Analysis of differences between series and parallel connection of cascaded converters for PV power generation system

Author

Kim, Sang-Yong ; Kim, Namwon ; Lee, Hyo-Guen ; Hwang, Chulsang ; Kim, Gyeong-Hun ; Seo, Hyo-Ryong ; Park, Minwon ; Yu, In-Keun

Author_Institution

Dept. of Electr. Eng., Changwon Nat. Univ., Changwon, South Korea

fYear

2010

fDate

10-13 Oct. 2010

Firstpage

628

Lastpage

632

Abstract

Converter per photovoltaic module (CPM) system has been researched to increase the efficiency of photovoltaic (PV) power generation system. The stability and efficiency of PV system might be different according to the connection structure of CPMs. Differences between series and parallel connection of CPMs for PV power generation system were analyzed in this paper. Boost type CPM was used to control maximum power of each PV module. CPMs were connected in series, parallel and series-parallel to compare the PV output power according to the different converter connections. The simulation results obtained by PSCAD/EMTDC prove that the parallel connected CPMs provide better operational characteristics than the series connected CPMs.

Keywords

photovoltaic power systems; power convertors; cascaded converter; converter connection; converter per photovoltaic module system; photovoltaic power generation system; Converters; Inverters; Photovoltaic systems; Switches; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems (ICEMS), 2010 International Conference on

Conference_Location

Incheon

Print_ISBN

978-1-4244-7720-3

Type

conf

Filename

5664304