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学者姓名：林维明
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Abstract ：
面对独立光伏发电系统的小卫星间可见光通信应用,提出一种谐振三端口 LED驱动电路,实现软开关高效光伏电能变换,对所提出驱动电路稳态特性和关键参数进行具体分析设计.结合驱动电路,提出一种融合电能变换与可见光通信的可变脉冲位置调制(VPPM)调制控制策略,利用输出脉冲电流的位置实现数据传输,通过调节输出脉冲电流宽度完成通信所需亮度调节,适用于较远距离可见光通信调制,同时实现照明恒流控制.详细分析融合控制原理和控制过程,最后进行计算机仿真验证,并设计制作一台所提出驱动电路与融合控制策略的额定输出0.6 A/20 W实验样机,样机效率最高可达95.6％,通信原理样机数据传输速率为10～20 kbps,验证了所提出的驱动电路和融合控制策略的有效性.
Keyword ：
LED照明 LED照明 VPPM调制 VPPM调制 三端口谐振驱动电路 三端口谐振驱动电路 可见光通信 可见光通信 多输入多输出 多输入多输出 融合控制策略 融合控制策略
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| GB/T 7714 | 郑勇 , 林维明 , 林中寅 et al. 一种融合电能变换与可见光通信VPPM调制的控制策略 [J]. | 电机与控制学报 , 2024 , 28 (10) : 177-192 . |
| MLA | 郑勇 et al. "一种融合电能变换与可见光通信VPPM调制的控制策略" . | 电机与控制学报 28 . 10 (2024) : 177-192 . |
| APA | 郑勇 , 林维明 , 林中寅 , 黄舒晨 . 一种融合电能变换与可见光通信VPPM调制的控制策略 . | 电机与控制学报 , 2024 , 28 (10) , 177-192 . |
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Because of the existence of many power devices, complex control circuits, low efficiency, high cost and poor reliability, etc. in the traditional two-stage LED driver, a single-stage bridgeless Sepic resonant LED driver was proposed, which is integrated by multiplexing the switching tube of the single-switch bridgeless Sepic circuit and the lower switching tube of the half-bridge LLC circuit. The operating principle and the operating process of the proposed circuit were analyzed. The steady-state characteristics of the proposed driver, such as voltage variable ratio, the line characteristics and soft-switching characteristics were analyzed in detail; then the proposed circuit’s key parameters were designed in detail. And a hybrid APWM-PFM control strategy was designed for single-stage circuits with a wide range of DC bus voltage variations caused by the change of input voltage. Finally, the computer simulation was carried out and an AC input 185 - 265 Vrms, rated output 2 A / 96 W experimental prototype was set up. The efficiency of the prototype is obtained to be up to 91. 5%, the maximum value of PF is obtained to be up to 0. 995, and the minimum value of THD is obtained to be down to 5. 5%, under the case of 265 Vrms AC input, the bus voltage can be controlled and the overall variation range to be within 60 V under different AC input voltages. The results of the computer simulation and the experiment have been obtained to verify the theoretical expectations and the validity of the proposed circuits and the hybrid control strategy. © 2024 Editorial Department of Electric Machines and Control. All rights reserved.
Keyword ：
Computer workstations Computer workstations Energy conversion Energy conversion Organic light emitting diodes (OLED) Organic light emitting diodes (OLED) Pulse amplitude modulation Pulse amplitude modulation Pulse width modulation Pulse width modulation System-on-chip System-on-chip Thyratrons Thyratrons Zero voltage switching Zero voltage switching
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| GB/T 7714 | Lin, Zhongyin , Lin, Weiming , Huang, Shuchen et al. Single-stage bridgeless Sepic resonant LED driver and its APWM-PFM hybrid control strategy [J]. | Electric Machines and Control , 2024 , 28 (9) : 106-124 . |
| MLA | Lin, Zhongyin et al. "Single-stage bridgeless Sepic resonant LED driver and its APWM-PFM hybrid control strategy" . | Electric Machines and Control 28 . 9 (2024) : 106-124 . |
| APA | Lin, Zhongyin , Lin, Weiming , Huang, Shuchen , Zheng, Yong . Single-stage bridgeless Sepic resonant LED driver and its APWM-PFM hybrid control strategy . | Electric Machines and Control , 2024 , 28 (9) , 106-124 . |
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Abstract ：
针对传统两级式LED驱动电源中存在着半导体功率器件数目多,控制电路复杂,效率低,成本高,可靠性差等问题,提出一种单级无桥Sepic谐振LED驱动电路,通过将单开关无桥Sepic电路主开关管与半桥LLC电路下开关管复用集成单级LED驱动电路,减少了半导体功率器件数目,简化控制电路,提高了电路效率和工作可靠性.详细分析了所提出电路的工作原理和工作过程,深入开展了电路输入输出电压变比、网侧特性、软开关特性等稳态特性推导和电路关键参数设计,并针对所提出单级电路由于输入电压变化引起直流母线电压变动范围大等问题,分析设计了一种APWM-PFM混合控制策略.最后进行计算机仿真分析,并设计一台交流输入185～265 Vrms、额定输出2A/96W的实验样机,样机效率最高可达91.5%,PF最大值为0.995,THD最小为5.5%,不同交流电压下直流母线电压总体变化范围在60V以内,实现直流母线电压限压.计算机仿真结果和实验结果验证所提出电路和混合控制策略的理论预期和有效性.
Keyword ：
LED照明 LED照明 功率因数校正 功率因数校正 单级无桥Sepic/LLC电路 单级无桥Sepic/LLC电路 直流母线电压APWM-PFM混合控制 直流母线电压APWM-PFM混合控制 软开关 软开关
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| GB/T 7714 | 林中寅 , 林维明 , 黄舒晨 et al. 单级无桥Sepic谐振LED驱动电路及其APWM-PFM混合控制 [J]. | 电机与控制学报 , 2024 , 28 (9) : 106-124 . |
| MLA | 林中寅 et al. "单级无桥Sepic谐振LED驱动电路及其APWM-PFM混合控制" . | 电机与控制学报 28 . 9 (2024) : 106-124 . |
| APA | 林中寅 , 林维明 , 黄舒晨 , 郑勇 . 单级无桥Sepic谐振LED驱动电路及其APWM-PFM混合控制 . | 电机与控制学报 , 2024 , 28 (9) , 106-124 . |
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为了解决恒定导通时间(COT)控制策略下负向谐振电流和输入滤波电容引起功率因数(PF)和总谐波失真(THD)性能变差的问题，提出一种改进变导通时间(VOT)的控制策略。通过自适应增加导通时间以抵消负向谐振电流，减小相位差，使电感平均电流在工频周期内接近正弦波，并分析其工作原理与控制过程。结合主电路设计关键参数，研制1台额定功率320 W的样机，进行COT控制策略和改进VOT控制策略的对比实验。计算机仿真和实验结果表明，改进VOT控制策略在265 V高电压输入20%负载工作时，PF值由0.726提升至0.801,THD由27.92%降低至18.4%;在40%～100%负载时满足PF>0.9、THD<15%的要求，验证所提控制策略的有效性。
Keyword ：
临界导通模式 临界导通模式 功率因数校正 功率因数校正 改进变导通时间控制 改进变导通时间控制 网侧特性 网侧特性
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| GB/T 7714 | 关震 , 林维明 . 一种Boost PFC电路改进VOT控制策略研究 [J]. | 电器与能效管理技术 , 2024 , 8 (04) : 22-29 . |
| MLA | 关震 et al. "一种Boost PFC电路改进VOT控制策略研究" . | 电器与能效管理技术 8 . 04 (2024) : 22-29 . |
| APA | 关震 , 林维明 . 一种Boost PFC电路改进VOT控制策略研究 . | 电器与能效管理技术 , 2024 , 8 (04) , 22-29 . |
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Abstract ：
面向光伏发电等新能源发电和电网供电等多能源联合供电的发光二极管(LED)照明应用场合,为进一步减小电路器件应力和开关损耗,提出一种有源箝位抑制漏感电压尖峰缓冲的多端口双向LED照明驱动电路,实现网侧供电与光伏发电等多能源供电以适应多种照明场景.详细分析所提电路的工作原理和工作过程,以及所提电路在各种工作模式下的稳态工作特性,设计电路关键参数和进行计算机仿真分析,研制1台交流电网输入电压范围为AC 185～265 V、输出电流为2 A、输出功率为96 W的电路实验样机.所提电路在交流电网供电工作模式下,功率因数可达0.998,总谐波失真最小为4.7％,电源效率满载时最高达87.2％.计算机仿真结果与实验结果验证了所提电路有源箝位方法的有效性.
Keyword ：
LED照明 LED照明 功率因数校正 功率因数校正 双向无桥反激电路 双向无桥反激电路 应力 应力 有源箝位 有源箝位
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| GB/T 7714 | 黄舒晨 , 林维明 , 郑勇 et al. 一种双向无桥有源箝位反激三端口LED驱动电路 [J]. | 电器与能效管理技术 , 2024 , (9) : 38-50 . |
| MLA | 黄舒晨 et al. "一种双向无桥有源箝位反激三端口LED驱动电路" . | 电器与能效管理技术 9 (2024) : 38-50 . |
| APA | 黄舒晨 , 林维明 , 郑勇 , 林中寅 . 一种双向无桥有源箝位反激三端口LED驱动电路 . | 电器与能效管理技术 , 2024 , (9) , 38-50 . |
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Abstract ：
临界导通模式Boost功率因素校正(PFC)电路通常采用恒定导通时间(COT)控制策略，导致开关频率的变化与输入电压、输出功率以及电感有关，轻载下过高的开关频率将影响电路的转换效率，故提出一种谷底计数频率反走(VCFF)控制策略。通过检测MOS管两端电压谷底计数，使电路轻载时工作在断续模式，从而降低开关频率以提升轻载效率。实验结果表明，相比于COT控制策略，所提控制策略能够有效提高轻载效率。输入电压为220 Vrms下，10%～50%负载时效率在0.96以上。
Keyword ：
Boost功率因素校正电路 Boost功率因素校正电路 LED驱动电源 LED驱动电源 临界导通模式 临界导通模式 轻载效率 轻载效率
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| GB/T 7714 | 刘光清 , 林维明 . 一种BCM Boost PFC电路的VCFF控制策略 [J]. | 电器与能效管理技术 , 2024 , 9 (03) : 7-14,29 . |
| MLA | 刘光清 et al. "一种BCM Boost PFC电路的VCFF控制策略" . | 电器与能效管理技术 9 . 03 (2024) : 7-14,29 . |
| APA | 刘光清 , 林维明 . 一种BCM Boost PFC电路的VCFF控制策略 . | 电器与能效管理技术 , 2024 , 9 (03) , 7-14,29 . |
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In the application of the visible light communication between small satellites for independent photovoltaic power generation system, a resonant three-port LED driver was proposed. The steady state characteristics of the proposed driver and the key parameter were theoretically derived and analyzed. Combined with the proposed driver, a control strategy incorporating variable pulse position modulation (VPPM) of visible light communication modulation with power conversion LED driver was proposed, which the position of the output pulse current was utilized to realize data transmission, and the brightness adjustment required for communication was completed by adjusting the width of the output pulse current, which is used to be suitable for longer distance VLC modulation, and the output average current for lighting can be controlled to be constant. The control principle and control process were analyzed in detail. The computer simulation was carried out. An experimental prototype of the proposed driver and its hybrid control strategy with a rated output of 0. 6 A / 20 W was designed and set up, with an efficiency of up to 95. 6%, and a data transmission rate of 10 kbps-20 kbps. The simulation and experimental results have been obtained to verify the proposed resonant three-port LED driver and its hybrid control strategy. © 2024 Editorial Department of Electric Machines and Control. All rights reserved.
Keyword ：
Chirp modulation Chirp modulation Communication satellites Communication satellites Data communication systems Data communication systems Laser beams Laser beams Light modulation Light modulation Light transmission Light transmission Pulse position modulation Pulse position modulation Satellite communication systems Satellite communication systems Small satellites Small satellites
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| GB/T 7714 | Zheng, Yong , Lin, Weiming , Lin, Zhongyin et al. Control strategy combined power conversion with VPPM modulation of visible light communication [J]. | Electric Machines and Control , 2024 , 28 (10) : 177-192 . |
| MLA | Zheng, Yong et al. "Control strategy combined power conversion with VPPM modulation of visible light communication" . | Electric Machines and Control 28 . 10 (2024) : 177-192 . |
| APA | Zheng, Yong , Lin, Weiming , Lin, Zhongyin , Huang, Shuchen . Control strategy combined power conversion with VPPM modulation of visible light communication . | Electric Machines and Control , 2024 , 28 (10) , 177-192 . |
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The traditional two-stage LED driver is usually used in the small and medium power LED drivers, resulting in some problems such as large in size and high in cost, and a large conduction loss at low voltage input, etc. To solve the above problems, a bridgeless high gain single-stage LED driver integrated by a bridgeless quadratic Boost PFC circuit and DC-DC LLC circuit was proposed, in which high voltage gain and soft switching can be realized, a set of control circuit is needed and the circuit efficiency can be improved. Aiming at the problem that the DC bus voltage variation range of the proposed single-stage circuit needs to be regulated, the APWM-PFM hybrid control strategy suitable for the proposed circuit was proposed and analyzed and the hybrid control principle and the control process were analyzed in detail. Finally, computer simulation was carried out and a 200 W experimental prototype was built up. In the range of input voltage 80 - 120 Vrms, when the duty cycle is 0. 5, the maximum voltage gain is obtained to be 6. 7, the power factor value of the prototype can be achieved to be higher than 0. 990 in all line voltage ranges, the THD can be reduced to be lower than 15% and the DC bus voltage is regulated to be under 700 V to equilibrate the line characteristics and LLC performance. Under full load condition, the prototype efficiency can reach up to 93. 20% when the input voltage is 110 Vrms. Compared with the traditional two-stage converter, the voltage gain is increased by 2. 21 times, high voltage gain and soft switching are achieved, the efficiency under low-voltage input condition is effectively improved. The proposed circuit and control method have been proved to be effective by the simulation and experimental results. © 2024 Editorial Department of Electric Machines and Control. All rights reserved.
Keyword ：
Boost converter Boost converter Efficiency Efficiency Electric loads Electric loads Electric network analysis Electric network analysis Electric power factor correction Electric power factor correction Gain measurement Gain measurement Light emitting diodes Light emitting diodes Timing circuits Timing circuits
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| GB/T 7714 | Liu, Guangqing , Lin, Weiming , Chen, Xinwei . Bridgeless high gain single-stage LED driver and its hybrid control strategy [J]. | Electric Machines and Control , 2024 , 28 (1) : 105-119 . |
| MLA | Liu, Guangqing et al. "Bridgeless high gain single-stage LED driver and its hybrid control strategy" . | Electric Machines and Control 28 . 1 (2024) : 105-119 . |
| APA | Liu, Guangqing , Lin, Weiming , Chen, Xinwei . Bridgeless high gain single-stage LED driver and its hybrid control strategy . | Electric Machines and Control , 2024 , 28 (1) , 105-119 . |
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Abstract ：
中小功率的LED驱动电源中，传统两级LED驱动电源存在体积大、成本高以及传统Boost PFC电路在低压输入时导通损耗大等问题。为此提出一种由无桥二次型Boost PFC电路和DC-DC LLC电路集成的无桥高增益单级LED驱动电路，实现了高电压增益、功率开关器件软开关、一套控制电路和高电路转换效率。针对单级电路在电网输入电压变化引起直流母线电压变动范围大等问题，设计一种适用于所提电路的APWM-PFM混合控制策略，并对混合控制原理和控制过程进行详细分析。最后设计一台200 W的实验样机，在输入电压80～120 Vrms范围内，占空比最大为0.5,最大电压增益为6.7,直流母线电压基于网侧特性和LLC电路特性设计在700 V以内，样机的功率因数值均高于0.990,THD均低于15%。在满载条件下，110 Vrms输入时，样机效率为93.20%,相比于传统无桥PFC,电压增益提高了2.21倍，实现了高电压增益和软开关，有效提升了在低压输入条件下的电路转换效率。仿真和实验结果验证了所提出电路和控制方法的有效性。
Keyword ：
LED驱动电路 LED驱动电路 功率因数校正 功率因数校正 混合控制策略 混合控制策略 软开关 软开关 高增益Boost与LLC电路集成 高增益Boost与LLC电路集成
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| GB/T 7714 | 刘光清 , 林维明 , 陈欣玮 . 一种无桥高增益单级LED驱动电路及其混合控制策略 [J]. | 电机与控制学报 , 2024 , 28 (01) : 105-119 . |
| MLA | 刘光清 et al. "一种无桥高增益单级LED驱动电路及其混合控制策略" . | 电机与控制学报 28 . 01 (2024) : 105-119 . |
| APA | 刘光清 , 林维明 , 陈欣玮 . 一种无桥高增益单级LED驱动电路及其混合控制策略 . | 电机与控制学报 , 2024 , 28 (01) , 105-119 . |
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With the consumption of fossil fuels, new energy is increasingly being applied, with wind and solar energy being typical representatives. Due to its simple structure, multi input DC converters have become an increasingly important part of multi energy joint power supply systems, replacing multiple single input DC converters. Therefore, this paper proposes a dual input Cuk converter, and provides a detailed analysis of its working principle and performance characteristics. Finally, it is verified through computer simulation. The results indicate that the circuit can achieve collaborative power supply between two power sources, ensuring stable output voltage and improving system stability and flexibility. © 2024 IEEE.
Keyword ：
Cuk converter Cuk converter DC distribution systems DC distribution systems Power supply circuits Power supply circuits
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| GB/T 7714 | Chen, Hongxing , Fang, Yuncheng , Lin, Weiming et al. A Dual Input DC-DC Circuit Applied to New Energy Power Supply Systems [C] . 2024 : 335-338 . |
| MLA | Chen, Hongxing et al. "A Dual Input DC-DC Circuit Applied to New Energy Power Supply Systems" . (2024) : 335-338 . |
| APA | Chen, Hongxing , Fang, Yuncheng , Lin, Weiming , Zhuang, Shengbin . A Dual Input DC-DC Circuit Applied to New Energy Power Supply Systems . (2024) : 335-338 . |
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