Relevant bibliographies by topics / Multi-pulse transformer rectifier

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  1. Journal articles
  2. Dissertations / Theses
  3. Conference papers

Academic literature on the topic 'Multi-pulse transformer rectifier'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Multi-pulse transformer rectifier"

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Yang, Lv, Jun Hong Zhang, and Tie Jun Wang. "A Circular Phase Shifting Transformer for Multi-Pulse Rectifier." Applied Mechanics and Materials 741 (March 2015): 611–15. http://dx.doi.org/10.4028/www.scientific.net/amm.741.611.

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This paper designed a 3/12 phase circular phase shifting transformer applied to multi-pulse rectifier. The transformer is built by using rotating magnetic field principle, and the ferromagnetic structure is similar to an induction motor. Compared with the general column iron core phase shifting transformer, the circular phase shifting transformer has the advantages of compact structure, more symmetric magnetic circuit, and the design of primary and secondary winding is more simple. This paper established the mathematical model of the circular shifting transformer, the voltage equations are derived. Then analysis the inhibitory effect of harmonic wave in 24 pulse rectifier. Verify the feasibility of the circular phase shifting transformer through the experiment, when the circular phase shifting transformer is applied to multi-pulse rectifier, it is effective to suppress the harmonic wave of the Power grid.
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Setlak, Lucjan, and Rafał Kowalik. "Examination of Multi-Pulse Rectifiers of PES Systems Used on Airplanes Compliant with the Concept of Electrified Aircraft." Applied Sciences 9, no. 8 (2019): 1520. http://dx.doi.org/10.3390/app9081520.

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This article focuses on power electronic multi-pulse 12-, 24- and 36-impulse rectifiers based on multi-winding rectifier transformers. The effectiveness of voltage processing with different variants of supply voltage sources is discussed and arguments are formulated for limiting oneself to 24-pulse processing, which is used in the latest technological solutions of modern aviation technology. The main purpose of this article is to conduct a study (analysis, mathematical models, simulations) of selected multi-pulse rectifiers in the context of testing their properties in relation to the impact on the electrified power supply network. The secondary objective of the article is to assess the possibility of using Matlab/Simulink to analyze the work of rectifier circuits implemented in aircraft networks compliant with the more/all electric aircraft (MEA/AEA) concept. The simulation tests included designing a typical auto-transformer rectifier unit (ATRU) system in the Simulink program and generating output voltage waveforms in this program in the absence of damage to the rectifier elements. In the final part of this work, based on a critical analysis of the literature on the subject of the study, simulations were made of exemplary rectifiers in the Matlab/Simulink programming environment along with their brief analysis. Practical conclusions resulting from the implementation of the MEA/AEA concept in modern aviation were formulated.
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Sokol, Yevgen I., Volodymyr V. Zamaruiev, Volodymyr V. Ivakhno, and Yurii S. Voitovych. "Electronic Phase Shifting in Multipulse Rectifier." Electrical, Control and Communication Engineering 12, no. 1 (2017): 5–10. http://dx.doi.org/10.1515/ecce-2017-0001.

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Abstract This paper presents a novel converter which can reduce the harmonics like the conventional multipulse converters with input three phase transformer. To reduce total harmonic distortion of input current and improve the weight and size of converters, it is suggested to use multi-pulse rectifiers with an electronic phase shift. The basic module is a 6-pulse rectifier on fully controlled switches with the reverse blocking ability. Switching frequency either coincides or is twice the power frequency. The proposed solutions allow refusing from the electromagnetic phase-shifting devices (power transformers or auto-transformers) and thereby significantly reduce the weight of the device. Unlike power factor correction systems with high-frequency modulation, the proposed converters are significantly different, as they have better electromagnetic compatibility and the virtual absence of dynamic switching losses of power switches.
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Wang, Zhong, Jing Hong Zhao, and Bing Li. "Analysis of Magnetic Field of the New Phase-Shifting Transformer." Advanced Materials Research 1006-1007 (August 2014): 919–23. http://dx.doi.org/10.4028/www.scientific.net/amr.1006-1007.919.

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A novel phase shifting transformer is proposed for the application of multi-pulse rectifier, which is based linear motor, and has the advantages of simple structure, easy to manufacture, etc. Introduces the operating principle. Without considering flat phase shifting transformer longitudinal end-effect and transverse end-effect, analyzes the magnetic field distribution of the flat phase shifting transformer, it provides an optimal way to this novel phase shifting transformer.
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Foti, Salvatore, Giacomo Scelba, Antonio Testa, and Angelo Sciacca. "An Averaged-Value Model of an Asymmetrical Hybrid Multi-Level Rectifier." Energies 12, no. 4 (2019): 589. http://dx.doi.org/10.3390/en12040589.

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The development and the validation of an averaged-value mathematical model of an asymmetrical hybrid multi-level rectifier is presented in this work. Such a rectifier is composed of a three-level T-type unidirectional rectifier and of a two-level inverter connected to an open-end winding electrical machine. The T-type rectifier, which supplies the load, operates at quite a low switching frequency in order to minimize inverter power losses. The two-level inverter is instead driven by a standard sinusoidal pulse width modulation (SPWM) technique to suitably shape the input current. The two-level inverter also plays a key role in actively balancing the voltage across the DC bus capacitors of the T-type rectifier, making unnecessary additional circuits. Such an asymmetrical structure achieves a higher efficiency compared to conventional PWM multilevel rectifiers, even considering extra power losses due to the auxiliary inverter. In spite of its advantageous features, the asymmetrical hybrid multi-level rectifier topology is a quite complex system, which requires suitable mathematical tools for control and optimization purposes. This paper intends to be a step in this direction by deriving an averaged-value mathematical model of the whole system, which is validated through comparison with other modeling approaches and experimental results. The paper is mainly focused on applications in the field of electrical power generation; however, the converter structure can be also exploited in a variety of grid-connected applications by replacing the generator with a transformer featuring an open-end secondary winding arrangement.
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YANG, Tao, Serhiy BOZHKO, Patrick WHEELER, Shaoping WANG, and Shuai WU. "Generic functional modelling of multi-pulse auto-transformer rectifier units for more-electric aircraft applications." Chinese Journal of Aeronautics 31, no. 5 (2018): 883–91. http://dx.doi.org/10.1016/j.cja.2018.03.010.

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Rido Rahmadani. "Analisis Pemasangan Filter Pasif Untuk Mengurangi Harmonisa Pada Transformator Rectifier Di PT. Indah Kiat Pulp And Paper Perawang." SainETIn 3, no. 2 (2020): 59–68. http://dx.doi.org/10.31849/sainetin.v3i2.3083.

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The chlor-alkali process is an electrolysis process which plays an important role in the chemical industry such as the pulp industry. The process produces a product in the form of H2 gas, CL2 gas and NaOH (where the source of chloride ion used is NaCl). This electrolysis process requires a dirrect current with a large current and a low voltage. In this electrolysis process a three phase controlled 12 pulse rectifiers are used which a connected with multi-winding transformers. In the rectifiers process there will be harmonic distortion on the source side of the transformer which can reduce the power quality of the system. To overcome the harmonic problems that occur in the system, an installation analysis of the equipment in the form of a passive single tuned filter is aimed at reducing harmonic distortion of current and voltage and increasing the power factor (cos φ). From the result of harmonic analysis using ETAP software, after the installation of harmonic filters orde 11, 13 and 23, the harmonic current value (THDI) and harmonic voltage (THDV) has decreased, namely, before the filter installation, THDI value is 6,5% whereas after installation of filters, THDI value becomes 0,98%, thus there is a THDI decrease of 5,52%. Furthermore, for the voltage harmonic value (THDV) before filter installation is 1,48% while after filtering, THDV value becomes 0,26%, thus there is a THDV decrease of 1,22%. From the results of the simulation of the flow of power (load flow analysis), after installation of filters there is an increase in the value of the power factor (cos φ). Namely, before the filter installation, the value of power factor (cos φ) is 0,8 while after the filter installation the value of the power factor (cos φ) to 0,96, thus an increase in the power factor (cos φ) of 16%.
 
 Keywords : harmonic filter, single tuned filter, power factor, transformer rectifier
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Olhovskiy, V. Y., T. V. Myateg, and O. S. Atamanova. "Multi-pulse rectifier as a means of electromagnetic compatibility improvement in three-phase networks with sliding delta winding transformer." IOP Conference Series: Materials Science and Engineering 560 (July 10, 2019): 012112. http://dx.doi.org/10.1088/1757-899x/560/1/012112.

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Damin, Zhang, Wang Shitao, Kang Shaobo, and Zhang Ji. "Implementation of the Predictive Current Control of Multi-Pulse Flexible Topology Thyristor Rectifier Under Unbalanced Source Voltages." Open Electrical & Electronic Engineering Journal 11, no. 1 (2017): 14–22. http://dx.doi.org/10.2174/1874129001711010014.

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Predictive current control strategy has captured much concern recently in power converters. As for the multi-pulse flexible-topology thyristor rectifiers (m-PFTTR), the symmetry of the input line-to-line voltages has great influence upon the implementation of the control strategy. Existing literatures have mainly focused on the implementation under ideal condition, i.e., the input line-to-line voltages, being critical to the predictive current controller, were supposed to be symmetrical. In fact, the unbalance of the input line-to-line voltages usually exists in the windings of the zigzag transformer at front end and the A/D converter of the digital signal processor (DSP). This paper presents a new method to dynamically regulate the input line-to-line voltages to ensure the symmetry of each other. It is realized through the instantaneous correction of the bias values in the course of sampling, and the correction is embodied in the modified control algorithm. The paper includes analyses of the m-PFTTR as well as the control algorithm, simulation and experiments. Simulation and experimental results demonstrate the effectiveness of the presented method.
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Agustiningsih, E Suwondo, M Kusni, D. R. "Analysis of 6-Pulse and 12-Pulse in Conversion of the 115VAC/400Hz to 270 VDC for Application on Fighter." AVIA 1, no. 1 (2019). http://dx.doi.org/10.47355/avia.v1i1.11.

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The development of aircraft secondary power technology is moving from mechanical power, pneumatic power and hydraulic power to electric power. The trend toward electric power is known as More Electric Aircraft (MEA). Modern military aircraft are designed using 270VDC for electric power system. Today, some military aircraft still use 115VAC/400Hz for their electrical power system. If this type of aircraft need provides 270VDC electrical power, then they require Multi-Pulse Transformer Rectifier Unit (TRU). The development of this type TRU has not been aimed to comply with aircraft military standards. This research investigates the variation of the number of pulses (p) and firing angle (α) to the amplitude ripple voltage, output voltage, and distortion factor in order to comply with the MIL-STD-704F standards. The multi-pulse transformer rectifier unit being analyzed consists of 6-Pulse and 12-Pulse. The research shows that the amplitude ripple voltage and distortion factor of the 6-Pulse TRU do not comply MIL-STD-704F. The amplitude ripple voltage and distortion factor of 12-Pulse comply MIL-STD-704F with firing angle (α) ≤4°.Keywords: Transformer Rectifier Unit, thyristor, ripple voltage, distortion factor, firing angle
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Dissertations / Theses on the topic "Multi-pulse transformer rectifier"

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Tinsley, Carl Terrie III. "Modeling of Multi-Pulse Transformer/Rectifier Units in Power Distribution Systems." Thesis, Virginia Tech, 2003. http://hdl.handle.net/10919/34655.

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Multi-pulse transformer/rectifier systems are becoming increasingly popular in power distribution systems. These topologies can be found in aircraft power systems, motor drives, and other applications that require low total harmonic distortion (THD) of the input line current. This increase in the use of multi-pulse transformer topologies has led to the need to study large systems composed of said units and their interactions within the system. There is also an interest in developing small-signal models so that stability issues can be studied. This thesis presents a procedure for the average model of multi-pulse transformer/rectifier topologies. The dq rotating reference frame was used to develop the average model and parameter estimation is incorporated through the use of polynomial fits. The average model is composed of nonlinear dependent sources and linear passive components. A direct benefit from this approach is a reduction in simulation time by two orders of magnitude. The average model concept demonstrates that it accurately predicts the dynamics of the system being studied. In particular, two specific topologies are studied, the 12-pulse hexagon transformer/rectifier (hex t/r) and the 18-pulse autotransformer rectifier unit (ATRU). In both cases, detailed switching model results are used to verify the operation of the average model. In the case of the hex t/r, the average model is further validated with experimental data from an 11 kVA prototype. The hex t/r output impedance, obtained from the linearized average model, has also been verified experimentally.<br>Master of Science
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Rosado, Sebastian Pedro. "Voltage Stability and Control in Autonomous Electric Power Systems with Variable Frequency." Diss., Virginia Tech, 2007. http://hdl.handle.net/10919/29616.

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This work focuses on the safe and stable operation of an autonomous power system interconnecting an AC source with various types of power electronic loads. The stability of these systems is a challenge due to the inherent nonlinearity of the circuits involved. Traditionally, the stability analysis in this type of power systems has been approached by means of small-signal methodology derived from the Nyquist stability criterion. The small-signal analysis combined with physical insight and the adoption of safety margins is sufficient, in many cases, to achieve a stable operation with an acceptable system performance. Nonetheless, in many cases, the margins adopted result in conservative measures and consequent system over designs. This work studies the system stability under large-perturbations by means of three different tools, namely parameter space mapping, energy functions, and time domain simulations. The developed parameters space mapping determines the region of the state and parameter space where the system operation is locally stable. In this way stability margins in terms of physical parameters can be established. Moreover, the boundaries of the identified stability region represent bifurcations of the system where typical nonlinear behavior appears. The second approach, based on the Lyapunov direct method, attempts to determine the region of attraction of an equilibrium point, defined by an operation condition. For this a Lyapunov function based on linear matrix inequalities was constructed and tested on a simplified autonomous system model. In Addition, the third approach simulates the system behavior on a computer using a detailed system model. The higher level of model detail allows identifying unstable behavior difficult to observe when simpler models are used. Because the stability of the autonomous power system is strongly associated with the characteristics of the energy source, an improved voltage controller for the generator is also presented. The generator of an autonomous power system must provide a good performance under a wide variety of regimes. Under these conditions a model based controller is a good solution because it naturally adapts to the changing requirements. To this extent a controller based on the model of a variable frequency synchronous generator has been developed and tested. The results obtained show a considerable improvement performance when compared to previous practices.<br>Ph. D.
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Conference papers on the topic "Multi-pulse transformer rectifier"

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Yang, T., and S. Bozhko. "Functional modelling of multi-pulse asymmetric Auto-Transformer Rectifier Units." In 2015 International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles (ESARS). IEEE, 2015. http://dx.doi.org/10.1109/esars.2015.7101485.

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Moonshik Kang, P. N. Enjeti, Byeong Ok Woo, and I. J. Pitel. "Open-Delta Auto-Connected Electronic Transformer (OD-ACET) based multi-pulse rectifier systems." In APEC '99. Fourteenth Annual Applied Power Electronics Conference and Exposition. 1999 Conference Proceedings (Cat. No.99CH36285). IEEE, 1999. http://dx.doi.org/10.1109/apec.1999.749515.

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Gaonkar, A. D., R. G. Rane, S. R. Wagh, and N. M. Singh. "Multi-winding phase-shifting transformer for 36-pulse rectifier: Winding turns design and analysis." In 2016 North American Power Symposium (NAPS). IEEE, 2016. http://dx.doi.org/10.1109/naps.2016.7747876.

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Krishnamoorthy, Harish S., Prasad N. Enjeti, and Pawan Garg. "Simplified medium/high frequency transformer isolation approach for multi-pulse diode rectifier front-end adjustable speed drives." In 2015 IEEE Applied Power Electronics Conference and Exposition (APEC). IEEE, 2015. http://dx.doi.org/10.1109/apec.2015.7104400.

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A S, Nikshitha Rao, Kalpana R, Saravana Prakash P, and Bhim Singh. "Power Factor Correction in Multi-pulse Rectifier Using Zigzag Auto-connected Transformer and Non-isolated SEPIC Converters." In 2020 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES). IEEE, 2020. http://dx.doi.org/10.1109/pedes49360.2020.9379386.

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Krishnamoorthy, Harish S., and Srikanth Yerra. "Solid state auto-transformer concept for multi-pulse rectifiers." In 2018 IEEE Applied Power Electronics Conference and Exposition (APEC). IEEE, 2018. http://dx.doi.org/10.1109/apec.2018.8341346.

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Yao, Wenli, Frede Blaabjerg, Xiaobin Zhang, Yongheng Yang, and Zhaohui Gao. "Zero sequence blocking transformers for multi-pulse rectifier in aerospace applications." In 2014 IEEE Energy Conversion Congress and Exposition (ECCE). IEEE, 2014. http://dx.doi.org/10.1109/ecce.2014.6953508.

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