Working Principle: Converts utility-frequency AC power into adjustable-frequency AC power through rectification, filtering, and inversion stages. Utilizes PWM technology to regulate output voltage and frequency, enabling smooth motor speed control.

Core Advantages: Supports soft start and stepless speed regulation, reducing mechanical impact with significant energy savings. Particularly suitable for variable-load equipment such as fans and pumps.

Control Methods: Supports V/F control or vector control. Vector control enables precise independent adjustment of torque and speed, enhancing dynamic response performance.

Application Fields: Widely used in industrial automation, HVAC systems, conveying equipment, and compatible with three-phase asynchronous motors to improve system energy efficiency and control precision.