A Triple-cycloconverter-based Soft-start Control Strategy

Author(s): Zhengwang Xu, Yuchun Yi*, Yutong Sun, Jiarui Zhang, Cheng Chen, Jiaqi Yu, Wei Mei, Xiangkui Wan

Journal Name: Recent Advances in Electrical & Electronic Engineering
Formerly Recent Patents on Electrical & Electronic Engineering

Volume 13 , Issue 3 , 2020

Become EABM
Become Reviewer
Call for Editor

Graphical Abstract:


Objective: The use of multiple-stage cycloconverters is suitable for variable-frequency speed control of high-voltage, large-capacity motors, for which it is sometimes necessary to establish separate controls for variable-frequency operation and the start-up phase. This approach effectively limits the starting current of the large-capacity motor by switching the phase relationship of the triple circuit’s output voltages to control the overall output voltage.

Methods: We analyze a triple circuit using voltage vector analysis and simulation analysis with MATLAB modeling.

Results: We find that our triple soft-start control strategy can be applied to large-capacity motors, as this strategy results in a pure sine wave output voltage and current, and maintains balance in the three-phase voltage during startup.

Conclusion: In order to further decrease these types of effects, we will conduct more research on a cycloconverter that has six stages of the converter circuit, rather than the three stages mentioned before. Furthermore, the sextuple cycloconverter, which can be used to practically drive high capacity pumps or fans, will be developed by combining the “phase hopping” method and the soft-start method mentioned in this paper.

Keywords: Triple cycloconverter, soft-start, vector analysis, full control rectifier bridge, N-group thyristors, MATLAB.

M. Wang, Z.W. Xu, and T.Z. Wu, "Research on a triple bridge rectifier (article in Chinese)", Elec. Appl., vol. 12, pp. 98-103, 2015.
L.U. Xikun, Commutation control strategy and its implementation for AC/AC cycloconverter based on current without dead zone., Large Electric Mach. Hydraul. Turbine, 2018.
S. Komeda, and H. Fujita, "a phase-shift-controlled high-frequency cycloconverter for induction heaters", IEEE Trans. Power Electron., vol. 99, pp. 1-1, 2017.
S. Mishra, M.M. Shadab, and I. Ahmad, "Simulation and analysis of triggering based single phase bridge type cycloconverter", J. Cont. Instrumen. Eng., vol. 3, pp. 14-18, 2017.
R. Wu, F. Blaabjerg, H. Wang, M. Liserre, and F. Iannuzzo, "Catastrophic failure and fault-tolerant design of IGBT power electronic converters - an overview", In: IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society, Vienna, Austria, 2013, pp. 507-513.
S.N. Manias, Thyristor and single-phase half-wave controlled rectifier., Pow. Elec. Mot. Dri. Sys, 2017, pp. 73-109.
H. Kasahara, T. Tanaka, and S. Okada, "A new high frequency cycloconverter", In: IEEE 2015 Power Electronics Specialists Conference, Toulouse, France, 1985, pp. 165-171.
S.K. Mazumder, and A.K. Rathore, "Primary-side-converter-assisted soft-switching scheme for an AC/AC converter in a cycloconverter-type high-frequency-link inverter", In: IEEE 2011 Transactions on Industrial Electronics, USA, 2011, pp. 4161-4166.
Y.F. Wang, Y.X. Yuan, and Y. Xu, "Research on a novel soft starting method of super high-power and high-voltage motor", Appl. Mech. Mater., vol. 263-266, pp. 604-609, 2013.
L. Liu, J.H. Jiang, and L. Zhang, "“Research of electric motor multi-type soft start control mode based on over-load protection”, Int", J. Image Graph Signal Process., vol. 2, pp. 16-22, 2011.
B. Karanayil, M.F. Rahman, and C. Grantham, "A complete dynamic model for a PWM VSI-fed rotor flux oriented vector controlled induction motor drive using Simulink", In: IEEE 2002 Power Electronics and Motion Control Conference, Beijing, China, 2000, pp. 284-288.
[http://dx.doi.org/10.1109/IPEMC.2000.885415 ]
G.E. Town, and Y.P. Siwakoti, "Design of FPGA-controlled power electronics and drives using MATLAB Simulink", In: IEEE 2013 ECCE Asia Down under (ECCE Asia), Melbourne, VIC, Australia, 2013, pp. 571-577.

Rights & PermissionsPrintExport Cite as

Article Details

Year: 2020
Published on: 27 November, 2018
Page: [378 - 383]
Pages: 6
DOI: 10.2174/2352096512666181127150931
Price: $25

Article Metrics

PDF: 6