Wang, Zuo;
Yan, Yunda;
Yang, Jun;
Li, Shihua;
Li, Qi;
(2019)
Robust Voltage Regulation of a DC-AC Inverter With Load Variations via a HDOBC Approach.
IEEE Transactions on Circuits and Systems II: Express Briefs
, 66
(7)
pp. 1172-1176.
10.1109/TCSII.2018.2872330.
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Abstract
In this brief, a harmonic disturbance observer (HDOB) based control approach is proposed for the robust voltage regulation design of a dc-ac inverter system. In distributed generation systems, wide range of load variations and effects of nonlinear loads result in significant degradations of control performance. Moreover, the loads, as the mismatched disturbances, impose adverse influences on the inverter system via a channel different from the control input. Toward that end, an HDOB is proposed to estimate the periodic load disturbances. By constructing new disturbance compensation gains, the effects of the mismatched periodic disturbances are removed from the output voltage channel. Rigorous stability analysis for the closed-loop system is presented. Experimental results are explored to illustrate the feasibility and capacity of the proposed control scheme.
| Type: | Article |
|---|---|
| Title: | Robust Voltage Regulation of a DC-AC Inverter With Load Variations via a HDOBC Approach |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/TCSII.2018.2872330 |
| Publisher version: | http://dx.doi.org/10.1109/tcsii.2018.2872330 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Science & Technology, Technology, Engineering, Electrical & Electronic, Engineering, Periodic load disturbances, harmonic disturbance observer, DC-AC inverter systems, mismatched disturbance rejection |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Computer Science |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10192301 |
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