适用于电流源型逆变器的SVPWAM调制策略及其损耗分析

doi:10.16628/j.cnki.2095-8188.2022.12.010

摘要/Abstract

摘要：

为降低开关管动作次数、提升逆变系统功率密度,提出了一种SVPWAM调制策略。相比于传统多段式SVPWM调制策略,所提策略通过将传统(直通)零矢量的作用时间按比例分配给有效矢量,减少了扇区内的开关状态数量;同时通过合理的选择与插入非传统(开路)零矢量,保证开关状态切换时仅有一个开关管动作,减少了开关动作次数,降低了开关损耗。为详细分析所提调制方法下的器件损耗,使用Simulink和PLECS软件分别搭建了传统多段式SVPWM与SVPWAM调制方式下联合仿真模型,并结合实验结果给出了两种不同调制方式下器件损耗及分析。

关键词: 空间矢量脉冲宽度幅值调制, 电流源型Trans准Z源逆变器, 热损耗, 联合仿真

Abstract:

In order to reduce the number of switching operations and increase the power density of the inverter system,a SVPWAM modulation strategy is proposed.Compared with the traditional muti-segment SVPWM modulation strategy,the proposed strategy reduces the number of switching states in the sector by proportionally allocating the action time of the traditional(pass-through) zero vector to the effective vector.At the same time,through reasonable selection and insertion of non-traditional(open) zero vectors,it can ensure that there is only one switch tube operation when switching the switch state,which can reduce the number of switching actions and switching losses.In order to analyze the device of switching loss under the modulation method in detail,the co-simulation model of the traditional multi-segment SVPWM and SVPWAM modulation methods is constructed by using Slimlink and PLECS software,and the device of losses and analysis under two different modulation modes are given based on the experimental results.

Key words: space vector pulse width amplitude modulation(SVPWAM), current source Trans quasi-Z source inverter, heat loss, co-simulation

中图分类号:

TM464

赵鋆, 艾远高, 向强铭, 夏国强, 黄家志. 适用于电流源型逆变器的SVPWAM调制策略及其损耗分析[J]. 电器与能效管理技术, 2022, 0(12): 61-69.

ZHAO Yun, AI Yuangao, XIANG Qiangming, XIA Guoqiang, HUANG Jiazhi. SVPWAM Modulation Strategy and Its Loss Analysis for Current Source Inverter[J]. LOW VOLTAGE APPARATUS, 2022, 0(12): 61-69.

图/表 16

图1

图2

图3

图4

表1

不同扇区下开关状态逻辑值

扇区	有效矢量一	开路零矢量	有效矢量二
Ⅰ	$100010$	$100000$	$100001$
Ⅱ	$100001$	$000001$	$010001$
Ⅲ	$010001$	$010000$	$010100$
Ⅳ	$010100$	$000100$	$001100$
Ⅴ	$001100$	$001000$	$001010$
Ⅵ	$001010$	$000010$	$100010$

表1

图5

表2

图6

图7

图8

图9

图10

图11

图12

图13

表3

参考文献 19

[1]	BAI Z, RUAN X, ZHANG Z. A genericsix-step direct PWM(SS-DPWM)scheme for current source converter[J]. IEEE Transactions on Power Electronics, 2010, 25(3):659-666. doi: 10.1109/TPEL.2009.2035122
[2]	OJO O, VANAPARTHY S. Carrier-based discontinuous PWM modulation for current source converters[C]// Industry Applications Conference, 2004:2224-2231.
[3]	ASIMINOAEI L, RODRIGUEZ P, BLAABJERG F. Application of discontinuous PWM modulation in active power filters[J]. IEEE Transactions on Power Electronics, 2008, 23(4):1692-1706. doi: 10.1109/TPEL.2008.924599
[4]	BAUMANN M, NUSSBAUMER T, KOLAR J W. Comparative evaluation of modulation methods of a three-phase buck + boost PWM rectifier.Part I:Theoretical analysis[J]. LET Power Electronics, 2008, 1(2):255-267.
[5]	周卫平, 吴正国, 唐劲松, 等. SVPWM的等效算法及SVPWM与SPWM的本质联系[J]. 中国电机工程学报, 2006, 26(2):133-137.
[6]	徐栋, 王英. 大功率两电平电压源逆变器脉宽调制策略的研究[J]. 电器与能效管理技术, 2021(8):64-69.
[7]	谭风雷, 朱超, 邓凯. 适用于多电平MMC-SVG的简化SVPWM方法研究[J]. 浙江电力, 2022, 41(1):64-70.
[8]	李涛, 张晓锋, 乔鸣忠. SPWM与SVPWM的宏观对等性研究[J]. 中国电机工程学报, 2010,(增刊):178-184.
[9]	VODYAKHO O, HACKSTEIN D, STEIMEL A, et al. Novel direct current-space-vector control for shunt active power filters based on the three-level inverter[J]. IEEE Transactions on Power Electronics, 2008, 23(4):1668-1678. doi: 10.1109/TPEL.2008.925181
[10]	STEFANOVIC V R, VUKOSAVIC S N. Space-vector PWM voltage control with optimized switching strategy[C]// 1992 Industry Applications Society Meeting, 1992:1025-1033.
[11]	陈哲军. 基于混合控制LLC谐振变换器的微功率光伏逆变器[J]. 电器与能效管理技术, 2020(11):70-76,84.
[12]	HALKOSAARI T, TUUSA H. Optimal vector modulation of a PWM current source converter according to minimal switching losses[C]// 2000 Power Electronics Specialists Conference, 2000:127-132.
[13]	朱永强, 高晨格. 能量损耗系统化分类与新型能效评估指标[J]. 电器与能效管理技术, 2020(3):97-103.
[14]	杨金成, 郭泽林, 袁铁江, 等. 大数据环境下基于改进SVM的典型负荷类型识别[J]. 电力电容器与无功补偿, 2021, 42(4):170-175.
[15]	许德伟, 朱东起, 黄立培, 等. 电力半导体器件和装置的功率损耗研究[J]. 清华大学学报:自然科学版, 2000, 40(3):6-9.
[16]	汪绪彬, 王学梅, 张波. 恒功率区无零矢量SVM对功率器件结温的改善[J]. 电源学报, 2018, 16(5):73-81.
[17]	LEI Q, CAO D, PENG F Z. Novel loss and harmonic minimized vector modulation for a current-fed quasi-z-source inverter in hev motor drive application[J]. IEEE Transactions on Power Electronics, 2014, 29(3):1344-1357. doi: 10.1109/TPEL.2013.2260173
[18]	QIAN W, PENG F Z, CHA H. Trans-Z-Source Inverters[J]. IEEE Transactions on Power Electronics, 2010, 26(12):3453-3463. doi: 10.1109/TPEL.2011.2122309
[19]	郭强, 刘和平, 彭东林. 电动汽车用高性能电流型trans-Z源逆变器特性研究[J]. 电机与控制学报, 2015, 19(5):74-80.

扇区	N	T₁'	T₂'	S₁占空比	S₃占空比	S₅占空比	S₄占空比	S₆占空比	S₂占空比
I	4	XT_s'	YT_s'	1	0	0	0	D₁	D₂
II	6	T_s'/Y	ZT_s'	D₁	D₂	0	0	0	1
III	2	T_s'/Z	T_s'/X	0	1	0	D₂	0	D₁
IV	3	XT_s'	YT_s'	0	D₁	D₂	1	0	0
V	1	T_s'/Y	ZT_s'	0	0	1	D₁	D₂	0
VI	5	T_s'/Z	T_s'/X	D₂	0	D₁	0	1	0

参数	D_op
参数	0	0.1
P_{_sw_SVPWM}/W	12.80	14.30
P_{_cond_SVPWM}/W	16.93	7.77
占比(P_{_sw}/P_{_total})/%	43.05	64.79
P_{_sw_SVPWAM}/W	8.12	5.70
P_{_cond_SVPWAM}/W	9.31	5.92
占比(P_{_sw}/P_{_total})/%	46.58	49.05