Implementation of cascaded H-bridge DC-link inverter for marine electric propulsion drives

Q2 Engineering

Energy Harvesting and Systems Pub Date : 2022-10-27 DOI:10.1515/ehs-2022-0049

S. N. Rao, Praveen Kumar Varanasi, Suresh Kumar Anisetty, Budagavi Matam Manjunatha

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引用次数: 2

Abstract

Abstract This paper presents a single-phase seven level Cascaded H-Bridge DC-Link (CHBDCL) inverter for marine electric propulsion drives. The speed of propulsion drive can be changed by CHBDCL inverter by converting DC output from the rectifier to variable output voltage with or without change in frequency. The proposed CHBDCL inverter generates more output voltage with minimum harmonic content than classical Multilevel Inverters (MLIs). The CHBDCL inverter necessitates only ‘m + 3’ power devices for ‘m’ number of levels, although the classical MLIs requires ‘(2m − 1)’ power devices. CHBDCL inverter can have the effective performance by utilizing unipolar Sine Pulse Width Modulation (SPWM) and unipolar Space Vector PWM (SVPWM) with sine carrier. The effectiveness of the proposed CHBDCL inverter topology has been verified by using MATLAB/SIMULINK for various modulation indices in terms of voltage levels and harmonic analysis. Furthermore, an experimental setup involving pulse generation from a Field Programmable Gate Array (FPGA) has been used to test the performance of the proposed CHBDCL inverter.

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级联h桥直流逆变器在船舶电力推进系统中的实现

提出了一种用于船舶电力推进驱动的单相七电平级联h桥DC-Link (CHBDCL)逆变器。CHBDCL逆变器通过将整流器的直流输出转换为频率变化或不变化的可变输出电压，可以改变推进驱动器的速度。与传统的多电平逆变器相比，CHBDCL逆变器在谐波含量最小的情况下产生更高的输出电压。CHBDCL逆变器只需要' m + 3 '功率器件的' m '电平数，尽管经典mli需要' (2m−1)'功率器件。CHBDCL逆变器利用单极正弦脉宽调制(SPWM)和带正弦载波的单极空间矢量PWM (SVPWM)实现了有效的逆变性能。通过MATLAB/SIMULINK对各种调制指标的电压电平和谐波分析，验证了所提出的CHBDCL逆变器拓扑的有效性。此外，采用现场可编程门阵列(FPGA)产生脉冲的实验装置来测试所提出的CHBDCL逆变器的性能。

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来源期刊

Energy Harvesting and Systems Energy-Energy Engineering and Power Technology

CiteScore

2.00

自引率

0.00%

发文量