Research on Control Strategy of Isolated AC-DC Matrix Converter under Input Unbalance

Authors

Wenlang Deng, College of Information Engineering, Xiangtan University, Xiangtan 411105, China;
Li Yong, College of Information Engineering, Xiangtan University, Xiangtan 411105, China;
Hongbin Pan, College of Information Engineering, Xiangtan University, Xiangtan 411105, China;

Abstract

Abstract: To reduce the active power fluctuation of the isolated AC-DC matrix converter (IAMC) under the input unbalance and to suppress the resonance of the LC filter, a deadbeat direct power control strategy based on active damping is proposed. The strategy uses the grid-side current and its delay component to calculate the IAMC input side filter capacitor voltage, which eliminates the high-precision voltage sensor of traditional active damping control, reduces the hardware cost, without the rotation coordinate transformation and phase-locked loops, so the calculation cost is small. The simulation results show that the proposed control strategy can effectively suppress the current harmonics at the grid side, reduce the reactive power DC component of the system, stabilize the active power output of the system, and has good dynamic performance under the input voltage unbalanced condition.

Recommended Citation

Deng, Wenlang; Yong, Li; and Pan, Hongbin (2021) "Research on Control Strategy of Isolated AC-DC Matrix Converter under Input Unbalance," Journal of System Simulation: Vol. 33: Iss. 7, Article 25.
DOI: 10.16182/j.issn1004731x.joss.19-0505
Available at: https://dc-china-simulation.researchcommons.org/journal/vol33/iss7/25

First Page

1729

Revised Date

2020-01-16

DOI Link

https://doi.org/10.16182/j.issn1004731x.joss.19-0505

Last Page

1738

CLC

TM46;TP391

Recommended Citation

Deng Wenlang, Li Yong, Pan Hongbin. Research on Control Strategy of Isolated AC-DC Matrix Converter under Input Unbalance[J]. Journal of System Simulation, 2021, 33(7): 1729-1738.

DOI

10.16182/j.issn1004731x.joss.19-0505