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Efficient fault ride-through scheme for three phase voltage source inverter-interfaced distributed generation using DC link adjustable resistive type fault current limiter

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Naderi, SB and Negnevitsky, Michael and Jalilian, Amin and Hagh, Mehrdad Tarafdar (2016) Efficient fault ride-through scheme for three phase voltage source inverter-interfaced distributed generation using DC link adjustable resistive type fault current limiter. Renewable Energy, 92. pp. 484-498. ISSN 09601481

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Abstract

This paper proposes a DC link adjustable resistive type fault current limiter (AR-FCL) based-voltage source inverter (VSI) fault ride-through (FRT) capability improvement, which is new approach of using FCLs. Instead of using three phase FCLs in AC side of the VSI, just one single phase proposed AR-FCL is connected in series with DC side of the VSI. During normal operation, the AR-FCL does not have effect on the VSI performance. When fault happens, the AR-FCL limits AC side fault currents in faulty phases to safe area operation of semiconductor devices of inverter, and does not affect healthy lines. The desired limited fault current value can be achieved by discharging and charging of DC inductor using large resistance, which enters and retreats by turning off and on of the AR-FCL's semiconductor switch, respectively. The VSI does not require to change its control strategy from normal to fault mode operation. Consequently, wind-up and latch-up problems are smoothed. Analytical analysis is provided in each switching interval to highlight effectiveness of the AR-FCL on the VSI fault current limitation. The proposed FRT scheme is validated through both extensive simulation studies in PSCAD/EMTDC environment and three-phase experimental prototype for all symmetrical, asymmetrical, and transient faults.

Item Type: Article
Journal or Publication Title: Renewable Energy
Page Range: pp. 484-498
ISSN: 09601481
Identification Number - DOI: 10.1016/j.renene.2016.02.016
Date Deposited: 26 Apr 2016 23:16
Last Modified: 26 Feb 2017 23:09
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