scholarly journals Load Frequency Control of Three area Multi-Unit Deregulated Power System with FOSMC and Performance analysis using Regulation constant

2020 ◽  
pp. 389-406
Author(s):  
KURAKULA VIMALA KUMAR ◽  
G.Sritej ◽  
V.Ganesh
Keyword(s):  
Energy Storage ◽  
Power System ◽  
Sliding Mode ◽  
Magnetic Energy ◽  
Frequency Control ◽  
Phase Shifters ◽  
Load Frequency Control ◽  
Dynamic Responses ◽  
Load Frequency ◽  
Deregulated Power System

This paper presents three area multi-unit Deregulated Power System (DPS) for Load Frequency Control (LFC) using Fractional Order Sliding Mode Controller (FOSMC) along with Thyristor Controlled Phase Shifters (TCPS) and Superconducting Magnetic Energy Storage (SMES) combination. The FOSMC can be used to overcome nonlinearities and uncertainties of the system for bilateral and unilateral transactions under different Step Load Perturbations (SLPs). The deregulated power system performance is analyzed for different Regulation constants (R) such as 1.8, 2.4 and 3.0. For stabilization of oscillations in frequency and to stabilize the deregulated power system dynamically for different SLPs, TCPS is incorporated with the tie line in series and SMES is used as an energy storage unit. The dynamic responses of LFC problems have been simulated and analyzed with MATLAB/Simulink-based computer simulations. Further simulation results have also been tabulated as a comparative performance with respect to peak overshoot and settling time. 

scholarly journals Fractional Order Sliding Mode Controller Fed Load-Frequency Control of Multi-Area Deregulated Power System Network

2020 ◽  
Vol 9 (3) ◽  
pp. 2944-2949 ◽  
Keyword(s):  
Power System ◽  
Fractional Order ◽  
Sliding Mode ◽  
Frequency Control ◽  
Pi Controller ◽  
Load Frequency Control ◽  
Sliding Mode Controller ◽  
Load Frequency ◽  
Deregulated Power System ◽  
Sudden Load

This paper presents a Fractional Order Sliding Mode Controller (FOSMC) for load frequency control of multi area power system in deregulated environment. In deregulated power system the design of controller is more complicated due to contracted and un-contracted load demands. This proposed controller shall take care of system nonlinearities and uncertainties under bilateral contract scenario for sudden load disturbances. The performance of proposed controller compared to PI controller and without any controller.

scholarly journals Load Frequency Control in a Multi-Area Deregulated Power System with BBBC-based Discrete Fractional Order Control Scheme

2020 ◽  
Vol 15 ◽  
Keyword(s):  
Power System ◽  
Frequency Control ◽  
Big Bang ◽  
Load Frequency Control ◽  
Frequency Error ◽  
Area Control Error ◽  
Load Frequency ◽  
Deregulated Power System ◽  
Control Scheme ◽  
Big Crunch

Load frequency control (LFC) for multi-area restructured power system using discrete controlscheme has been suggested in this paper. The proposed LFC scheme utilizes synchronously measured dataof frequency and tie-line power to calculate area control error (ACE). A discrete non-integer proportionalintegral derivative controller (D-FOPID) has been used to derive frequency error to zero. Two-area thermaland four-area hydro thermal deregulated power system has been used to investigate various LFC issues. Theoptimal factors of D-FOPID have been obtained using big bang big crunch (BBBC) algorithm. The systemresults under MATLAB/Simulink validate that D-FOPID effectively work under different types of contractscenarios. D-FOPID performance has also been compared to discrete proportional integral derivativecontroller (D-PID). Further the compliance with control standards of North American electric reliabilitycouncil (NERC) has also been ensured for both the controller.

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