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Ride through Strategy for a Three-Level Dual Z-Source Inverter Using TRIAC

机译：使用TRIAC的三电平双Z源逆变器穿越策略

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摘要

A new ride through strategy is introduced in a three-level dual Z-source inverter, for isolation under semiconductor switching failure condition. Here the output will have no significant decrease in the amplitude and quality. Instead of diodes, the triacs are added to the inverter source ends, as it can perform a bidirectional power transfer also it can operate well in both low and high voltage operating conditions. The faulted part can be isolated by simply altering the firing pulses for turning on/off the triacs using the carrier based SPWM technique and resulting in a boosting output with zero common mode voltage. Consequently, it forms a common floating point or null point with a zero common mode voltage. It is experimentally verified by using MATLAB, and digital oscilloscope.
机译：在三电平双Z源逆变器中引入了一种新的穿越策略，用于在半导体开关故障情况下进行隔离。此处，输出的幅度和质量不会明显下降。三端双向可控硅开关元件代替二极管，而是被添加到逆变器源端，因为它可以执行双向功率传输，并且在低压和高压操作条件下都可以正常工作。使用基于载波的SPWM技术，只需更改触发三端双向可控硅开关元件的触发脉冲即可隔离故障部分，并以零共模电压产生升压输出。因此，它以零共模电压形成一个公共浮点或零点。使用MATLAB和数字示波器对它进行了实验验证。

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