Multi-objective optimal compensation of a multi-functional grid-connected inverter for power quality enhancement

Author

Chong Cheng ; Zheng Zeng ; Huan Yang ; Rongxiang Zhao

Author_Institution

Coll. of Electr. Eng., Zhejiang Univ., Hangzhou, China

fYear

2012

fDate

21-24 Oct. 2012

Firstpage

1

Lastpage

6

Abstract

A novel multi-functional grid-connected inverter (MFGCI) is presented in this paper, which can enhance power quality at the point of common coupling (PCC), compensating the unbalanced, harmonic and reactive current simultaneously. To achieve comprehensive compensation, comprehensive indicators of power quality are proposed and a multi-objective optimal mathematical model is built with some constraints. Furthermore, the algorithms to calculate the reference current and to solve the multi-objective optimal compensation are proposed. In addition, the validity and effectiveness of the MFGCI utilized to customized power quality at PCC and its multi-objective optimal compensation is verified by the simulation results of PSCAD/EMTDC.

Keywords

invertors; optimisation; power grids; power supply quality; MFGCI; PCC; PSCAD-EMTDC; harmonic current; multifunctional grid-connected inverter; multiobjective optimal compensation; multiobjective optimal mathematical model; point of common coupling; power quality enhancement; reactive current; Harmonic analysis; Indexes; Inverters; Power harmonic filters; Power quality; Reactive power; Pareto optimal solution; compensative capacity; multi-functional grid-connected inverter; multi-objective optimal compensation; power quality comprehensive evaluation;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems (ICEMS), 2012 15th International Conference on

Conference_Location

Sapporo

Print_ISBN

978-1-4673-2327-7

Type

conf

Filename

6401776