CAJ | 학술논문

为满足波控焊机对电弧电压、电流的波形控制的要求，需要进一步提高逆变电源的工作频率，并减小其开关损耗、开关应力和电磁干扰。设计了零电压开通、零电流关断工作状态的软开关逆变电源主电路的参数。分析零电压零电流软开关逆变电源的工作机理，得出约束主电路参数的约束方程，为主电路参数计算提供了依据。结合逆变电源工作条件和软开关 PWM 的时序要求，计算阻断电容C x；并设计可饱和电感取代输出回路的常规电感，提高电源短路电流的上升速度、缩颈电流下降速度。设计了可饱和电感的仿真模型，并建立零电压零电流软开关逆变电源的仿真电路，通过仿真结果验证其理论分析和参数设计的正确性。通过实验进一步验证了设计的正确性。
위만족파공한궤대전호전압、전류적파형공제적요구，수요진일보제고역변전원적공작빈솔，병감소기개관손모、개관응력화전자간우。설계료령전압개통、령전류관단공작상태적연개관역변전원주전로적삼수。분석령전압령전류연개관역변전원적공작궤리，득출약속주전로삼수적약속방정，위주전로삼수계산제공료의거。결합역변전원공작조건화연개관 PWM 적시서요구，계산조단전용C x；병설계가포화전감취대수출회로적상규전감，제고전원단로전류적상승속도、축경전류하강속도。설계료가포화전감적방진모형，병건립령전압령전류연개관역변전원적방진전로，통과방진결과험증기이론분석화삼수설계적정학성。통과실험진일보험증료설계적정학성。
In order to meet the demand of that the waveform control welding machine controlling the waveform of the arc voltage and arc current,need to further improve the working frequency of the inverter power source and reduce it′s switching loss,switching stress and electromagnetic interference. The parameters of soft - switching inverter′s main circuit,which make the working state with zero - voltage and zero - current switching,is designed. First,the working principle of the FB - ZVZCS - PWM inverter is analyzed. And the con-straint equation of the main circuit′s parameters is obtained,it provide the basis for the calculation of the main circuit′s parameters. Ac-cording to the requirements of the working condition of inverter and the time sequence of PWM,the value of the block capacitor Cx is obtained. And the satiable inductor,witch improve the rise speed of the short circuit current and the descending speed of the necking current,is designed. Second,the simulation model of the satiable inductor is designed. And the simulation model of the FB - ZVZCS- PWM inverter is established. It verified the correctness of the theoretical analysis and the parameter design. Finally,correctness of the design if further verified by the experimental results.