Maximum power tracking in parallel connected converters

Author

Siri, Kaseman ; Caliskan, Vahe A. ; Lee, C.Q.

Author_Institution

Power Electron. Res. Lab., Illinois Univ., Chicago, IL, USA

Volume

29

Issue

3

fYear

1993

fDate

7/1/1993 12:00:00 AM

Firstpage

935

Lastpage

945

Abstract

A control scheme for parallel connected converter systems that will transfer the maximum available power from a nonideal voltage source is presented. Monitoring the rates of change in both the average input current and average input power from the source in each switching period, the proposed control method can dynamically regulate the DC-DC converter system to track the peak power of the source. The amplitude and frequency of the oscillation due to a limit-cycle around the system peak power point is analyzed. In addition, the central-limit current distribution control for the system is incorporated in this control scheme to improve the system efficiency and reliability by uniformly distributing the total peak power among the converters connected in parallel

Keywords

power control; power convertors; power supply circuits; DC-DC converter; amplitude; average input current; average input power; central-limit current distribution control; efficiency; frequency; limit-cycle; maximum power tracking; monitoring; nonideal voltage source; parallel connected converters; reliability; space power supplies; total peak power; Centralized control; Control systems; Current distribution; DC-DC power converters; Frequency; Limit-cycles; Monitoring; Power system reliability; Switching converters; Voltage control;

fLanguage

English

Journal_Title

Aerospace and Electronic Systems, IEEE Transactions on

Publisher

ieee

ISSN

0018-9251

Type

jour

DOI

10.1109/7.220941

Filename

220941