具有单位功率因数输出的逆变电源研究

微特电机 ›› 2021, Vol. 49 ›› Issue (9): 39-42.

具有单位功率因数输出的逆变电源研究

胡琴¹, 李宏¹, 高龙²

1.西北工业大学航海学院,西安 710072;
2.宁波荣特电子有限公司,宁波 315000

收稿日期:2021-06-23 出版日期:2021-09-28 发布日期:2021-09-29
作者简介:胡琴(1997—),女,硕士研究生,研究方向为电力电子技术。

Research on T-Type Inverter Power Supply with Unit Power Factor Output

HU Qin¹, LI Hong¹, GAO Long²

1. School of Marine Science and Technology, Northwestern Polytechnical University, Xi'an 710072, China;
2. Ningbo Rontek Electronic Co., Ltd., Ningbo 315000, China

Received:2021-06-23 Online:2021-09-28 Published:2021-09-29

摘要/Abstract

摘要： 研究了T型三电平逆变电源的SVPWM算法,通过对该算法的分析,把用于常规三电平逆变器的改进型SVPWM算法应用于T型三电平逆变器,不仅省略了大量三角函数运算,还省去了小扇区判断的步骤。以三相参考电压的角度为三相合成矢量的相位角,采用电压外环与电流内环的双闭环控制,实现了单位功率因数输出。仿真结果表明,当逆变电源带容性或感性等非线性负载时,仍能实现单位功率因数输出,并验证了该方法的正确性。

关键词: T型三电平逆变电源, 60°坐标系, 空间矢量脉宽调制, 单位功率因数输出

Abstract: The SVPWM algorithm of the T-type three-level inverter power supply was studied. The improved SVPWM algorithm of the conventional three-level inverter was applied to the T-type three-level inverter, which not only omitted a large number of trigonometric function calculation, but also omitted the steps of small sector judgment. Taking the angle ofthe three-phase reference voltage as the phase angle of the three-phase composite vector, the double closed-loop control of the voltage outer loop and the current inner loop was adopted to achieve unity power factor output. The simulation results show that when the inverter power supply has a non-linear load such as capacitive or inductive load, it can still achieve the characteristics of unit power factor output, which verifies the correctness of the method.

Key words: T-type inverter power supply, 60°coordinate system, space vector pulse width modulation(SVPWM), unit power factor output

中图分类号:

TM464

胡琴, 李宏, 高龙. 具有单位功率因数输出的逆变电源研究[J]. 微特电机, 2021, 49(9): 39-42.

HU Qin, LI Hong, GAO Long. Research on T-Type Inverter Power Supply with Unit Power Factor Output[J]. Small & Special Electrical Machines, 2021, 49(9): 39-42.

参考文献

[1] SCHWEIZER M,LIZAMA I,FRIEDLI T,et al.Comparison of the chip area usage of 2-level and 3-level voltage source converter topologies[C]//IECON 2010 -36th Annual Conference on IEEE Industrial Electronics Society,Glendale,AZ,2010:391-396.
[2] SHIN H,LEE K,CHOI J,et al.Power loss comparison with different PWM methods for 3L-NPC inverter and 3L-T type inverter[C]//2014 International Power Electronics and Application Conference and Exposition,2014:1322-1327.
[3] DUTRA A,VITORINO M A, CORREA M.DC-AC multilevel T-type isolated three-phase indirect matrix inverter[C]//2019 21st European Conference on Power Electronics and Applications (EPE '19 ECCE Europe),2019:1-10.
[4] KOULALI M .Adaptive fuzzy control of hybrid PV/fuel cell and battery system using three-level T type inverter[J].Przeglad Elektrotechniczny,2019,1(12):26-33.
[5] NIJHAWAN P, BHATIA R S, JAIN D K.Comparison of SPWM and SVPWM controls for three phase inverter with different loads in distribution networks[J].International Journal on Engineering Applications IREA,2013,1(6):288-297.
[6] 郭利辉.T型三电平逆变器无差拍电流预测和中点平衡控制方法[J].电力系统保护与控制,2016,44(18):127-132.
[7] LÜ C Z, CENG A R, GONG X L,et al.Loss optimization method based on the main circuit of T-type SVPWM[C]//Proceedings of 2018 2nd International Conference on Energy and Power Engineering(EPE 2018), 2018:198-203.
[8] RAN D ,MEI J ,ZHAO J ,et al.A simplified balance factor based midpoint voltage deviation eliminating method for T-type three-level inverter[C]//2016 International Conference on Smart Grid and Clean Energy Technologies (ICSGCE).IEEE,2016:328-333.
[9] LIU S,LI S,XIAO H.Vector control system of induction machine supplied by three-level inverter based on a fast SVPWM algorithm[C]//2010 International Conference on Intelligent System Design and Engineering Application,2010:810-813.
[10] 涂春鸣,杨义,肖凡,等.非线性负载下微电网主逆变器输出侧电能质量控制策略[J].电工技术学报,2018,33(11):2486-2495.
[11] LIM K, CHOI J. Seamless grid synchronization of a proportional+resonant control-based voltage controller considering non-linear loads under islanded mode[J].Energies,2017(10): 1514.
[12] 苗德根.LC型逆变器稳定性分析与输出电压质量提高策略的研究[D].重庆:重庆大学,2019.
[13] 吴云亚,阚加荣,谢少军.基于双d-q坐标系的并网逆变器控制策略[J].电工技术学报,2011,26(8):106-112.
[14] 崔文峰,赵一,刘祖斌,等.一种单相并网逆变器电流相位的补偿方法[J].电力电子技术,2011,45(8):81-83.
[15] 孟翔翼.逆变器电源带非线性负载控制策略研究[D].北京:北京交通大学,2020.
[16] 赵辉,李瑞,王红君,等.60°坐标系下三电平逆变器SVPWM方法的研究[J].中国电机工程学报,2008(24):39-45.