Steady voltage and frequency power supplies can be divided into four main parts from the functional perspective: the input section, the AC-DC conversion section, the INV section, and the output section. Among these four parts, the INV section is the skillful point, with both control algorithms and control circuits being relatively complex. Aviation Power Supply
Three-phase voltage and frequency stabilization power supplies, utilizing Sine Pulse Width Modulation (SPWM) control technology, is a method that modulates the width of a series of pulses to equivalently obtain the required waveform (including shape and amplitude). SPWM control technology is widely used in inverter circuits, with the vast majority of practical inverter circuits being of the SPWM type. It is precisely due to its application in inverter circuits that SPWM control technology has confirmed its significant position in power electronic technology. This section primarily introduces the control technology of three-phase voltage and frequency stabilization power supplies, with the inverter circuit as the control target. 400Hz power supply
