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

fYear

2007

fDate

8-11 Oct. 2007

Firstpage

343

Lastpage

345

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;

fLanguage

English

Publisher

ieee

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

Type

conf

Filename

4412253