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Precise PV active power — Converter control rapid prototyping framework 精确的PV有功功率-转换器控制快速原型框架
2017 International Symposium on Power Electronics (Ee) Pub Date : 2017-10-01 DOI: 10.1109/PEE.2017.8171708
Porobić Vlado, Adžić Evgenije, Grabić Stevan, Vekić Marko, Rapaić Milan
{"title":"Precise PV active power — Converter control rapid prototyping framework","authors":"Porobić Vlado, Adžić Evgenije, Grabić Stevan, Vekić Marko, Rapaić Milan","doi":"10.1109/PEE.2017.8171708","DOIUrl":"https://doi.org/10.1109/PEE.2017.8171708","url":null,"abstract":"This paper deals with photovoltaic converter not including maximum power point tracking (MPPT), but precise active power tracking (PAPT) operational mode. There is considered control deployment for boost converter (four-phase interleaved), as an essential part of common two-stage grid-connected photovoltaic system. The control code is developed and tested by means of MATLAB autocoding generation and specially designated embedded oscilloscope functions for DSP, together with Hardware-in-the-Loop emulator device. Described rapid prototyping framework is successfully employed for the unconventional PV control algorithm development.","PeriodicalId":243099,"journal":{"name":"2017 International Symposium on Power Electronics (Ee)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130085197","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
Stress reduction in high voltage MIS capacitor fabrication 高压MIS电容器制造中的应力减小
2017 International Symposium on Power Electronics (Ee) Pub Date : 2017-10-01 DOI: 10.1109/PEE.2017.8171664
S. Banzhaf, J. Kenntner, M. Grieb, S. Schwaiger, T. Erlbacher, A. Bauer, L. Frey
{"title":"Stress reduction in high voltage MIS capacitor fabrication","authors":"S. Banzhaf, J. Kenntner, M. Grieb, S. Schwaiger, T. Erlbacher, A. Bauer, L. Frey","doi":"10.1109/PEE.2017.8171664","DOIUrl":"https://doi.org/10.1109/PEE.2017.8171664","url":null,"abstract":"Metal-insulator-semiconductor capacitors used as a RC snubber attenuate voltage overshoots which may occur during switching phases. These devices feature good temperature stability up to 200°C and can be integrated very close to power switches on the same transfer substrate. As the capacitors need to withstand high voltages in most applications, thick dielectric layers have to be used, causing significant amount of wafer bow during processing. A dielectric stress compensation structure on the back side of the wafers is therefore introduced and shown to reduce the resulting wafer bow by up to 50%. Planar MIS capacitors using a 1 μm thick dielectric layer stack achieve dielectric breakdown voltages of up to 1000 V along with capacitance densities of 5.4 nF/cm2. In comparison, devices with a dielectric layer thickness of 250 nm exhibit a capacitance density of 13.6 nF/cm2 and a resulting dielectric breakdown voltage of 250 V.","PeriodicalId":243099,"journal":{"name":"2017 International Symposium on Power Electronics (Ee)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126725670","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
Rotor slot harmonics based induction machine speed estimation 基于转子槽谐波的感应电机转速估计
2017 International Symposium on Power Electronics (Ee) Pub Date : 2017-10-01 DOI: 10.1109/PEE.2017.8171680
Popadic Bane, Vasić Veran, Dumnic Boris, Milicevic Dragan, Vukajlovic Nikola
{"title":"Rotor slot harmonics based induction machine speed estimation","authors":"Popadic Bane, Vasić Veran, Dumnic Boris, Milicevic Dragan, Vukajlovic Nikola","doi":"10.1109/PEE.2017.8171680","DOIUrl":"https://doi.org/10.1109/PEE.2017.8171680","url":null,"abstract":"Some of the most common types of electrical drives imply the use of induction machines as their integral part. Making use of the economically most viable solution, the researchers have always strived to increase the reliability of such drives, while constantly trying to decrease maintenance cost. On the other hand, including a large number of sensors, required by the novel control techniques, usually have the opposite effect. Therefore, a logical sequence of events shifted the research focus to sensorless control strategies, based on the advanced algorithm for speed estimation. As the more reliable concept, speed estimation based on magnetic anisotropy is used for high performance drives. In addition, these algorithms are used for parameter adaptation mechanisms for standard model based speed estimation. This paper will present the possibility of speed estimation based on the detection of rotor slot harmonics. The experimental verification will be performed on an advanced laboratory prototype for control of electrical drives, developed at the Faculty of Technical Sciences.","PeriodicalId":243099,"journal":{"name":"2017 International Symposium on Power Electronics (Ee)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115380251","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
A modified line-commutated inverter for grid-connected photovoltaic systems with voltage-based maximum power point tracking method 一种基于电压最大功率点跟踪方法的并网光伏系统改进型线换流逆变器
2017 International Symposium on Power Electronics (Ee) Pub Date : 2017-10-01 DOI: 10.1109/PEE.2017.8171672
M. Ünlü, S. Çamur, E. Beşer, B. Arifoğlu
{"title":"A modified line-commutated inverter for grid-connected photovoltaic systems with voltage-based maximum power point tracking method","authors":"M. Ünlü, S. Çamur, E. Beşer, B. Arifoğlu","doi":"10.1109/PEE.2017.8171672","DOIUrl":"https://doi.org/10.1109/PEE.2017.8171672","url":null,"abstract":"This paper presents a new structure based on a line-commutated inverter (LCI) for photovoltaic (PV) applications. The proposed LCI circuit is able to inject the DC power to the grid at the unity power factor and with reduced harmonic levels. The proposed circuit with voltage-based maximum power point tracking (MPPT) is implemented in grid-connected PV system. The experimental results show that proposed system can extract the maximum power from PV array under varying irradiation levels. Besides, the power factor can be adjusted by modifying firing angle of SCRs. The modified LCI injects sinusoidal currents into the grid, thus the total harmonic distortion (THD) of the grid currents is about 5% or less, which is meet IEEE 1547 grid-connected standard. The results were obtained without any harmonic compensation or filter equipment when compared with the conventional LCI and current source inverter (CSI).","PeriodicalId":243099,"journal":{"name":"2017 International Symposium on Power Electronics (Ee)","volume":"600 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123158105","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
Large wind generators design, performance and control: An overview 大型风力发电机的设计、性能和控制综述
2017 International Symposium on Power Electronics (Ee) Pub Date : 2017-10-01 DOI: 10.1109/PEE.2017.8171659
I. Boldea, A. Moldovan, L. Tutelea
{"title":"Large wind generators design, performance and control: An overview","authors":"I. Boldea, A. Moldovan, L. Tutelea","doi":"10.1109/PEE.2017.8171659","DOIUrl":"https://doi.org/10.1109/PEE.2017.8171659","url":null,"abstract":"Wind energy installed power worldwide reached 350.000 MW in 2015 with strong prospects to grow notably in the next 20 years. The cases of E.U. and of Denmark are illustrated. Electric generators and their power electronics control represent an important part of any wind energy conversion system, besides the turbine, tower and auxiliary electrical equipment. Large wind generator transmission stages designs, tailored to application, of various types with ever better performance up to 10 MW per unit are envisaged for the near future and are presented in this lecture. The same technology is shown to be applicable to other related industries such as pump storage and inertial storage needed to reconcile wind energy production variability with consumers. Typical and new control systems for large wind generators are reviewed also.","PeriodicalId":243099,"journal":{"name":"2017 International Symposium on Power Electronics (Ee)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122825746","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
Mechanical arrangements onboard ship of innovative permanent magnet linear actuators for steering gear 船上机械装置的创新永磁直线舵机执行器
2017 International Symposium on Power Electronics (Ee) Pub Date : 2017-10-01 DOI: 10.1109/PEE.2017.8171675
C. Bruzzese, E. Ruggeri, M. Rafiei, D. Zito, E. Santini, T. Mazzuca, G. Lipardi
{"title":"Mechanical arrangements onboard ship of innovative permanent magnet linear actuators for steering gear","authors":"C. Bruzzese, E. Ruggeri, M. Rafiei, D. Zito, E. Santini, T. Mazzuca, G. Lipardi","doi":"10.1109/PEE.2017.8171675","DOIUrl":"https://doi.org/10.1109/PEE.2017.8171675","url":null,"abstract":"This paper deals with the mechanical solutions for installation of innovative direct-drives suited for steering gears onboard ships. The work is comprised in a research project commissioned by the Italian Navy. The research aims to realize a full-electric and oil-free drive for actuation of hydraulic loads in the perspective of more “green ships”. The electrical drives proposed are based on a fractional slot permanent magnet linear motor sized and optimized for high force and low speed operation, as required by hydraulic loads onboard ships. The capabilities and efficiencies of the electric drives in servo-assistance to the hydraulic motor were evaluated in previous works of the same authors. In this paper the mechanical analysis and the feasibility of the installation are shown.","PeriodicalId":243099,"journal":{"name":"2017 International Symposium on Power Electronics (Ee)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121570748","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
Power factor correction of electric arc furnace using active and passive compensation 采用有源和无源补偿的电弧炉功率因数校正
2017 International Symposium on Power Electronics (Ee) Pub Date : 2017-10-01 DOI: 10.1109/PEE.2017.8171704
Nikola Laketić, J. Radakovic, Zoltan Majtal
{"title":"Power factor correction of electric arc furnace using active and passive compensation","authors":"Nikola Laketić, J. Radakovic, Zoltan Majtal","doi":"10.1109/PEE.2017.8171704","DOIUrl":"https://doi.org/10.1109/PEE.2017.8171704","url":null,"abstract":"Electric Arc Furnaces have very fast changing current, rich in harmonic components, especially in the early stages of the melting process. This is why power factor correction of arc furnaces is a demanding task, involving complex power electronic devices with active control like STATCOMs, etc. In this paper, a mixed approach is described, where power factor correction of arc furnace is accomplished with a mix of active and passive power factor correction devices. As a result target power factor is reached at 50% the cost of using active devices exclusively. Final results show that reactive power of the EAF was reduced for 84.7% with final PF>0.98. Active energy input into the EAF increased for 16.7% In the paper results are presented in the form of before/after diagrams of voltage, current, active and reactive power and THD.","PeriodicalId":243099,"journal":{"name":"2017 International Symposium on Power Electronics (Ee)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130211340","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
Conformal mapping of impedance stability models for system-level dynamics assessments 用于系统级动力学评估的阻抗稳定性模型的保角映射
2017 International Symposium on Power Electronics (Ee) Pub Date : 2017-10-01 DOI: 10.1109/PEE.2017.8171687
F. Freijedo, Uzair Javaid, D. Dujić
{"title":"Conformal mapping of impedance stability models for system-level dynamics assessments","authors":"F. Freijedo, Uzair Javaid, D. Dujić","doi":"10.1109/PEE.2017.8171687","DOIUrl":"https://doi.org/10.1109/PEE.2017.8171687","url":null,"abstract":"Impedance stability methods are suitable for assessing the dynamics of power converters controllers, but also for ac/dc microgrids system level studies. This work proposes the combination of impedance modeling and conformal mapping for the identification of the dominant eigenvalues. The methodology is derived by linearization of the Cauchy-Riemann equations, which define the conformal mapping property of the Nyquist trajectories. The proposed technique is of high practical value, since it can be performed from frequency-domain data obtained by small-signal perturbation (i.e., explicit transfer functions are not needed). A detailed study case, focused on a medium-voltage dc microgrid, is provided in order to verify the theoretical approach. The new features and limitations of the proposed technique are summarized in the conclusions.","PeriodicalId":243099,"journal":{"name":"2017 International Symposium on Power Electronics (Ee)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128877810","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
Model identification and parameter estimation of lithium ion batteries for diagnostic purposes 用于诊断的锂离子电池模型辨识与参数估计
2017 International Symposium on Power Electronics (Ee) Pub Date : 2017-10-01 DOI: 10.1109/PEE.2017.8171673
A. Pózna, A. Magyar, K. Hangos
{"title":"Model identification and parameter estimation of lithium ion batteries for diagnostic purposes","authors":"A. Pózna, A. Magyar, K. Hangos","doi":"10.1109/PEE.2017.8171673","DOIUrl":"https://doi.org/10.1109/PEE.2017.8171673","url":null,"abstract":"A parameter estimation study is reported here to estimate the temperature-dependent internal resistance of a lithium ion battery that is connected to the state of its health. A simple equivalent electrical circuit model was used for this purpose that is nonlinear both in its variables and in its parameters. Parameter sensitivity analysis showed that under conditions of constant charging/discharging current there is a linear dependency between some model parameters.","PeriodicalId":243099,"journal":{"name":"2017 International Symposium on Power Electronics (Ee)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131929982","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
Dynamic simulation model of a quasi-Z-Source inverter with parasitic resistances and saturable inductor 具有寄生电阻和可饱和电感的准z源逆变器的动态仿真模型
2017 International Symposium on Power Electronics (Ee) Pub Date : 2017-10-01 DOI: 10.1109/PEE.2017.8171663
Mateo Bašić, D. Vukadinović, M. Polić
{"title":"Dynamic simulation model of a quasi-Z-Source inverter with parasitic resistances and saturable inductor","authors":"Mateo Bašić, D. Vukadinović, M. Polić","doi":"10.1109/PEE.2017.8171663","DOIUrl":"https://doi.org/10.1109/PEE.2017.8171663","url":null,"abstract":"In this paper, an advanced simulation model of a quasi-Z-Source inverter (qZSI) is presented. The model has been built in MATLAB-Simulink by using only standard blocks. It is based upon the qZSI's nonlinear differential equations, i.e., without resorting to state-space averaging and small-signal analysis. In the proposed model, the equations for the non-shoot-through state and those for the shoot-through state are alternately executed, depending on the qZSI state. The parasitic resistances of the qZSI capacitors/inductors as well as the magnetic saturation of the qZSI inductors are all accounted for. The impact of these factors on the qZSI's transient and steady-state performance is evaluated and analyzed both on the simulation and experimental level.","PeriodicalId":243099,"journal":{"name":"2017 International Symposium on Power Electronics (Ee)","volume":"173 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131736248","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
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