2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe)最新文献

{"title":"Optimal open loop control for a fast transition from normal to active-short-circuit operation","authors":"Philipp Wagner, Michèle Hirsch, G. Götting, H. Reuss","doi":"10.23919/epe21ecceeurope50061.2021.9570445","DOIUrl":"https://doi.org/10.23919/epe21ecceeurope50061.2021.9570445","url":null,"abstract":"A novel approach for a fast transition to the safe state i.e. active-short-circuit (ASC) based on optimal control prevents the dc-link voltage and the phase currents from exceeding critical limits. Before switching to the ASC, the novel approach controls the permanent-magnet synchronous machine (PSM) to the steady-state short-circuit operational point by assuming the inverter and PSM are still functioning. To design an optimal control pattern, two optimization problem formulations are useful. By finding the dc-link optimal voltage pattern, a critical dc-link voltage overshoot can be minimized. A simplified time-optimal dq-voltage pattern can be used if the dc-link voltage does not have to be taken into account. Simulation results as well as experimental results demonstrate the new approach both in base-speed and field-weakening-area; and compare it to conventional methods like Hard-ASC and Soft-ASC.","PeriodicalId":236701,"journal":{"name":"2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe)","volume":"321 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122617578","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}

{"title":"Observation and simulation of dynamic humidity in power converters for railway applications due to moisture diffusion in plastics","authors":"Oskar Schuster, A. Nagel, B. Laska","doi":"10.23919/epe21ecceeurope50061.2021.9570624","DOIUrl":"https://doi.org/10.23919/epe21ecceeurope50061.2021.9570624","url":null,"abstract":"As environmental conditions influence the lifetime of power semiconductors, understanding microclimates inside converter cabinets is indispensable. We present data from railway converters and observe dynamic humidity during operation. The results are explained by moisture diffusion in plastics and validated by simulation and lead towards refined requirement specifications for power semiconductors.","PeriodicalId":236701,"journal":{"name":"2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122894971","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}

{"title":"Active Damping by State Feedback Control in Induction Motor Drive with Filter","authors":"P. Mishra, Stig Munk-Neilsen, R. Maheshwari, T. Ebel","doi":"10.23919/epe21ecceeurope50061.2021.9570501","DOIUrl":"https://doi.org/10.23919/epe21ecceeurope50061.2021.9570501","url":null,"abstract":"The use of passive LC filters affects the dynamics of rotor-flux-oriented controlled induction motor drive with the inverter output filter. Therefore, a combined control technique has been proposed in this paper, where the state variables of the filter and motor have been controlled using the state-feedback controller and proportional-integral controllers, respectively. The proposed technique has been analyzed and simulation results have been provided for validation.","PeriodicalId":236701,"journal":{"name":"2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe)","volume":"284 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122965285","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}

{"title":"Extended operating region of modular multilevel converters using full-bridge sub-modules","authors":"Ygor Pereira Marca, J. Duarte, M. Roes, K. Wijnands","doi":"10.23919/epe21ecceeurope50061.2021.9570628","DOIUrl":"https://doi.org/10.23919/epe21ecceeurope50061.2021.9570628","url":null,"abstract":"This paper presents an application of modular multilevel converters to remove line-frequency transformers from ultrafast charging stations, reducing cost and volume. The converter analysis with full-bridge sub-modules enables an operating region that converts a medium-voltage grid into a lower voltage DC-bus, ideal for charging batteries rapidly.","PeriodicalId":236701,"journal":{"name":"2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122226770","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}

{"title":"Comparison of magnetic coupling topologies for interleaved multilevel inverters","authors":"Rita Mattar, S. Lefebvre, E. Monmasson, M. Petit, C. Saber, Marwan Ali","doi":"10.23919/epe21ecceeurope50061.2021.9570610","DOIUrl":"https://doi.org/10.23919/epe21ecceeurope50061.2021.9570610","url":null,"abstract":"This paper presents a study and comparison in terms of magnetic circuit sizing for two magnetic coupling topologies for interleaved multilevel inverters: the cyclic cascade and the secondary loop. This comparison includes modeling of both topologies and simulation analysis of the sizing of each of them. The interleaved multilevel inverter is then simulated with the sized magnetic components for the system operating point for both topologies. Then, a secondary loop improvement study is developed and simulated to minimize the sizing current for this topology. Finally, an experimental test bench is presented to test and analyze the experimental results for both topologies for a measurement power point of 10 kW.","PeriodicalId":236701,"journal":{"name":"2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129720343","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}

{"title":"Utilisation of Zero-Sequence Currents in Multi-Phase BLDC Machines for Fault Mitigation - Simulation Study","authors":"R. Sykes, T. Summers, R. Betz, H. Torresan","doi":"10.23919/epe21ecceeurope50061.2021.9570700","DOIUrl":"https://doi.org/10.23919/epe21ecceeurope50061.2021.9570700","url":null,"abstract":"Advancements in power electronics, energy storage, and embedded systems have resulted in electric machines becoming increasingly prevalent in medium-to-large power applications. In safety critical applications, such as transport, there is a greater emphasis placed on the fault tolerance of these machines. This paper looks at a five phase BLDC machine with independent control of each phase through the use of individual converters to drive each phase. A new technique for fault mitigation has been developed and simulated which utilises this converter topology for intrinsic zero-sequence injection in the event of a single open-phase fault.","PeriodicalId":236701,"journal":{"name":"2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128337563","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}

{"title":"High-Power Medium-Voltage Wind Turbine Driven by Converter Solution with Modular Multilevel Structure and Decentralized Battery Integration Operating in Both Grid-Following and Grid-Forming Modes","authors":"G. Gontijo, D. Sera, M. Ricco, L. Mathe, T. Kerekes, R. Teodorescu","doi":"10.23919/epe21ecceeurope50061.2021.9570463","DOIUrl":"https://doi.org/10.23919/epe21ecceeurope50061.2021.9570463","url":null,"abstract":"Upscaling is a trend in the wind-power industry, which means to build wind turbines with increased power ratings and reduced structural costs. With the increased wind-turbine power levels, adopting a medium-voltage structure could be a solution to avoid problems related to high currents such as the intolerably high losses and the necessity of bulky, heavy, and expensive conductors. Moreover, a transformer-less wind turbine could be built due to the medium-voltage levels, which would contribute to the lightness and compactness of the entire solution. The high penetration of renewable-energy sources into the electrical grid leads to the necessity of energy-storage systems to assist in the preservation of the power-system stability. Wind power plants with energy-storage integration can operate in a dispatchable fashion, providing benefits to the operation of the power system such as the frequency-stability support, reduced voltage variations of the weak grid and the improvement of the economic dispatch. Furthermore, the wind-power-plant owner can improve his revenues by having an energy-storage system since it is possible to avoid penalties related to the mismatches between the forecasted power and the generated power, besides the possibility of providing ancillary services to the grid. Moreover, due to the presence of the energy-storage system, the wind power plant can keep active, generating power, if a fault occurs isolating the power plant from the main grid. In this paper, a new converter solution with modular multilevel structure and decentralized battery integration is used to drive a medium-voltage wind turbine. The integration of the batteries into the wind-turbine converter prevents the need of extra converters exclusively dedicated to the batteries. The wind turbine with energy storage can behave as a dispatchable generation when operating in the grid-following mode. In this mode, the wind turbine injects power into the grid according to a desired setpoint. When the wind power plant is isolated from the grid, the wind turbine driven by the new converter solution can operate in a grid-forming mode, absorbing the power generated by other wind turbines without an energy-storage system. In this paper, simulation results are shown illustrating the different operation modes of this new wind-turbine solution.","PeriodicalId":236701,"journal":{"name":"2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe)","volume":"161 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128555494","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}

{"title":"Performance comparison of five-level NPC and ANPC converters in medium voltage drives for hydro power application","authors":"Chengjun Tang, T. Thiringer","doi":"10.23919/epe21ecceeurope50061.2021.9570643","DOIUrl":"https://doi.org/10.23919/epe21ecceeurope50061.2021.9570643","url":null,"abstract":"This paper compares the performance of a five-level neutral-point clamped (NPC) converter and a five-level active neutral-point clamped converter (ANPC) for a medium voltage and variable speed pumped-storage hydropower application. It is found that the ANPC converter has a lower current total harmonic distortion (THD) compared with the NPC converter under the same switching frequency, while the losses are higher. However, the simple structure and the easiness of controlling the DC-link voltage means that the five-level ANPC converter has a high potential in the market of the aforementioned application.","PeriodicalId":236701,"journal":{"name":"2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe)","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124692094","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}

{"title":"Battery electric vehicle (BEV) powertrain modelling and testing for real-time control prototyping platform integration","authors":"Maria Raluca Raia, M. Ruba, C. Martis, C. Husar, G. Sirbu","doi":"10.23919/epe21ecceeurope50061.2021.9570616","DOIUrl":"https://doi.org/10.23919/epe21ecceeurope50061.2021.9570616","url":null,"abstract":"This paper presents a method to virtually evaluate the performances and energy consumption of a battery electric vehicle (BEV) powertrain, whose propulsion is assured by a wound rotor synchronous machine. For that, the powertrain’s subsystems are modeled using Energetic Macroscopic Representation (EMR) concept and adapted for later implementation in a real-time control prototyping platform. Two levels of complexity are developed for the propulsion motor, resulting in two BEV powertrain models. The resulting powertrain models are validated by comparing the simulation results with the experimental measurements obtained from a real Renault ZOE Q90 car. In order to evaluate the accuracy of the models under study, two driving cycles profiles, a mixed urban and extra-urban profile and a highway one, are chosen to characterise the system behaviour under normal and maximum vehicle speed conditions. Furthermore, as the developed powertrain is dedicated to real-time applications, the simulation time of the two proposed models are compared in order to choose the one that computes results with desired accuracy in a reduced amount of time.","PeriodicalId":236701,"journal":{"name":"2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124716831","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}

{"title":"Low-Frequency ripple influence in the P&O MPPT dynamics response applied in the single-stage DABSR DC-AC converter for interfacing PV to single-phase grid","authors":"Daniel Chavez, D. Sal y Rosas","doi":"10.23919/epe21ecceeurope50061.2021.9570561","DOIUrl":"https://doi.org/10.23919/epe21ecceeurope50061.2021.9570561","url":null,"abstract":"This paper proposes a novel strategy of control and modulation in an isolated single-stage Dual Active Bridge Series-Resonant (DABSR) DC-AC converter specifically for solar photovoltaic arrays connected to a single-phase grid (PV2SPG). The Perturb and Observe (P&O) maximum power point tracking (MPPT) algorithm is implemented and analyzed considering the influence of the low-frequency ripple on the PV side. Aiming to compensate the PV voltage, which varies with the temperature, a duty ratio (DR) control is introduced. Besides, the power flow is controlled by phase shift modulation. The DC-AC converter is compared with an analogous DABSR DC-DC converter that does not have the low-frequency ripple problem to validate the proposed control and modulation. The result simulations validate the proposed control and modulation.","PeriodicalId":236701,"journal":{"name":"2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116187349","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}