平衡研究(受邀论文)
2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia) Pub Date : 2018-05-20 DOI: 10.23919/IPEC.2018.8507511
K. Ilves, Y. Okazaki, Nan Chen, M. Nawaz, A. Antonopoulos
{"title":"Capacitor Voltage Balancing in Semi-Full-Bridge Submodule with Differential-Mode Choke : (InvitedPaper)","authors":"K. Ilves, Y. Okazaki, Nan Chen, M. Nawaz, A. Antonopoulos","doi":"10.23919/IPEC.2018.8507511","DOIUrl":"https://doi.org/10.23919/IPEC.2018.8507511","url":null,"abstract":"This paper presents a semi-full-bridge submodule implementation with an integrated differential-mode choke for modular multilevel converters. The semifull-bridge submodule comprises two capacitors that are connected in either series or parallel to generate a positive voltage, while the capacitors are connected only in parallel to generate a negative voltage. A capacitor voltage difference appearing between two capacitors during the series connection period is inevitable due to the capacitance mismatch. This results in a large current spike during the parallel connection period. The paper evaluates the effect of the differential-mode choke, increased modulation index, and second-order harmonic injection. Numerical analysis indicate that the differential-mode choke can provide significant reduction in the peak current during parallel connection of the capacitors. The numerical results are validated by simulation results from a single semi-full-bridge module as well as a full converter. It is concluded that with proper control and dimensioning of the submodule capacitors and differential-mode choke, the current-spike can be reduced to levels in the same range as the peak arm current.","PeriodicalId":6610,"journal":{"name":"2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia)","volume":"20 1","pages":"2335-2342"},"PeriodicalIF":0.0,"publicationDate":"2018-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86207808","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: 4
Predicting Voltage Characteristic of Charging Model for Li-Ion Battery with ANN for Real Time Diagnosis 基于神经网络的锂离子电池充电模型电压特性实时预测
2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia) Pub Date : 2018-05-20 DOI: 10.23919/IPEC.2018.8507640
M. Bezha, N. Nagaoka
{"title":"Predicting Voltage Characteristic of Charging Model for Li-Ion Battery with ANN for Real Time Diagnosis","authors":"M. Bezha, N. Nagaoka","doi":"10.23919/IPEC.2018.8507640","DOIUrl":"https://doi.org/10.23919/IPEC.2018.8507640","url":null,"abstract":"An adaptive characteristic of charging for the rechargeable batteries using the artificial neural network (ANN) method is proposed in this study. This model is based on the voltage charging data of a Li-Ion battery. By the voltage characteristic of charging data that have been used as a parameter to describe the actual quantity of energy, which is a key factor in applications. This estimation is an important and challenging task. The upcoming Electric Vehicle (EV) or Hybrid Electric Vehicle (HEV), are becoming the most important technology in transportation, because of the Eco-friendly and its increasing driving autonomy. The battery performance directly influences the total performance and efficiency of the BMS for this kind of vehicles. As already confirmed the importance of the battery state of charge (SOC) prediction and the nonlinear characteristic between the battery SOC and the external variables, the neural network model is proposed in order to investigate further. In this approach, the ANN can predict the characteristic of the charging model from the batteries, with the optimized model it can be simulated within a short time and with a high accuracy. Which is a different type of approach to the difficult task of SOC of the battery.","PeriodicalId":6610,"journal":{"name":"2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia)","volume":"6 1","pages":"3170-3175"},"PeriodicalIF":0.0,"publicationDate":"2018-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88878623","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
Improved Load Transient Response of a Dual-Active-Bridge Converter 改进的双有源桥式变换器负载瞬态响应
2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia) Pub Date : 2018-05-20 DOI: 10.23919/IPEC.2018.8507881
Shengzhi Zhou, Chuan Sun, Song Hu, Guo-Tian Chen, Xiaodong Li
{"title":"Improved Load Transient Response of a Dual-Active-Bridge Converter","authors":"Shengzhi Zhou, Chuan Sun, Song Hu, Guo-Tian Chen, Xiaodong Li","doi":"10.23919/IPEC.2018.8507881","DOIUrl":"https://doi.org/10.23919/IPEC.2018.8507881","url":null,"abstract":"In this work, the transient response of a dual-active-bridge (DAB) converter to load-change command is investigated under dual-phase-shift (DPS) control. During the transient process, there might be dc bias current and overshoot current arising in the inductor and transformer due to improper transient modulation. A dedicated transient modulation method is then proposed, which adjusts all phase-shift ratios by referring to a floating reference gating signal. Consequently a fast transient response can be obtained without dc bias current and overshoot current. The dynamic movement of the floating reference signal can be determined easily by a uniformed expression irrespective of the different steady state operation modes. The proposed transient control has been proved through simulation and experimental results.","PeriodicalId":6610,"journal":{"name":"2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia)","volume":" 1","pages":"370-374"},"PeriodicalIF":0.0,"publicationDate":"2018-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72560934","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: 8
Modeling of Unbalanced Three-Phase Grid-Connected Converters with Decoupled Transfer Functions 具有解耦传递函数的不平衡三相并网变流器建模
2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia) Pub Date : 2018-05-20 DOI: 10.23919/ipec.2018.8507652
Wei Liu, Xiongfei Wang, F. Blaabjerg
{"title":"Modeling of Unbalanced Three-Phase Grid-Connected Converters with Decoupled Transfer Functions","authors":"Wei Liu, Xiongfei Wang, F. Blaabjerg","doi":"10.23919/ipec.2018.8507652","DOIUrl":"https://doi.org/10.23919/ipec.2018.8507652","url":null,"abstract":"The unbalanced three-phase passive filters or grid impedances lead to a multiple-input multiple-output (MIMO) dynamic model for grid-connected converters in the stationary αβ-frame. The MIMO system with the couplings between the α-axis and β-axis components complicates the stability analysis and current controller design. This paper thus presents a modeling method that decomposes the MIMO system into two single-input single-output (SISO) transfer functions, which enables to use the classical SISO system tools for the dynamic analysis and controller design. Time-domain simulations and experiments are performed and the results validate the effectiveness of the approach.","PeriodicalId":6610,"journal":{"name":"2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia)","volume":"6 1","pages":"3164-3169"},"PeriodicalIF":0.0,"publicationDate":"2018-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80602098","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: 5
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
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