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Journal articles on the topic 'Load Commutated Inverter (LCI)'

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1

Ekemb, Gabriel, Fouad Slaoui-Hasnaoui, Joseph Song-Manguelle, P. M. Lingom, and Issouf Fofana. "Instantaneous Electromagnetic Torque Components in Synchronous Motors Fed by Load-Commutated Inverters." Energies 14, no. 11 (2021): 3223. http://dx.doi.org/10.3390/en14113223.

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This paper proposes time-domain analytical expressions of the instantaneous pulsating torque components in a synchronous machine air gap when supplied by a load-commutated-inverter (LCI) system. The LCI technology is one of the most used variable frequency drives when very high power and low speed are required in applications such as pipeline recompression and decompression, as well as liquefied natural gas compression. In such applications, synchronous motors are used because of their high efficiency resulting from a separated supply of the current to their rotor through the excitation circui
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2

Mohamadian, S., and M. H. Khanzade. "A Five-Level Current-Source Inverter for Grid-Connected or High-Power Three-Phase Wound-Field Synchronous Motor Drives." Engineering, Technology & Applied Science Research 6, no. 5 (2016): 1139–48. https://doi.org/10.5281/zenodo.162584.

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Simple converter structure, inherent short-circuit protection and regenerative capability are the most important advantages of current-source inverters (CSI’s) which have made them suitable for medium-voltage high-power drives. Usually in grid-connected gas turbine generators or pumped storage hydro power plants, efficient and reliable current-source load-commutated inverters (LCI’s) with thyristor switches are employed. Also, this type of CSI is widely used in very large drives with power ratings of tens of megawatts to supply wound-field synchronous motors (WFSM’s). However, LCI’s suffer fro
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3

Mohamadian, S., and M. H. Khanzade. "A Five-Level Current-Source Inverter for Grid-Connected or High-Power Three-Phase Wound-Field Synchronous Motor Drives." Engineering, Technology & Applied Science Research 6, no. 5 (2016): 1139–48. http://dx.doi.org/10.48084/etasr.695.

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Simple converter structure, inherent short-circuit protection and regenerative capability are the most important advantages of current-source inverters (CSI’s) which have made them suitable for medium-voltage high-power drives. Usually in grid-connected gas turbine generators or pumped storage hydro power plants, efficient and reliable current-source load-commutated inverters (LCI’s) with thyristor switches are employed. Also, this type of CSI is widely used in very large drives with power ratings of tens of megawatts to supply wound-field synchronous motors (WFSM’s). However, LCI’s suffer fro
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4

Ji, Lian Tao, De Shun Wang, Bin Yu, et al. "Research on Constant Frequency Electrical Angle Start Method of LCI." Advanced Materials Research 1070-1072 (December 2014): 1258–62. http://dx.doi.org/10.4028/www.scientific.net/amr.1070-1072.1258.

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Load-commutated inverters (LCIs) are the key starting device of wound-field synchronous motor. By detecting the rotor position and inputting a variable frequent current to the stator windings, the LCI can drive the motor from standstill to a given speed. Thus, rotor position detecting method comes to be the key techniques, but at the ultra-low speed period, the motor’s terminal voltage is too low to accurately sampling and is vulnerable to the interference, which brings risks to the variable frequency driving. In this paper, through analyzing the principles of LCIs and synchronous machine, a c
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5

Wang, Ting, Kun Chen, Long’en Zhang, Xingyang Hu, Hengxuan Li, and Pangqi Ye. "Research on Fault Identification of Hybrid Multi-Feed High-Voltage Direct Current System Based on Line Commutated Converter and Voltage Source Converter." Energies 17, no. 9 (2024): 2215. http://dx.doi.org/10.3390/en17092215.

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With the rapid development of voltage source converter (VSC) and line commutated converter (LCC) technology and the relative concentration of power and load, the inverter station of the flexible DC system is fed into the same AC bus with the conventional DC rectifier station, and the high-voltage direct current (HVDC) parallel hybrid feed system is formed in structure. As the electrical distance between the converter stations is very close, when a fault occurs in the near area, the current on the AC wiring on the VSC side will fluctuate greatly, resulting in the misoperation of the AC wiring p
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6

Puskarich, K. A., W. E. Reid, and P. S. Hamer. "Harmonic experiences with a large load-commutated inverter drive." IEEE Transactions on Industry Applications 37, no. 1 (2001): 129–36. http://dx.doi.org/10.1109/28.903135.

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7

SINGH, BHIM, S. P. SRIVASTAVA, and S. K. BARAL. "LOAD COMMUTATED INVERTER FED VARIABLE SPEED RELUCTANCE MOTOR DRIVE." Electric Machines & Power Systems 18, no. 3 (1990): 277–82. http://dx.doi.org/10.1080/07313569008909472.

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8

Sudhoff, S. D., E. L. Zivi, and T. D. Collins. "Start up performance of load-commutated inverter fed synchronous machine drives." IEEE Transactions on Energy Conversion 10, no. 2 (1995): 268–74. http://dx.doi.org/10.1109/60.391892.

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9

Singh, B., S. Singh, and S. P. Hemanth Chender. "Power quality improvement in load commutated inverter-fed synchronous motor drives." IET Power Electronics 3, no. 3 (2010): 411. http://dx.doi.org/10.1049/iet-pel.2008.0345.

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10

DOTIHAL, P. S., BHIM SINGH, and R. B. SAXENA. "PERFORMANCE ANALYSIS OF LOAD COMMUTATED INVERTER FED CAGE INDUCTION MOTOR DRIVE." Electric Machines & Power Systems 18, no. 3 (1990): 261–75. http://dx.doi.org/10.1080/07313569008909471.

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11

Toliyat, H. A., N. Sultana, D. S. Shet, and J. C. Moreira. "Brushless permanent magnet (BPM) motor drive system using load-commutated inverter." IEEE Transactions on Power Electronics 14, no. 5 (1999): 831–37. http://dx.doi.org/10.1109/63.788479.

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12

Kwak, S., and H. A. Toliyat. "A Hybrid Solution for Load-Commutated-Inverter-Fed Induction Motor Drives." IEEE Transactions on Industry Applications 41, no. 1 (2005): 83–90. http://dx.doi.org/10.1109/tia.2004.841025.

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13

Antar, Rakan Khalil, Basil Mohammed Saied, and Rafid Ahmed Khalil. "Power Quality Improvement of High Voltage DC Link using Modified Shunt Active Power Filter." Al-Kitab Journal for Pure Sciences 1, no. 1 (2018): 54–66. http://dx.doi.org/10.32441/kjps.v1i1.91.

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A new control strategy for active power filters is proposed, modeled and implemented in order to improve the power quality of a line commutated converter High voltage DC link. The ability of reactive power and harmonics reductions are generally met by using passive and active power filters. In this paper, modified active power filter with a modified harmonics pulse width modulation algorithm is used to minimize the source harmonics and force the AC supply current to be in the same phase with AC voltage source at both sending and receiving sides of a line commutated converter high voltage DC li
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14

Dawson, F. P., and P. Jain. "A comparison of load commutated inverter systems for induction heating and melting applications." IEEE Transactions on Power Electronics 6, no. 3 (1991): 430–41. http://dx.doi.org/10.1109/63.85911.

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15

Shadab, Mirza Mohammad, Mohammad Arifuddin Mallick, Mohammad Tufail, and M. S. Jamil Asghar. "Development of a Novel Three Phase Grid-Tied Multilevel Inverter Topology." International Journal of Power Electronics and Drive Systems (IJPEDS) 7, no. 3 (2016): 826. http://dx.doi.org/10.11591/ijpeds.v7.i3.pp826-834.

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The conventional line-commutated ac-to-dc converters/ inverters have square-shaped line current. It contains higher-order harmonics which generates EMI and it causes more heating of the core of distribution or power transformers. PWM based inverters using MOSFET/IGBT have higher switching losses, and the power handling capability and reliability are quite low in comparison to thyristors/ SCR. A thyristor based forced commutated inverters are not suitable for PWM applications due to the problems of commutation circuits. A pure sinusoidal voltage output or waveform with low harmonic contents is
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16

Mukherjee, K., S. SenGupta, T. K. Bhattacharya, and A. K. Chattopadhyay. "Simplified steady-state model of an SCR-inverter-based load-commutated commutatorless series motor." IEEE Transactions on Energy Conversion 17, no. 2 (2002): 197–202. http://dx.doi.org/10.1109/tec.2002.1009468.

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17

Mukherjee, K., S. SenGupta, T. K. Bhattacharya, and A. K. Chattopadhyay. "Simplified Steady-State Model of an SCR-Inverter-Based Load-Commutated Commutatorless Series Motor." IEEE Power Engineering Review 22, no. 3 (2002): 56. http://dx.doi.org/10.1109/mper.2002.4312056.

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18

Jain, A. K., and V. T. Ranganathan. "Starting scheme for load commutated inverter-fed wound field synchronous machine using an auxiliary low-power voltage source inverter." IET Electric Power Applications 5, no. 6 (2011): 494. http://dx.doi.org/10.1049/iet-epa.2010.0122.

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19

Afanasyev, Aleksandr A., and Evgenii G. Paimurzov. "A SENSORLESS CONTROL METHOD OF THYRISTOR STATICAL FREQUENCY CONVERTER FOR STARTING SYNCHRONOUS MACHINE." Vestnik Chuvashskogo universiteta, no. 2 (June 30, 2023): 41–54. http://dx.doi.org/10.47026/1810-1909-2023-2-41-54.

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Relevance of study. Starting of the medium voltage synchronous machine at standstill is one of the main problems in the operation of unregulated synchronous electric drives. The optimal solution is starting the excited synchronous machine fed by the thyristor statical frequency converter. A sensorless control of the statical frequency converter for thyristor switching of load-commutated inverter to functions of synchronous machine angular rotor position in the area of zero and low speed, has not yet received a clear solution.
 
 The purpose of this study is the design of the sensorle
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20

Hyung-Soo Mok, Seung-Ki Sul, and Min-Ho Park. "A load commutated inverter-fed induction motor drive system using a novel DC-side commutation circuit." IEEE Transactions on Industry Applications 30, no. 3 (1994): 736–45. http://dx.doi.org/10.1109/28.293724.

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21

Banerjee, D., and V. T. Ranganathan. "Load-Commutated SCR Current-Source-Inverter-Fed Induction Motor Drive With Sinusoidal Motor Voltage and Current." IEEE Transactions on Power Electronics 24, no. 4 (2009): 1048–61. http://dx.doi.org/10.1109/tpel.2008.2009112.

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22

Sebastian C, Richu, and P. P. Rajeevan. "Load-Commutated SCR-Based Current Source Inverter Fed Induction Motor Drive With Open-End Stator Windings." IEEE Transactions on Industrial Electronics 65, no. 3 (2018): 2031–38. http://dx.doi.org/10.1109/tie.2017.2739699.

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23

Richu, Sebastian C., and P. P. Rajeevan. "A Load Commutated Multilevel Current Source Inverter Fed Open-End Winding Induction Motor Drive With Regeneration Capability." IEEE Transactions on Power Electronics 35, no. 1 (2020): 816–25. http://dx.doi.org/10.1109/tpel.2019.2916224.

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24

T., Suhasini, and Mohana Rekha M. "Analysis and Control of Grid Connected DFIG Under Sub and Super Synchronous Modes of Operation." International Journal of Trend in Scientific Research and Development 2, no. 2 (2018): 1009–17. https://doi.org/10.31142/ijtsrd9568.

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The most reliable system in the present scenario for effective use of the wind power is grid integrated Doubly Fed Induction Generator DFIG . The implementation of a simple power converter arrangement in the rotor circuit for variable speeds has been proposed. Depending on wind speed, a DFIG based variable speed wind turbine is capable of operating in sub synchronous or super synchronous mode of operation using power electronic converters. The power flow in the rotor circuit is controlled for controlling the stator power in both the modes of operation by effecting rotor voltage through IGBT in
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25

Park, Jin-Woo, Dong-Ho Kim, Jeong-Hyuk Kim, Kyung-Kyu Lee, and Hyun-Sam Jung. "Determination and Novel Implementation of Interval Time for Enhancing Forced Commutation Performance of Load Commutated Inverter in Low-Speed Operation." TRANSACTIONS OF KOREAN INSTITUTE OF POWER ELECTRONICS 30, no. 2 (2025): 133–38. https://doi.org/10.6113/tkpe.2025.30.2.133.

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26

Besselmann, Thomas, Stefan Almer, and Hans Ferreau. "Model Predictive Control of Load Commutated Inverter-fed Synchronous Machines." IEEE Transactions on Power Electronics, 2015, 1. http://dx.doi.org/10.1109/tpel.2015.2511095.

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27

Gong, Wenkang, Shangzhi Pan, Wenqiang Lin, et al. "A Synchronous Auxiliary Resonant Commutated Pole Soft-switching Inverter with Improved Load Adaptability." IEEE Transactions on Power Electronics, 2021, 1. http://dx.doi.org/10.1109/tpel.2021.3114263.

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28

Liu, Chuang, Yanping Wang, Qijun Li, and Qiang Wang. "Novel Auxiliary Resonant Pole Inverter and its Optimal Control Strategy." IEEJ Transactions on Electrical and Electronic Engineering, December 12, 2023. http://dx.doi.org/10.1002/tee.23959.

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Conventional inverters operate in hard‐switching mode, and as the switching frequency increases, the switching losses increase dramatically. Increasing the switching frequency helps reduce the size and cost of the inverter, but too high a switching frequency generates greater switching losses, which affects the inverter's transmission efficiency. In response to the problem that conventional hard‐switching inverters cannot be higher in frequency and have high switching losses and low transmission efficiency, an optimized auxiliary resonant commutated inverter and control strategy are proposed t
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