Non-singular fast terminal sliding mode control method applying synchronous converter and converter

The invention discloses a nonsingular fast terminal sliding mode control method applying a synchronous converter, and the method comprises the following steps: building a state space average equation of a Buck converter, and setting a difference value between an output reference value and an output measurement value; determining a non-singular fast terminal sliding mode surface, and determining an approaching law of the non-singular fast terminal sliding mode surface; and constructing a sliding mode controller according to the nonsingular fast terminal sliding mode surface and the reaching law, generating a PWM driving signal according to an output value of the sliding mode controller, and controlling the Buck converter. According to the invention, the tracking precision of the output voltage is improved, the anti-interference capability and following performance of the system are improved, the load disturbance can be effectively inhibited, and the system is more stable. 本发明公开了应用同步变换器的非奇异快速终端滑模控制方法，本方法包括以下步骤：