IMPLEMENTATION AND HARMONIC ANALYSIS OF DQ-CONTROL ON A GRID-TIED SINGLE PHASE INVERTER FOR PHOTOVOLTAIC SYSTEMS IN A DISTRIBUTION NETWORK

Search for this publication on Google Scholar
Bisht, R. (2016). IMPLEMENTATION AND HARMONIC ANALYSIS OF DQ-CONTROL ON A GRID-TIED SINGLE PHASE INVERTER FOR PHOTOVOLTAIC SYSTEMS IN A DISTRIBUTION NETWORK. Unc Charlotte Electronic Theses And Dissertations.
Download PDF

Analytics

161 views ◎
124 downloads ⇓


Abstract

The electrical utilities are very much concerned about the power quality due to the presence of nonlinear loads in their power distribution systems. The non-linear residential loads cause harmonics in the residential distribution systems. To mitigate the harmonics, active or passive filters are normally used. Past decade has seen a rise in the installation of DGs in residential areas. Especially renewable energy based DG’s such as Photovoltaic (PV). In this thesis we focus on an existing model of a distribution network present in Netherlands (Vernormeer 4), and discuss the impact of harmonics on the system and how we can mitigate these harmonics by using active filtering methods. The passive filters utilize the passive components such as Inductors, resistors and capacitors and the active power filters utilize the power electronic switches for the harmonic compensation. The active filters are advantageous than the passive filters because it can eliminate focused or a wide range of harmonics in the system where as passive filters compensate specific order harmonics. The example for the active filter is the inverter, in which the controlled switching of the inverter compensates the harmonics in the specified system. Traditional methods of control on the inverter are still a cushion most of the manufacturers fall back on, but these types of inverters have major issues. They utilize the voltage supply for the reference wave generation and synchronization which in itself might be polluted and hence polluting the injected current into the grid. We implement a dq-control methodology on the inverter, which has been a focal point for researchers nowadays on inverter control. In this thesis, we jump into the dq-control architecture and see how it performs on the grid-connected mode and investigate the harmonic problems that are existent in almost every distribution network. We also try providing a framework for future research on mitigation and further analysis on several power quality problems.

Details
Author

Bisht, Robin

Title

IMPLEMENTATION AND HARMONIC ANALYSIS OF DQ-CONTROL ON A GRID-TIED SINGLE PHASE INVERTER FOR PHOTOVOLTAIC SYSTEMS IN A DISTRIBUTION NETWORK

Physical Description

1 online resource (86 pages) : PDF

Date

2016

Degree Granting Institution

University of North Carolina at Charlotte

Abstract

The electrical utilities are very much concerned about the power quality due to the presence of nonlinear loads in their power distribution systems. The non-linear residential loads cause harmonics in the residential distribution systems. To mitigate the harmonics, active or passive filters are normally used. Past decade has seen a rise in the installation of DGs in residential areas. Especially renewable energy based DG’s such as Photovoltaic (PV). In this thesis we focus on an existing model of a distribution network present in Netherlands (Vernormeer 4), and discuss the impact of harmonics on the system and how we can mitigate these harmonics by using active filtering methods. The passive filters utilize the passive components such as Inductors, resistors and capacitors and the active power filters utilize the power electronic switches for the harmonic compensation. The active filters are advantageous than the passive filters because it can eliminate focused or a wide range of harmonics in the system where as passive filters compensate specific order harmonics. The example for the active filter is the inverter, in which the controlled switching of the inverter compensates the harmonics in the specified system. Traditional methods of control on the inverter are still a cushion most of the manufacturers fall back on, but these types of inverters have major issues. They utilize the voltage supply for the reference wave generation and synchronization which in itself might be polluted and hence polluting the injected current into the grid. We implement a dq-control methodology on the inverter, which has been a focal point for researchers nowadays on inverter control. In this thesis, we jump into the dq-control architecture and see how it performs on the grid-connected mode and investigate the harmonic problems that are existent in almost every distribution network. We also try providing a framework for future research on mitigation and further analysis on several power quality problems.

Genre

masters theses

Subjects--Topics

Electrical engineering

Degree

M.S.

Keywords

DQ-Control on Single Phase Inverters
Harmonics
Power Systems

Subject Area

Electrical Engineering

Advisor(s)

Kamalasadan, Dr. Sukumar

Committee Members

Ebong, Dr. Abasifreke
Noras, Dr. Maciej

Degree Note

Thesis (M.S.)--University of North Carolina at Charlotte, 2016.

Rights Statement

This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s). For additional information, see http://rightsstatements.org/page/InC/1.0/.

Rights Holder Information

Copyright is held by the author unless otherwise indicated.

Identifier

Bisht_uncc_0694N_11204

Permalink

http://hdl.handle.net/20.500.13093/etd:245