Modularized bi-directional grid-tied inverter with asynchronous sigma-delta modulation
Journal
2010 IEEE Energy Conversion Congress and Exposition, ECCE 2010
Pages
31-36
Date Issued
2010
Author(s)
Chang, C.-H.
Abstract
The objective of this paper is to propose a modularized bi-directional grid-tied inverter (BGI) with asynchronous sigma-delta modulation (ASDM) control for the renewable energy (RE)-supplied DC power system. The proposed BGI can be operated either in the grid-tied mode (GTM) or the power factor correction mode (PFCM) which is necessary features for the RE-supplied DC power system. The proposed BGI with ASDM control scheme has the merits of circuit simplicity, quick response, and low electromagnetic interference. Moreover, the proposed BGI has redundant central controller which can increase the system reliability. The major contribution of this paper includes that developing the modularized BGI with ASDM control scheme for GTM and PFCM operations thoroughly and applying it to the RE-supplied DC power system successfully. In this paper, the mathematical equations of the proposed BGI with ASDM will be derived. Computer simulations and hardware experiments are shown to verify the performance of the proposed modularized BGI with ASDM control. © 2010 IEEE.
Subjects
Asynchronous sigma-delta modulation; Bi-directional grid-tied inverter; Modularity; Power factor correction; Renewable energy-supplied DC power system
SDGs
Other Subjects
Bi-directional; Modularity; Power factor corrections; Renewable energies; Sigma delta modulation; Computer hardware; Computer simulation; DC power transmission; Electric power factor; Electromagnetic pulse; Energy conversion; Modulation; Modulators; Renewable energy resources; Delta sigma modulation
Type
conference paper