Under the electric locomotive test conditions, when the grid current waveform and grid voltage waveform are non-sinusoidal, the method of integrating reactive power measurement with the formula and calculating reactive power can be used to determine the nature of reactive power. The integral method for measuring reactive power that has been tried during the traction power test of AC electric locomotives can also be applied to the traction power test of other electric locomotives equipped with reactive power compensators. In the area where the phase angle between current and voltage is zero, the possible error in determining the sign of reactive power is not greater than the electrical angle.
According to a previous study made by the researchers, the relationship between the coal consumption learning curve of the National Electric Power Company and Japan is as follows: the learning rate of the learning curve for coal consumption reduction in China, Japan, and Japan, and the Central China Electric Power Group is much higher than that of the whole country and Japan. This analysis of the rate at which coal consumption decreases with increasing power generation is more meaningful than the traditional analysis of coal consumption decreasing over time.
Because coal consumption involves many factors, this sorting result does not fully explain the level of coal consumption management work of the provincial companies. On the contrary, if you use the learning rate index of the learning curve to sort, according to the above calculation results, you can get the results of Jiangxi Hunan and Hubei from low to high. This order is almost the reverse of the previous order. Since the learning curve method considers that costs change with changes in output, it is unreasonable to compare the analysis made in the above article without considering the factors of output, that is, power generation.
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