Online Selective Harmonic Compensation and Power Generation With Distributed Energy Resources

Author

Ahmadi, Danial ; Jin Wang

Author_Institution

Ohio State Univ., Columbus, OH, USA

Volume

29

Issue

7

fYear

2014

fDate

Jul-14

Firstpage

3738

Lastpage

3747

Abstract

Distributed energy resources (DERs) are expected to provide ancillary functions including reactive power generation and harmonics compensation. Meanwhile, multilevel inverters and two-level converters with optimal pulsewidth modulation (OPWM) will be commonly used for DERs at high power levels. The challenge is to realize harmonic compensation with limited switching angles. This paper presents an online solution to realize the selective harmonics compensation (SHC), and power generation with DERs. For harmonics compensation, the selective harmonic components in the load current are detected. Then, the harmonic voltages are provided with DERs to cancel out these detected components. Since the power converter is requested to realize both harmonics filtering and power generation, limitations on harmonics compensation at the given power are discussed. Power hardware-in-the-loop-based online verifications are shown at the end of the paper.

Keywords

PWM invertors; PWM power convertors; distributed power generation; energy resources; power harmonic filters; reactive power; switching convertors; DER; OPWM; ancillary functions; distributed energy resource; hardware-in-the-loop-based online verifications; harmonic voltage; harmonics filtering; limited switching angles; load current; multilevel inverter; online selective harmonic compensation; optimal pulsewidth modulation; power converter; power generation; reactive power generation; selective harmonic components; two level converter; Equations; Harmonic analysis; Inverters; Mathematical model; Power harmonic filters; Switches; Active power filter; distributed energy resources (DERs); equal area criteria; harmonics injection; online calculation; optimal pulsewidth modulation (OPWM); power hardware in the loop; selective harmonics compensation (SHC);

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/TPEL.2013.2278253

Filename

6581885