The Research Of Digital SPWM Inverter And Its Fuzzy Control

On the bases of detailing the control theory and circuit of DC-AC converter, this paper introduces the fuzzy logic theory into the control of the digital PWM converter. In order to realize the control strategy, Intel high performance micro controller 80C196KC,the kernel of the intelligent controller are purposed. First, programming to calculate the fuzzy control table, then analyses the harmonic of the area equivalent algorithm and the approximate area equivalent.With the MATLAB simulating tool and Visual Basic language, the designed system is simulated, and the result is given. During the design of circuit of hardware of the control system, considering the symmetry of sine wave, the amount of data storage is reduced. The simulation results show that the control system has high robust and stability. Xia Shangxue(Power System and Its Automation)Directed by Prof. Tian Jianshe...