系統連系 分散電源에 사용되는 새로운 太陽光 發電用 파워 컨디셔너의 開發

Abstract

This study, respectively In particular, in the power conditioner is known for solar power generation, the positive terminal of the input voltage source relates to a power conditioner for solar power generation using a sinusoidal pulse width modulation step-up chopper step-up chopper connected in series to each other by-pass diodes and the installation of the first and second auxiliary diode and a snubber capacitor and a resonant inductor connected in series to each other mutually series-connected step-up chopper diode installed and the step-up chopper switching element connected between the two power supply lines and at the same time. The installation and the inductor for storing energy in the step-up between the common connection point of the bypass diode and the input voltage source and the step-up chopper diode to the common connection point of the booster chopper switching element. addition, a resonant capacitor installed between the step-up chopper diode and a point of connection of the booster chopper switching element cavity and a first auxiliary diode to the common connection point of the second auxiliary diode and the step-up chopper diode and a point of connection of the booster chopper switching element and the cavity resonant snubber inductor a third auxiliary diode connected between a common connection point of the capacitor, and is characterized in that the two power supply is configured by installing in parallel with the DC link capacitor bus line between the supply lines. Further, the switching loss can be suppressed, and also have a power conditioner itself could seek miniaturization and weight reduction by using the common capacitor of the non-polar electrolytic capacitor having a non-polar capacitor as a DC link bus lines, as well as extending the life of the circuit a further improving the reliability for the power conditioner according to the solar power to operate it is possible to reduce significantly the loss there.