Dynamics Enhancement for Power Synchronization Control with Asymmetric AC Voltage Controller in Strong Grids

Part of ISBN 9798350335446QC 20231101
Power synchronization control (PSC) is designed for weak grid connections originally and its performance is weakened when connected to a strong grid. In this paper, an asymmetric AC voltage controller (AVC) is proposed to improve the performance of PSC in strong grids. The improvement is achieved by adding a coupling from d-axis to q-axis to the voltage control part. The effect of this d-to-q coupling is explained by small signal modeling. It is found that the asymmetric AVC gives an effective improvement in damping the low-frequency oscillation and stability robustness against the grid strengths. Theoretical analysis and experiments verify the effectiveness of the proposed asymmetric AVC.

Zhao, LiangAalborg University, Dept. of Energy Technology, Aalborg, Denmark (författare)
Harnefors, LennartABB Corporate Research, Västerås, Sweden (författare)
Kukkola, JarnoABB Oy Drives, Helsinki, Finland (författare)
Routimo, MikkoABB Oy Drives, Helsinki, Finland (författare)
Wang, XiongfeiKTH,Elkraftteknik(Swepub:kth)u1luysv3 (författare)
KTHElkraftteknik (creator_code:org_t)

Ingår i:2023 IEEE Conference on Control Technology and Applications, CCTA 2023: Institute of Electrical and Electronics Engineers (IEEE), s. 1066-1070

Av författaren/redakt...: Chen, Feifan; Zhao, Liang; Harnefors, Lenna ...; Kukkola, Jarno; Routimo, Mikko; Wang, Xiongfei

Om ämnet

TEKNIK OCH TEKNOLOGIER: TEKNIK OCH TEKNO ...; och Elektroteknik oc ...; och Reglerteknik

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