基于三相整流桥的直流电源输出自动控制方法

Automatic Control Method for DC Power Output Based on Three-phase Rectifier Bridge

受电源内阻以及负载变化的影响,直流电源输出会出现不同程度的波动.为此,文章提出基于三相整流桥的直流电源输出自动控制方法,在构建包含电源部分、二极管桥、负载部分以及滤波部分的三相桥式整流电路拓扑结构基础上,通过对三相桥式整流电路拓扑结构中的电容值和电感值进行针对性设置,利用反馈控制策略,结合直流电源的实际运行工况,实现对其输出的自适应控制.在测试结果中,设计控制方法下的输出电压与输入电压参数的拟合度最高,对应的控制效果最好.

Due to the influence of internal resistance of the power supply and load changes,the output of DC power supply will experience varying degrees of fluctuations.Therefore,this article proposes a research on automatic control method for DC power output based on three-phase rectifier bridge.On the basis of constructing a three-phase bridge rectifier circuit topology that includes the power supply,diode bridge,load section,and filtering section,targeted setting of capacitance and inductance values in the three-phase bridge rectifier circuit topology is carried out.By using feedback control strategy and combining with the actual operating conditions of DC power supply,adaptive control of its output is achieved.In the test results,the fit between the output voltage and input voltage parameters under the designed control method is the highest,and the corresponding control effect is the best.