Development of Frequency Variable Inverter Based on SOPC and Nios II
Based on the technology of system on a programmable chip (SOPC), a frequency variable inverter is developed and implemented, and the field-programmable gate array (FPGA) in the series of Cyclone III manufactured by Altera Co. is utilized. By the simulation tool Matlab/Simulink, the proposed inverter is simulated. In addition, an experimental platform, by which the frequency of inverter's output voltage can be continuously regulated within the range from 5 Hz to 50 Hz, is constructed, and thus the effectiveness and feasibility of the frequency variable inverter system are verified.