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Energies 2018, 11(6), 1468; https://doi.org/10.3390/en11061468

Improvement of Transient State Response through Feedforward Compensation Method of AC/DC Power Conversion System (PCS) Based on Space Vector Pulse Width Modulation (SVPWM)

1
Information and Communication Engineering, Sungkyunkwan University, Suwon 16419, Korea
2
Department of Electrical Engineering, Kunsan National University, Gunsan, Jeollabuk-do 54150, Korea
*
Author to whom correspondence should be addressed.
Received: 30 April 2018 / Revised: 1 June 2018 / Accepted: 3 June 2018 / Published: 6 June 2018
(This article belongs to the Special Issue Power Electronics 2018)
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Abstract

In a DC distribution system configured by AC/DC power conversion system (PCS), the voltage control performance of the AC/DC PCS determines the stability and reliability of the DC distribution grid. The DC voltage of grid is maintained by capacitor, thus transient voltage is an inevitable problem when a grid is connected with a high amount of load or renewable energy. Space vector pulse width modulation (SVPWM) is well known as a stable modulation method and is used in AC/DC PCS and many types of topologies, but a solution for the transient states issue of DC link has not clearly been studied. In this paper, a feedforward compensation method based on the mathematical model of SVPWM is proposed to solve the transient state problem in a DC distribution system. The proposed method is verified by simulation and experiment. AC/DC PCS with the proposed feedforward compensation method has more robust DC voltage control characteristics. View Full-Text
Keywords: feedforward compensation; space vector pulse width modulation (SVPWM); robust DC grid; DC distribution; transient state response; improved response feedforward compensation; space vector pulse width modulation (SVPWM); robust DC grid; DC distribution; transient state response; improved response
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Hong, S.-J.; Hyun, S.-W.; Kang, K.-M.; Lee, J.-H.; Won, C.-Y. Improvement of Transient State Response through Feedforward Compensation Method of AC/DC Power Conversion System (PCS) Based on Space Vector Pulse Width Modulation (SVPWM). Energies 2018, 11, 1468.

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