METHOD FOR CALCULATING SPEED REQULATION RATE AND OUTPUT RAMP RATE OF GENERATOR IN THE THERMAL POWER PLANT AND COMPUTER READABLE RECORDING MEDIUM FOR PERFORMING SAME

摘要

The present invention relates to a method for calculating a generator speed adjustment rate and an output change rate in a thermal power plant, and a computer readable recording medium having recorded thereon a program for realizing the method.;The present invention relates to a method for calculating a speed adjustment rate of a generator in a thermal power plant using a frequency adjustment operation program executed by a computer having an input device, an output device, a calculation device and a storage means, the method comprising: (a) a frequency signal (Gov Free); On), the analog input value is delayed and output by delay, and the summing function for calculating the difference between the analog input value and the output value of the analog delay function and the output value of the function Detecting a time point of change of frequency and a time point of end of change by an H / L function of controlling a Set / Reset function according to one reference value; (b) Hold and store the difference value of the frequency (Error) at the time of the change of the frequency, and change the frequency change amount by the function Σ1 that receives the changed frequency difference value and the held frequency difference value as an input. Calculating; (c) holding and storing an output value at the time of change of the frequency, and calculating an output change amount by a? 2 function receiving the changed output value and the held output value as inputs; And (d) when the frequency change amount and the output change amount are equal to or greater than a second reference value, the frequency change amount is an input of a T3 function, the output change amount is an input of a T4 function, and the T3 output value is a rated frequency (60 Hz). Calculating a speed adjustment rate by obtaining a percentage ratio of a value obtained by dividing the divided value and the T4 output value by the rated output (500 MW), wherein the frequency adjustment operation program measures and monitors the speed adjustment rate in real time to adjust the speed adjustment rate. Above this reference value (5.5), thermal control characterized by maintaining the system frequency (60 Hz) by adding or subtracting a preceding control signal to the turbine valve controller so that the output can be further changed by opening or closing the turbine valve further by the frequency change amount. Provides a way to calculate the rate of change of the generator and the rate of change of output in a power plant.;According to the present invention, since the frequency adjustment operation (speed adjustment rate and output change rate) can be measured and monitored in real time, when the reference value of the frequency adjustment operation is not reached, the control signal is transmitted to the turbine controller to control the system frequency (60). Hz) has the effect of eliminating system instability.;Speed regulation rate, output change rate, load request signal, grid frequency