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In this research Paper, G.A based LQG controller which is the combination of LQR and Kalman Filter is feedback in LFC using MATLAB/SIMULINK software package. The difficulty to determine the weight matrices Q and R in LQR controller is solved using Genetic Algorithm (G.A).
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In this case, it may be hard to tune the controller parameters to obtain the optimal behaviour of the system.
GAUSSIAN SOFTWARE IR FREQUENCY TRIAL
In despite of good results obtained from this method, the control design is not a straight forward task due to the trial and error involved in the selection of weight matrices Q and R. It’s a control strategy based on minimizing a quadratic performance index. Linear Quadratic Regulator (LQR) is an advanced control technique in feedback control systems. Modern and optimal controllers are much faster and they also give better output response than conventional controllers. This can be achieved by using a conventional controller like PID but the conventional controller is very slow in operation. LFC incorporates an appropriate control system which is having the capability to bring the frequency of the Power system back to original set point values or very near to set point values effectively after the load change. 12 The vibrational frequency analysis in Gaussian 92. The main goal of LFC is to minimize the frequency deviations to zero. Installing the Linda Software and Compiling G09/Linda If you have purchased Gaussian binaries. The Load Frequency Control (LFC) is used to restore the balance between load and generation by means of speed control. Many techniques have been proposed to obtain constant value of frequency and to overcome any deviations. For satisfactory operation the frequency of power system should be kept near constant value. When real power changes, system frequency gets affected while reactive power is dependent on variation in voltage value. Nowadays power demand is increasing continuously and the biggest challenge for the power system is to provide good quality of power to the consumer under changing load conditions.