Paper Info
Title
Control and Performance Analysis of a Single-Stage Utility-Scale Grid-Connected PV System
Abstract
For utility-scale photovoltaic (PV) systems, the control objectives, such as maximum power point tracking, synchronization with grid, current control, and harmonic reduction in output current, are realized in single stage for high efficiency and simple power converter topology. This paper considers a high-power three-phase single-stage PV system, which is connected to a distribution network, with a modified control strategy, which includes compensation for grid voltage dip and reactive power injection capability. To regulate the dc-link voltage, a modified voltage controller using feedback linearization scheme with feedforward PV current signal is presented. The real and reactive powers are controlled by using components of the grid current. A small-signal stability/eigenvalue analysis of a grid-connected PV system with the complete linearized model is performed to assess the robustness of the controller and the decoupling character of the grid-connected PV system. The dynamic performance is evaluated on a real-time digital simulator.
Year
DOI
Venue
2017
10.1109/JSYST.2015.2408055
IEEE Systems Journal
Keywords
Field
DocType
DC-link voltage control,feedback linearization (FBL),photovoltaic (PV) systems,reactive power control,small-signal stability analysis,voltage dip
Control theory,Computer science,Control theory,Voltage optimisation,Maximum power point tracking,AC power,Voltage controller,Electronic engineering,Voltage regulation,Photovoltaic system,Feed forward
Journal
Volume
Issue
ISSN
PP
99
1932-8184
Citations 
PageRank 
References 
0
0.34
0
Authors
2
Name
Order
Citations
PageRank
Lal, V.N.100.34
S. N. Singh29913.38