LOAD FREQUENCY CONTROL OF INTERCONNECTED POWER SYSTEM GRID INVOLVING WIND AND HYDROPOWER PLANT AND COMPARATIVE ANALYSIS
Keywords:load frequency control, wind power plant, hydropower plant, two area network, area control error, PI, PID, fuzzy gain scheduling
Power demand is expanding day by day. The greatest test is to give continuous and top-notch power to clients in factor conditions particularly when we interconnect the two areas utilizing power tie-line. To achieve this, the two boundaries should consistently be checked for each condition, these boundaries are Load Distribution and Load Frequency Control (LFC).The primary work of the load frequency control is to regulate the power output of the generator within a specified area with respect to change in system frequency and tie-line power, such as to maintain the scheduled system frequency and power interchange with other areas in a prescribed limit . In this paper, the study of LFC system for two areas consisting of Hydropower Plant and Wind Power Plant are carried out. The fuzzy gain scheduled proportional-integral (FGSPI) and fuzzy gain scheduled proportional integral derivative (FGSPID) controllers are designed for load frequency control (LFC) of a two-area interconnected power system. The proposed FGSPI and FGSPID controllers are compared against conventional proportional-integral (PI) controllers and Proportional integral derivation (PID) controllers concerning settling times and peak overshoots of the tie-line power and frequency deviations as performance indices. Comparative analysis indicates that the proposed intelligent controller gives better performance than conventional controllers. Simulations have been performed using Simulink toolbox in MATLAB.
- 10/26/2021 (2)
- 06/30/2021 (1)
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