Open AccessNovel adaptive reclosing scheme of MMC‐HVDC transmission lines based on phase synchronization compensation control
Author(s) -
Zhang Jingru,
He Baina,
Cui Rongxi,
He Xingmin,
Dong Yanchen
Publication year - 2022
Publication title -
iet generation, transmission and distribution
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.92
H-Index - 110
eISSN - 1751-8695
pISSN - 1751-8687
DOI - 10.1049/gtd2.12422
Subject(s) - fault (geology) , synchronization (alternating current) , control theory (sociology) , compensation (psychology) , electric power system , computer science , modular design , transient (computer programming) , engineering , overvoltage , electronic engineering , electric power transmission , voltage , power (physics) , topology (electrical circuits) , electrical engineering , control (management) , psychology , physics , quantum mechanics , artificial intelligence , seismology , geology , psychoanalysis , operating system
Abstract Modular multilevel converter based on high voltage director current is important for large‐scale power regional interconnection. Adaptive reclosing is critical to improving the safety and economy of power transmission. The time‐frequency characteristics during fault clearance are analysed by Hilbert transform to suppress over‐voltage or over‐current resulting from short‐circuit fault. A phase synchronization compensation control algorithm is designed based on voltage and current through the virtual network. The rapid suppression of fault overvoltage is achieved by synchronously switching network attributes. Furthermore, the line recovery voltage is introduced into the fault property identification. The proposed adaptive reclosing scheme with high‐speed dynamics can raise the comprehensive benefits of the power system. Studies have verified that phase synchronization compensation control can effectively reduce the impact of oscillation. Moreover, permanent and transient faults can be quickly and reliably discriminated during de‐ionization by multi‐device coordination, which is earlier than the traditional adaptive reclosing scheme. It provides a basis for the fault recovery optimization strategy coordinating with multiple equipment.