scholarly journals Coordinated 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

2019 ◽  
Vol 13 (21) ◽  
pp. 4900-4909 ◽  
Author(s):  
Ali Hesami Naghshbandy ◽  
Ayda Faraji
Keyword(s):  
Power Flow ◽  
Unified Power Flow Controller ◽  
Multi Objective ◽  
Optimisation Algorithm ◽  
Flow Controller ◽  
Power Flow Controller

scholarly journals Multi-objective optimal reactive power dispatch to maximize power system social welfare in the presence of generalized unified power flow controller

2015 ◽  
Vol 64 (3) ◽  
pp. 405-426 ◽  
Author(s):  
Chintalapudi Venkata Suresh ◽  
Sirigiri Sivangaraju
Keyword(s):  
Social Welfare ◽  
Power Flow ◽  
Optimization Problem ◽  
Reactive Power ◽  
Unified Power Flow Controller ◽  
Power Losses ◽  
Multi Objective ◽  
The Social ◽  
Flow Controller ◽  
Power Flow Controller

Abstract In this paper a novel non-linear optimization problem is formulated to maximize the social welfare in restructured environment with generalized unified power flow controller (GUPFC). This paper presents a methodology to optimally allocate the reactive power by minimizing voltage deviation at load buses and total transmission power losses so as to maximize the social welfare. The conventional active power generation cost function is modified by combining costs of reactive power generated by the generators, shunt capacitors and total power losses to it. The formulated objectives are optimized individually and simultaneously as multi-objective optimization problem, while satisfying equality, in-equality, practical and device operational constraints. A new optimization method, based on two stage initialization and random distribution processes is proposed to test the effectiveness of the proposed approach on IEEE-30 bus system, and the detailed analysis is carried out.

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