A New Method of Power Arithmetic for Parallel Inverter
AbstractTo overcome the one fundamental cycle delay of the conventional power arithmetic under the load change, a new method of power arithmetic is proposed, which rebuilds the sinusoidal signal only using the last-value and next value of signal in discrete domain. Thus, it is able to fast calculate power value and can obtain the true power value only in one sampling cycle. Moreover, it occupies much smaller DSP space and cuts down computing process, as the sine and cosine tables are cancelled. The high precision of proposed method has validated through comparison with the ideal and simulation values of active, reactive power. Experimental results from a two-75-kVA- inverters system show the proposed method is practicable.
How to Cite
Wang, H., Xie, Y., Pei, X., Kang, Y., & Yue, X. (2010). A New Method of Power Arithmetic for Parallel Inverter. Elektronika Ir Elektrotechnika, 106(10), 3-8. Retrieved from https://eejournal.ktu.lt/index.php/elt/article/view/9106
The copyright for the paper in this journal is retained by the author(s) with the first publication right granted to the journal. The authors agree to the Creative Commons Attribution 4.0 (CC BY 4.0) agreement under which the paper in the Journal is licensed.
By virtue of their appearance in this open access journal, papers are free to use with proper attribution in educational and other non-commercial settings with an acknowledgement of the initial publication in the journal.