A new high voltage gain DC-DC converter based on active switched-inductor technique

被引:11
作者
Imanlou, Arash [1 ]
Najmi, Ebrahim Seifi [2 ]
Babaei, Ebrahim [1 ,3 ]
机构
[1] Univ Tabriz, Fac Elect & Comp Engn, Tabriz, Iran
[2] Roshdieh Higher Inst Educ, Tabriz, Iran
[3] Near East Univ, Engn Fac, TR-10 Mersin, Turkiye
关键词
active switched-inductor; coupled-inductor; DC-DC converter; high voltage gain; step-up; COUPLED-INDUCTOR; BOOST CONVERTER; NETWORK; FAMILY;
D O I
10.1002/cta.3768
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 article proposes a brand-new high voltage gain step-up DC-DC converter through the amalgamation of active switched-inductors (A-SL) and a coupled-inductor (CL) unit. This topology stands out due to its capacity to achieve noteworthy high voltage amplification employing a lesser amount of components when put in contrast to other comparable topologies. The voltage stress across the switches is low, which enables the utilization of low-voltage rating switches to elevate efficiency. Moreover, the division of the input current between the switches of the converter enables the power dissipation to be diminished. The CL is utilized in a way that if the turn ratio of its windings is lessened, the voltage boost will be augmented. Furthermore, the leakage energy is recycled through the output diode; therefore, problems such as voltage spikes across the switches do not occur. Moreover, the output diode turns off naturally without reverse recovery problems. The switching pattern of the converter is simple, and both switches are driven simultaneously, and the converter can be controlled using a simple controller in a closed-loop control method. In addition, the duty cycle range has no limitations. The operation principle and the steady-state analysis of the proffered converter are discussed in detail for CCM and DCM. The design considerations and efficiency analysis are provided, followed by small-signal modeling and controller design. Moreover, to evaluate the performance of the proffered converter among other topologies, a comparison study is conducted in terms of voltage gain, total device count, and voltage tension on the power switches and diodes. Finally, a 200-300 W, 28/400 V lab-based prototype is implemented and tested to validate the analysis.
引用
收藏
页码:634 / 657
页数:24
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