Analysis, design and control of bidirectional charger/discharger

Author

Veerachary, M. ; Gowra, R.N.

Author_Institution

Dept. of Electr. Eng., IIT Delhi, New Delhi, India

fYear

2012

fDate

19-22 Dec. 2012

Firstpage

1

Lastpage

6

Abstract

A 3^rd order bidirectional converter for charger/discharger applications is proposed and then robust controller is designed. The advantages and limitations of the proposed converter are discussed. Through state-space analysis small-signal discrete-time transfer functions are established. Discrete-time modeling and the expressions for small-signal transfer functions of the converter are derived. Based on the discrete-time models controllers for both the modes are designed. Then the robustness of the designed controllers is verified and necessary and sufficient conditions on nominal performance, robust stability and the robust performance conditions are obtained. The robustness of the designed controllers is validated via robust control tool box in matlab and μ-synthesis. Robustness of the designed controllers is also verified through time-domain PSIM simulations and then validated with experimental results.

Keywords

control system synthesis; discrete time systems; power convertors; robust control; state-space methods; time-domain analysis; transfer functions; μ-synthesis; 3rd order bidirectional converter; MATLAB; bidirectional charger-discharger control; robust control tool box; robust performance conditions; robust stability; small-signal discrete-time transfer functions; state-space analysis; time-domain PSIM simulations; Batteries; Mathematical model; Robust stability; Robustness; Transfer functions; Uncertainty; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power India Conference, 2012 IEEE Fifth

Conference_Location

Murthal

Print_ISBN

978-1-4673-0763-5

Type

conf

DOI

10.1109/PowerI.2012.6479563

Filename

6479563