A comparative study on implementation methods of PWM controller in small scale solar energy system

소용량 태양광발전용 PWM제어기의 하드웨어 구현방식 비교

  • 이흥주 (상명대학교 컴퓨터시스템공학과) ;
  • 이준하 (상명대학교 컴퓨터시스템공학과)
  • Published : 2006.10.31


In this study, we designed a digital fuzzy logic controller based on FPGA and microprocessor for MPPT of the solar power generation system. A fuzzy algorithm to control the power tracking function of a boost converter has been built into the FPGA, and applied to the small scaled solar power generation system. The embodied controller showed a stable operation characteristic with the small output voltage ripple for the intensity change of solar radiation. This result proves that the implementation of the power tracking controller using FPGA is an effective way compared to the existing one using microprocessors.