中国电机工程学报2016，Vol.36Issue(13)：3598-3608,11.DOI:10.13334/j.0258-8013.pcsee.160100
三电平ANPC逆变器中点电压平衡和开关损耗减小的SVM控制策略
A Space Vector Modulation Scheme for Three-level ANPC Inverters With Neutral-point Potential Balancing and Switching Loss Reduction
摘要
Abstract
The active neutral point clamped (ANPC) topology enable additional switch states and commutations compared to the neutral point clamped (NPC) topology. ANPC topology can overcome disadvantages of unequal semiconductor loss distribution in NPC topology. This paper investigated the control strategy of the neutral-point potential (NP) balancing and the switching loss (SL) reduction for three-level ANPC inverters. An novel three-level space vector pulse width modulation (SVM) was proposed to control the NP imbalance and to reduce the SL simultaneously. The novel virtual medium vectors were redefined, which were synthesized by the original medium vector and the adjacent two pairs of small vectors. Therefore, using the proposed VSVM, there are two pairs of small vectors in any region of the space vector diagram, which one pair of small vectors can be used to control the NP, and another pair of small vectors can be used for reducing the SL. The coordinately selected small vectors consider both the NP charge and the pulse sequence, so that the minimized NP ripple and switching events are guaranteed in one switching cycle. The simulation and experimental results are provided to verify the effectiveness of the proposed control strategy.关键词
三电平逆变器/有源中点钳位/虚拟空间矢量/中点电压平衡/开关损耗减小Key words
three-level inverter/active neutral point clamped/virtual space vector/neutral-point potentialbalancing/switching loss reduction分类
信息技术与安全科学引用本文复制引用
胡存刚,芮涛,马大俊,王群京,罗方林..三电平ANPC逆变器中点电压平衡和开关损耗减小的SVM控制策略[J].中国电机工程学报,2016,36(13):3598-3608,11.基金项目
国家自然科学基金项目(51307002)；安徽省高校自然科学研究重大项目(KJ2016SD02)。 Project Supported by National Natural Science Foundation of China (51307002) （51307002）
College and University Major Natural Science Foundation of Anhui Province (KJ2016SD02) （KJ2016SD02）
