Loss Estimation Method for Three-Phase AC Reactors of Two Types of Structures Using Amorphous Wound Cores in 400-kVA UPS
Loss Estimation Method for Three-Phase AC Reactors of Two Types of Structures Using Amorphous Wound Cores in 400-kVA UPS
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DOI：
10.1109/tpel.2013.2279256
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发表时间：
2014-07-01
影响因子：
6.7
通讯作者：
Inagaki, Katsutoshi
中科院分区：
文献类型：
--
作者：
Kurita, Naoyuki;Onda, Ken'ichi;Inagaki, Katsutoshi
我们开发了一种损耗估计方法，适用于在400 kva UPS中使用非晶铁芯的三相交流电抗器。该方法基于测量的磁芯B-H曲线和铁损耗，并考虑非晶带平面方向，采用有限元方法进行磁模拟。电抗器是由缠绕的堆芯形成的。提出了两种类型的磁腿：结构A，环形与狭缝，结构B，扇形棱柱形从缠绕的核心切割。与传统的硅钢堆芯相比，它们的单位体积分别缩小了9%和19%。这两种电抗器的总损耗都是传统硅钢堆芯电抗器的一半左右，从而使UPS效率提高了0.55%。在脉宽调制（PWM）载波频率下计算的铁损耗与实测损耗在10%以内一致。讨论了压水堆损耗估计方法的准确性。该方法可用于高效逆变器系统滤波电抗器的精确设计。
We have developed a loss estimation method that is applicable to three-phase ac reactors using amorphous cores in a 400-kVA UPS. The method is based on measured the B-H curves and iron losses of the cores, modeled with magnetic simulations of a finite-element method considering the directions of the amorphous ribbon planes. The reactors are formed from wound cores. Two types of magnetic legs are proposed: structure A, toroidal-shaped with slits, and structure B, sector prism-shaped cut from a wound core. Their unit volumes are shrunk by 9% and 19%, respectively, compared with that of a conventional silicon-steel core reactor. Both reactors have about half the total losses of the conventional silicon-steel core reactor, resulting in increased UPS efficiencies of up to 0.55%. The calculated iron losses at the pulse width modulation (PWM) carrier frequencies agree with measured losses within 10%. The accuracy of the loss estimation method for PWM-induced reactors is discussed. The method is confirmed to enable accurate design of a reactor for filtering in a high-efficiency inverter system.