A Mathematical Structural Modulation Method for Neutral-Point Potential Balancing of Three-Level Neutral-Point-Clamped Converters

被引：1

作者：

Wang, Hui ^{[1
]}

Ha, Lifang ^{[1
]}

Lin, Jianheng ^{[1
]}

Wang, Sizheng ^{[1
]}

Xie, Shiming ^{[1
]}

Chen, Xida ^{[1
]}

Su, Mei ^{[1
]}

机构：

[1] Cent South Univ, Sch Automat, Hunan Prov Key Lab Power Elect Equipment & Gird, Changsha 410083, Peoples R China

来源：

IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS | 2024年 / 12卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Modulation; Electric potential; Monte Carlo methods; Convergence; Voltage control; Topology; Hardware; Finite-time convergence; mathematic structural; neutral-point (NP) potential balance; three-level NP-clamped (3L-NPC) converters; MODEL-PREDICTIVE CONTROL; SPACE VECTOR MODULATION; PWM; ENHANCEMENT; ELIMINATION; INVERTERS; INJECTION; STRATEGY;

D O I：

10.1109/JESTPE.2023.3265371

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

To achieve the fast neutral-point (NP) potential balance of three-level NP -clamped (3L-NPC) converters, a mathematical structural modulation method is presented in this article, featuring fast balance capability, low computation, and easy implementation. In this method, the duty cycle is decomposed into the differential-mode component (DMC) and the common-mode component (CMC). The CMC is used to synthesize the ac output voltage while the DMC is adopted to control the NP potential. Based on the fractional-order sliding-mode control theory, the DMC is constructed. As a result, NP potential balancing in a pre-calculated time is achieved. Finally, the effectiveness of the proposed method is verified by experimental results.

引用

页码：1573 / 1582

页数：10

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