Simulation Research Based on a New High Gain Boost Converter

doi:10.11985/2018.10.003

Abstract

Abstract:

High gain DC/DC converters have been widely used in photovoltaic, new energy, aerospace and other fields. In order to improve the reliability of Boost circuits in high gain applications, a new high gain Boost converter is proposed. The new converter added the switched capacitor unit and the coupling inductor lift unit on the traditional Boost circuit. The circuit can get the high output voltage with a reasonable duty cycle, and also reduce the voltage stress and the input current ripple of the switch tube, thus improving the efficiency of the converter. In this paper, the working principle and steady state characteristics of the circuit are analyzed in detail, and the control strategy of the circuit is given. On the basis of the theory, the experimental verification is carried out by using PSIM simulation software. The simulation results show that the new high gain Boost converter is theoretically correct and feasible.

Key words: High gain Boost circuits, coupled inductor, simulation

CLC Number:

TM46

Ding Min,Wu Guiqing,Hu Jin. Simulation Research Based on a New High Gain Boost Converter[J]. Journal of Electrical Engineering, 2018, 13(10): 11-16.

Figures/Tables 10

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References 6

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增益提高方法	电路增益M
基于开关电容网络与并联交错结构	3/(1 - D)
自举升压与二次变换相结合	1 + 1/(1 - D)
开关电感、开关电容与自举升压相结合	3(1 + D)/(1 - D)
本文提出的方法	2[1/N² + 1/(1 - D)]

参数	指标	参数	指标
输入电压V_in/V	12	储能电容C₃/μF	270
输出电压V₀/V	80±5	储能电容C₄/μF	68
输出功率P₀/W	140	储能电容C₅/μF	68
开关频率f /kHz	63	储能电感L₁/mH	0.5
储能电容C₁/μF	10	储能电感L₂/mH	1
储能电容C₂/μF	10	负载电阻R/Ω	57

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