Generic placeholder image

Recent Advances in Electrical & Electronic Engineering

Author(s): Wenshao Bu*, Chaochao Wang and Jinwei Li

DOI: 10.2174/2352096512666190306143342

DownloadDownload PDF Flyer Cite As
Research on the Control Strategy of PWM Rectifier under Unbalanced Grid

Page: [426 - 437] Pages: 12

  • * (Excluding Mailing and Handling)

Abstract

Background: Aiming at the three-phase voltage source PWM rectifier (VSR), there have been some researches on the neural network control strategies, but the unbalanced power grid condition is always neglected. Meanwhile, about the self-detection technology of the unbalanced power grid voltage, there are still few researches.

Methods: Under the unbalanced power grid conditions, this work presents a power grid voltage sensorless control strategy of the three-phase VSR. Based on the radial basis function neural network (RBF) theory, a newly PI controller with parameter self-tuning function is studied, and the RBF-PI controller is used for the closed-loop controls of the voltage and current variables. By means of T/4 delay method, the positive- and negative-sequence components of the power grid side current, and those of the equivalent virtual flux-linkage of unbalanced power grid are extracted. From the equivalent virtual flux-linkage, the unbalanced power grid voltage is reconstructed online.

Results: Under the load mutation condition, the power grid voltage sensorless control of threephase VSR is achieved, the system response characteristics are analyzed. From the simulation experimental results, it can be seen that the unbalanced power grid voltage can be quickly tracked, and the sinusoidal control of the power grid side current can be achieved. In addition, the control system has a series of advantages, such as a faster dynamic response speed, a stronger robustness and a smaller DC side voltage ripple.

Conclusion: The proposed unbalanced power grid voltage sensorless control strategy of threephase VSR is effective.

Keywords: Unbalanced power grid, power grid voltage sensorless, RBF-PI controller, outer voltage loop, inner current loop, VRS System.

Graphical Abstract

[1]
K.J. Song, G. Konstantinou, M.L. Wu, P. Acuna, R.P. Aguilera, and V.G. Agelidis, "Windowed SHE-PWM of interleaved four-quadrant converters for resonance suppression in traction power supply systems", IEEE Trans. Power Electron., vol. 32, no. 10, pp. 7870-7881, 2017.
[http://dx.doi.org/10.1109/TPEL.2016.2636882]
[2]
M. Chinchilla, S. Arnaltes, and J.C. Burgos, "Control of permanent magnet generators applied to variable-speed wind energy systems connected to the grid", IEEE Trans. on Energ. Convers., vol. 21, no. 1, pp. 130-135, 2006.
[3]
A.F. Cupertino, H.A. Pereira, and V.F. Mendes, "Modeling, design and control of a solar array simulator based on two-stage converters", J. Cont. Aut. Electric. Syst., vol. 28, no. 5, pp. 585-596, 2017.
[4]
Z.X. Wang, and Y.G. Wei, "Study on single-stage AC/DC conversion device based on single-cycle control", Recent Adv. Electr. Electron. Eng., vol. 9, no. 1, pp. 73-79, 2016.
[http://dx.doi.org/10.2174/2352096509666151207231727]
[5]
L. Yin, Z.M. Zhao, T. Lu, S. Yang, and G.Y. Zou, "An improved DC-link voltage fast control scheme for a PWM rectify-inverter system", IEEE Trans. Ind. Appl., vol. 50, no. 1, pp. 462-473, 2014.
[http://dx.doi.org/10.1109/TIA.2013.2269037]
[6]
M. Alam, W. Eberle, D. Gautam, C. Botting, N. Dohmeier, and F. Musavi, "A hybrid resonant pulse-width modulation bridgeless AC-DC power factor correction converter", IEEE Transact. Indust. Applicat., vol. 53. 2017, no. 2, pp. 1406-1415, .
[http://dx.doi.org/10.1109/TIA.2016.2638806]
[7]
N. Visairo-Cruz, C. Nunez-Gutierrez, E. Alcazar, and E. Rodriguez, A single nonlinear current control for PWM rectifier robust to input disturbances and dynamic loads., Mathem. Prob. Engi., Vol, 2017, pp. 1-8.
[http://dx.doi.org/10.1155/2017/3831929]
[8]
M.B. Ketzer, and C.B. Jacobina, "Sensorless control technique for PWM rectifiers with Voltage disturbance rejection and adaptive power factor", IEEE Trans. Ind. Electron., vol. 62, no. 2, pp. 1140-1151, 2015.
[http://dx.doi.org/10.1109/TIE.2014.2341603]
[9]
S. Chattopadhyay, and V. Ramanarayanan, "A voltage- sensorless control method to balance the input currents of a three-wire boost rectifier under unbalanced input voltages condition", IEEE Trans. Ind. Electron., vol. 52, no. 2, pp. 386-398, 2005.
[http://dx.doi.org/10.1109/TIE.2005.843917]
[10]
Z. Zheng, Z.W. Zhang, and Z.H. Zhang, "Calculation algorithm of positive and negative sequence components under unbalanced grid voltage", Power Electron., vol. 48, no. 5, pp. 68-73, 2014.
[11]
J. Li, and W.X. Song, "Voltage-sensor-less control of three- phase converter under unbalance grid voltage", Electric Drive, vol. 46, no. 8, pp. 75-80, 2016.
[12]
Z.Y. Zeng, W.Y. Zheng, R.X. Zhao, C. Zhu, and Q.W. Yuan, "Modeling, modulation, and control of the three-phase four-switch PWM rectifier under balanced voltage", In: IEEE Transact. Power Electron., vol. 31. 2016. no. 7, pp. 4892-4905.
[13]
Y.C. Zhang, and C.Q. Qu, "Model predictive direct power control of PWM rectifiers Under unbalanced network conditions", IEEE Trans. Ind. Electron., vol. 62, no. 7, pp. 4011-4022, 2015.
[http://dx.doi.org/10.1109/TIE.2014.2387796]
[14]
Y.C. Zhang, C.Q. Qu, and J.H. Gao, "Performance improvement of direct power control of PWM rectifier under unbalanced network", IEEE Trans. Power Electron., vol. 32, no. 3, pp. 2319-2328, 2017.
[http://dx.doi.org/10.1109/TPEL.2016.2562262]
[15]
Y.C. Zhang, J.H. Gao, and C.Q. Qu, "Relationship between two direct power control methods for PWM rectifiers under unbalanced network", IEEE Trans. Power Electron., vol. 32, no. 5, pp. 4084-4094, 2017.
[http://dx.doi.org/10.1109/TPEL.2016.2593723]
[16]
P.C. Zhu, and W.X. Huang, "Direct power control for PWM rectifier without line voltage sensors", Power Electron., vol. 50, no. 02, pp. 11-13, 2016.
[17]
R.D. Zhao, and Y.K. He, "Virtual line-flux-linkage oriented vector control of three-phase voltage source PWM rectifier without line voltage sensors", Zhongguo Dianji Gongcheng Xuebao, vol. 25, no. 20, pp. 56-61, 2005.
[18]
M.B. Ketzer, and C.B. Jacobina, "Sensorless PWM rectifiers with active filter action", In: IEEE 24th International Symposium on Industrial Electronics, Buzios, Brazil, 2015, pp. 405-410.
[http://dx.doi.org/10.1109/ISIE.2015.7281502]
[19]
Y.S. Cho, and K.B. Lee, "Virtual-flux-based predictive direct power control of three-phase PWM rectifiers with fast dynamic response", IEEE Trans. Power Electron., vol. 31, no. 4, pp. 3348-3359, 2016.
[http://dx.doi.org/10.1109/TPEL.2015.2453129]
[20]
S. Shokoufeh, S. Mahsa, F. Payam, N. Ghadimi, and B. Taheri, "Environmental economic dispatch using improved artificial bee colony algorithm", Evol. Syst., vol. 8, no. 3, pp. 233-242, 2017.
[http://dx.doi.org/10.1007/s12530-017-9189-5]
[21]
M. Mohsen, T. Faraz, S. Esmaeil, N. Ghadimi, and O. Abedinia, "Small-scale building load forecast based on hybrid forecast engine", Neural Process. Lett., vol. 48, no. 1, pp. 329-351, 2018.
[http://dx.doi.org/10.1007/s11063-017-9723-2]
[22]
A. Noruzi, T. Banki, O. Abedinia, and N. Ghadimi, "A new method for probabilistic assessments in power systems, combining monte carlo and stochastic- algebraic methods", Complexity, vol. 21, no. 2, pp. 100-110, 2015.
[http://dx.doi.org/10.1002/cplx.21582]
[23]
N. Ghadimi, A. Akbarimajd, H. Shayeghi, and O. Abedinia, "A new prediction model based on multi-block forecast engine in smart grid", J. Ambient Intell. Humaniz. Comput., vol. 9, no. 6, pp. 1873-1888, 2018.
[http://dx.doi.org/10.1007/s12652-017-0648-4]
[24]
O. Abedinia, N. Amjady, and N. Ghadimi, "Solar energy forecasting based on hybrid neural network and improved metaheuristic algorithm", Comput. Intell., vol. 34, no. 1, pp. 241-260, 2018.
[http://dx.doi.org/10.1111/coin.12145]
[25]
Y. Qu, D. Ning, Z.C. Lai, Q. Cheng, and L. Mu, "Neural networks based on PID control for greenhouse temperature", Nongye Gongcheng Xuebao (Beijing), vol. 27, no. 02, pp. 307-311, 2011.
[26]
P. Zhang, and Y.C. Hao, "Application of rough set-neural network in civil aviation aircraft fault data processing", Kongzhi Gongcheng, vol. 23, no. 1, pp. 87-90, 2016.
[27]
H. Acikgoz, R. Coteli, M. Ustundag, and B. Dandil, "Robust control of current controlled pwm rectifiers using type-2 fuzzy neural networks for unity power factor operation", J. Electr. Eng. Technol., vol. 13, no. 2, pp. 822-828, 2018.
[28]
L. Diao, D. Wang, Z.H. Peng, and L. Guo, "Predictor-based iterative neural dynamic surface control for three-phase voltage source PWM rectifier", IEEJ Trans. Electr. Electron. Eng., vol. 12, no. 6, pp. 942-951, 2017.
[http://dx.doi.org/10.1002/tee.22486]
[29]
J.H. Li, Z.D. Yin, Y. Feng, and B.H. Zhang, "Improved control method for PWM rectifier and the research on its dynamic ability", Electric Drive, vol. 46, no. 10, pp. 21-25, 2016.
[30]
D.H. Liu, A. Hu, G.S. Wang, and W.H. Hu, "Application of fast dynamic current control for PWM converter", Electric Drive, vol. 40, no. 9, pp. 33-37, 2010.