Abstract:

To meet the high steady-state accuracy, high voltage and high current performance requirements of the power supply for the ITER sensor test steady-state platform, the high power supply is designed with H bridge cascaded carrier phase shifting method. Meanwhile, harmonic analysis is carried out, which can effectively improve equivalent switching frequency of converter and improve output waveform. The supply has been verified by experiments and achieved good results.

Key words: H bridge cascade, Carrier phase shift, Harmonic analysis, Steady-state precision

摘要：

为满足ITER传感器测试平台对电源高稳态精度、高压及大电流性能需求，通过H桥级联载波移相方式对大功率电源进行设计，并进行谐波分析，有效地提高变流器等效开关频率，改善输出波形。经实验验证，取得较好效果。

关键词: H桥级联, 载波移相, 谐波分析, 稳态精度