Current Sensorless Control for Dual Active Bridge DC-DC Converter with Estimated Load-Current Feedforward

被引：66

作者：

Xiong, Fei ^{[1
]}

Wu, Junyong ^{[1
]}

Liu, Zicheng ^{[1
]}

Hao, Liangliang ^{[1
]}

机构：

[1] Beijing Jiaotong Univ, Sch Elect Engn, Beijing 100044, Peoples R China

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2018年 / 33卷 / 04期

关键词：

Dual active bridge (DAB); load current feedforward; nonlinear disturbance observer (NDO); sensorless; NONLINEAR-DISTURBANCE-OBSERVER; MODE CONTROL; SYSTEMS;

D O I：

10.1109/TPEL.2017.2705344

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：

This paper proposes a current sensorless control strategy for the dual active bridge (DAB) converter with nonlinear disturbance observer (NDO)-based load current feedforward. The proposed method can regulate both the dc-bus voltage and the current of the DAB converter without current sensors. Several performance indexes are established for the parameter design and a detailed design method is presented in this paper. When a single-phase H-bridge inverter is connected, the double-frequency oscillation from the feedback path is suppressed by proper parameter design, while the transient response of dc-bus voltage can be further improved by the NDO-based load current feedforward with a notch filter in the feedforward path. The performance of the proposed control method and the effectiveness of the parameter design are verified in a prototype by experimental results.

引用

页码：3552 / 3566

页数：15

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