Control of Three-Phase PWM Converters using Feedback Linearization

Van Tan Luong * , Tran Thanh Trang , Phan Van Hiep , & Phan Thi Chieu My

* Correspondence: Van Tan Luong (email: LuongVT@vhu.edu.vn)

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Received: 15 Nov 2016
Revised:
Accepted: 23 Nov 2016
Published: 30 Nov 2022
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Văn, L. . T., Trần, T. T., Phan, H. V., & Phan, M. T. C. (2022). Control of Three-Phase PWM Converters using Feedback Linearization. Van Hien University Journal of Science 4(4), 5.
Issue
Volume 4 - Issue 4 (2016)
Section
Điện - Điện tử - Tự động hóa

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Abstract

In this paper, a novel nonlinear control scheme is proposed to regulate the DC output voltage and the AC input current of a three-phase pulse-width modulation (PWM) converter. First, depending on the power balance between the input and output sides of the system, the nonlinear model of the PWM converter is derived with the state variables such as AC input currents and DC output voltage. Then, by applying the feedback linearization, the system is linearized and the control law is achieved by pole placement. With this control strategy, the response of the output voltage is faster than conventional cascade control method. In addition, the input current is regulated to be sinusoidal and the source power factor can be controlled at unity. The validity of the control method has been verified by simulation results.
Keywords: AC/DC PWM converter, DC voltage control, feedback linearization

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References

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