Feng Zhijian, Zhao Shuzhe, Sun Zixiang, et al. HYBRID THREE-LEVEL ACTIVE NEUTRAL POINT CLAMPED INVERTER WITH BOTH EFFICIENCY AND TEMPERATURE DISTRIBUTION[J]. 2025, 46(3): 373-383.
Feng Zhijian, Zhao Shuzhe, Sun Zixiang, et al. HYBRID THREE-LEVEL ACTIVE NEUTRAL POINT CLAMPED INVERTER WITH BOTH EFFICIENCY AND TEMPERATURE DISTRIBUTION[J]. 2025, 46(3): 373-383. DOI: 10.19912/j.0254-0096.tynxb.2023-1869.
HYBRID THREE-LEVEL ACTIVE NEUTRAL POINT CLAMPED INVERTER WITH BOTH EFFICIENCY AND TEMPERATURE DISTRIBUTION
摘要
针对三电平有源中点钳位型(3L-ANPC)逆变器存在调制复杂、难以同时兼顾高效率和散热均衡等问题
提出一种新型Si-SiC混合型3L-ANPC逆变器电路拓扑及调制策略。当输出电压被钳位至中性点时
采用上下桥臂双支路同时导通的续流方式
有效降低通态损耗;此外
引入过渡零状态调整驱动时序
使得硬开关损耗集中于两个SiC金属氧化物半导体场效应晶体管(MOSFET)以降低开关损耗
同时均衡各开关管的温度。首先介绍Si-SiC混合型3L-ANPC逆变器的工作原理
然后建立其损耗模型和热模型并进行理论分析
最后搭建单相有源中点钳位型(ANPC)实验平台进行实验验证。仿真与实验结果表明
相较于传统基于Si器件的方案
所提方案的效率提高约2.8%
开关管最高结温降低3.6 ℃。
Abstract
Three-level active-neutral point-clamped (3L-ANPC) inverters have been widely used in medium and high power photovoltaic systems
but at present
3L-ANPC inverters still suffer from the problems of complex modulation
difficulty in simultaneous high-efficiency and heat dissipation equalization. Therefore
this paper proposed a novel Si-SiC hybrid 3L-ANPC inverter circuit topology and modulation strategy. When the output voltage is clamped to the neutral point
the dual-branch continuity method of simultaneous conduction of the upper and lower bridge arms is adopted to effectively reduce the conduction loss
in addition
the introduction of the transition zero state adjusts the drive timing
so that the hard switching losses are concentrated in the two SiC MOSFETs to reduce switching losses and equalize the temperature of each switching tube at the same time. In this paper
the working principle of the proposed Si-SiC hybrid 3L-ANPC inverter is firstly introduced
then its loss model and thermal model are established and theoretically analyzed
and finally a single-phase ANPC experimental platform is built for experimental verification. The experimental results show that compared with the conventional scheme based on Si IGBT
the scheme in this paper has about 2.8% higher efficiency and 3.6 °C lower switching tube temperature.
周林, 李寒江, 解宝, 等. SiC MOSFET的Saber建模及其在光伏并网逆变器中的应用和分析[J]. 电工技术学报, 2019, 34(20): 4251-4263.
JI S Q, ZHANG Z Y, WANG F.Overview of high voltage SiC power semiconductor devices: development and application[J]. CES transactions on electrical machines and systems, 2017, 1(3): 254-264.
XIA T L, WANG Q S, YANG H, et al.Investigation of hybrid three-level hybrid device (hybrid2) active neutral-point-clamped converter[C]//2022 IEEE Transportation Electrification Conference and Expo, Asia-Pacific (ITEC Asia-Pacific). Haining, China, 2022: 1-5.
ZHANG D, HE J B, PAN D.A megawatt-scale medium-voltage high-efficiency high power density “SiC+Si” hybrid three-level ANPC inverter for aircraft hybrid-electric propulsion systems[J]. IEEE transactions on industry applications, 2019, 55(6): 5971-5980.
BEYE M L, BIMMEL L, BIER A, et al.Multilayer busbars for medium voltage ANPC converter dedicated to battery energy storage systems[C]//2022 24th European Conference on Power Electronics and Applications (EPE’22 ECCE Europe). Hanover, Germany, 2022: 1-8.
秦昌伟. 三电平光伏逆变器系统高性能调控技术研究[D]. 济南: 山东大学, 2019.
关清心. SiC & Si器件混合型高效率低成本中点钳位型三电平电路研究[D]. 武汉: 华中科技大学, 2018.
GUI H D, CHEN R R, ZHANG Z Y, et al.Methodology of low inductance busbar design for three-level converters[J]. IEEE journal of emerging and selected topics in power electronics, 2021, 9(3): 3468-3478.
GUAN Q X, LI C S, ZHANG Y, et al.An extremely high efficient three-level active neutral-point-clamped converter comprising SiC and Si hybrid power stages[J]. IEEE transactions on power electronics, 2018, 33(10): 8341-8352.
CHEN M X, PAN D H, WANG H, et al.Switching characterization of SiC MOSFETs in three-level active neutral-point-clamped inverter application[C]//2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019-ECCE Asia). Busan, Korea (South), 2019: 1793-1799.
HE J B, ZHANG D, PAN D.An improved PWM strategy for “SiC+Si” three-level active neutral point clamped converter in high-power high-frequency applications[C]// 2018 IEEE Energy Conversion Congress and Exposition (ECCE). Portland, OR, USA, 2018: 5235-5241.
NOVAK M, FERREIRA V, BLAABJERG F, et al.Evaluation of carrier-based control strategies for balancing the thermal stress of a hybrid SiC ANPC converter[C]//2021 IEEE Applied Power Electronics Conference and Exposition (APEC). Phoenix, AZ, USA, 2021: 2077-2083.
ZHANG Z, LIU Y F, WANG J Y.Optimal design of multi-channel water cooled radiator for motor controller of new energy vehicle[J]. CES transactions on electrical machines and systems, 2022, 6(1): 87-94.
STEFANIK J, ZYGMANOWSKI M.Power loss analysis of advanced-neutral-point-clamped converter with SiC MOSFETs and Si IGBTs[C]//2021 IEEE 19th International Power Electronics and Motion Control Conference (PEMC). Gliwice, Poland, 2021: 161-166.
WOLDEGIORGIS D, MANTOOTH A.Accurate power loss model of a three-level ANPC inverter utilizing hybrid Si/SiC switching devices[C]//2021 IEEE Energy Conversion Congress and Exposition (ECCE). Vancouver, BC, Canada, 2021: 2380-2385.