Single-Phase Inverter Intelligent Control System Base on DSP

To make an analysis on the output exists oscillation of inverter Fuzzy control system, this paper focuses on the digital signal processor (DSP), brings variable universe into Fuzzy self-tuning PID control structure, and put forward a Fuzzy self-tuning PI double closed loop inverter controller based on variable universe, so as to achieve an online adaptive stretching changes of Fuzzy universe. The emulation results show that under the circumstance of resistive load, this controller has a less output overshoot and stronger adaptability compared with the conventional PID controller, which has improved the steady-state accuracy and dynamic performance.