A Low Cost Single Microcontroller Implementation for Space Vector Modulated 3∅ to 3∅ Indirect Matrix Converter

Complex control algorithm for indirect matrix converter (IMC) needs powerful processors such as digital signal processors (DSPs) with complex programmable logic device (CPLD) or field programmable gate array (FPGA). The additional hardware circuitry increases cost and decreases reliability of the system. In this paper an implementation of space vector modulation (SVM) is realized for the IMC based on single 16-bit microcontroller only. Elimination of additional circuit increases the reliability of the IMC as control circuit becomes compact. Moreover, for low power applications cost of system gets significantly reduced. The realization of IMC is based on PWM module, timer register and interrupts routine of microcontroller. The burden on CPU is reduced in such realization so that processor can perform complex logic algorithms. The experimental results for IMC feeding power to RL-load prove practical validity of proposed method.