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Pure sine wave gain and efficiency improvement of three-phase cascade multilevel inverter

机译:三相级联多电平逆变器的纯正弦波增益和效率提高

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Large high power electric drives and utility applications necessitate advanced power electronics converter to maintain high and medium power loads with proper modulation system. There are many multilevel inverter topologies familiarizing with as a substitute of high and medium power load. A multilevel inverter should achieve and progress both high power ratings and the better performance with an expected THD, power factor and efficiency. The cascade multilevel inverter is successfully the most possible topology for using as a power converter for medium and high power applications due to having PWM gate controlling of solid-state switches. It reduces disproportionately using of transformers, bulky capacitor and diodes which are mandatory element at several multilevel topologies. An equivalent MATLAB/Simulink model of proposed system is developed to investigate its performance. The proposed converter exhibits higher efficiency as compared to the conventional converter circuits.
机译:大型高功率电力驱动器和公用事业应用需要先进的功率电子转换器,以通过适当的调制系统维持高功率和中功率负载。有许多多层次的逆变器拓扑结构可替代高中功率负载。多电平逆变器应以预期的总谐波失真,功率因数和效率实现并提高高功率额定值和更好的性能。由于具有固态开关的PWM栅极控制,级联多电平逆变器已成功成为最适合用作中功率和高功率应用功率转换器的拓扑。它不成比例地减少了变压器,大容量电容器和二极管的使用,而变压器,大容量电容器和二极管是几种多层拓扑结构中必不可少的元素。开发了一个等效的MATLAB / Simulink模型来研究其性能。与常规的转换器电路相比,所提出的转换器表现出更高的效率。

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