Bi-directional grid-tied inverter with predictive current control
Journal
2009 IEEE Energy Conversion Congress and Exposition, ECCE 2009
Pages
916-919
Date Issued
2009
Author(s)
Abstract
The objective of this paper is to propose a bidirectional grid-tied inverter (BGI) with predictive current c0ontrol (PCC). The proposed BGI can be operated either in the grid connection mode (GCM) or the power factor correction mode (PFCM) which are necessary features for the renewable energy supplied DC power system. For the proposed PCC, the duty ratio for the power switch in BGI is determined by the output current and the duty ratio of the previous switching cycle. The proposed PCC will regulate the amplitude and direction of the BGI current as well as the DC bus voltage. In this paper, mathematical expressions of the proposed PCC for both the GCM and PFCM are derived step by step. A 1 kVA BGI for DC power system is built and tested. Experimental results are used to verify the performance of the proposed BGI with PCC. © 2009 IEEE.
Subjects
Bi-directional grid-tied inverter; Grid connection; Power factor correction; Predictive current control
SDGs
Other Subjects
Bi-directional; DC power systems; DC-bus voltages; Duty ratios; Grid connections; Mathematical expressions; Output current; Power factor corrections; Power switches; Predictive current control; Renewable energies; Step-by-step; Switching cycles; AC generator motors; DC generators; Electric current control; Electric power factor; Electric power measurement; Electric power transmission networks; Energy conversion; Power converters; Renewable energy resources; Induction motors
Type
conference paper