新型单相交流输入低纹波可调直流稳压电源及其控制策略

袁硕; 张小平; 李庆

doi:10.11884/HPLPB202537.250051

新型单相交流输入低纹波可调直流稳压电源及其控制策略

doi: 10.11884/HPLPB202537.250051

袁硕^{1, 2,},
张小平^{1, 2, ,},
李庆³

1.
湖南科技大学海洋矿产资源探采装备与安全技术国家地方联合工程实验室，湖南湘潭 411201
2.
湖南科技大学信息与电气工程学院，湖南湘潭 411201
3.
湖南湘电动力有限公司，湖南湘潭 411101

基金项目: 国家重点研发计划（2023YFC2809304）；湖南省科技创新计划（2023ZJ1020、2024AQ2031）

详细信息

作者简介:
袁　硕，978456198@qq.com

通讯作者:
张小平，zxp836@163.com。

中图分类号: TM46
计量
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- 被引次数: 0
出版历程
- 收稿日期: 2025-03-21
- 修回日期: 2025-08-12
- 录用日期: 2025-07-29
- 网络出版日期: 2025-08-20

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

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

摘要

摘要: 针对目前单相交流输入低纹波直流稳压电源存在主电路结构复杂等不足，提出一种新型的单相交流输入低纹波可调直流稳压电源主电路拓扑结构。介绍了该新型拓扑结构的基本工作原理，建立了其数学模型并分析了其电压传输特性，根据其低纹波高稳定度控制要求提出一种基于改进迭代学习控制的参考输出电压幅值自补偿与双闭环比例复数积分(PCI)控制相结合的控制方法，最后对其效果进行了仿真与实验验证，同时与目前常用单相交流输入低纹波直流稳压电源进行了对比分析，结果表明：所提出的单相交流输入低纹波可调直流稳压电源拓扑结构具有电路结构简单、输出电压任意可调、纹波小、稳态精度高等特点，因而具有较好的实际应用价值。
- 单相交流输入可调直流稳压电源 /
- 新型主电路拓扑结构 /
- 改进迭代学习控制 /
- 双闭环PCI控制
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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图 1 单相交流输入低纹波可调直流稳压电源拓扑结构

Figure 1. Topology structure of a low-ripple adjustable DC regulated power supply with single-phase AC input

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图 2 Buck-Boost 逆变等效电路图

Figure 2. Diagram of Buck-Boost inverter equivalent circuit

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图 3 单相交流输入低纹波可调直流稳压电源总体结构框图

Figure 3. Structural diagram of low-ripple adjustable DC regulated power supply with single-phase AC input

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图 4 基于改进迭代学习控制的参考输出电压幅值自补偿控制原理框图

Figure 4. Principle diagram of reference output voltage amplitude self-compensation control based on improved iterative learning control

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图 5 改进迭代学习控制算法原理框图

Figure 5. Principle block diagram of improved iterative learning control algorithm

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图 6 双闭环PCI控制策略原理框图

Figure 6. Principle diagram of dual closed-loop PCI control strategy

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图 7 参考输出电压为100 V时的输出电压仿真波形

Figure 7. Simulation waveform of output voltage at 100 V reference output voltage

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图 8 参考输出电压为300 V时的输出电压仿真波形

Figure 8. Simulation waveform of output voltage at 300 V reference output voltage

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图 9 实验样机

Figure 9. Experimental prototype

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图 10 参考输出电压为100 V时的输出电压波形

Figure 10. Waveform of the output voltage at a reference output voltage of 100 V

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图 11 参考输出电压为300 V时的输出电压波形

Figure 11. Waveform of the output voltage at a reference output voltage of 300 V

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表 1 本结构主电路参数表

Table 1. Main circuit parameter table of this structure

Num.	component name	parameter value
1	inductor in a Buck-Boost circuit L/μH	10
2	capacitor in a Buck-Boost circuit C/μF	18
3	output filter capacitor C_f1/μF	200
4	output filter capacitorC_f2/μF	80
5	output filter inductor L_f1/μH	190
6	output filter inductor L_f2/μH	1.9
7	damping resistor R_f1/Ω	1
8	load resistance R_O/Ω	100

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表 2 本结构控制参数表

Table 2. Control parameter table of this structure

Num.	controller name	parameter	parameter value
1	capacitor voltage outer loop controller	k_PC	11.5
1	capacitor voltage outer loop controller	k_IC	35
2	inductor current inner loop controller	k_PL	14.15
2	inductor current inner loop controller	k_IL	4
3	ILC controller	k_Ip	0.144
		K_Ii	35
		α	0.55
		k_F	1.12

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表 3 对比结构主电路参数表

Table 3. Main circuit parameter table of comparative structure

Num.	component name	parameter value
1	resonant capacitor C_r/nF	110
2	resonant inductor L_r/μH	14.5
3	resonant inductor L_m/μH	64.4
4	transformer turns ratio	1:2
5	output filter capacitor C_f/nF	40
6	output filter inductor L_f/μH	200
7	load resistance R_O/Ω	100

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表 4 对比结构控制参数表

Table 4. Control parameter table of comparative structure

Num.	controller name	parameter	parameter value
1	PI controller	proportional gain k_p	100
1	PI controller	integral gain k_i	2.5e+3
2	resonant controller	resonant gain k_r	1000
		quality factor Q	200
		resonant frequency w_n	1000

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表 5 两种结构对应的仿真结果

Table 5. Simulation results of two topologies

reference output voltage U_dc-ref/V	steady-state accuracy		ripple coefficient
reference output voltage U_dc-ref/V	this structure	comparative structure	this structure	comparative structure
100	0.11%	0.41%	0.110%	0.47%
300	0.10%	0.37%	0.096%	0.44%

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表 7 实验与仿真结果

Table 7. Experimental and simulation results

output voltage u_dc/V	steady-state accuracy		ripple coefficient
output voltage u_dc/V	experiment	simulation	experiment	simulation
100	0.181%	0.110%	0.20%	0.11%
300	0.157%	0.096%	0.18%	0.10%

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表 6 两种结构所采用的元器件数量

Table 6. Number of components of two topologies

Num.	name	this structure	comparative structure
1	power switch	8	8
2	rectifier diode	4	4
3	inductor	5	4
4	capacitor	5	5
5	transformer	0	1
6	damping resistor	1	0

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