Variable frequency control and filter design for optimum energy extraction from a SiC wind inverter
Variable frequency control and filter design for optimum energy extraction from a SiC wind inverter
复制标题
变频控制和滤波器设计可实现 SiC 风力逆变器的最佳能量提取
DOI：
10.23919/ipec.2018.8507493
复制
发表时间：
2018
期刊：
影响因子：
--
通讯作者：
A. Castellazzi
中科院分区：
文献类型：
--
作者：
A. Hussein;A. Castellazzi
本文提出了一个12千瓦的3相2级风力逆变器的优化控制和滤波器的设计，特别是考虑到输入功率的间歇性。特别地，所应用的控制方案旨在通过改变开关频率来优化低负载效率，该低负载效率对应于时间上最频繁的操作条件。具体地，提出了碳化硅（SiC）转换器，其在相对高的频率下操作，从而使得能够显著减少滤波器元件。因此，还需要优化输出滤波器设计，以确保保持逆变器的电磁性能和SiC实现的尺寸减小。这是通过设计一种基于软饱和磁芯材料的可变电感来实现的。
This paper proposes the optimised control and filter design of a 12 kW 3-phase 2-level wind inverter specifically taking into account the intermittent nature of the input power. In particular, the applied control scheme aims at optimising the low-load efficiency, which corresponds to the most frequent operational condition in time, by varying the switching frequency. Specifically, a silicon carbide (SiC) converter is addressed, which operates at relatively high frequency, thus enabling a significant reduction of the filter elements. So, the output filter design also needs to be optimised to ensure that the inverter electro-magnetic performance and the size reduction enabled by SiC are kept. That is achieved by designing a variable inductor based on soft saturation core material.