为 TPS 设备实现 N+1 冗余的模块化校正器磁体电源

Baosheng Wang, Kuobin Liu, Y. Wong
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引用次数: 0

摘要

本文深入探讨了如何利用现有的 TPS 储存环校正磁体电源实现多模块并联电流输出。我们设计了一个具有 N+1 冗余的控制接口卡,以促进双极大电流并联模块输出。为此,我们采用了多种电流反馈方法,包括外部直流电流传感器 (DCCT) 和内部模块电流反馈信号。在进行 PI 补偿后,这些反馈信号与参考电流信号相结合,计算出每个模块的补偿值,然后传送到每个校正磁体电源 (CMPS) 进行调制,从而实现闭环电流控制。单个 CMPS 模块可提供 ± 48 V/± 10 A 输出,最多可连接八个 CMPS 模块,最大输出为 ± 80 A。通过大量实验测量,长期输出电流稳定性保持在 0.6 mA 或 7.5 ppm 范围内,输出电流频谱主要保持在 500 μA 范围内。此外,该系统还具有 N+1 冗余功能和双极输出电流特性。这些堪称典范的性能属性凸显了我们的设计对于 TPS 磁体电源未来应用的重要性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Realization of modularized corrector magnet power supply with N+1 redundancy for TPS facilities
This paper delves into implementing multi-module parallel current output using the existing TPS storage ring correction magnet power supply. We have devised a control interface card with N+1 redundancy to facilitate bipolar high-current parallel module output. To achieve this, we have employed various current feedback methods, including external DC Current Transducer (DCCT) and internal module current feedback signals. Following PI compensation, these feedback signals are amalgamated with reference current signals to compute compensation values for each module, which are subsequently disseminated to each Corrector Magnet Power Supply (CMPS) for modulation, thereby enabling closed-loop current control. A single CMPS module can deliver ± 48 V/± 10 A output, while up to eight CMPS modules can be interconnected, yielding a maximum output of ± 80 A. Through numerous experimental measurements, the long-term output current stability remains within 0.6 mA, or 7.5 ppm, with the output current spectrum predominantly maintained within 500 μA. Furthermore, the system boasts N+1 redundancy functionality and bipolar output current characteristics. These exemplary performance attributes underscore the criticality of our design for future applications of TPS magnet power supplies.
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