Analysis on harmonic characteristics of interleaving paralleled static inverters under asymmetric conditions

Yihan Chen; Honghao Guo; Haixiao Ma; Chengzi Liu

Analysis on harmonic characteristics of interleaving paralleled static inverters under asymmetric conditions

Vol. 21, No. 1, pp. 38-48, Jan. 2021

10.1007/s43236-020-00158-9

Aviation static inverter

Carrier phase shift modulation

Harmonic distribution

Interleaved parallel

Abstract

With the large number of applications for multi electric aircraft (MEA), the power capacity of the aviation static inverter (ASI) has been continuously improved. Therefore, more and more modular parallel-based topologies are being used in the ASI to achieve power expansion. Combined with carrier phase-shift modulation, the harmonic components of a system can be further reduced. However, due to the parameter asymmetry between paralleled modules and power system disturbances, additional low frequency and DC bias components are superimposed on the control signal. This paper uses exponential function analysis to analyze the harmonic distribution of a modular ASI based on carrier phase-shift modulation under nonideal conditions. In addition, the distribution characteristics of different paralleled topologies are compared. Finally, the correctness of the theoretical analysis is verified by simulation and experimental results.

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Cite this article

[IEEE Style]

Y. Chen, H. Guo, H. Ma, C. Liu, "Analysis on harmonic characteristics of interleaving paralleled static inverters under asymmetric conditions," Journal of Power Electronics, vol. 21, no. 1, pp. 38-48, 2021. DOI: 10.1007/s43236-020-00158-9.

[ACM Style]

Yihan Chen, Honghao Guo, Haixiao Ma, and Chengzi Liu. 2021. Analysis on harmonic characteristics of interleaving paralleled static inverters under asymmetric conditions. Journal of Power Electronics, 21, 1, (2021), 38-48. DOI: 10.1007/s43236-020-00158-9.