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Fault Determination and Analysis of Complex Switching Structure at Multilevel Inverter

机译：多级逆变器复杂开关结构的故障确定与分析

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In energy conversion studies, some situations have been aimed at up to now. According to this, while the direct voltage is converted from some renewable energy sources to the alternating voltage, the shape of the voltage must be close to the sinus. Therefore, the works are being done on inverters with multi-levels. As the level of the inverters increases, the number of switches and control signals on them increases and it becomes harder to find the possible errors. Finding faults of a device with a large number of transistors with control signals is important, very difficult, and time-consuming task. This paper addresses the issue of determining fault conditions for a multi-level inverter with a very complex switching scheme. The results are analyzed and evaluated after the values obtained in the simulation are validated by the experimental study. For different switch fault conditions at the applications, the harmonic distortion of the alternating voltage is measured and made into tables. After that, different fault conditions of the 21-level inverter structure are explained when fault curves are created from the distortion value of the fault signals.
机译：在能量转换研究中，一些情况旨在目前。根据这一点，虽然直接电压从一些可再生能源转换为交流电压，但电压的形状必须靠近窦。因此，在具有多级别的逆变器上进行了工作。随着逆变器的级别增加，它们的交换机数量和控制信号的数量增加，找到可能的错误变得更难。找到具有大量具有控制信号的晶体管的设备的故障是重要的，非常困难，耗时的任务。本文通过非常复杂的交换方案解决了多级逆变器确定故障条件的问题。通过实验研究验证在模拟中获得的值验证后分析和评估结果。对于应用的不同开关故障条件，测量交流电压的谐波失真并制成表格。之后，当故障曲线从故障信号的失真值创建时，解释了21级逆变器结构的不同故障条件。

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