Wavelet PWM Technique for Single-Phase Three-Level Inverters

Chun-Fang Zheng; Bo Zhang; Dong-Yuan Qiu; Xiao-Hui Zhang; Le-Ming Xiao

Wavelet PWM Technique for Single-Phase Three-Level Inverters

Vol. 15, No. 6, pp. 1517-1523, Nov. 2015

10.6113/JPE.2015.15.6.1517

Single-phase three-level inverters

Sinusoidal pulse width modulation (SPWM)

Wavelet modulation

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Abstract

The wavelet PWM (WPWM) technique has been applied in two-level inverters successfully, but directly applying the WPWM technique to three-level inverters is impossible. This paper proposes a WPWM technique suitable for a single-phase three-level inverter. The work analyzes the control strategy with the WPWM and obtains the design of its parameters. Compared with the SPWM technique for a single-phase three-level inverter under the same conditions, the WPWM can obtain high magnitudes of the output fundamental frequency component, low total harmonic distortion, and simpler digital implementation. The feasibility experiment is given to verify of the proposed WPWM technique.

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Cite this article

[IEEE Style]

C. Zheng, B. Zhang, D. Qiu, X. Zhang, L. Xiao, "Wavelet PWM Technique for Single-Phase Three-Level Inverters," Journal of Power Electronics, vol. 15, no. 6, pp. 1517-1523, 2015. DOI: 10.6113/JPE.2015.15.6.1517.

[ACM Style]

Chun-Fang Zheng, Bo Zhang, Dong-Yuan Qiu, Xiao-Hui Zhang, and Le-Ming Xiao. 2015. Wavelet PWM Technique for Single-Phase Three-Level Inverters. Journal of Power Electronics, 15, 6, (2015), 1517-1523. DOI: 10.6113/JPE.2015.15.6.1517.