Open AccessInnovative calculation method of inductive reactive compensation capacity based on optimum injection current
Author(s) -
Zhang Zhanlong,
Dan Yihua,
Jiang Chilong,
Chen Yue,
He Hongpeng
Publication year - 2017
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/iet-gtd.2016.2129
Subject(s) - susceptance , ac power , control theory (sociology) , overcurrent , transformer , compensation (psychology) , capacitive sensing , voltage , distribution transformer , engineering , computer science , electronic engineering , electrical engineering , control (management) , psychology , artificial intelligence , psychoanalysis
An innovative method based on optimal injection current is introduced to calculate reactive compensation capacity during unbalanced three‐phase distribution transformer operation. This method offers a new process that governs the three‐phase unbalanced distribution transformers compared with susceptance compensation and calculates the operation capacity of the reactive power compensation electric control equipment through reverse thinking. Compensation effect is further optimised by adding reasonable restrictive conditions and neglecting inductive compensation combined with practical electrical engineering computing. This study presents the calculation method of optimal injection current with pure capacitive reactive power control along with its basic principles, algorithm implementation, and practical analysis. Results show that calculation based on optimal injection current avoids the overcompensation and overcurrent of susceptance compensation while improving the governance of the unbalanced three‐phase distribution transformer effect.