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学者姓名：林国庆
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Abstract ：
High-voltage gain DC-DC converters are widely used in renewable energy systems，and problems such as large input current ripple，high switching tube voltage stress，and low voltage gain are urgently needed to be solved in this type of DC-DC converters. In this paper，a zero-input current ripple scalable high-gain DC-DC converter based on magnetic integration is proposed. The converter combines the magnetic integration technology with the coupled inductor ripple suppression technology，using only one magnetic core element，which can eliminate the input current ripple and obtain high voltage gain，and can form a series of expansion units to further enhance the voltage gain and reduce the voltage stress of the switching devices. In the paper，the operating principle，steady state performance，gain expansion，magnetic integration principle and conditions for realizing the zero input current ripple characteristics of the converter are analyzed in detail. In order to verify the feasibility of the proposed converter theory，a 140 W，24 V/400 V experimental prototype is built，and the experimental results are basically consistent with the theoretical analysis. © 2025 Science Press. All rights reserved.
Keyword ：
Integration Integration
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| GB/T 7714 | Lin, Guoqing , Zeng, Wei , Zhang, Junyuan . ZERO INPUT CURRENT RIPPLE SCALABLE HIGH GAIN DC-DC CONVERTER BASED ON MAGNETIC INTEGRATION [J]. | Acta Energiae Solaris Sinica , 2025 , 46 (1) : 601-608 . |
| MLA | Lin, Guoqing 等. "ZERO INPUT CURRENT RIPPLE SCALABLE HIGH GAIN DC-DC CONVERTER BASED ON MAGNETIC INTEGRATION" . | Acta Energiae Solaris Sinica 46 . 1 (2025) : 601-608 . |
| APA | Lin, Guoqing , Zeng, Wei , Zhang, Junyuan . ZERO INPUT CURRENT RIPPLE SCALABLE HIGH GAIN DC-DC CONVERTER BASED ON MAGNETIC INTEGRATION . | Acta Energiae Solaris Sinica , 2025 , 46 (1) , 601-608 . |
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Abstract ：
为减小传统DC-DC变换器中存在输入电流纹波大、开关管电压应力高和电压增益低等问题,提出一种基于磁集成的零输入电流纹波可扩展高增益DC-DC变换器.该变换器将磁集成技术与耦合电感纹波抑制技术结合,仅采用一个磁芯元件,既可消除输入电流纹波,又可获得高电压增益,并可形成一系列扩展单元,进一步提升电压增益,减小开关器件的电压应力.详细分析变换器的工作原理、稳态性能、增益扩展、磁集成原理和零输入电流纹波特性.为验证所提变换器相关理论的可行性,搭建一台140 W、24 V/400 V的实验样机,实验结果基本与理论分析一致.
Keyword ：
DC-DC变换器 DC-DC变换器 光伏发电 光伏发电 增益调节 增益调节 扩展单元 扩展单元 磁集成 磁集成 零纹波 零纹波
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| GB/T 7714 | 林国庆 , 曾威 , 张俊源 . 一种基于磁集成的零输入电流纹波可扩展高增益DC-DC变换器 [J]. | 太阳能学报 , 2025 , 46 (1) : 601-608 . |
| MLA | 林国庆 等. "一种基于磁集成的零输入电流纹波可扩展高增益DC-DC变换器" . | 太阳能学报 46 . 1 (2025) : 601-608 . |
| APA | 林国庆 , 曾威 , 张俊源 . 一种基于磁集成的零输入电流纹波可扩展高增益DC-DC变换器 . | 太阳能学报 , 2025 , 46 (1) , 601-608 . |
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As the fourth generation lighting source, the Lighting Emitting Diode (LED) has gradually replaced conventional sources of light in various lighting fields due to its excellent qualities in luminous efficiency, Service life, environmental protection, and production cost. Designing an LED driving power supply with a long service life, low device cost, high efficiency, and high reliability is urgent.This paper proposes a two-switch electrolytic capacitor-less LED driving circuit topology, which integrates the auxiliary energy storage circuit into the flyback Converter to suppress low-frequency ripples of the Output current and remove the electrolytic capacitor in the LED driving power supply. This circuit only contains two Switches and two diodes by sharing power Switches and energy storage components, reducing circuit cost and improving the efficiency of the LED driving power supply. The auxiliary energy storage capacitor for balancing the input and Output ripple power difference is isolated from the LED load. Thus, the energy storage capacitance can be reduced by increasing the energy storage capacitor's average voltage or ripple value. The maximum capacitor value used in the entire LED driving power supply is reduced to 6.8uF, and the electrolytic capacitor is replaced by the film capacitor with smaller capacitance and longer life, which improves the service life and reliability of the LED driving power supply. Moreover, the auxiliary circuit without additional structures absorbs the voltage spike caused by the leakage inductance of its energy storage capacitor, reducing the voltage stress of the switch and enabling a wide AC input voltage ränge.A control strategy for ripple suppression and minimum energy storage capacitor voltage is proposed. According to the relationship among the duty cycle of each switch, the auxiliary energy storage capacitor voltage, the Output current, and the changing rules of the working duty cycle are obtained under the conditions that the two switches turn off at the same time when charging the auxiliary energy storage capacitor and turn on at the same time when discharging. The low-frequency ripple of the Output current is suppressed by Controlling the minimum value of the auxiliary energy storage capacitor voltage, and the efficiency of the LED driving power supply is further improved.Based on the working principle of the circuit, the critical parameter design method is given, the selection principles of the energy storage capacitor value are determined, and the corresponding control strategy is proposed. Finally, a 35 W principle prototype is built. The results show that when the auxiliary energy storage capacitor and Output filter capacitor are both 6.8 uE, the Output current ripple of the prototype is less than 10% in the AC input voltage ränge of 90~264 V, the maximum efficiency reaches 87.8%, and the circuit power factors are higher than 0.95. The proposed circuit topology and control strategy achieve electrolytic capacitor-less, Output current ripple suppression, high power factor, and wide AC input voltage ränge, which eliminates the impact of the electrolytic capacitor on the Service life of the LED driving power supply. © 2024 China Machine Press. All rights reserved.
Keyword ：
Acoustic surface wave filters Acoustic surface wave filters Associative storage Associative storage Audio systems Audio systems Bioluminescence Bioluminescence Capacitance Capacitance Capacitor bank Capacitor bank Capacitor storage Capacitor storage Charge storage Charge storage Compact disks Compact disks Cost reduction Cost reduction Cryoelectric storage Cryoelectric storage Depreciation Depreciation Electric filters Electric filters Electrolytic capacitors Electrolytic capacitors Energy efficiency Energy efficiency Failure modes Failure modes Failure rate Failure rate Film capacitor Film capacitor Fluorescence Fluorescence Function generators Function generators Laser beams Laser beams Luminescence of gases Luminescence of gases Luminescence of solids Luminescence of solids Luminescent devices Luminescent devices Microelectrodes Microelectrodes Phonographs Phonographs Phosphorescence Phosphorescence Photoluminescence Photoluminescence Photomasks Photomasks Photoresistors Photoresistors Posistors Posistors Public address systems Public address systems System-in-package System-in-package Thermoluminescence Thermoluminescence Time switches Time switches Triboluminescence Triboluminescence Welding electrodes Welding electrodes
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| GB/T 7714 | Lin, Guoqing , Huang, Yuanbin . Two-Switch Electrolytic Capacitor-Less LED Driving Circuit Topology and Control Strategy [J]. | Transactions of China Electrotechnical Society , 2024 , 39 (18) : 5742-5754 . |
| MLA | Lin, Guoqing 等. "Two-Switch Electrolytic Capacitor-Less LED Driving Circuit Topology and Control Strategy" . | Transactions of China Electrotechnical Society 39 . 18 (2024) : 5742-5754 . |
| APA | Lin, Guoqing , Huang, Yuanbin . Two-Switch Electrolytic Capacitor-Less LED Driving Circuit Topology and Control Strategy . | Transactions of China Electrotechnical Society , 2024 , 39 (18) , 5742-5754 . |
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Abstract ：
LED驱动电源通常需要大电解电容来减少低频电流纹波,电解电容的短寿命是制约LED驱动电源寿命的重要因素,消除电解电容是LED驱动电源长寿命的关键.为此,提出了一种基于反激变换器的两开关无电解电容LED驱动电路拓扑,将辅助功率平衡电路与反激变换器集成,通过2个开关管实现瞬时输入功率与输出功率的平衡,消除电解电容,抑制输出电流低频纹波,实现高功率因数.详细分析了该拓扑的工作原理,并提出了一种适用于该电路拓扑的控制策略.最后搭建了1 台30 W的原理样机,实验结果验证了该拓扑的可行性.
Keyword ：
LED驱动电路 LED驱动电路 低频纹波抑制 低频纹波抑制 功率因数校正 功率因数校正 无电解电容 无电解电容
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| GB/T 7714 | 张经纬 , 林国庆 . 一种新型两开关无电解电容LED驱动电路 [J]. | 电源学报 , 2024 , 22 (4) : 260-269 . |
| MLA | 张经纬 等. "一种新型两开关无电解电容LED驱动电路" . | 电源学报 22 . 4 (2024) : 260-269 . |
| APA | 张经纬 , 林国庆 . 一种新型两开关无电解电容LED驱动电路 . | 电源学报 , 2024 , 22 (4) , 260-269 . |
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Abstract ：
针对光伏燃料电池等新能源联合供电系统,提出1种非隔离型双输入高增益直流变换器.该变换器基于双输入Boost电路,两输入源与输出以及各开关管均共地.在后级引入二极管电容网络以实现高电压增益,并降低开关器件电压应力.该变换器在不额外增加开关管的情况下不仅能实现两输入源同时供电,还能实现其中任意一路输入源单独供电.此外,还可以通过拓展增压单元进一步提高电压增益以适应不同应用场合.详细分析了变换器及其拓展电路在3种供电模式下的工作原理、电压增益特性、开关器件电压应力等,并与现有同类变换器进行了性能对比.最后,搭建实验样机验证了其可行性.
Keyword ：
DC-DC变换器 DC-DC变换器 双输入 双输入 新能源发电 新能源发电 高增益 高增益
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| GB/T 7714 | 黄毅敏 , 林国庆 , 林思圻 . 一种可拓展的双输入高增益DC-DC变换器 [J]. | 电源学报 , 2024 , 22 (5) : 109-119 . |
| MLA | 黄毅敏 等. "一种可拓展的双输入高增益DC-DC变换器" . | 电源学报 22 . 5 (2024) : 109-119 . |
| APA | 黄毅敏 , 林国庆 , 林思圻 . 一种可拓展的双输入高增益DC-DC变换器 . | 电源学报 , 2024 , 22 (5) , 109-119 . |
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Abstract ：
LED驱动电源常因含有平衡输入输出功率的电解电容而导致寿命大打折扣,为延长LED驱动电源的使用寿命以及提高其可靠性,该文提出一种两开关无电解电容LED驱动电路拓扑,该拓扑以反激变换器为基础,通过集成的辅助储能电容实现输入输出瞬时功率平衡,从而大大地减小了抑制输出电流低频纹波所需的电容器容值,实现无电解电容化,并充分吸收漏感能量,使电源效率得到提高.详细分析该电路拓扑的工作原理及各个模态,给出参数设计方法,并提出相应控制策略,最后,搭建一台35 W原理样机验证了该电路拓扑的可行性.
Keyword ：
LED驱动电路 LED驱动电路 低频纹波抑制 低频纹波抑制 无电解电容 无电解电容 漏感吸收 漏感吸收
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| GB/T 7714 | 林国庆 , 黄远彬 . 两开关无电解电容LED驱动电路拓扑及控制策略 [J]. | 电工技术学报 , 2024 , 39 (18) : 5742-5754 . |
| MLA | 林国庆 等. "两开关无电解电容LED驱动电路拓扑及控制策略" . | 电工技术学报 39 . 18 (2024) : 5742-5754 . |
| APA | 林国庆 , 黄远彬 . 两开关无电解电容LED驱动电路拓扑及控制策略 . | 电工技术学报 , 2024 , 39 (18) , 5742-5754 . |
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Abstract ：
电解电容因其易老化的特性,成为制约LED驱动电源可靠性的重要因素.为去除电解电容,提高LED驱动电源的使用寿命,提出一种将传统反激变换器与"并充并放"型辅助功率解耦回路集成的无电解电容LED驱动电路拓扑,利用辅助功率解耦回路对输出电流进行"削峰填谷",抑制了输出电流的低频纹波;通过增加辅助储能电容电压脉动值,降低电路所需的电容容值,实现无电解电容化.同时引入载波层叠调制,将功率解耦模态判断、输出电流恒流控制和输出电流纹波抑制三大功能结合于电流环中,简化了控制模块.最后,试制了一台35 W的样机,实验测试结果表明,在不使用电解电容的情况下,样机实现输出电流恒流,同时输出电流纹波得到有效抑制,验证了拓扑与控制的可行性.
Keyword ：
LED驱动 LED驱动 功率解耦 功率解耦 反激变换器 反激变换器 无电解电容 无电解电容 载波叠层 载波叠层 高功率因数 高功率因数
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| GB/T 7714 | 吴伟鑫 , 林国庆 . 一种隔离型高功率因数无电解电容LED驱动电源 [J]. | 电机与控制学报 , 2024 , 28 (12) : 97-105 . |
| MLA | 吴伟鑫 等. "一种隔离型高功率因数无电解电容LED驱动电源" . | 电机与控制学报 28 . 12 (2024) : 97-105 . |
| APA | 吴伟鑫 , 林国庆 . 一种隔离型高功率因数无电解电容LED驱动电源 . | 电机与控制学报 , 2024 , 28 (12) , 97-105 . |
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鉴于光伏发电等新能源可再生系统中输出电压过低、受环境影响大等问题,提出一种新型的高增益三端口直流变换器及控制策略.该变换器拓扑的3个端口分别连接光伏发电端、储能端和负载端,具有开关器件应力低、各输入源功率可灵活分配、耦合电感漏感能量可被循环利用等优点.详细分析了该拓扑在各工作模式下的原理和稳态特性,并与现有同类变换器的工作特性进行对比.根据光储供电系统的控制要求和变换器在不同工况下的功率流动情况,研究相应的模式运行与切换控制策略.搭建一台300 W的样机进行测试,实验结果验证了所提方案的可行性.
Keyword ：
光伏发电 光伏发电 多输入 多输入 模式切换 模式切换 直流变换器 直流变换器 能量管理 能量管理 高增益 高增益
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| GB/T 7714 | 林国庆 , 张俊源 , 曾威 . 高增益三端口直流变换器拓扑及控制策略研究 [J]. | 太阳能学报 , 2024 , 45 (12) : 57-66 . |
| MLA | 林国庆 等. "高增益三端口直流变换器拓扑及控制策略研究" . | 太阳能学报 45 . 12 (2024) : 57-66 . |
| APA | 林国庆 , 张俊源 , 曾威 . 高增益三端口直流变换器拓扑及控制策略研究 . | 太阳能学报 , 2024 , 45 (12) , 57-66 . |
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针对光伏储能联合供电系统输出电压低、供电可靠性差等问题,提出了一种具备多种工作模式的非隔离型高增益三端口DC-DC变换器.变换器的3个端口共地,分别连接光伏发电单元、储能单元和负载,通过改进二次型结构提升电压增益,并降低开关器件应力.变换器具有5种工作模式,可满足离网光储发电系统的各种工况需求.此外,变换器对光伏端口和储能端口之间没有电压约束,能够适应更多的应用场合.详细分析了变换器在各工作模式下的工作原理和稳态特性,并与现有同类变换器进行了工作特性对比.根据光伏储能联合供电系统的控制要求和变换器在不同工况下的功率流动情况,研究了相应的模式运行与切换控制策略.最后,搭建了一台300 W的实验样机进行验证.
Keyword ：
三端口变换器 三端口变换器 光伏发电 光伏发电 模式切换 模式切换 能量管理 能量管理 非隔离 非隔离 高增益 高增益
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| GB/T 7714 | 林国庆 , 黄毅敏 . 一种非隔离型高增益三端口DC-DC变换器 [J]. | 电机与控制学报 , 2023 , 27 (2) : 98-111 . |
| MLA | 林国庆 等. "一种非隔离型高增益三端口DC-DC变换器" . | 电机与控制学报 27 . 2 (2023) : 98-111 . |
| APA | 林国庆 , 黄毅敏 . 一种非隔离型高增益三端口DC-DC变换器 . | 电机与控制学报 , 2023 , 27 (2) , 98-111 . |
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针对电解电容影响LED驱动电源寿命和可靠性问题,提出一种单级非隔离型无电解电容LED驱动电路,该拓扑是在反激变换器基础上增加一个辅助功率平衡电路,通过控制辅助储能电容的充放电实现了输入瞬时功率和输出功率之间的平衡,从而降低了输出电流的低频纹波,并且漏感能量也可以得到有效利用。详细分析了该拓扑结构的工作原理及开关模态,针对所提电路拓扑给出了电路关键参数设计,并提出了一种适用于该电路拓扑的控制策略。最后搭建了一台30 W原理样机,实验结果表明,所提的电路方案可以将输出电流的纹波抑制至20%以下,辅助储能电容和输出滤波电容可分别降至6.6μF和8.8μF,从而使用寿命更长的薄膜电容去代替电解电容,提...
Keyword ：
LED驱动电路 LED驱动电路 控制策略 控制策略 漏感能量 漏感能量 电解电容 电解电容 辅助功率平衡电路 辅助功率平衡电路 输出电流低频纹波 输出电流低频纹波
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| GB/T 7714 | 林国庆 , 占盆朋 , 陈伟 . 一种单级非隔离型无电解电容LED驱动电路 [J]. | 电机与控制学报 , 2022 , 26 (02) : 82-93 . |
| MLA | 林国庆 等. "一种单级非隔离型无电解电容LED驱动电路" . | 电机与控制学报 26 . 02 (2022) : 82-93 . |
| APA | 林国庆 , 占盆朋 , 陈伟 . 一种单级非隔离型无电解电容LED驱动电路 . | 电机与控制学报 , 2022 , 26 (02) , 82-93 . |
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