1. An Adaptive PI Controller Design for DC-Link Voltage Control of Single-Phase Grid-Connected Converters.
- Author
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Merai, Meriem, Naouar, Mohamed Wissem, Slama-Belkhodja, Ilhem, and Monmasson, Eric
- Subjects
ELECTRIC controllers ,CONVERTERS (Electronics) ,ELECTRIC potential ,OSCILLATIONS ,DIRECT currents - Abstract
Conventionally, standard proportional and integral (PI) controllers with constant PI gains are commonly used for the dc-link voltage control of single-phase grid-connected converters (GCCs). For such controllers, the selection of the PI gains will lead to a tradeoff between two control objectives: 1) the reduction of the dc-link voltage fluctuations caused by random swings of the active power drawn by the single-phase GCC; and 2) the reduction of the grid current harmonics mainly caused by the 2f oscillation of the active power in single-phase applications. To solve this tradeoff, this paper presents a systematic approach for the design of an adaptive PI controller for the dc-link voltage control of single-phase GCCs. The proposed design approach is simple and it provides a convenient method to properly determine the adaptive PI controller parameters. Representative simulation and experimental results are presented and discussed in order to show the effectiveness of the proposed dc-link voltage controller. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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