WSEAS Transactions on Systems and Control
Print ISSN: 1991-8763, E-ISSN: 2224-2856
Volume 11, 2016
Research Reactive Current Detection Method for STATCOM Under Grid-Side Asymmetrical Faults
Authors: , ,
Abstract: To aim at the deficiencies of traditional dii− q detection method of reactive current of STATCOM that will generate detecting error under grid-side asymmetrical faults. As being in asymmetrical voltage condition, there will have a phase angle difference existing used to calculate the value of the compensation commending current between the detected voltage and its positive sequence voltage. To solve the issue, a revised detection method is proposed which can offer an auxiliary phase difference α between positive sequence voltage and -axis, which offsets the detected errors, such that the control accuracy of STATCOM is improved, which is quite significant for safe operation of the wind power plant grid-connected. The simulation results show that the proposed method is effective and feasible.
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Pages: 318-326
WSEAS Transactions on Systems and Control, ISSN / E-ISSN: 1991-8763 / 2224-2856, Volume 11, 2016, Art. #34