Improved Virtual-Flux-Linkage Observation Method of PWM Rectifier

Abstract:

Article Preview

In order to improve the virtual flux oriented vector control performance of PWM rectifier, an improved observation method of virtual flux-linkage is proposed. To avoid the relevant problems of pure integrator, and to achieve the accurate observation of the grid voltage’s phase, three first order low-pass filters are cascaded to displace the pure integrator. Based on the SVPWM modulation module and the presented algorithm, grid voltage sensorless control system of three-phase PWM rectifier is given. Simulation results have shown that: either in rectifying or inverting status, the amplitude and phase of virtual flux-linkage can be observed accurately, i.e. the control system of PWM rectifier can operate reliably without the grid voltage sensors; the presented estimation method of virtual flux-linkage is effective.

Info:

Periodical:

Edited by:

Prasad Yarlagadda

Pages:

528-532

Citation:

W. S. Bu and L. L. Xu, "Improved Virtual-Flux-Linkage Observation Method of PWM Rectifier", Applied Mechanics and Materials, Vol. 678, pp. 528-532, 2014

Online since:

October 2014

Export:

Price:

$38.00

* - Corresponding Author

[1] Joaquín González Norniella, José M. Cano, Gonzalo Alonso Orcajo, et al. Improving the Dynamics of Virtual-Flux-Based Control of Three-Phase Active Rectifiers. IEEE Transactions on Industrial Electronics, 2014, 61 (1) : 177-187.

DOI: https://doi.org/10.1109/tie.2013.2245614

[2] ZI Zhen-ning, LIN Fei, MA Ying-tao. Research on PWM Rectifiers Control Scheme without Line Voltage Sensors. Electric Drive, 2009, 39(10): 27-30. In Chinese.

[3] ZHAO Ren-de, HE Yi-kang. Virtual Line-flux-linkage Oriented Vector Control of Three-phase Voltage Source PWM Rectifier Without line Voltage Sensors. Proceedings of the CSEE, 2005, 25(20): 56-61. In Chinese.

[4] Lee Dong-Choon, LimDae-Sik. AC Voltage and Current Sensorless Control of Three-phase PWM Rectifiers [J]. IEEE Trans on Power Electronics, 2002, 17(6): 883-890.

DOI: https://doi.org/10.1109/tpel.2002.805592

[5] BU Wen-shao, ZHAI Li-li, WANG Xian-bo. Research on Power Grid Voltage Sensorless DPC of PWM Rectifier. Electric Drive, 2013. 43(2): 56-60. In Chinese.

[6] GUO Xu- gang, TONG Yi- bin, MA Tian-yi. Direct Power Control of PWM Rectifier Based on Virtual Flux. Electric Drive, 43(6): 38-43. In Chinese.

[7] ZHANG Hao, DING Guan-shu. Research on the DPC with Fixed Switching Frequency of Three-level PWM Rectifier Based on Virtual Flux. Power Electronics, 2013, 47(2): 82-85. In Chinese.

[8] WU Feng-jiang, WANG Zhi-wen, SUN Li. Improved virtual flux oriented vector control of PWM rectifier. Electric Machines and Control, 2008(5): 504 -508. In Chinese.

Fetching data from Crossref.
This may take some time to load.