Title
Control of LPV Modeled AC-Microgrid Based on Mixed H-2/H-infinity Time-Varying Linear State Feedback and Robust Predictive Algorithm
Abstract
Y This paper presents a robust model predictive control (RMPC) method with a new mixed H2/H 1 linear time-varying state feedback design. In addition, we propose a linear parameter-varying model for inverters in a microgrid (MG), in which disturbances and uncertainty are considered, where the inverters connect in parallel to renewable energy sources (RES). The proposed RMPC can use the gain-scheduled control law and satisfy both the H2 and H infinity proficiency requirements under various conditions, such as disturbance and load variation. A multistep control method is proposed to reduce the conservativeness caused by the unique feedback control law, enhance the control proficiency, and strengthen the RMPC feasible area. Furthermore, a practical and efficient RMPC is designed to reduce the online computational burden. The presented controller can implement load sharing among distributed generators (DGs) to stabilize the frequency and voltage of an entire smart island. The proposed strategy is implemented and studied in a MG with twoDGtypes and various load types. Specifically, through converters, one type of DGs is used to control frequency and voltage, and the other type is used to control current. These two types of DGs operate in a parallel mode. Simulation results show that the proposed RMPCs are input-to-state practically stable (ISpS). Compared with other controllers in the literature, the proposed strategy can lead to minor total harmonic distortion (THD), lower steady-state error, and faster response to system disturbance and load variation.
Year
DOI
Venue
2022
10.1109/ACCESS.2021.3139341
IEEE ACCESS
Keywords
DocType
Volume
Microgrid, linear parameter varying system, distributed generation unit, H-2/H-infinity control, robust model predictive control
Journal
10
ISSN
Citations 
PageRank 
2169-3536
0
0.34
References 
Authors
0
7
Name
Order
Citations
PageRank
Moslem Dehghani100.34
Mohammad Ghiasi200.34
Taher Niknam300.34
Kumars Rouzbehi400.34
Zhanle Wang500.68
Pierluigi Siano600.34
Hassan Haes Alhelou7813.42