D-STATCOM Predictive Direct Power Control Research Under Unbalanced Voltage of Power System

DOI

10.2991/icca-16.2016.17How to use a DOI?

Keywords

Predictive direct power control, Instantaneous power pulsation, Harmonic total distortion rate, Instantaneous symmetry components

Abstract

Predictive direct power control strategy is led into the research of distribution network D-STATCOM. When the grid voltage is asymmetrical, the 2 times frequency instantaneous power pulsation of PPC will cause D-STATCOM output current total harmonic distortion rate higher. After analyzing the relationship of voltage and harmonic content rate, a method is posed. In the method, the instantaneous power feedback value can be calculated through the sample positive sequence components extracted by the instantaneous symmetrical components. Then a power predictive model can be deduced according to the positive sequence equivalent circuit. The positive sequence power substituted the full power control to achieve the control of compensation current amplitude and phase. The method can eliminate the device overflow threat and ensure output current three-phase symmetry. According to the simulation and experimental results, the method is feasible and practical.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Tianyi Qu
AU  - Hao Peng
PY  - 2016/01
DA  - 2016/01
TI  - D-STATCOM Predictive Direct Power Control Research Under Unbalanced Voltage of Power System
BT  - Proceedings of the 2016 International Conference on Intelligent Control and Computer Application
PB  - Atlantis Press
SP  - 72
EP  - 75
SN  - 2352-538X
UR  - https://doi.org/10.2991/icca-16.2016.17
DO  - 10.2991/icca-16.2016.17
ID  - Qu2016/01
ER  -