Open AccessPIDF(1+FOD) controller for load frequency control with SSSC and AC–DC tie‐line in deregulated environment
Author(s) -
Prakash Abhineet,
Kumar Kundan,
Parida Sanjoy Kumar
Publication year - 2020
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.2019.1418
Subject(s) - control theory (sociology) , robustness (evolution) , cascade , pid controller , controller (irrigation) , tie line , automatic frequency control , electric power system , inertia , flexible ac transmission system , transmission line , ac power , computer science , engineering , control engineering , power (physics) , voltage , control (management) , temperature control , physics , artificial intelligence , chemistry , biology , telecommunications , biochemistry , classical mechanics , quantum mechanics , agronomy , chemical engineering , electrical engineering , gene , power flow
In this study, a maiden application of cascade proportional–integral–derivative with filter (PIDF) and one plus fractional‐order derivative (1+FOD), i.e. PIDF(1+FOD) controller is proposed for the load frequency control mechanism. The main purpose of the cascade and fractional order controller is to increase the degree of freedom and reject the disturbances faster. A novel attempt has also been made to model a static synchronous series compensator (SSSC) with AC tie‐line and HVDC tie‐line. Here SSSC and HVDC tie‐line are used to regulate and increase the power transfer capabilities between interconnected areas. Furthermore stored energy in the HVDC tie‐line is utilised to improve the system dynamics by inertia emulation control strategy. An evolutionary salp swarm algorithm‐based optimisation technique is adopted to optimise control parameters. The performance of the proposed controller is tested on a two‐area hydro‐thermal interconnected power system in deregulated environment. First, the effectiveness AC–DC‐SSSC tie line is shown over AC‐SSSC and alone AC tie‐line with proposed PIDF(1+FOD) controller followed by the supremacy of proposed PIDF(1+FOD) over classical controllers. Finally, sensitivity is analysed by variation in system parameters, which shows the robustness of the proposed controller.