Study on the time variability of load characteristics based on Markov Chain Monte Carlo simulation

The accurate degree of the load model in the whole time period has important influence on the decision of the system and the stability of the system. But the load is time-varying. Current algorithms can identify the load model with certain accuracy at the time points when the voltage is instable. In the moment with stable voltage, due to the difficulty of identifying the load model, they use a constant load model. This paper tries to find out the regularity of the time variation and solve the problem of the uncertainty of the load, and then put forward the corresponding method.