Analysis of Improving Generator Power Quality and Unit Stability Based on Generator Short Circuit Drying Temperature Rise Test

The structural stress concentration caused by the large temperature difference in the field during the installation of generators will bring about problems of power quality and stability. In order to solve this problem, a short circuit drying test is carried out on the generator, and the vibration, spectrum characteristics, phase voltage harmonic distortion rate and telephone harmonic factor are calculated and analyzed before and after the test. Through the test and analysis, it is found that the stability parameters of the unit and the electromagnetic parameters of the generator are obviously improved, and the ideal power quality and safe and stable operation characteristics are achieved. The results show that this method can effectively release the stress concentration caused by the large temperature difference during the installation of the generator, make the magnetic circuit of the generator more uniform, improve the power quality, and provide a new scheme and basis for the solution of the power quality and stability of the generator.