Hybrid mode-hopping modulation for LLC resonant converter achieving high efficiency and linear behaviour

被引:10
作者
Fang, Zhijian [1 ,2 ]
Huang, Zhicong [3 ,4 ]
Jing, Hang [5 ]
Liu, Fei [5 ]
机构
[1] China Univ Geosci, Sch Automat, Wuhan, Peoples R China
[2] Hubei Key Lab Adv Control & Intelligent Automat C, Wuhan, Peoples R China
[3] Univ Macau, State Key Lab Analog & Mixed Signal VLSI, Macau, Peoples R China
[4] South China Univ Technol, Shien Ming Wu Sch Intelligent Engn, Guangzhou, Guangdong, Peoples R China
[5] Wuhan Univ, Sch Elect Engn, Wuhan, Peoples R China
基金
中国国家自然科学基金;
关键词
zero current switching; frequency modulation; zero voltage switching; switching convertors; resonant power convertors; control system synthesis; single modulation period; mode-hopping time; nonlinear converter behaviour; hybrid mode-hopping modulation method; power-efficient operating modes; LLC resonant converter; linear behaviour; inductor-inductor-capacitor resonant converter; soft switching features; light load conditions; complex control; mode-hopping modulations; switching frequencies; duty cycle; control design; conventional FM method; linear output power; current; 8; 0; A; voltage; 12; V; OPTIMAL TRAJECTORY CONTROL; BATTERY CHARGER; OPTIMIZATION; DESIGN; PWM;
D O I
10.1049/iet-pel.2019.1029
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Frequency modulation (FM) has been widely used in the inductor-inductor-capacitor (LLC) resonant converter due to excellent soft switching features. However, low power efficiency in light load conditions and complex control due to the nonlinear converter behaviour are common concerns for the FM method. In this study, a hybrid mode-hopping modulation method is proposed for the LLC resonant converter to address these challenges. The LLC resonant converter operates at any two of three power-efficient operating modes for a different amount of time within a single modulation period. By determining the mode hopping time and combining different mode-hopping modulations, the LLC resonant converter can achieve a wide range of output power and maintain high efficiency at the same time. Besides, since the switching frequencies are fixed, the relationships between the duty cycle and the output power are linear, which can significantly simplify the control design. Compared with the existing modulation methods, the proposed hybrid mode-hopping modulation makes the LLC resonant converter behaves linear, simplifies the control design, achieves wide operation range and ensures high efficiency even in light load condition.
引用
收藏
页码:1153 / 1162
页数:10
相关论文
共 36 条
[21]   Small-Signal Models With Extended Frequency Range for DC-DC Converters With Large Modulation Ripple Amplitude [J].
Li, Xin ;
Ruan, Xinbo ;
Jin, Qian ;
Sha, Mengke ;
Tse, Chi K. .
IEEE TRANSACTIONS ON POWER ELECTRONICS, 2018, 33 (09) :8151-8163
[22]   A Modified Gain Model and the Corresponding Design Method for an LLC Resonant Converter [J].
Liu, Jianqiang ;
Zhang, Jiepin ;
Zheng, Trillion Q. ;
Yang, Jingxi .
IEEE TRANSACTIONS ON POWER ELECTRONICS, 2017, 32 (09) :6716-6727
[23]  
Ma H, 2012, IEEE IND ELEC, P162, DOI 10.1109/IECON.2012.6388814
[24]   Three-Phase LLC Series Resonant DC/DC Converter Using SiC MOSFETs to Realize High-Voltage and High-Frequency Operation [J].
Nakakohara, Yusuke ;
Otake, Hirotaka ;
Evans, Tristan M. ;
Yoshida, Tomohiko ;
Tsuruya, Mamoru ;
Nakahara, Ken .
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 2016, 63 (04) :2103-2110
[25]   PWM and PFM Hybrid Control Method for LLC Resonant Converters in High Switching Frequency Operation [J].
Park, Hwa-Pyeong ;
Jung, Jee-Hoon .
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 2017, 64 (01) :253-263
[26]   Disturbance Observer-Based Control of a Dual-Output LLC Converter for Solid-State Lighting Applications [J].
Roes, Maurice G. L. ;
Duarte, Jorge L. ;
Hendrix, Marcel A. M. .
IEEE TRANSACTIONS ON POWER ELECTRONICS, 2011, 26 (07) :2018-2027
[27]   Burst Mode Elimination in High-Power LLC Resonant Battery Charger for Electric Vehicles [J].
Shafiei, Navid ;
Ordonez, Martin ;
Craciun, Marian ;
Botting, Chris ;
Edington, Murray .
IEEE TRANSACTIONS ON POWER ELECTRONICS, 2016, 31 (02) :1173-1188
[28]   A Frequency Adaptive Phase Shift Modulation Control Based LLC Series Resonant Converter for Wide Input Voltage Applications [J].
Shakib, S. M. Showybul Islam ;
Mekhilef, Saad .
IEEE TRANSACTIONS ON POWER ELECTRONICS, 2017, 32 (11) :8360-8370
[29]   Improving the Light-Load Regulation Capability of LLC Series Resonant Converter Using Impedance Analysis [J].
Yeon, Cheol-O ;
Kim, Jong-Woo ;
Park, Moo-Hyun ;
Lee, Il-Oun ;
Moon, Gun-Woo .
IEEE TRANSACTIONS ON POWER ELECTRONICS, 2017, 32 (09) :7056-7067
[30]   Review of Battery Charger Topologies, Charging Power Levels, and Infrastructure for Plug-In Electric and Hybrid Vehicles [J].
Yilmaz, Murat ;
Krein, Philip T. .
IEEE TRANSACTIONS ON POWER ELECTRONICS, 2013, 28 (05) :2151-2169