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Roadmap for DC DC路线图
2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe) Pub Date : 2020-09-01 DOI: 10.23919/EPE20ECCEEurope43536.2020.9215749
P. Bauer
{"title":"Roadmap for DC","authors":"P. Bauer","doi":"10.23919/EPE20ECCEEurope43536.2020.9215749","DOIUrl":"https://doi.org/10.23919/EPE20ECCEEurope43536.2020.9215749","url":null,"abstract":"DC grids are considered to be a key technology for the connection, collection and integration of renewable energy resources, for the realization of integrated power systems, for mobile applications (electric ships, aircrafts), for new types of urban and industrial distribution power networks and to bridge and support existing AC systems. Advanced power electronic components, power converters and system protection are enabling DC grids on multiple voltages levels. Especially medium voltage DC grids are expected to play a key role in managing the higher power flows in our future distribution grids. Roadmap for DC and different steps and research at the TUD is presented with focus on DC grids and DC microgrids. Problem of Power Flow control in DC grids is addressed first an Power flow controller introduced. A zonal protection framework where the low voltage dc grid is partitioned according to short-circuit potential and provided degree of protection, and several known protection schemes that ensure selectivity, sensitivity and security will be discussed.","PeriodicalId":241752,"journal":{"name":"2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116177106","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
New High-efficiency Power Generation Using Position Sensor-less Permanent Magnet Synchronous Generator 新型无位置传感器永磁同步发电机高效发电
2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe) Pub Date : 2020-09-01 DOI: 10.23919/EPE20ECCEEurope43536.2020.9215708
S. Takeuchi, Hiroyuki Takahashi, S. Yamada, Y. Kawabata
{"title":"New High-efficiency Power Generation Using Position Sensor-less Permanent Magnet Synchronous Generator","authors":"S. Takeuchi, Hiroyuki Takahashi, S. Yamada, Y. Kawabata","doi":"10.23919/EPE20ECCEEurope43536.2020.9215708","DOIUrl":"https://doi.org/10.23919/EPE20ECCEEurope43536.2020.9215708","url":null,"abstract":"Recently, wind power generation has attracted attention as a system using natural energy. The variable speed control of wind power generation using a permanent magnet synchronous generator (PMSG) is not required exciter and gear, so there is an advantage that low cost and low noise, but they cannot be operated stably because of large output fluctuations. Also, a position sensor for the rotation angle information is required, which is disadvantageous for maintenance and price. In order to solve these problems, this paper investigates a new control scheme that can efficiently generate power without a position sensor. The angle information is estimated mathematically from the information of the output from the generator without position sensors. This sensorless system aims to reduce the operating costs of wind power generation. Specifically, this paper uses an internal electromotive force (EMF) estimation of a generator and a phase locked loop (PLL) system. The angle information is estimated by generating a sine wave synchronized with the sine wave of the internal electromotive force that has the angle information using the PLL system. The internal electromotive force is calculated by focusing on the internal structure of the generator. We will do simulations with the software and experiments to see if this study can be carried out in practice. As a result of simulations and experiments, we were able to estimate the angle information. It was also confirmed that the information was used to control the generator at variable speed and at load change. From the experimental results, it was confirmed that good results could be obtained without using the rotation angle information. The proposed control method can be applied not only to wind power generation but also to various power generation using a position sensor-less.","PeriodicalId":241752,"journal":{"name":"2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe)","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116229759","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
Daisy Chain PN Cell for Multilevel Converter using GaN for High Power Density 用于高功率密度氮化镓多电平变换器的菊花链PN电池
2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe) Pub Date : 2020-09-01 DOI: 10.23919/EPE20ECCEEurope43536.2020.9215648
Faheem Ahmad, A. B. Jørgensen, S. Bęczkowski, S. Munk‐Nielsen
{"title":"Daisy Chain PN Cell for Multilevel Converter using GaN for High Power Density","authors":"Faheem Ahmad, A. B. Jørgensen, S. Bęczkowski, S. Munk‐Nielsen","doi":"10.23919/EPE20ECCEEurope43536.2020.9215648","DOIUrl":"https://doi.org/10.23919/EPE20ECCEEurope43536.2020.9215648","url":null,"abstract":"Power semiconductor devices are achieving high switching speed and high breakdown voltage. This improves inverter performance. But, as inverter improves, further challenge of dv/dt noise is generated that needs to be tackled by filter stage. Multilevel inverters can solve this challenge. But there are implementation complexity associated with multilevel topologies like requirement of multiple isolated DC source, complicated charging algorithm, dedicated sensing hardware. This paper presents a switch capacitor type converter topology enabling a DC-AC three level output. Joining multiple iterations of topology in daisy-chained configuration, the converter can achieve voltage gain with multilevel waveform. Requirement of a single DC supply, with inherent charge balancing capability on capacitor, the topology is well suited for low voltage renewable sources like photovoltaic (PV) or fuel cell. The paper presents design of high frequency commutation loop. Utilizing finite element analysis (FEA) tool ANSYS Electronics Desktop (Q3D) to extract PCB parasitics helps in eliminating prototyping cost and time. Designed inverter is then subjected to continuous load test where it shows improving performance with increasing inductive load.","PeriodicalId":241752,"journal":{"name":"2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123302688","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
Reduced Capacitor Size and On-State Losses in Advanced MMC Submodule Topologies 先进MMC子模块拓扑结构中减小电容器尺寸和On-State损耗
2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe) Pub Date : 2020-09-01 DOI: 10.23919/EPE20ECCEEurope43536.2020.9215722
Christopher Dahmen, R. Marquardt
{"title":"Reduced Capacitor Size and On-State Losses in Advanced MMC Submodule Topologies","authors":"Christopher Dahmen, R. Marquardt","doi":"10.23919/EPE20ECCEEurope43536.2020.9215722","DOIUrl":"https://doi.org/10.23919/EPE20ECCEEurope43536.2020.9215722","url":null,"abstract":"Progress of high power Modular Multilevel Converters (MMC) is of prime importance for many future applications [1]–[5]. Further reduction of power losses and smaller foot-print of the converters requires advanced submodule topologies, well adapted to SiC-power semiconductors and the operating conditions in MMC. The high potential of these measures is investigated and explained using analytical methods – providing general insight. Numerical results, based on commercially available Si- and SiC-modules are presented, demonstrating the essential improvements compared to the state-of-the-art.","PeriodicalId":241752,"journal":{"name":"2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124768089","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
Intelligent High Current Sensor for Various Frequency 各种频率的智能大电流传感器
2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe) Pub Date : 2020-09-01 DOI: 10.23919/EPE20ECCEEurope43536.2020.9215709
B. Skala, V. Kindl, P. Turjanica, Ales Vobornik, L. Poláček, Josef Štengl, Vladimir Pavlicek, J. Fořt
{"title":"Intelligent High Current Sensor for Various Frequency","authors":"B. Skala, V. Kindl, P. Turjanica, Ales Vobornik, L. Poláček, Josef Štengl, Vladimir Pavlicek, J. Fořt","doi":"10.23919/EPE20ECCEEurope43536.2020.9215709","DOIUrl":"https://doi.org/10.23919/EPE20ECCEEurope43536.2020.9215709","url":null,"abstract":"The paper proposes a design procedure of a current sensor. The winding design is analyzed regarding its impact on the operational characteristics and is evaluated for a preferred application. The paper also discusses the measurement results and given frequency characteristic and quality factors of the laboratory prototypes. The sensor is designed for a current up to 200 A and frequency up to 120 kHz. The sensor is equipped with an electronic unit in a common housing. The electronic transducer evaluated the measured data and produces the digital output signals which is easy to transfer even to a long distance.","PeriodicalId":241752,"journal":{"name":"2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121745840","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
System-Level Reliability Analysis of a Repairable Power Electronic-Based Power System Considering Non-Constant Failure Rates 考虑非恒定故障率的可修电力电子电力系统系统级可靠性分析
2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe) Pub Date : 2020-09-01 DOI: 10.23919/EPE20ECCEEurope43536.2020.9215604
A. Davoodi, Yongheng Yang, T. Dragičević, F. Blaabjerg
{"title":"System-Level Reliability Analysis of a Repairable Power Electronic-Based Power System Considering Non-Constant Failure Rates","authors":"A. Davoodi, Yongheng Yang, T. Dragičević, F. Blaabjerg","doi":"10.23919/EPE20ECCEEurope43536.2020.9215604","DOIUrl":"https://doi.org/10.23919/EPE20ECCEEurope43536.2020.9215604","url":null,"abstract":"Conventionally, for reliability studies in power systems, a constant failure rate is assumed for power generation units. If these units consist of power electronic converters, this assumption might not be valid due to the aging of power components, and it will lead to an unrealistic prediction of reliability. On the other hand, at the system-level, commonly-used reliability calculation tools, such as Monte Carlo Simulation (MCS) and Continuous Markov Process (CMP), are either time-consuming or not possible to be applied to the systems with non-constant failure rates. Therefore, in this paper, a methodology is proposed to calculate system-level reliability for a Power-Electronic-based Power System (PEPS), consisting of several converters with non-constant failure rates. By doing so, not only is the effect of mission profiles integrated into the system-level reliability model, but also the wear-out failures and corrective maintenance are considered. Finally, for a case study PEPS, the system-level indices are calculated using the proposed method. It is shown that assuming constant failure rates for PEPS units is inaccurate and misleading. Moreover, the impacts of various factors, e.g., mission profile, repair rate, topology, and rating of converters, on the system-level reliability are investigated and analyzed.","PeriodicalId":241752,"journal":{"name":"2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121748730","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
Design Flow of a Compact High-Frequency DC/DC Converter with Optimum Average Efficiency in a Wide Operation Range 宽工作范围内平均效率最佳的紧凑高频DC/DC变换器设计流程
2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe) Pub Date : 2020-09-01 DOI: 10.23919/EPE20ECCEEurope43536.2020.9215933
M. Nitzsche, M. Zehelein, Julian Weimer, Dominik Koch, J. Roth-Stielow
{"title":"Design Flow of a Compact High-Frequency DC/DC Converter with Optimum Average Efficiency in a Wide Operation Range","authors":"M. Nitzsche, M. Zehelein, Julian Weimer, Dominik Koch, J. Roth-Stielow","doi":"10.23919/EPE20ECCEEurope43536.2020.9215933","DOIUrl":"https://doi.org/10.23919/EPE20ECCEEurope43536.2020.9215933","url":null,"abstract":"The design of an LLC stage for a wide output voltage range imposes stringent challenges regarding electrical and thermal performance. To match these requirements this paper presents the design approach and measurements of a resonant LLC converter stage, optimized for a maximum average efficiency over a wide operating range.","PeriodicalId":241752,"journal":{"name":"2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe)","volume":"21 8","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113964313","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
Dynamic Characteristics Verification of Linear Induction Motor by Simultaneous Propulsion and Levitation Control 线性感应电机同步推进与悬浮控制的动态特性验证
2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe) Pub Date : 2020-09-01 DOI: 10.23919/EPE20ECCEEurope43536.2020.9215800
Shota Nakatani, Daichi Okamori, T. Morizane, H. Omori
{"title":"Dynamic Characteristics Verification of Linear Induction Motor by Simultaneous Propulsion and Levitation Control","authors":"Shota Nakatani, Daichi Okamori, T. Morizane, H. Omori","doi":"10.23919/EPE20ECCEEurope43536.2020.9215800","DOIUrl":"https://doi.org/10.23919/EPE20ECCEEurope43536.2020.9215800","url":null,"abstract":"This paper introduces a magnetic levitation transportation system driven only by linear induction motors. We propose a propulsion and levitation control with two frequency components acting simultaneously and independently. One of the frequency components controls propulsion. The other frequency component controls levitation. Because each controller is non-interfering with each other, this proposed control strategy simplifies the controller. The response of speed and air gap is confirmed by the experiment. As a result, the proposed system is able to control propulsion and levitation simultaneously and independently.","PeriodicalId":241752,"journal":{"name":"2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130018200","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
Vibration suppression and control parameter design of a sensorless PMSM rotary compressor drive 无传感器PMSM旋转压缩机传动的振动抑制及控制参数设计
2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe) Pub Date : 2020-09-01 DOI: 10.23919/EPE20ECCEEurope43536.2020.9215696
Tao Li, Chao Liang
{"title":"Vibration suppression and control parameter design of a sensorless PMSM rotary compressor drive","authors":"Tao Li, Chao Liang","doi":"10.23919/EPE20ECCEEurope43536.2020.9215696","DOIUrl":"https://doi.org/10.23919/EPE20ECCEEurope43536.2020.9215696","url":null,"abstract":"The mechanical vibration and the associated acoustic noise problem of variable frequency rotary compressor systems have been concerned by engineers for years. This paper proposes a scheme to reduce the vibration of a sensorless controlled rotary compressor by using bi-quad filter. The paper presents the overall system control architecture as well as a method to design motor speed adaptation parameters and the bi-quad filter parameters. The impacts of motor parameter variation have been analyzed, too. Both simulation and experiment results show that the bi-quad filter can reduce the mechanical vibration effectively and the way of control parameter selection can guarantee the bandwidth of speed estimation and the stability of the speed control loop. By integrating the result of this paper into an industrial drive control software, automatic control parameter commissioning can be achieved after identifying motor electric parameters, which is a meaningful product feature from an engineering point of view.","PeriodicalId":241752,"journal":{"name":"2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130279069","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
Proposal of Boost converter without reactor using Open-ended Winding PMSM for Photovoltaic Pump System 光伏泵系统无电抗器开放式绕组永磁同步电机升压变换器的设计
2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe) Pub Date : 2020-09-01 DOI: 10.23919/EPE20ECCEEurope43536.2020.9215891
Akihiro Okazaki, Sari Maekawa
{"title":"Proposal of Boost converter without reactor using Open-ended Winding PMSM for Photovoltaic Pump System","authors":"Akihiro Okazaki, Sari Maekawa","doi":"10.23919/EPE20ECCEEurope43536.2020.9215891","DOIUrl":"https://doi.org/10.23919/EPE20ECCEEurope43536.2020.9215891","url":null,"abstract":"The way to use of clean energy is promoted actively, improving this system is important to solve environment issues. In photovoltaic pump system, voltage to work that system is generated by chopper circuit. However, in this system, there is problem that increase of cost and upsizing by chopper circuit for boost converter. In this paper, we propose the system to replace a reactor in chopper circuit with three phase windings of the open-ended winding PMSM.","PeriodicalId":241752,"journal":{"name":"2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124655905","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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