PID control is a control algorithm with decades of application experience, characterized by its simple control process, easy-to-tune parameters, and minimal reliance on system parameters during the design phase. It boasts good robustness and high reliability, making it a widely used and mature control technology. It has been extensively applied in sine wave inverter power supply systems for simulation control. After being digitalized, it overcomes many shortcomings of analog PID controllers, allowing for convenient adjustment of PID parameters and offering great flexibility and adaptability. Compared to other control methods, digital PID control has the following advantages: The PID algorithm encompasses key information from the past, present, and future of the dynamic control process, ensuring a quick, accurate, and smooth control process with excellent control outcomes. Aerial Ground Power 2, 36V Aerial Power 1, 400Hz Frequency Conversion Power Supply 7, 115/200V Power Supply 2, 27V DC Power Supply 5, 400Hz Power Supply 12, Aerial Power Supply
PID control does not overly rely on system parameters during the design process, and changes in system parameters have a minimal impact on the control effect. It boasts good adaptability and robustness. The PID algorithm is straightforward and easy to implement on microcontrollers or DSPs. There are two limitations to using digital PID control algorithms. First, the sampling quantization error of the system reduces the control accuracy of the algorithm; secondly, the sampling and calculation delays turn the controlled system into a pure time-delay system, which reduces the stability domain of the PID controller and increases the difficulty of design.
