Open AccessTransient Performance Analysis of Reactive Power Compensators at LCC-HVDC Station Feeding Weak AC System
Author(s) -
Atiq Ur Rehman,
Mehreen Gul,
Talha Mir,
Syed Mudassir Hussain,
Zahid Rauf
Publication year - 2021
Publication title -
mehran university research journal of engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.105
H-Index - 18
eISSN - 2413-7219
pISSN - 0254-7821
DOI - 10.22581/muet1982.2104.12
Subject(s) - ac power , overvoltage , transient (computer programming) , commutation , load rejection , fault (geology) , compensation (psychology) , control theory (sociology) , capacitor , engineering , electric power system , power (physics) , voltage , computer science , electrical engineering , control (management) , physics , mechanical engineering , psychology , turbine , quantum mechanics , artificial intelligence , seismology , geology , psychoanalysis , operating system
This paper focuses on analyzing the dynamic performance of various reactive power compensators at weak LCC-HVDC terminals. Four scenarios based on combination of active and passive reactive power compensation schemes are presented. The comparative performance analysis of various compensators in different types of AC and DC system faults are evaluated using electromagnetic transient simulation program PSCAD/EMTDC. The analysis shows that fixed capacitor has poor performance and results in reducing effective short circuit ratio of system, while STATCOM on the other hand, increases AC system strength and has significant performance in areas like immunity to commutation failure, suppression of temporary overvoltage, AC bus voltage regulation and fault recovery time.