Open AccessCoordinated design of PSS and unified power flow controller using the combination of CWT and Prony methods with the help of SPEA II multi‐objective optimisation algorithm
Author(s) -
Naghshbandy Ali Hesami,
Faraji Ayda
Publication year - 2019
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.2018.6605
Subject(s) - electric power system , control theory (sociology) , controller (irrigation) , matlab , unified power flow controller , flexible ac transmission system , computer science , control engineering , transmission system , stability (learning theory) , engineering , power (physics) , algorithm , power flow , transmission (telecommunications) , control (management) , telecommunications , physics , quantum mechanics , artificial intelligence , machine learning , agronomy , biology , operating system
Since the initial objective of power system stabiliser (PSS) units and flexible AC transmission system (FACTS) devices is the damping of inter‐area and local oscillations, it is very substantial that the network electromechanical oscillatory modes are identified for tuning the controller of large‐scale interconnected power systems. In this research, a method based on the combination of continuous wavelet transform and Prony algorithm is presented to study low‐frequency electromechanical oscillations of the power system. The coordinated design of PSS and FACTS parameters become a multi‐objective optimisation problem that will be solved using the SPEA II. The residue method is used to improve damping and satisfy the controller constraints of the suggested power systems. Finally, the proposed method of mode estimation and controller design is simulated on the two well‐known test case systems, namely IEEE 2‐area 4‐generator and New England‐New York 68‐bus 16‐generator systems using MATLAB software. The results represent accurate performance and validity of the proposed method to improve oscillation damping, dynamic stability of the power systems.