Renesas 基于 GaN 的 3.6kW 三电平 Vienna 整流器参考设计如何提升电能质量
Enhance Power Quality with a GaN-based AC/DC Three-Level Vienna Rectifier
Renesas 推出基于 GaN 器件的 3.6kW 单向三电平 AC/DC Vienna 整流器参考设计，采用 d–q 坐标系下的 SPWM 控制实现中点电压平衡。实测效率大于 98%，功率因数大于 0.99，输入电流 THD 小于 3%，面向数据中心等应用的前端 AC/DC 转换。
AI 生成摘要 · 以原文为准
By Renesas 10.07.2026 0
Data centers have become essential to almost every part of the global economy with the continuing rise in computing demands. Modern data centers, consisting of rows of equipment racks for storing, processing, and sharing data, require front-end AC/DC converters that are reliable, operate at unity power factor, offer low input current THD, and achieve high efficiency. The Vienna rectifier is a grid-connected, nongenerative three-level PWM boost converter topology that enables reduced semiconductor stress and improved power quality compared to conventional two-level rectifiers. Owing to these advantages, it is widely used in telecommunication power systems, data centers, wind energy systems, and other high-power applications.
This solution presents the design and control implementation of a 3.6kW rectifier aimed at improving input current quality and DC bus voltage regulation. The design employs a uni-directional three-level AC/DC converter based on high-efficiency wide-bandgap Renesas GaN devices. A SPWM control strategy, formulated in the d–q reference frame, ensures simple and effective neutral-point voltage balancing. In addition, the rectifier integrates power-quality enhancement features to maintain stable energy conversion under dynamic operating conditions. This reference design demonstrates an efficiency > 98%, a power factor > 0.99, and total harmonic distortion < 3%.
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来源：EE Times · eetimes.com