A novel low-ripple adjustable DC regulated power supply with single-phase AC input and control strategy

Yuan Shuo; Zhang Xiaoping; Li Qing

doi:10.11884/HPLPB202537.250051

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Article Navigation > High Power Laser and Particle Beams > 2025 > Accepted Manuscript

Yuan Shuo, Zhang Xiaoping, Li Qing. A novel low-ripple adjustable DC regulated power supply with single-phase AC input and control strategy[J]. High Power Laser and Particle Beams. doi: 10.11884/HPLPB202537.250051

Citation:

Yuan Shuo, Zhang Xiaoping, Li Qing. A novel low-ripple adjustable DC regulated power supply with single-phase AC input and control strategy[J]. High Power Laser and Particle Beams. doi: 10.11884/HPLPB202537.250051

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A novel low-ripple adjustable DC regulated power supply with single-phase AC input and control strategy

doi: 10.11884/HPLPB202537.250051

Yuan Shuo^{1, 2
,},
Zhang Xiaoping^{1, 2
,
,},
Li Qing³

1.
National-Local Joint Engineering Laboratory of Marine Mineral Resources Exploration Equipment and Safety Technology Hunan University of Science and Technology, Xiangtan, 411201, China
2.
College of Information and Electrical Engineering, Hunan University of Science and Technology Department, Xiangtan, 411201, China
3.
Hunan Xiangtan Electric Power Co., Ltd., Xiangtan, 411101, China

Received Date: 2025-03-21
Accepted Date: 2025-07-29
Rev Recd Date: 2025-08-12

Available Online: 2025-08-20

Abstract

Abstract

Background
Single-phase AC-input low-ripple DC regulated power supplies are critical for sensitive applications. However, conventional designs often suffer from complex power circuit configurations, increasing cost and size while potentially compromising reliability. Achieving simultaneously low output voltage ripple, high steady-state accuracy, and wide output voltage adjustability remains a significant challenge in power electronics.
Purpose
This study aims to overcome the limitations of existing topologies by proposing a novel single-phase AC-input low-ripple adjustable DC regulated power supply circuit. Furthermore, it develops a dedicated advanced control strategy to meet stringent low-ripple and high-stability performance requirements.
Methods
The fundamental principles of the proposed topology were analyzed, and its mathematical model established to characterize voltage transmission. A composite control scheme integrating reference output voltage amplitude self-compensation using improved Iterative Learning Control (ILC), and a dual-loop Proportional Complex Integral (PCI) control structure, was designed for precise low-ripple regulation and stability. Effectiveness was validated via simulation and experimental testing on a prototype.
Results
Validation confirmed successful operation. Comparative analysis demonstrated the topology's advantages: simpler/compact structure, wide adjustable output voltage, significantly reduced ripple, and improved steady-state accuracy. The control strategy effectively ensured stability and met performance targets.
Conclusions
The combined novel topology and advanced control provide a viable solution for high-quality single-phase AC-input adjustable DC supplies.

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References(24)

References

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