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首页> 外文期刊>Arabian Journal for Science and Engineering >A Three-phase Nine-level Fault Tolerant Asymmetrical Inverter
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A Three-phase Nine-level Fault Tolerant Asymmetrical Inverter

机译：三相九级容错不对称逆变器

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摘要

The reliability in inverters has gained a vast importance for their enhanced economic operation of the system. This paper proposes a three-phase reliable nine-level inverter with fault ride through capability. The proposed inverter synthesizes nine levels in the output with two asymmetrical voltage sources configured at a ratio of 1:3 under healthy operation. The inverter is analyzed for open circuit faults in switches. A reliability analysis is carried out for proposed inverter and compared with classical Cascaded-H Bridge. Combined control logic is implemented to control the inverter in accordance with the operating conditions. The circuit is operated with sinusoidal pulse width modulation under healthy condition, and it is made to operate with switching frequency optimal-based pulse width modulation (SFO-PWM) under fault cases, as it enhances fundamental DC value. The proposed inverter is simulated in MATLAB/SIMULINK, and the results are validated by an experimental setup.
机译：逆变器的可靠性对其增强了系统的经济运营增强了重要意义。本文提出了一种三相可靠的九个液位逆变器，具有故障乘坐能力。所提出的逆变器在输出中合成九个水平，其具有两个不对称电压源，其在健康操作下以1：3的比率为1：3。分析逆变器，用于开关中的开路断路器。为提出的逆变器进行可靠性分析，并与经典级联-H桥进行比较。实现了组合的控制逻辑以根据操作条件控制逆变器。在健康状态下，电路以正弦脉冲宽度调制为操作，并且在故障情况下，通过开关频率最佳的基于脉冲宽度调制（SFO-PWM）进行操作，因为它增强了基本的DC值。在MATLAB / SIMULINK中模拟所提出的逆变器，结果通过实验设置验证。

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