Paper Info
Title
Contribution of PV generators with energy storage to grid frequency and voltage regulation via nonlinear control techniques
Abstract
This paper proposes a nonlinear control strategy for a hybrid PV-battery system insuring frequency and voltage support of the power system. The hybrid system includes a PV panel and battery connected to three-phase DC-AC inverter via DC-DC boost converter and bidirectional DC-DC boost converter. A synchronous generator represents the power grid. The voltage regulators control DC-DC boost converter and DC-AC inverter while the frequency regulator controls the bidirectional DC-DC boost converter. A conventional MPPT is used to adjust the reference for nonlinear PV voltage regulator. The voltage regulator is designed based on multi-input multi-output exact feedback linearization technique. It consists of a module that uses the terminal voltage deviation to generate q-axis voltage component. A module that maintains the DC-link voltage is also added to generate d-axis voltage component as well. The proposed frequency regulator includes a module that changes the reference signal of a battery current control module when the frequency deviation is significant. The battery current regulator is designed based on partial input-output feedback linearization strategy. The proposed control system is evaluated in simulation. The results reveal that with the proposed control scheme, the PV-battery generator reacts like a conventional synchronous generator when the grid frequency changes considerably.
Year
DOI
Venue
2013
10.1109/IECON.2013.6699109
Vienna
Keywords
Field
DocType
dc-dc power convertors,mimo systems,battery management systems,electric current control,invertors,linearisation techniques,nonlinear control systems,photovoltaic power systems,power grids,synchronous generators,voltage control,dc-ac inverter,mppt,pv generators,pv panel,battery current control module,bidirectional dc-dc boost converter,energy storage,frequency deviation,frequency regulator,grid frequency,hybrid pv-battery system,multiinput multioutput exact feedback linearization technique,nonlinear pv voltage regulator,nonlinear control techniques,partial input-output feedback linearization strategy,power grid,q-axis voltage component,synchronous generator,three-phase dc-ac inverter,voltage regulators control dc-dc boost converter,nonlinear control,battery,converter,frequency,grid connected pv,voltage
Boost converter,Grid-connected photovoltaic power system,Control theory,Forward converter,Control engineering,Voltage regulation,Frequency grid,Engineering,Low-dropout regulator,Voltage regulator,Dropout voltage
Conference
ISSN
Citations 
PageRank 
1553-572X
2
0.40
References 
Authors
0
3
Name
Order
Citations
PageRank
Taheri, H.140.88
Ouassima Akhrif2468.66
Okou, A.F.332.84