Open AccessDynamic performance investigation of d – q model with PID controller‐based unified power‐flow controller
Author(s) -
Kasinathan Pounraj,
Vairamani Rajasekaran,
Sundramoorthy Selvaperumal
Publication year - 2013
Publication title -
iet power electronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.637
H-Index - 77
eISSN - 1755-4543
pISSN - 1755-4535
DOI - 10.1049/iet-pel.2012.0551
Subject(s) - unified power flow controller , pid controller , control theory (sociology) , ac power , electric power system , controller (irrigation) , flexible ac transmission system , electric power transmission , power control , static var compensator , transmission line , power (physics) , matlab , transmission (telecommunications) , engineering , control engineering , computer science , voltage , power flow , electrical engineering , control (management) , temperature control , physics , agronomy , quantum mechanics , artificial intelligence , biology , operating system
Reactive power compensation is a main problem in the control of electric power system. Reactive power from the source increases the transmission losses and reduces the power transmission ability of the transmission lines. In addition, reactive power must not be transmitted throughout the transmission line to a longer distance. Consequently, flexible ac transmission systems devices such as static compensator unified power‐flow controller (UPFC) and static volt‐ampere compensator are used to ease these harms. UPFC is the mainly adaptable and composite power electronic equipment that has emerged as the vital equipment for the control and optimisation of power flow in electrical power transmission system. In this study, a d–q model‐based UPFC is developed with proportional‐integral (PI) and PID controller. The above controllers are simulated using MATLAB and their performance is analysed. Outcome of the analysis shows the superiority of PID control over the PI control method. Also this study presents comparative evaluation (both controllers) of dynamic response when initial and final load disturbances.