Title :
Development of 200kW grid-connected photovoltaic inverter
Author :
Kim, Young Roc ; Ra, Byung Hun ; Moon, Joon Sun ; Shin, Young Chan ; Kim, Seok Ki
Author_Institution :
Hex Power Syst. Co. Ltd., Seoul
Abstract :
This paper presents development of 200 kW grid connected PV inverter. 200 kW Grid connected PV inverter has the utility frequency transformer for the galvanic isolation between DC and AC , and its output is 3-phase 3-wire 60 Hz, 380 V. P&O algorithm is used for the maximum power point tracking (MPPT) and the active frequency drift scheme for the anti islanding protection. The inverter is controlled by 32 bit DSP. This paper explain the performance and test result of utility interface, anti-islanding, efficiency and THD of 200 kW grid connected PV inverter.
Keywords :
PWM invertors; digital signal processing chips; photovoltaic power systems; transformers; DSP chip; anti islanding protection; galvanic isolation; grid-connected photovoltaic inverter; maximum power point tracking; power 200 kW; utility frequency transformer; word length 32 bit; Circuits; Frequency; Galvanizing; Photovoltaic systems; Power generation; Pulse width modulation inverters; Research and development; Solar power generation; Testing; Voltage;
Conference_Titel :
Electrical Machines and Systems, 2007. ICEMS. International Conference on
Conference_Location :
Seoul
Print_ISBN :
978-89-86510-07-2
Electronic_ISBN :
978-89-86510-07-2
