Relevant bibliographies by topics / Three phase Four Wire Grid Connected Inverter

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Academic literature on the topic 'Three phase Four Wire Grid Connected Inverter'

Author: Grafiati
Published: 4 June 2021
Last updated: 6 September 2023

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Journal articles on the topic "Three phase Four Wire Grid Connected Inverter"

1

Feng, Guoli, Zhihao Ye, Yihui Xia, Liming Huang, and Zerun Wang. "Impedance Modeling and Stability Analysis of Three-Phase Four-Wire Inverter with Grid-Connected Operation." Energies 15, no. 8 (2022): 2754. http://dx.doi.org/10.3390/en15082754.

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With the continuous penetration and development of renewable energy power generation, distributed grids and microgrids are becoming increasingly important in power systems. In the distribution networks and microgrids, the grid impedance is comparatively large and cannot be ignored. Usually, the parallel compensation is used to improve the grid quality. In these three-phase four-wire power systems, analyzing the impedance characteristics of the grid-connected inverter is vital to carry out the small-signal stability analysis. Thus, it is vital to consider the influence of the zero-sequence component in addition to the positive-sequence component and the negative-sequence component when it comes to analyzing system stability. In this paper, the impedances of three-phase four-wire split capacitor inverter and three-phase four-leg inverter are established. Based on the achieved impedance, the similarities and differences between the impedances of three-phase four-wire split capacitor inverter and impedance of three-phase four-leg inverter are studied. The main difference is reflected in zero-sequence impedance. Additionally, the zero-sequence impedance characteristics and the dominating factors deciding the zero-sequence impedance are analyzed. Then, the stability of the system considering the grid impedance and impedance of three-phase four-wire inverter is investigated by separately considering the stability of the positive–negative-sequence component and the stability of the zero-sequence component. Several cases of small-signal instability caused by the positive–negative-sequence component or zero-sequence component are revealed. The experimental results validate the theoretical analysis.
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Feng, Guoli, Zhihao Ye, Yihui Xia, Heng Nian, and Yunxiang Jiang. "Oscillation Suppression Strategy of Three-Phase Four-Wire Grid-Connected Inverter in Weak Power Grid." Electronics 12, no. 14 (2023): 3105. http://dx.doi.org/10.3390/electronics12143105.

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As the penetration of renewable energy increases year by year, the risk of high-frequency oscillation instability increases when a three-phase, four-wire split capacitor inverter (TFSCI) is connected to the grid with complementary capacitors in weak grids. Compared to the three-phase, three-wire inverter, the TFSCI has an additional zero-sequence current loop. To improve the accuracy of the modeling and stability analysis, the effect of the zero-sequence loop needs to be considered in the impedance-based stability analysis. Therefore, a correlation model considering multi-perturbation variables is first established, based on which the inverter positive, negative, and zero sequence admittance models are derived, solving the difficult problem of impedance modeling under small perturbations. Secondly, an admittance remodeling strategy based on a negative third-order differential element and a second-order generalized integrator (SOGI) damping controller is proposed, which can improve the stability of positive, negative, and zero-sequence systems simultaneously. Finally, the effectiveness of the oscillation suppression strategy is verified by simulation and experiment.
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Zhang, Shao Ru, and Shao Yuan Li. "A Reference Compensation Current Control of Grid-Connected Inverter for Three-Phase Distributed Generators." Applied Mechanics and Materials 433-435 (October 2013): 1183–87. http://dx.doi.org/10.4028/www.scientific.net/amm.433-435.1183.

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Renewable energy resources (RES) are being increasingly connected in distribution systems by utilizing power electronic converters. However, the extensive use of power electronics has resulted in a rise in power quality (PQ) concerns faced by the utility. A novel control strategy implementing reference compensation current was proposed in this paper. So that these grid-connected inverters can achieve maximum benefits when they installed in 3-phase 4-wire distribution systems. The inverter is controlled to perform as a multi-function device by incorporating active power filter functionality. The inverter can thus be utilized as: 1) power converter to transfer active power from RES to the grid, and 2) load reactive power demand support; 3) current harmonics compensation at PCC; and 4) current unbalance and neutral current compensation in case of 3-phase 4-wire system. Moreover, with adequate control of grid-interfacing inverter, all the four objectives can be accomplished either individually or simultaneously. Simulation results show the validity and capability of the novel proposed control strategy.
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Yang, Longyue, Tian Cao, Zhipeng Cai, et al. "Stability Analysis and Robust Control Method for LCL-Type Three-Phase Four-Wire Split Capacitor Inverter Considering Zero-Sequence Loop." Electronics 11, no. 20 (2022): 3286. http://dx.doi.org/10.3390/electronics11203286.

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In distributed generation systems, the inverter is the main power interface and its stability directly determines the reliable operation of the grid-connected system. As a typical topology for a three-phase four-wire inverter, the LCL-type three-phase four-wire split capacitor inverter (LCL-TFSCI) is taken as the research subject of this paper. Compared with the three-phase three-wire inverter, there is an additional zero-sequence path in the LCL-TFSCI. Therefore, it is not only necessary to consider the stability of the positive and negative sequence system, but there is also the need to consider the stability of the zero-sequence system when performing stability analysis for the LCL-TFSCI. In this paper, a small-signal impedance model considering the zero-sequence loop of LCL-TFSCI is firstly established. Subsequently, the instability risk is revealed when LCL-TFSCI is connected to the grid with parallel compensation capacitors. Through instability analysis, an impedance-reshaping method based on the complex filter and combined differential elements is proposed, which can reshape the impedance characteristic of LCL-TFSCI within the wide frequency range and expand the stability domain of the grid-connected system. Finally, the proposed method is verified by simulation and experiment.
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Feng, Guoli, Zhihao Ye, Yihui Xia, Heng Nian, Liming Huang, and Zerun Wang. "High Frequency Resonance Suppression Strategy of Three-Phase Four-Wire Split Capacitor Inverter Connected to Parallel Compensation Grid." Energies 15, no. 4 (2022): 1486. http://dx.doi.org/10.3390/en15041486.

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With the continuous penetration and development of renewable energy power generation, the distributed grid and the microgrid are becoming increasingly important in modern power systems. In distribution networks and the microgrid, the grid impedance is comparatively large and cannot be ignored. Usually, the parallel compensation is used to improve the grid quality. In the grid with parallel compensation, the large phase angle difference between the impedance of the grid-connected inverter and the impedance of the grid at amplitude intersection will result in high frequency resonance (HFR). Because the inverter shows filter characteristics due to limited bandwidth of the controller, the parallel compensation grid, respectively, performs as the capacitance characteristic and inductance characteristic in different high frequency range. Compared with the three-phase, three-wire system, an additional zero-sequence path exists in the three-phase four-wire split capacitor inverter (TFSCI) system, so that the existing high frequency resonance suppression methods will be not effective. Since the zero-sequence component is neglected, HFR will also occur, in addition to the positive-sequence component and the negative-sequence component. Therefore, in order to suppress the high frequency resonance caused by positive-sequence, negative-sequence and zero-sequence components, an impedance reshaping strategy based on current feedback is proposed in this paper. This proposed method can reshape the amplitude and phase of the inverter impedance in a high frequency range without affecting the performance of the fundamental frequency control and ensure that the inverter contains a sufficient phase margin. Additionally, the proposed method can reshape the impedance of TFSCI within a wide frequency range, which makes it able to cope with the challenge of the parallel compensation degree change. Theoretical analysis and experiments verify the availability of the proposed control strategy.
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Hammami, Manel, Riccardo Mandrioli, Aleksandr Viatkin, Mattia Ricco, and Gabriele Grandi. "Analysis of Input Voltage Switching Ripple in Three-Phase Four-Wire Split Capacitor PWM Inverters." Energies 13, no. 19 (2020): 5076. http://dx.doi.org/10.3390/en13195076.

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Three-phase, four-wire split capacitor inverters are currently employed in many applications, such as photovoltaic systems, battery chargers for electric vehicles, active power filters, and, in general, in all grid-tied applications that deal with possible grid voltage and/or current unbalances. This paper provides a comprehensive evaluation of the capacitor-switching voltage ripple and dc-link switching voltage ripple for the three-phase, four-wire, split capacitor inverters. Specifically, analytical formulations of the peak-to-peak and rms values of the voltage ripples are originally pointed out in this paper and determined in the case of balanced three-phase and unbalanced (two-phase and single-phase) output (ac) currents. The obtained results can help in designing the considered inverter and sizing of the dc-link capacitors. Reference is made to the sinusoidal PWM modulation and sinusoidal three-phase output currents with an almost unity power factor, representing a grid-connected application. Extensive numerical simulations have been carried out to thoroughly verify all the analytical developments presented in this paper. Furthermore, some experimental tests, having balanced output currents on the ac side, have been accomplished, validating numerical simulations and analytical developments.
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Archana, J., K. Sunil, Sai K. Mohanth, D. Sowmya, and K. Aneela. "A grid-connected DVSI with features to enhance power quality." i-manager's Journal on Power Systems Engineering 10, no. 1 (2022): 31. http://dx.doi.org/10.26634/jps.10.1.18831.

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A dual-source voltage inverter system is proposed to improve the power and consistency aspects of using a microgrid. Evaluation of the Proportional Integral (PI), the intelligent Fuzzy Logic Controller (FLC), and the developed control method is known as the Instantaneous Symmetrical Component Theory (ISCT). A Dual Voltage Source Inverter (DVSI) uses Distributed Energy Resources (DER) to exchange power and compensate for unbalanced and non-linear loads in the system. The direct-quadrature-zero transformation (Dq0) conversion is used to obtain the positive sequence voltage. To evaluate the system control method, an inverter connected to a three-phase, four-wire distribution combination is used. The proposed system is verified by MATLAB simulation methods using a PI controller and an intelligent FLC system.
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Mandrioli, Riccardo, Francesco Lo Franco, Mattia Ricco, and Gabriele Grandi. "A Generalized Approach for Determining the Current Ripple RMS in Four-Leg Inverters with the Neutral Inductor." Energies 16, no. 4 (2023): 1710. http://dx.doi.org/10.3390/en16041710.

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This manuscript proposes a novel approach for determining phase and neutral-current-ripple RMS in grid-connected four-leg inverters with the neutral inductor. The harmonic pollution is determined for any arbitrary pulse width modulation (PWM) technique and a generic value of the neutral inductor. Thanks to the proposed approach, it is possible to describe the neutral inductor in a parametric way with respect to phase inductors and obtain a wide range of results, ranging from a direct neutral connection (no neutral inductor) to a conventional three-phase inverter (no fourth wire) for any value of modulation index and common mode injection. The results permit one to compare different design choices in multiple scenarios effectively. The findings were validated by numerical simulations and experimental tests employing the most popular PWM techniques, such as space vector PWM (SVPWM) and discontinuous PWM (DPWM).
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Abed, Jameel Kaduim. "A three phase photovoltaic grid tied inverter system control based on t-s fuzzy equalization." International Journal of Power Electronics and Drive Systems (IJPEDS) 10, no. 2 (2019): 928. http://dx.doi.org/10.11591/ijpeds.v10.i2.pp928-934.

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<p>This paper proposed a Takagi-Sugeno fuzzy control method is used to build the model for current controlled of three phase photovoltaic inverter. The three phase inverter connected to grid with L filter. The DC link capacitor is splatted midpoint of three phase four wire and the DC link voltage in the input side of the inverter is considered as input variables value for maximum value of the reference current for the feedback controlled. The proposed of T-S fuzzy control method and hysteresis current control can solve and enhance the THD of the output current of the inverter. The T-S fuzzy is designed to monochrome controller makes the output currents are balanced and decrease the harmonic compensation of the full system. The Matlab simulations and test results show the THD, current and the voltage of the three photovoltaic inverter under T-S fuzzy controller method is current balancing efficiency. The control unit is capable of carrying out operation in good condition, dynamic characteristics stable and high quality.</p>
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Lin, Zheping. "Optimization Design of Voltage Stabilization Based on Three-Phase Rectification, APF and PWM Technology and Its Application in Grid-connected Transmission." Journal of Physics: Conference Series 2496, no. 1 (2023): 012030. http://dx.doi.org/10.1088/1742-6596/2496/1/012030.

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Abstract Aiming at the problems of voltage fluctuation and harmonics in photovoltaic grid connection, the improvement of a three-phase rectifier circuit is proposed, and the results are verified by MATLAB simulation. At the same time, this paper also puts forward the application of a three-phase four-wire three-level parallel APF structure and Three-term rectifier PWM rectification technology. By compensating harmonic current generated by APF and controlling the switching state of the inverter by PWM, the bidirectional flow of electric energy can be realized, and the harm of harmonic and voltage fluctuation of photovoltaic grid connection can be solved.
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Dissertations / Theses on the topic "Three phase Four Wire Grid Connected Inverter"

1

Dai, Min. "Control of power converters for distributed generation applications." Connect to resource, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1124329850.

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Ghoshal, Anirban. "Operation of Three Phase Four Wire Grid Connected VSI Under Non-Ideal Conditions." Thesis, 2013. http://etd.iisc.ac.in/handle/2005/3386.

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The necessity to incorporate renewable energy systems into existing electric power grid and need of efficient utilization of electrical energy are growing every day. A shunt connected Voltage Source Inverter(VSI) capable of bidirectional power flow and fast control has become one of the building block to address such requirements. However with growing number of grid connected VSI, new requirements related to harmonic injection, higher overall efficiency and better performances during short term grid disturbances have emerged as challenges. For this purpose a grid connected three phase four wire VSI with LCL filter can be considered as a general module to study different control approaches and system behavior under ideal and non-ideal grid conditions. This work focuses on achieving enhanced performance by analyzing effect of non-ideal conditions on system level and relating it to individual control blocks. In this work a phase locked loop structure has been proposed which is capable of extracting positive sequence fundamental phase information under non-ideal grid conditions. It can also be used in a single phase system without any structural modification. The current control for the three phase four wire VSI system has been implemented using Proportional Resonant (PR) controller in a per phase basis in stationary reference frame. A simplified controller design procedure based on asymptotic representation of the system transfer function is proposed. Using this method expressions for controller gains can be derived. A common mode model of the inverter system has been derived for low frequencies. Using this model a controller is designed to mitigate DC bus imbalance caused by sensor and ADC channel offsets. A multi-rate approach for digital implementation of PR controller with low resource consumption, that is suitable for an FPGA like digital controller ,is proposed. This multi-rate method can maintain resonance frequency accuracy even at low sampling frequency and can easily be frequency adaptive. Anti-wind up methods for PI controller have been studied to find suitable anti-wind up methods for PR controller. The tracking anti-wind up method is shown to be suitable for use with a PR controller. The effectiveness of this method under sudden disconnection and reconnection of VSI from grid is experimentally verified. A resonant integrator based second order filter is shown to be useful for active damping of LCL filter resonance with a wide range of grid inductance variation. The proposed method utilizes the LCL filter capacitor voltage to estimate resonance frequency current. Suitability of fundamental current PR controller for active damping alone, and with the proposed method show the superiority of the proposed method especially for low switching frequencies. Design oriented analysis of the above topics are included in the thesis. The theoretical understandings developed have been verified through experiments in the laboratory and can be readily implemented in industrial power electronic systems.
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Ghoshal, Anirban. "Operation of Three Phase Four Wire Grid Connected VSI Under Non-Ideal Conditions." Thesis, 2013. http://etd.iisc.ernet.in/2005/3386.

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The necessity to incorporate renewable energy systems into existing electric power grid and need of efficient utilization of electrical energy are growing every day. A shunt connected Voltage Source Inverter(VSI) capable of bidirectional power flow and fast control has become one of the building block to address such requirements. However with growing number of grid connected VSI, new requirements related to harmonic injection, higher overall efficiency and better performances during short term grid disturbances have emerged as challenges. For this purpose a grid connected three phase four wire VSI with LCL filter can be considered as a general module to study different control approaches and system behavior under ideal and non-ideal grid conditions. This work focuses on achieving enhanced performance by analyzing effect of non-ideal conditions on system level and relating it to individual control blocks. In this work a phase locked loop structure has been proposed which is capable of extracting positive sequence fundamental phase information under non-ideal grid conditions. It can also be used in a single phase system without any structural modification. The current control for the three phase four wire VSI system has been implemented using Proportional Resonant (PR) controller in a per phase basis in stationary reference frame. A simplified controller design procedure based on asymptotic representation of the system transfer function is proposed. Using this method expressions for controller gains can be derived. A common mode model of the inverter system has been derived for low frequencies. Using this model a controller is designed to mitigate DC bus imbalance caused by sensor and ADC channel offsets. A multi-rate approach for digital implementation of PR controller with low resource consumption, that is suitable for an FPGA like digital controller ,is proposed. This multi-rate method can maintain resonance frequency accuracy even at low sampling frequency and can easily be frequency adaptive. Anti-wind up methods for PI controller have been studied to find suitable anti-wind up methods for PR controller. The tracking anti-wind up method is shown to be suitable for use with a PR controller. The effectiveness of this method under sudden disconnection and reconnection of VSI from grid is experimentally verified. A resonant integrator based second order filter is shown to be useful for active damping of LCL filter resonance with a wide range of grid inductance variation. The proposed method utilizes the LCL filter capacitor voltage to estimate resonance frequency current. Suitability of fundamental current PR controller for active damping alone, and with the proposed method show the superiority of the proposed method especially for low switching frequencies. Design oriented analysis of the above topics are included in the thesis. The theoretical understandings developed have been verified through experiments in the laboratory and can be readily implemented in industrial power electronic systems.
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Chen, Jia-Siang, and 陳家翔. "Grid-Connected Three-Phase Four-Wire Modular Multilevel Converter." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/epeean.

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Juang, Ting-Ming, and 莊定明. "Study of Three-Phase Four Wire Power Converter Interface for Grid-Connected Solar Generation System." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/06690079079173601044.

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碩士<br>國立高雄應用科技大學<br>電機工程系<br>98<br>A three-phase four-wire power converter interface for grid-connected solar generation system is developed in this paper. This three-phase four-wire grid-connected solar generation system is configured by a twin-boost DC/DC converter and a three-phase four-wire multi-level converter. The twin-boost DC/DC converter can regulate the DC capacitor voltages of the multi-level converter. The three-phase four-wire multi-level converter can regulate the DC capacitor voltage and improve the power efficiency of conventional bridge converter. The maximum power point tracking is incorporated in the controller of the twin-boost DC/DC converter to generate the maximum power of the solar module. The islanding detection is incorporated in the controller of the three-phase four-wire multi-level converter to detect the unintentional islanding operation. Finally, computer simulation is carried out to verify the performance and feasibility of the developed grid-connected solar generation system.
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Conference papers on the topic "Three phase Four Wire Grid Connected Inverter"

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Handoko, Susatyo, Sasongko Pramono Hadi, Suharyanto, and Eka Firmansyah. "The performance of three-phase four-wire grid-connected inverter with enhanced power quality." In 2014 6th International Conference on Information Technology and Electrical Engineering (ICITEE). IEEE, 2014. http://dx.doi.org/10.1109/iciteed.2014.7007956.

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Mohapatra, Soumya Ranjan, and Vivek Agarwal. "A Low Computational Cost Model Predictive Controller for Grid Connected Three Phase Four Wire Multilevel Inverter." In 2018 IEEE 27th International Symposium on Industrial Electronics (ISIE). IEEE, 2018. http://dx.doi.org/10.1109/isie.2018.8433727.

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Julian, Alexander L., and Giovanna Oriti. "Novel Common Mode Voltage Elimination Methods in Three-Phase Four-Wire Grid-Connected Inverters." In 2021 IEEE Energy Conversion Congress and Exposition (ECCE). IEEE, 2021. http://dx.doi.org/10.1109/ecce47101.2021.9595958.

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Jaesuk, Kim, and Sul Seung-Ki. "Harmonic currents control of three-phase four-wire grid-connected PWM inverter based on high-order repetitive controller." In 2015 9th International Conference on Power Electronics and ECCE Asia (ICPE 2015-ECCE Asia). IEEE, 2015. http://dx.doi.org/10.1109/icpe.2015.7168076.

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Wu, Tsai-Fu, Yun-Hsiang Chang, Jui-Yang Chiu, Chien-Chih Hung, and Tzu-Hsien Chuang. "Direct Digital Control and Capacitor Current Compensation to Improve Grid-Current Distortion for Three-Phase Three-Wire LCL Grid-Connected Inverter Under Distorted Grid Voltages." In 2023 IEEE Applied Power Electronics Conference and Exposition (APEC). IEEE, 2023. http://dx.doi.org/10.1109/apec43580.2023.10131457.

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Huang, Min, Frede Blaabjerg, Yongheng Yang, and Weimin Wu. "Step by step design of a high order power filter for three-phase three-wire grid-connected inverter in renewable energy system." In 2013 4th IEEE International Symposium on Power Electronics for Distributed Generation Systems (PEDG). IEEE, 2013. http://dx.doi.org/10.1109/pedg.2013.6785603.

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Fortunato, Bernardo, Sergio Mario Camporeale, Marco Torresi, Davide De Fazio, and Mauro Giordani. "Experimental Results of a Vertical Axis Wind Turbine." In ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2010. http://dx.doi.org/10.1115/esda2010-25251.

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In the present paper the new wind tunnel located in the Fluid-dynamic Laboratory of the Dipartimento di Ingegneria Meccanica e Gestionale (DIMeG) of the Bari Polytechnic will be shortly described and the first experimental measurements on a vertical axis wind turbine (VAWT) will be shown. The DIMeG wind tunnel has been designed by the research group on wind energy of the Department. It is a subsonic, closed loop, wind tunnel with a transparent test part where small scale models can be analyzed. A four bladed axial fan is driven by an asynchronous three phase electric motor, which is connected to an inverter in order to change the wind speed. Angular blades have been inserted at the two curves between the fan and the test section in order to increase the uniformity of the velocity profile after the two curves. An optimization fluid-dynamic study has been carried out in order to find the best blade profile. A honeycomb has been also inserted upstream the test section in order to destroy the still existing small vorticity generated by the fan and the curves. A three-axis traversing, called Cartesian robot, has been designed and built above the test section, in order to move the hot wire probe, for wind speed measurements, by means of four step by step electric motors controlled by a personal computer. A data acquisition system has been set up. All the principal commands and controls can be performed by a dedicated personal computer, which has been programmed using LabVIEW® G-programming language. The first experimental activity has been performed on a VAWT model, of the Giromill type with parallel blades. The turbine has been connected to an AC brushless servo, able to control the braking torque. Experimental results of the flow field in two horizontal planes have been set up using a two component hot wire probe (Dantec 55R51) calibrated with the manual system Dantec 54H10. The measurement grid adopted is formed by 20 nodes in the Y direction (main flow direction) and 10 nodes in the X direction.
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Nobrega Tahim, Andre Pires, Fabiano Fragoso Costa, and Daniel Juan Pagano. "Coupled model for three-phase three-wire grid connected inverters through LCL filters." In 2017 IEEE 8th International Symposium on Power Electronics for Distributed Generation Systems (PEDG). IEEE, 2017. http://dx.doi.org/10.1109/pedg.2017.7972552.

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Wu, Tsai-Fu, Yun-Hsiang Chang, Jui-Yang Chiu, Chang-Yang Chou, and Chien-Chih Hung. "Three-Phase Four-Wire Inverter for Grid Emulator under Wide Filter Inductance Variation." In 2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia). IEEE, 2023. http://dx.doi.org/10.23919/icpe2023-ecceasia54778.2023.10213565.

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Duarte, Samuel N., Pedro M. Almeida, and Pedro G. Barbosa. "Zero-sequence network voltage compensation by a three-phase four-wire grid-connected converter." In 2018 Simposio Brasileiro de Sistemas Eletricos (SBSE) [VII Brazilian Electrical Systems Symposium (SBSE)]. IEEE, 2018. http://dx.doi.org/10.1109/sbse.2018.8395607.

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