Sliding Mode Control of Three-Phase Four-Leg Inverters via State Feedback

Long-Yue Yang; Jian-Hua Liu; Chong-Lin Wang; Gui-Fu Du

Sliding Mode Control of Three-Phase Four-Leg Inverters via State Feedback

Vol. 14, No. 5, pp. 1028-1037, Sep. 2014

10.6113/JPE.2014.14.5.1028

Inverter

Sliding mode control

Voltage control

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Abstract

To optimize controller design and improve static and dynamic performances of three-phase four-leg inverter systems, a compound control method that combines state feedback and quasi-sliding mode variable structure control is proposed. The linear coordinate change matrix and the state variable feedback equations are derived based on the mathematical model of three-phase four-leg inverters. Based on system relative degrees, sliding surfaces and quasi-sliding mode controllers are designed for converted linear systems. This control method exhibits the advantages of both state feedback and sliding mode control. The proposed controllers provide flexible dynamic control response and excellent stable control performance with chattering suppression. The feasibility of the proposed strategy is verified by conducting simulations and experiments.

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Cite this article

[IEEE Style]

L. Yang, J. Liu, C. Wang, G. Du, "Sliding Mode Control of Three-Phase Four-Leg Inverters via State Feedback," Journal of Power Electronics, vol. 14, no. 5, pp. 1028-1037, 2014. DOI: 10.6113/JPE.2014.14.5.1028.

[ACM Style]

Long-Yue Yang, Jian-Hua Liu, Chong-Lin Wang, and Gui-Fu Du. 2014. Sliding Mode Control of Three-Phase Four-Leg Inverters via State Feedback. Journal of Power Electronics, 14, 5, (2014), 1028-1037. DOI: 10.6113/JPE.2014.14.5.1028.