Study on Characteristics of Deficient Power Allocation and Frequency Distribution under Large Disturbance
The UHV AC/DC transmission project has been put into operation continuously,and the power grid power disturbance events occur frequently.At the same time,more and more new energy sources are replacing some traditional units in the power grid,resulting in a decline in the inertia level of the power system and a decline in the ability to support frequency.For this reason,the distribution characteristics of unbalanced power,frequency voltage drop and chain reaction near new energy units were studied when the power grid was disturbed.According to the characteristics of frequency distribution,the concept of regional inertia was proposed and simulated.The results show that the unbalanced power distribution is related to the line impedance and the frequency change rate has the distribution characteristics of the distribution characteristic frequency response,conducive to the research of the new energy grid connection inertia frequency modulation measures in the later stages.
inertiadisturbed power distributionfrequency distributionarea inertiafrequency stabilization
万方数据
维普
