Abstract: To achieve high-efficiency energy utilization in the motor system of a zero-carbon factory, a complete set of regenerative braking energy recovery equipment has been designed to address the difficulty of energy recovery caused by the gradual decline in output voltage during the motor braking process. This device uses the ARM STM32 microcontroller as the core controller and employs an incremental PID control algorithm to achieve integrated control of motor braking and driving modes. Through a push-pull transformer circuit and a voltage negative feedback mechanism, a boost loop is formed to elevate the braking energy, while an electronic switching circuit enables seamless transition between braking and driving modes. Experiments demonstrate that this device can effectively boost the braking energy to meet the charging voltage requirements of the energy storage system. The PID control algorithm precisely regulates the motor speed in driving mode, significantly improving the energy utilization efficiency of the zero-carbon factory.