A Proposed Neutral-Point Voltage Balancing Method for Three-Phase Three-Level T-type Inverter under Non-Unity Power Factor

被引：1
|
作者：
Ren, Sheng [1 ]
Chen, Min [1 ]
Cai, Haoqing [1 ]
Hu, Changsheng [1 ]
机构：
[1] Zhejiang Univ, Coll Elect Engn, Hangzhou, Peoples R China
来源：
2022 IEEE 13TH INTERNATIONAL SYMPOSIUM ON POWER ELECTRONICS FOR DISTRIBUTED GENERATION SYSTEMS (PEDG) | 2022年
关键词：
PCS; 3LT2I; NP voltage balance; non-unity power factor; MODULATION STRATEGY;
D O I：
10.1109/PEDG54999.2022.9923194
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
As a typical topology of power conversion system (PCS), three-phase three-level T-type inverter (3LT2I) may have the problem of neutral-point (NP) voltage unbalance under nonunity power factor (PF), of which the mechanism is analyzed in this paper. Based on the analysis, an NP voltage balancing method is proposed. It adjusts modulation wave according to the direction of both the modulation wave and the inductor current. The effectiveness of the proposed method has been verified by experimental results.
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页数：6
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