Novel modified phase-shift modulation strategy for isolated AC-DC power converters

被引：4
|
作者：
Llomplat, Marcelo [1 ]
Bosso, Jonathan E. [1 ]
Carballo, Roberto E. [2 ]
Garcia, Guillermo O. [1 ]
机构：
[1] Univ Nacl Rio Cuarto, IITEMA, CONICET, GEA,Fac Ingn, Ruta Nacl 36,Km 601, Cordoba, Argentina
[2] Univ Nacl Misiones, GID IE, CONICET, Inst Mat Misiones IMAM,Fac Ingn, Juan Manuel de Rosas 325, Obera, Misiones, Argentina
来源：
IET POWER ELECTRONICS | 2020年 / 13卷 / 05期
关键词：
STATE TRANSFORMER TECHNOLOGIES; SYSTEM;
D O I：
10.1049/iet-pel.2019.0895
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：
Different power converter topologies are used to perform the energy exchange between an AC grid and a DC source belonging to a hybrid electric micro-grid. A single-phase single-stage isolated AC-DC power converter is one of them. Moreover, this power converter can operate under different modulation strategies. The phase-shift modulation (PSM) strategy is capable of varying the phase between the voltages applied to the high-frequency transformer terminals of the power converter in order to control the energy flow in both directions. Based on the PSM strategy, this study presents a novel modified PSM strategy capable of controlling the power flow in both directions and obtaining a current with low total harmonic distortion and a power factor close to 1 for the entire operating range on the AC side. Considering the novel modulation strategy to be proposed, a comparison of three PSM-based modulation strategies was carried out taking into account the total harmonic distortion of current injected into the AC grid, the power factor and the average power transferred. A theoretical analysis was carried out and the results obtained were validated by means of experimental results.
引用
收藏
页码：1022 / 1032
页数：11
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