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Direct integration of battery energy storage systems in distributed power generation
journal contribution
posted on 2023-05-18, 11:04 authored by Shantha Jayasinghe Arachchillage, Vilathgamuwa, DM, Madawala, UKIn this paper, a wind energy conversion system interfaced to the grid using a dual inverter is proposed. One of the two inverters in the dual inverter is connected to the rectified output of the wind generator while the other is directly connected to a battery energy storage system (BESS). This approach eliminates the need for an additional dc–dc converter and thus reduces power losses, cost, and complexity. The main issue with this scheme is uncorrelated dynamic changes in dc-link voltages that results in unevenly distributed space vectors. A detailed analysis on the effects of these variations is presented in this paper. Furthermore, a modified modulation technique is proposed to produce undistorted currents even in the presence of unevenly distributed and dynamically changing space vectors. An analysis on the battery charging/discharging process and maximum power point tracking of the wind turbine generator is also presented. Simulation and experimental results are presented to verify the efficacy of the proposed modulation technique and battery charging/discharging process.
History
Publication title
IEEE Transactions on Energy ConversionVolume
26Pagination
677-685ISSN
0885-8969Department/School
Australian Maritime CollegePublisher
Ieee-Inst Electrical Electronics Engineers IncPlace of publication
445 Hoes Lane, Piscataway, USA, Nj, 08855Rights statement
Copyright 2011 IEEERepository Status
- Restricted