Modeling and optimal controllers design for a stand-alone photovoltaic-diesel generating unit

Author

Abdin, E.S. ; Osheiba, A.M. ; Khater, M.M.

Author_Institution

Dept. of Electr. Eng., Menoufia Univ., Egypt

Volume

14

Issue

3

fYear

1999

fDate

9/1/1999 12:00:00 AM

Firstpage

560

Lastpage

565

Abstract

This paper presents the dynamic modeling and optimal controllers design for a stand-alone photovoltaic-diesel generating unit. To limit the continual variation on load-bus voltage and frequency and to extract the maximum power from the photovoltaic generator, two optimal PI controllers are designed based on state and output feedback techniques. The dynamic behaviour of the closed-loop system following common disturbances such as load changes, insolation variation due to clouds and three phase short circuit is investigated. The simulation results show the capability of the closed-loop system for limiting the load-bus voltage and frequency variations within acceptable levels and extracting the maximum power from the PV generator under insolation variation can be realized

Keywords

closed loop systems; control system synthesis; diesel-electric generators; optimal control; photovoltaic power systems; power generation control; short-circuit currents; state feedback; two-term control; closed-loop system; dynamic modeling; insolation variation; load-bus frequency; load-bus voltage; maximum power extraction; optimal PI controllers; optimal controllers design; output feedback technique; stand-alone photovoltaic-diesel generating unit; state feedback technique; three phase short circuit; Circuits; Clouds; Frequency; Optimal control; Output feedback; Photovoltaic systems; Power generation; Power system modeling; Solar power generation; Voltage control;

fLanguage

English

Journal_Title

Energy Conversion, IEEE Transactions on

Publisher

ieee

ISSN

0885-8969

Type

jour

DOI

10.1109/60.790914

Filename

790914