Reduced H/sub ∞/ load frequency controller in a deregulated electric power system environment

2002 ◽  
Author(s):  
A. Feliachi
Keyword(s):  
Power System ◽  
Electric Power ◽  
Electric Power System ◽  
System Environment ◽  
Load Frequency ◽  
Frequency Controller

Integration and Enhancement of Load Frequency Control Design for Diverse Sources Power System via DFIG Based Wind Power Generation and Interonnected via Parallel HVDC/EHVAC Tie-Lines

2020 ◽  
Vol 46 ◽  
pp. 106-124 ◽  
Author(s):  
Gulshan Sharma ◽  
K. Narayanan ◽  
I.E. Davidson ◽  
K.T. Akindeji
Keyword(s):  
Power System ◽  
Electric Power ◽  
Frequency Control ◽  
Electric Power System ◽  
Load Frequency Control ◽  
State Variables ◽  
Load Frequency ◽  
Tie Lines ◽  
System States ◽  
Doubly Fed

The present paper discusses the integration as well as contribution of doubly fed induction generator (DFIG) based wind turbines in load frequency control (LFC) of the modern electric power system in order to supply the quality as well as pollution free electric power to the modern customers. In addition the control areas are connected via HVDC tie-line in parallel with EHVAC line with diverse sources i.e. hydro, thermal and gas based power generations in each area. Efforts have been made to propose an optimal LFC design based on the feedback of few state variables which are available for the measurement and contains good information of the complete power system. The LFC design based on few states are implemented and the obtained results are presented to show the LFC enhancement considering DFIG and parallel HVDC/EHVAC lines. Atlast, the beauty and effectiveness of LFC based on few states are compared with LFC design depends on all system states under similar working conditions and the application results are presented.

Gain Schedule PI Fuzzy Load Frequency Control for Two-Area Electric Power System

2020 ◽  
Vol 9 (3) ◽  
pp. 39-50
Author(s):  
Tawfiq H. Elmenfy
Keyword(s):  
Power System ◽  
Electric Power ◽  
Frequency Control ◽  
Electric Power System ◽  
Operating Conditions ◽  
Load Frequency Control ◽  
Rule Base ◽  
Level Control ◽  
Load Frequency ◽  
Gain Schedule

The use of proportional integral (PI) load frequency control (LFC) to ensure the stable and reliable operation of electric power system is practical important. Any imbalance between synchronous generators and consumption loads will cause frequency unstable within the complete power system. The purpose of the load frequency control (LFC) is to keep the power system frequency and the inter-area tie power as near equilibrium point. This article introduces a gain schedule PI fuzzy load frequency control (GLFC) applying to two area electric power system. The GLFC consists of two level control systems, where the PI controller in the conventional form and its parameters are tuned in real time by fuzzy system. A fuzzy rule base is constructed in the form set of IF-THEN that describe how to choose the PI parameters under different operating conditions. The simulation has been conducted in MATLAB Simulink package. The effectiveness of the GLFC is measured by comparison with conventional PI load frequency controller.

Expectation for Smart Inverter & DERMS for Electric Power System Task

2018 ◽  
Vol 138 (6) ◽  
pp. 412-415 ◽  
Author(s):  
Ryo Maeda ◽  
Takeshi Fukuoka ◽  
Yasutoshi Yoshioka ◽  
Atsushi Harada
Keyword(s):  
Power System ◽  
Electric Power ◽  
Electric Power System ◽  
System Task
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