Research on Repetitive Control Strategy of Photovoltaic Grid-Connected Inverter

Abstract:

The photovoltaic grid-connected inverter is the most important device of photovoltaic generation which is a widely adopted application of solar energy. Its control strategy determines the working status and performance of the photovoltaic generation system. Repetitive control strategy of the photovoltaic grid-connected inverter is analyzed in this paper. The method based on repetitive control and pole assignment is also presented to solve the one-cycle-lag disadvantage of repetitive control, and the simulation model in Matlab/Simulink is established. The simulation results show that the dynamic performance of grid-connected inverter is improved and the waveform deviation rate is reduced effectively with the help of pole assignment.

• Periodical: Advanced Materials Research (Volume 933)
• Pages: 510-515
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.933.510
• Online since: May 2014
• Authors: Cheng Long Hao*, Li Li Xie, Xu Li, Tan Wang, Jing Zhang
• Keywords: Frequency Characteristic, Photovoltaic Grid-Connected Inverter, Pole Assignment, Repetitive Control

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