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Journal articles on the topic '12-pulse rectifier'

Author: Grafiati

Published: 4 June 2021

Last updated: 13 February 2022

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1

Abdollahi, Rohollah. "Pulse doubling in zigzag–connected autotransformer–based 12–pulse ac–dc converter for power quality improvement." Journal of Electrical Engineering 63, no. 6 (December 1, 2012): 357–64. http://dx.doi.org/10.2478/v10187-012-0053-3.

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This paper presents a pulse doubling technique in a 12-pulse ac-dc converter which supplies direct torque controlled motor drives (DTCIMDs) in order to have better power quality conditions at the point of common coupling. The proposed technique increases the number of rectification pulses without significant changes in the installations and yields in harmonic reduction in both ac and dc sides. The 12-pulse rectified output voltage is accomplished via two paralleled six-pulse acdc converters each of them consisting of three-phase diode bridge rectifiers. An autotransformer is designed to supply the rectifiers. The design procedure of magnetics is in a way such that makes it suitable for retrofit applications where a six-pulse diode bridge rectifier is being utilized. Independent operation of paralleled diode-bridge rectifiers, i.e. dc-ripple re-injection methodology, requires a Zero Sequence Blocking Transformer (ZSBT). Finally, a tapped interphase reactor is connected at the output of ZSBT to double the pulse numbers of output voltage up to 24 pulses. The aforementioned structure improves power quality criteria at ac mains and makes them consistent with the IEEE-519 standard requirements for varying loads. Furthermore, near unity power factor is obtained for a wide range of DTCIMD operation. A comparison is made between 6-pulse, 12-pulse, and proposed converters from view point of power quality indices. Results show that input current total harmonic distortion (THD) is less than 5% for the proposed topology at various loads.

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2

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 (April 12, 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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3

Lou, Bei, Xi Peng Guo, Jun Xin, Gen Yong Chen, Jin Feng Yang, and Xiao Yi Chen. "Simulation Analysis of Zhengzhou Metro Power Supply System Rectifier Unit." Advanced Materials Research 732-733 (August 2013): 707–11. http://dx.doi.org/10.4028/www.scientific.net/amr.732-733.707.

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Developing the Zhengzhou rail transit as a new transportation plays an important role in easing traffic congestion and promoting the economic development. The principle, connection mode and harmonic generation mechanism of the rectifier unit of Zhengzhou rail transit is analysed in theoretical. 12-pulse and 24-pulse rectifier unit model is simulated in MATLAB/Simulink environment. The simulation result shows that the 24-pulse rectifier unit can reduce the harmonic current injected to the power system greatly, and abate the effects on the utility grid compared with the 12-pulse rectifier unit. The 24-pulse rectifier can smoothen the output voltage, reduce the harmonic content and improve the quality of DC power supply. So it can obviously reduce the adverse effects on public power grid.

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4

Sun, Yu Tian, Yong Sun, Xue Long Du, Hong Yuan, Cheng Qi, and Zhi Zhen Liu. "The Comparison and Analysis on Harmonic Suppression of EV Charging Station." Applied Mechanics and Materials 325-326 (June 2013): 503–7. http://dx.doi.org/10.4028/www.scientific.net/amm.325-326.503.

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In order to propose reasonable method of harmonic suppression for EV charging station, three methods that are 6-pulse rectifier with APF, 12-pulse rectifier, PWM rectifiers are analyzed and compared. Firstly,the corresponding simulation model of charger and charging station are built based on the principle of EV charger and the main method of harmonic suppression. Then the harmonic content and power factor for different simulation model are researched. Meanwhile, the advantages and disadvantages of different simulation model are studied according to the results of simulation, the use of performance and economy. At last, the improvement measure and development direction for three methods are proposed.

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5

Izadinia, Ali Reza, and Hamid Reza Karshenas. "Current Shaping in a Hybrid 12-Pulse Rectifier Using a Vienna Rectifier." IEEE Transactions on Power Electronics 33, no. 2 (February 2018): 1135–42. http://dx.doi.org/10.1109/tpel.2017.2685459.

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6

Iwaszkiewicz and Mysiak. "Supply System for Three-Level Inverters Using Multi-Pulse Rectifiers with Coupled Reactors." Energies 12, no. 17 (September 2, 2019): 3385. http://dx.doi.org/10.3390/en12173385.

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The paper presents a proposal of the multi-pulse AC/DC converter for providing supply for multilevel inverters and considerably reducing the line current distortion factor. It can be applied as a suitable source of DC voltage and is convenient to supply such inverters that need three or more voltage terminals to supply all sections of the inverter. The converter in question works as a multi-pulse rectifier supplying a three-level NPC (Neutral Point Clamped) inverter. The load introduced by the inverter is simulated as an impedance depended on a selected inverter state. All possible states are determined by using a set of three digits: 0, 1, 2. The sourcing converter is constructed from diode bridge rectifiers connected in parallel as well as the system of magnetically coupled reactors. The reactors are used to shift subsequent line voltages so that they create a multiphase voltage system supplying component rectifiers. The article presents two alternative rectifiers: A 12-pulse diode rectifier using one magnetically coupled reactor unit 3CRλ, and a 24-pulse one using three 3CRλ units. Simulation and experimental tests have been executed and selected results included. Conclusion and discussion are added.

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7

Wang, Jingfang, Xuliang Yao, Xu Gao, and Shiyan Yang. "Harmonic Reduction for 12-Pulse Rectifier Using Two Auxiliary Single-Phase Full-Wave Rectifiers." IEEE Transactions on Power Electronics 35, no. 12 (December 2020): 12617–22. http://dx.doi.org/10.1109/tpel.2020.2992592.

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8

Li, Yang, and Yong Jun Yu. "Harmonic Calculation of 12-Pulse Rectifier and Determination of Filter Capacity." Advanced Materials Research 588-589 (November 2012): 834–38. http://dx.doi.org/10.4028/www.scientific.net/amr.588-589.834.

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In order to enable engineers to assess the impact of harmonic currents produced by the 12-pulse rectifier unit on the grid. In this paper, through experimental and theoretical reasoning, I discusses in detail the harmonic calculation parameters required of rectifier unit and calculate the filter capacity which reached the filtering standards for single-tuned filter capacitor. Through this method, we can make a good assessment of the harmonics generated by the project and propose effective control measures for the harmonic excess in the beginning of the project construction.

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9

Kwon, B. H., and E. H. Song. "Design of current source using 12-pulse phase-controlled rectifier." IEE Proceedings B Electric Power Applications 138, no. 4 (1991): 185. http://dx.doi.org/10.1049/ip-b.1991.0023.

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10

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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11

Iwaszkiewicz, J., A. Muc, and P. Mysiak. "A 12-pulse rectifier using coupled reactors for supplying three-inverters." Renewable Energy and Power Quality Journal 17 (July 2019): 589–92. http://dx.doi.org/10.24084/repqj17.382.

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12

Assad Gonçalves, Vinícius, and Falcondes José Mendes de Seixas. "Generalization Of The Deltadifferential Autotransformer For 12 And 18-pulse Rectifier." Eletrônica de Potência 12, no. 1 (March 1, 2007): 35–42. http://dx.doi.org/10.18618/rep.2007.1.035042.

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13

Wang, Jingfang, Xuliang Yao, Qi Guan, and Shiyan Yang. "A novel 12‐pulse full‐wave rectifier with simple circuit configuration." International Journal of Circuit Theory and Applications 48, no. 10 (July 26, 2020): 1676–95. http://dx.doi.org/10.1002/cta.2837.

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14

WANG, Jingfang, Xuliang YAO, Qi GUAN, Changji DENG, and Shiyan YANG. "Low harmonic 12-pulse rectifier with a circulating current shaping circuit." TURKISH JOURNAL OF ELECTRICAL ENGINEERING & COMPUTER SCIENCES 28, no. 3 (May 8, 2020): 1355–70. http://dx.doi.org/10.3906/elk-1907-204.

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15

Mino, K., Guanghai Gong, and J. W. Kolar. "Novel hybrid 12-pulse boost-type rectifier with controlled output voltage." IEEE Transactions on Aerospace and Electronic Systems 41, no. 3 (July 2005): 1008–18. http://dx.doi.org/10.1109/taes.2005.1541445.

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16

Meng, FanGang, Wei Yang, and SHiYan Yang. "Active harmonic suppression of paralleled 12-pulse rectifier at DC side." Science China Technological Sciences 54, no. 12 (October 27, 2011): 3320–31. http://dx.doi.org/10.1007/s11431-011-4617-4.

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17

Kulesz, Barbara, Andrzej Sikora, and Adam Zielonka. "The Application of Ant Colony Algorithms to Improving the Operation of Traction Rectifier Transformers." Computers 8, no. 2 (March 28, 2019): 28. http://dx.doi.org/10.3390/computers8020028.

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In this paper, we discuss a technical issue occurring in electric traction. Tram traction may use DC voltage; this is obtained by rectifying AC voltage supplied by the power grid. In the simplest design— one which is commonly used—only diode uncontrolled rectifiers are used. The rectified voltage is not smooth; it always contains a pulsating (AC) component. The amount of pulsation varies. It depends, among other factors, on the design of the transformer-rectifier set. In the 12-pulse system, we use a three-winding transformer, consisting of one primary winding and two secondary windings: one is delta-connected and the other is star-connected. The unbalance of secondary windings is an extra factor increasing the pulsation of DC voltage. To equalize secondary side voltages, a tap changer may be used. The setting of the tap changer is the question resolved in this paper; it is optimized by application of the ACO (ant colony optimization algorithm). We have analyzed different supply voltage variants, and in particular, distorted voltage containing 5th and 7th harmonics. The results of ant colony optimization application are described in this paper.

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18

., D. Sangeeta Sarali. "MITIGATION OF HARMONICS USING THYRISTOR BASED 12 PULSE VOLTAGE SOURCE PWM RECTIFIER." International Journal of Research in Engineering and Technology 01, no. 03 (March 25, 2012): 267–70. http://dx.doi.org/10.15623/ijret.2012.0103012.

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19

Yoshii, Tsurugi. "Effect of Harmonic Voltages on DC-Output Voltage of 12-pulse Rectifier." IEEJ Transactions on Industry Applications 138, no. 2 (2018): 99–104. http://dx.doi.org/10.1541/ieejias.138.99.

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20

Saravana, P. P., R. Kalpana, B. Singh, and G. Bhuvaneswari. "Application of voltage multiplier in 12‐pulse rectifier for sinusoidal input current." Electronics Letters 54, no. 22 (November 2018): 1266–68. http://dx.doi.org/10.1049/el.2018.5084.

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21

Villablanca, Miguel E., Jorge I. Nadal, and Mauricio A. Bravo. "A 12-Pulse AC–DC Rectifier With High-Quality Input/Output Waveforms." IEEE Transactions on Power Electronics 22, no. 5 (September 2007): 1875–81. http://dx.doi.org/10.1109/tpel.2007.904185.

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22

Gao, Lei, Wei Ming Tong, and Fan Gang Meng. "Analytical Model of 12-Pulse AC-DC Converter Based on Switch Function." Applied Mechanics and Materials 143-144 (December 2011): 223–27. http://dx.doi.org/10.4028/www.scientific.net/amm.143-144.223.

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This paper proposes a frequency domain method to analyze the harmonics components of input current and ripple coefficients of output voltage in 12-pulse diode rectifier system. Based on frequency domain linearity and analysis of commutation, the dc side output voltage and input line current are divided into two segments, and then expressions of the input current and output voltage are obtained. Some simulation results about THD, power factor and ripple coefficient are shown to validate the correctness of the proposed method

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23

Kalpana, R., Saravana Prakash P., Vidyasagar V. S., and Bhim Singh. "Investigations on Open-Circuit Faults of Zigzag Autoconfigured Transformer-Based 12-Pulse Rectifier." IEEE Transactions on Industry Applications 56, no. 2 (March 2020): 1599–608. http://dx.doi.org/10.1109/tia.2019.2963175.

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24

Tzeng, Y. S. "Harmonic analysis of parallel-connected 12-pulse uncontrolled rectifier without an interphase transformer." IEE Proceedings - Electric Power Applications 145, no. 3 (1998): 253. http://dx.doi.org/10.1049/ip-epa:19981850.

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25

Božović, P., and P. Pejović. "Current-injection-based 12-pulse rectifier using a single three-phase diode bridge." IET Electric Power Applications 1, no. 2 (2007): 209. http://dx.doi.org/10.1049/iet-epa:20060130.

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26

Kulesz, Barbara. "RECTIFIER TRANSFORMERS IN ELECTRIC TRACTION SUBSTATIONS ‐ DIFFERENT DESIGNS." TRANSPORT 20, no. 2 (April 20, 2005): 66–72. http://dx.doi.org/10.3846/16484142.2005.9637998.

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Electric traction in Poland is supplied with dc voltage which is obtained from the power grid via traction substations equipped with transformers and rectifiers. The paper gives the results of the investigation of different designs of these transformer‐rectfier sets ‐ namely, 12‐ and 24‐pulse systems. The comparison of electrical quantities such as ripple content, harmonic content of supply current and output voltage and utilisation of transformer secondary windings is provided.

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27

Damin, Zhang, Wang Shitao, Zhou Fengwu, Wang Lujun, and Lu Zhengyu. "Predictive Fast DSP-Based Current Controller for a 12-Pulse Hybrid-Mode Thyristor Rectifier." IEEE Transactions on Power Electronics 28, no. 11 (November 2013): 5263–71. http://dx.doi.org/10.1109/tpel.2013.2242489.

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28

MENG, Fangang, Lei GAO, Wei YANG, and Shiyan YANG. "Comprehensive comparison of the delta- and wye-connected autotransformer applied to 12-pulse rectifier." Journal of Modern Power Systems and Clean Energy 4, no. 1 (January 2016): 135–45. http://dx.doi.org/10.1007/s40565-016-0186-7.

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29

T, Rajesh, and Nirmalkumar A. "A Shunt Active Power Filter for 12 Pulse Converter Using Source Current Detection Approach." International Journal of Power Electronics and Drive Systems (IJPEDS) 7, no. 1 (March 1, 2016): 225. http://dx.doi.org/10.11591/ijpeds.v7.i1.pp225-234.

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A shunt Active Power Filter (APF) with current detection at the source side is considered as a closed-loop system from the view of the whole power distribution system, which is expected with better harmonics filtering performance compared with conventional current detection methods such as load current detection and open loop control. This paper introduces an efficient source current detection method (direct) control scheme to mitigate the grid current harmonics generated by the twelve pulse converter. The proposed system uses Control Rectifier (12 –pulse converter) which efficiently regulates the DC voltage by varying the angle of each 6 pulse converter. Moreover, the proposed system uses three winding transformer which eliminates the harmonics during equal angles switching at each six pulse converter which in turn simplifies the operation of the SAPF. The proposed system is simulated in MATLAB SIMULINK to evaluate the performance of the proposed system.

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30

Basic, D., V. S. Ramsden, and P. K. Muttik. "Harmonic filtering of high-power 12-pulse rectifier loads with a selective hybrid filter system." IEEE Transactions on Industrial Electronics 48, no. 6 (2001): 1118–27. http://dx.doi.org/10.1109/41.969390.

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31

Kassas, Mahmoud. "Analysis of 12-Pulse Rectifier Operation Under Balanced and Unbalanced Voltage Source with Input Impedance." Arabian Journal for Science and Engineering 38, no. 6 (March 14, 2013): 1437–47. http://dx.doi.org/10.1007/s13369-013-0607-0.

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32

Watanakul, Narin. "Stand-Alone Photovoltaic Based on In-Phase Voltage Injection for Electroplating Industry Factory." Advanced Materials Research 853 (December 2013): 306–11. http://dx.doi.org/10.4028/www.scientific.net/amr.853.306.

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This paper presents an application of stand-alone Photovoltaic (PV) systems for AC/DC power conversion for electroplating systems. In these control systems, the external source voltage is generated from a PV stand-alone, the proposed voltage injected method by in phase controller into line input voltage secondary of power transformer. The electroplating process is a capacity 0-250A maximum output system with uses a 12-pulse diode rectifier, using a conventional 3-phase bridge 6-pulse diode rectifier. The process voltage control to electroplating, that performance of the proposed series voltage controller method (producing injected voltage), contribute to voltage control by injecting or absorbing active power, to electroplating. The advantage of this principle will result the system that can saving energy 50% and compensation 100 percent during a power outage. The experimental, and simulation results by MATLAB program are used as a guideline for analyzing and designing the parameters of electroplating system.

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33

Qian, Luo Jiang, Jun Yan, Pei Hong Zhou, and Ding Zhen Nie. "A RTDS Model for Simulating HVDC Transient Valve Voltage during Commutation Period." Applied Mechanics and Materials 644-650 (September 2014): 3705–8. http://dx.doi.org/10.4028/www.scientific.net/amm.644-650.3705.

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This paper presents a RTDS model applied to simulate periodic commutation impulse voltage of HVDC convent valve. The model’s main configure and basic parameters are matching to a typical monopole system which include 12-pulse converters of rectifier and inverter, convert-transformers, DC transmission line, DC filters and AC equivalent power network. Among the system model, the valve components of rectifier are User-Define-Component (UDC) model with RC branch for describing detail valve internal. And also, discrete time step apply 2.5μS non real-time of RTDS for complying with high frequency transient. The validation test is carried out and the result show that the model can simulate accurately valve voltage waveform.

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34

Isozaki, Kohei, and Hirofumi Akagi. "Harmonic Filtering Performance of a Hybrid Active Filter for a Three-Phase 12-Pulse Diode Rectifier." IEEJ Transactions on Industry Applications 130, no. 12 (2010): 1341–48. http://dx.doi.org/10.1541/ieejias.130.1341.

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35

Solanki, Jitendra, Norbert Frohleke, and Joachim Bocker. "Implementation of Hybrid Filter for 12-Pulse Thyristor Rectifier Supplying High-Current Variable-Voltage DC Load." IEEE Transactions on Industrial Electronics 62, no. 8 (August 2015): 4691–701. http://dx.doi.org/10.1109/tie.2015.2393833.

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36

Meng, Fangang, Lei Gao, Shiyan Yang, and Wei Yang. "Effect of Phase-Shift Angle on a Delta-Connected Autotransformer Applied to a 12-Pulse Rectifier." IEEE Transactions on Industrial Electronics 62, no. 8 (August 2015): 4678–90. http://dx.doi.org/10.1109/tie.2015.2405058.

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37

Kalpana, R., Khimavath Sai Chethana, Saravana Prakash P., and Bhim Singh. "Power Quality Enhancement Using Current Injection Technique in a Zigzag Configured Autotransformer-Based 12-Pulse Rectifier." IEEE Transactions on Industry Applications 54, no. 5 (September 2018): 5267–77. http://dx.doi.org/10.1109/tia.2018.2851566.

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38

Meng, Fangang, Wei Yang, Yi Zhu, Lei Gao, and Shiyan Yang. "Load Adaptability of Active Harmonic Reduction for 12-Pulse Diode Bridge Rectifier With Active Interphase Reactor." IEEE Transactions on Power Electronics 30, no. 12 (December 2015): 7170–80. http://dx.doi.org/10.1109/tpel.2015.2391272.

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39

le Roux, Abraham D., Hendrik du T. Mouton, and Hirofumi Akagi. "DFT-Based Repetitive Control of a Series Active Filter Integrated With a 12-Pulse Diode Rectifier." IEEE Transactions on Power Electronics 24, no. 6 (June 2009): 1515–21. http://dx.doi.org/10.1109/tpel.2009.2015882.

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40

Biela, Juergen, Dominik Hassler, John Schönberger, and Johann W. Kolar. "Closed-Loop Sinusoidal Input-Current Shaping of 12-Pulse Autotransformer Rectifier Unit With Impressed Output Voltage." IEEE Transactions on Power Electronics 26, no. 1 (January 2011): 249–59. http://dx.doi.org/10.1109/tpel.2010.2052633.

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41

Wang, Qianggang, Jiafang Wu, Junqing Gao, Jian Wang, Chunyan Li, Jiajia Wang, and Niancheng Zhou. "Frequency-domain harmonic modeling and analysis for 12-pulse series-connected rectifier under unbalanced supply voltage." Electric Power Systems Research 162 (September 2018): 23–36. http://dx.doi.org/10.1016/j.epsr.2018.04.022.

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42

Meng, Fangang, Wei Yang, Shiyan Yang, and Lei Gao. "Active Harmonic Reduction for 12-Pulse Diode Bridge Rectifier at DC Side With Two-Stage Auxiliary Circuit." IEEE Transactions on Industrial Informatics 11, no. 1 (February 2015): 64–73. http://dx.doi.org/10.1109/tii.2014.2363522.

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43

Meng, Fangang, Lei Gao, and Wei Yang. "Effect of circulating current on input line current of 12‐pulse rectifier with active inter‐phase reactor." IET Power Electronics 9, no. 7 (June 2016): 1398–405. http://dx.doi.org/10.1049/iet-pel.2014.0849.

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44

Kim, Jong-Su, Dong-Hoan Seo, and Jae-Hyuk Choi. "Harmonic and Torque Ripple Reduction of Electric Propulsion System using 12-Pulse Diode Rectifier by Auxiliary Supply." Journal of the Korean Society of Marine Environment and Safety 19, no. 1 (February 28, 2013): 66–70. http://dx.doi.org/10.7837/kosomes.2013.19.1.066.

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45

Chua, Kein Huat, Dick Sang Hoo, Yun Seng Lim, Mohammad BabrdelBonab, Li Wang, and Pei Yin Wong. "Harmonic Analysis of a Third Rail Systems: A Case Study in Malaysia." Journal of Electronics and Advanced Electrical Engineering 1, no. 2 (May 3, 2021): 26–33. http://dx.doi.org/10.47890/jeaee/2020/keinhuatchua/11120010.

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Harmonic distortion is one of the most important power quality issues in third rail electrification systems. The use of rectifiers and inverters in the third rail system can inject a significant amount of harmonic distortion to the electrical network. This paper aims to investigate the harmonic distortions for a DC urban third rail system at various operating conditions. The electrical network of Mass Rapid Transit Line 2 (MRT 2) Malaysia is modelled using ETAP software. The model had considered the effect of the inter-phase transformer in the 12-pulse rectifier. The current injection method is used to measure harmonic distortion at Point of Common Coupling (PCC) at the 132 kV and 33 kV buses. A normal and degraded operating conditions of power supply are investigated. From the simulation results, it is found that the 11th and 13th order harmonics have exceeded the statutory limit at 33 kV network for the normal operating condition. For the degraded operating condition, only the 11th harmonic order has exceeded the statutory limit. Keywords: Harmonic Distortion; DC Urban Rail; Various Operating Conditions

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46

Tian, Shangen, David Campos-Gaona, Vinícius A. Lacerda, Raymundo E. Torres-Olguin, and Olimpo Anaya-Lara. "Novel Control Approach for a Hybrid Grid-Forming HVDC Offshore Transmission System." Energies 13, no. 7 (April 3, 2020): 1681. http://dx.doi.org/10.3390/en13071681.

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This article describes a hybrid topology of high-voltage direct current (HVDC) for offshore wind farms using a series connection of a voltage source converter (VSC) and six-pulse diode rectifier (6P-DR). In this topology, the offshore side VSC (OF-VSC) acts as a grid-forming converter to maintain the PCC (point of common coupling) voltage of offshore wind farms (WF) and frequency. In addition, the OF-VSC functions as an active power filter to suppress the 5th, 7th, 11th, and 13th order harmonic current components produced by the 6P-DR, making it almost sinusoidal. Due to the 6P-DR being used in the hybrid converter, this new configuration reduces the total cost of the converters and losses, while preserving the power flow to the onshore gird. Compared to the fully-rated converter and hybrid converter based on a 12-pulse diode rectifier, the power loss and cost are reduced, and in addition, the proposed hybrid converter does not require a phase shift transformer nor a high number of diodes. A 200 MW in an HVDC transmission system using the hybrid configuration was simulated in PSCAD. The results show that the system operated correctly and the harmonic components were filtered.

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47

Mino, Kazuaki, Yasuyuki Nishida, and Johann W. Kolar. "Novel Hybrid 12-Pulse Line-Interphase-Transformer Boost-Type Rectifier with Controlled Output Voltage and Sinusoidal Utility Currents." IEEJ Transactions on Industry Applications 127, no. 4 (2007): 382–90. http://dx.doi.org/10.1541/ieejias.127.382.

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Meng, Fangang, Wei Yang, and Shiyan Yang. "Effect of Voltage Transformation Ratio on the Kilovoltampere Rating of Delta-Connected Autotransformer for 12-Pulse Rectifier System." IEEE Transactions on Industrial Electronics 60, no. 9 (September 2013): 3579–88. http://dx.doi.org/10.1109/tie.2012.2205351.

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Singh, Sanjeev, and Bhim Singh. "Particle swarm optimisation for power quality improvement of a 12-pulse rectifier-chopper fed LCI-synchronous motor drive." International Journal of Intelligent Systems Technologies and Applications 11, no. 3/4 (2012): 267. http://dx.doi.org/10.1504/ijista.2012.052513.

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de Oliveira Costa Neto, Antonio, Ana Lucia Soares, Gustavo Brito de Lima, Danillo Borges Rodrigues, Ernane Antonio Alves Coelho, and Luiz Carlos Gomes Freitas. "Optimized 12-Pulse Rectifier With Generalized Delta Connection Autotransformer and Isolated SEPIC Converters for Sinusoidal Input Line Current Imposition." IEEE Transactions on Power Electronics 34, no. 4 (April 2019): 3204–13. http://dx.doi.org/10.1109/tpel.2018.2850280.

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