新型耦合电感阻抗源逆变器应力简化分析方法*

doi:10.11985/2022.03.016

电气工程学报 ›› 2022, Vol. 17 ›› Issue (3): 138-146.doi: 10.11985/2022.03.016

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新型耦合电感阻抗源逆变器应力简化分析方法^*

李奕杰¹^,²(), 陈良亮¹^,³(), 孔庆朝⁴(), 刘鸿鹏⁴()

1.南瑞集团(国网电力科学研究院)有限公司南京 211106
2.国电南瑞南京控制系统有限公司南京 211106
3.国电南瑞科技股份有限公司南京 211106
4.东北电力大学现代电力系统仿真控制与绿色电能新技术教育部重点实验室吉林 132012

收稿日期:2021-09-06 修回日期:2022-03-24 出版日期:2022-09-25 发布日期:2022-10-28
作者简介:李奕杰,女,1987年生,硕士,工程师。主要研究方向为电动汽车充换电技术。E-mail： 836549021@qq.com
陈良亮,男,1975年生,博士,教授级高级工程师。主要研究方向为电动汽车充换电技术。E-mail： 130198138@qq.com
孔庆朝,男,1994年生,硕士研究生。主要研究方向为阻抗源变换器。E-mail： kong269371853@126.com
刘鸿鹏,男,1978年生,博士,教授。主要研究方向为光伏并网发电、微电网技术、储能与节能技术和电力电子可靠性。E-mail： liu_hp@neepu.edu.cn
基金资助:
*国家电网有限公司科技资助项目(52094021N00S)

A Simplified Stress Analysis Method for Coupled-inductor Impedance-source Inverters

LI Yijie¹^,²(), CHEN Liangliang¹^,³(), KONG Qingchao⁴(), LIU Hongpeng⁴()

1. NARI Group Corporation (State Grid Electric Power Research Institute), Nanjing 211106
2. NARI Technology Nanjing Control System Co., Ltd., Nanjing 211106
3. NARI Technology Co., Ltd., Nanjing 211106
4. Key Laboratory of Modern Power System Simulation and Control & Renewable Energy Technology, Ministry of Education, Northeast Electric Power University, Jilin 132012

Received:2021-09-06 Revised:2022-03-24 Online:2022-09-25 Published:2022-10-28

摘要/Abstract

摘要：

耦合电感型阻抗源逆变器含有多个电感和电容,器件应力分析时通常采用安秒和伏秒平衡计算变换器的状态变量,计算过程冗长且容易出错。因此,为了简化电路分析,提出一种适用于耦合电感型阻抗源逆变器拓扑的无源器件消除方法。通过消除电路中的电容支路或电感支路,然后在一个开关周期内对电路进行平均化,根据所获得的等效平均化电路求解电路中电流、电压状态变量,使得电路的各个状态量之间耦合关系得到简化。为了阐述所提方法的分析过程,以高升压比Y源逆变器为例计算关键元件的电流和电压应力,并与传统分析方法进行比较。最后,通过试验验证所提方法的正确性。

关键词: 耦合电感, 阻抗源逆变器, 无源器件, 电压应力, 电流应力

Abstract:

The coupled-inductor impedance-source inverter contains multiple inductors and capacitors. The ampere-second and volt-second balance have been commonly adopted for calculating state variables in the stress analysis. But the calculation process is tedious and error-prone. Therefore, to simplify the circuit analysis, a reactive component elimination method is proposed to be applied for coupled-inductor impedance-source inverters. By eliminating the capacitor branches or inductor branches, the circuit can be averaged in one switching period. Then, the voltage and current variables can be calculated in the obtained equivalent average circuits, consequently simplifying the coupling relations among state variables. To illustrate the analysis procedure of the proposed method, current and voltage stresses of a coupled-inductor impedance-source inverter are determined using both the traditional and the proposed methods. Finally, their subsequent comparison and experimental results confirm the effectiveness of the proposed method.

Key words: Coupled-inductor, impedance-source inverter, reactive component, voltage stress, current stress

中图分类号:

TM561

李奕杰, 陈良亮, 孔庆朝, 刘鸿鹏. 新型耦合电感阻抗源逆变器应力简化分析方法^*[J]. 电气工程学报, 2022, 17(3): 138-146.

LI Yijie, CHEN Liangliang, KONG Qingchao, LIU Hongpeng. A Simplified Stress Analysis Method for Coupled-inductor Impedance-source Inverters[J]. Journal of Electrical Engineering, 2022, 17(3): 138-146.

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参考文献 16

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参数	数值/型号
输入电压/V	80
输出电压(峰峰值)/V	160
负载电阻/Ω	60
电容C₁和C₃/μF	470
电容C₂和C₄/μF	100
电感L_in/mH	4.3
开关频率/kHz	10
匝数比	80∶40∶40
磁心型号	C055863A2
开关管	IRGP4062DPbF
二极管D	STPSC20H12DY
滤波电感L_f/mH	5.6
滤波电容C_f/μF	4.7

新型耦合电感阻抗源逆变器应力简化分析方法^*

A Simplified Stress Analysis Method for Coupled-inductor Impedance-source Inverters

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