CAJ | 학술논문

针对焊接系统直流电压的工作特点，详细分析了输出端电压型 Boost DC / DC 变换器的拓扑电路结构及其相应的控制方法。采用双频率 BF（Bi - Frequency）控制方法，采用两组导通时间相同但频率不同的控制脉冲实现对开关管控制；分析了电压型双频率调制 DCM Boost 变换器的工作原理以及工作过程分析了纹波特性和脉冲组合特性，用 PSIM 仿真软件对其进行仿真分析，仿真验证了该拓扑结构具有快速的瞬态响应特性。在降低 EMI 噪声以及快速瞬态响应速度方面，比传统的脉冲宽度调制（PWM）和脉冲频率调制（PFM）更具优越性。搭建了电压型 Boost 变换器样机实验平台，通过实验验证了其可行性。
침대한접계통직류전압적공작특점，상세분석료수출단전압형 Boost DC / DC 변환기적탁복전로결구급기상응적공제방법。채용쌍빈솔 BF（Bi - Frequency）공제방법，채용량조도통시간상동단빈솔불동적공제맥충실현대개관관공제；분석료전압형쌍빈솔조제 DCM Boost 변환기적공작원리이급공작과정분석료문파특성화맥충조합특성，용 PSIM 방진연건대기진행방진분석，방진험증료해탁복결구구유쾌속적순태향응특성。재강저 EMI 조성이급쾌속순태향응속도방면，비전통적맥충관도조제（PWM）화맥충빈솔조제（PFM）경구우월성。탑건료전압형 Boost 변환기양궤실험평태，통과실험험증료기가행성。
For the working characteristics of Welding system ,the paper analyzes the structure of the Welding system circuit topology the output of the voltage - Boost DC / DC converter,and a detailed analysis of its corresponding control methods. In this paper,a dual frequency BF(Bi - Frequency)control method using two identical but on - time control pulses of different frequencies to achieve the control switch,a detailed analysis of the working principle of voltage dual frequency modulation DCM Boost Converter and work process,analyze the characteristics and ripple pulse combination of features,its simulation analysis using PSIM simulation software simulation of the topology with fast transient response characteristics. Reduce EMI noise and fast transient response speed than conven-tional pulse width modulation(PWM)and pulse frequency modulation(PFM)has advantages. Finally Voltage Boost Converter builds a prototype experiment platform,through experimental verification of its feasibility.