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

Autor: Kyung-Min Kang, Jung-Hyo Lee, Chung-Yuen Won, Seung-Wook Hyun, Seok-Jin Hong
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Energies
Volume 11
Issue 6
Energies, Vol 11, Iss 6, p 1468 (2018)
ISSN: 1996-1073
DOI: 10.3390/en11061468
Popis: 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.
Databáze: OpenAIRE