期刊
IETE JOURNAL OF RESEARCH
卷 68, 期 6, 页码 4394-4405出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/03772063.2020.1793693
关键词
Multi-level inverter; OCP-PWM; PWM; THDv
This paper proposes a novel Pulse Width Modulation (PWM) switching technique based on Optimized Carrier Peaks-PWM (OCP-PWM) for controlling both single-phase and three-phase multilevel inverters. The proposed PWM scheme defines the optimum values for carrier peaks through multi-peak selection and minimizes the output voltage Total Harmonic Distortion (THDv), switching frequency (f(s)), and switching losses compared to other carrier-based PWM methods. Experimental results confirm the effectiveness of the presented PWM scheme.
This paper proposes a novel Pulse Width Modulation (PWM) switching technique based on Optimized Carrier Peaks-PWM (OCP-PWM) which can be used to control both single phase and three-phase multilevel inverters. The proposed PWM scheme is designed according to multi-peak selection on carriers a way to define the optimum values for carrier peaks and then minimizing the output voltage Total Harmonic Distortion (THDv), switching frequency (f(s)), and also switching losses, in comparing with the other carrier-based PWM methods. To examine the performance of the presented PWM scheme, a five-level converter has been employed including six power MOSFETs to produce five level in the output. In comparison with typical PWM switching methods for single-phase inverters, the presented PWM scheme produces low harmonic components in the output voltage. To investigate the reliability of the presented PWM scheme for single-phase five-level converters a 2.5kVA/400 V prototype is carried out by applying a TMS320F28335 digital signal processor.
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