为 TPS 校正磁体开发带预调节电压控制器的线性功率运算放大器电源

IF 1.3 4区工程技术 Q3 INSTRUMENTS & INSTRUMENTATION

Journal of Instrumentation Pub Date : 2023-12-01 DOI:10.1088/1748-0221/18/12/T12009

Baosheng Wang, Kuobin Liu, Yongseng Wong

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引用次数: 0

摘要

台湾光子源（TPS）是著名的 3 GeV 同步加速器光源。在过去十年的成功运行中，该光源表现出卓越的性能，特别是光束平均行程停机时间达到了国际标准。所有子系统都保持着持续的设备升级计划，以确保不断改进和保持最佳的研究设施环境。本研究的核心重点是设计和实现 TPS 校正磁体电源，该电源采用线性功率运算放大器 (LPOA) 和预调节电压控制器。该电源主要采用 APEX 公司的 PA05 LPOA，其特点是双极输出、高内部功率耗散和宽带宽。此外，我们还采用了一个直流电流传感器（DCCT）作为电流反馈元件，与预调节电压控制器集成，形成一个闭环电流调制电路，提供 LPOA 所需的可变电压。通过这些措施，我们成功开发出了一种配备预调压控制器的 LPOA 电源装置，用于 TPS 校正磁体。原型设备的最大输出电流为 ±10 A，工作电压为 24 V。通过控制回路设计的验证，该设备实现了快速稳定的输出电流性能。在阶跃响应期间，输出电流纹波保持在 100 μA 以内，上升时间为 75 μs。在利用 0.1 V 干扰信号进行频率响应测试期间，11.2 kHz 带宽下的增益裕度为 -3 dB，5.1 kHz 范围内的相位裕度为 -45∘。长期输出电流稳定性保持在 10 ppm 以内。最后，我们在电源实验室构建了一个硬件原型电路，输入电压为 ±24 V，输出电流为 ±10 A，最大额定功率为 240 W。

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Development of linear power operational amplifier power supply with pre-regulated voltage controller for TPS correction magnets

The Taiwan Photon Source (TPS) is a renowned 3 GeV synchrotron accelerator light source. Over the past decade of successful operation, it has demonstrated outstanding performance, notably in average beam trip downtime, meeting international standards. A continuous regimen of scheduled equipment upgrades has been maintained across all subsystems to ensure ongoing improvement and the preservation of an optimal research facility environment. The central focus of this study revolves around the design and realization of a TPS correction magnet power supply employing Linear Power Operational Amplifiers (LPOA) in conjunction with a pre-regulated voltage controller. The power source predominantly features APEX Corporation's PA05 LPOA, characterized by bipolar output, high internal power dissipation, and wide bandwidth. Additionally, a DC Current Transducer (DCCT) was employed as the current feedback element, integrated with the pre-regulator voltage controller to form a closed-loop current modulation circuit, providing the variable voltage required by the LPOA. Through these measures, we have successfully developed an LPOA power supply unit equipped with a pre-regulated voltage controller for TPS correction magnets. The prototype device boasts a maximum output current of ±10 A, operating at 24 V. Validation through control loop design has led to rapid and stable output current performance. The output current ripple is maintained within 100 μA, with a rise time of 75 μs during step response. During frequency response testing utilizing a 0.1 V disturbance signal, the gain margin resides within -3 dB at an 11.2 kHz bandwidth and the phase margin within -45∘ at a 5.1 kHz range. Long-term output current stability is sustained within ten ppm. Finally, a hardware prototype circuit has been constructed in the power supply laboratory, featuring a ±24 V input voltage and ±10 A output current, achieving a maximum rated power of 240 W.

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来源期刊

Journal of Instrumentation 工程技术-仪器仪表

CiteScore

2.40

自引率

15.40%

发文量

827

审稿时长

7.5 months

期刊介绍： Journal of Instrumentation (JINST) covers major areas related to concepts and instrumentation in detector physics, accelerator science and associated experimental methods and techniques, theory, modelling and simulations. The main subject areas include. -Accelerators: concepts, modelling, simulations and sources- Instrumentation and hardware for accelerators: particles, synchrotron radiation, neutrons- Detector physics: concepts, processes, methods, modelling and simulations- Detectors, apparatus and methods for particle, astroparticle, nuclear, atomic, and molecular physics- Instrumentation and methods for plasma research- Methods and apparatus for astronomy and astrophysics- Detectors, methods and apparatus for biomedical applications, life sciences and material research- Instrumentation and techniques for medical imaging, diagnostics and therapy- Instrumentation and techniques for dosimetry, monitoring and radiation damage- Detectors, instrumentation and methods for non-destructive tests (NDT)- Detector readout concepts, electronics and data acquisition methods- Algorithms, software and data reduction methods- Materials and associated technologies, etc.- Engineering and technical issues. JINST also includes a section dedicated to technical reports and instrumentation theses.