Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- summer
- /
- Pages.1161-1165
- /
- 2004
Digital Control of Utility-Connected PV Inverter
계통 연계형 태양광 발전 인버터의 디지털 제어
- Kim Yong-Kyun (Kyung-Pook National University) ;
- Chol Jong-Woo (Kyung-Pook National University) ;
- Kim Heung-Geun (Kyung-Pook National University)
- Published : 2004.07.14
Abstract
The fundamental digital control of utility-connected PV inverter are presented with detailed analysis and simulation and experimental results. PLL controller using virtual two phase detector, current controller of DC-DC converter, dc link voltage controller and inverter current controller are discussed. The novel PLL controller using virtual two phase detector can detect the information of utility voltage instantaneously and is not sensitive to the noise. Current controller of DC-DC converter, dc link voltage controller and inverter current controller are the conventional methods. We have constructed utility-Connected PV Inverter and applied to those controllers. The simulation and experimental results demonstrate an excellent performance in the single-phase grid-connected operation.
Keywords