Title :
Efficient Single-Phase Harmonics Elimination Method for Microgrid Operations
Author :
Anwar, Saeed ; Elrayyah, Ali ; Sozer, Yilmaz
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Akron, Akron, OH, USA
Abstract :
A strategy to eliminate harmonics from the grid current as the voltage of the point of common coupling (PCC) for microgrid applications is presented in this paper. The position of the harmonics reduction unit is selected so that it can reduce the harmonics level of the grid current and PCC voltage harmonics irrespective of the placements of the renewable energy sources in the microgrid. The proposed compensation system can be operated in both grid-connected and islanded operations of the microgrid system without changing any configuration. In the proposed control algorithm, the required amount of attenuation for harmonics is determined to meet the total harmonic distortion requirement specified by IEEE 519. Fast and efficient algorithm for phase detection irrespective of the presence of harmonics has been utilized for the system. The effectiveness of proposed method is verified by simulation and experimental results.
Keywords :
distributed power generation; harmonic distortion; harmonics suppression; power supply quality; PCC voltage harmonics; grid current; grid-connected operations; harmonics level; harmonics reduction unit; islanded operations; microgrid applications; phase detection; point of common coupling; renewable energy sources; total harmonic distortion requirement; Algorithm design and analysis; Estimation; Harmonic analysis; Impedance; Microgrids; Phase locked loops; Power harmonic filters; Adaptive compensation; distributed renewable energy sources; grid-connected microgrid; harmonics; power quality; standalone microgrid;
Journal_Title :
Industry Applications, IEEE Transactions on
DOI :
10.1109/TIA.2014.2387472
