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The Probabilistic Analysis of Dynamic Stability Concerning the Uncertainty of Load Model

Author: ZhangShu
Tutor: DongLei
School: North China Electric Power University (Beijing)
Course: Proceedings of the
Keywords: Power system Transient Stability Probability analysis Nonparametric estimation
CLC: TM712
Type: Master's thesis
Year: 2010
Downloads: 99
Quote: 0
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Abstract


The probability of transient stability analysis is an important complement to the uncertainty analysis method and development as a probabilistic analysis of the key at the conventional sampling method is simple but it is difficult to fully grasp the probabilistic characteristics of load to determine the load model composition ratio of the probability of transient stability analysis can not be a comprehensive study load response of the fault . In order to improve the accuracy of the analysis , the analysis of the system load on the probability of stability , this paper, with the characteristics of the probability of non-parametric kernel density estimation method analysis of load level , this sampling method to get the results as a probabilistic analysis of transient stability load early value at the same time taking into account the load model composition ratio change the IEEE10 machine 39-bus system analysis results show that the changes in the composition of the load model system instability probability of a certain degree of influence the stability of the consideration of the load model changes in the composition ratio of more comprehensive analysis sex . The concept of secondary development to establish the probability of transient stability analysis system , through Monte Carlo simulation to verify the effectiveness of the proposed method and the use of confidence by the PSS / E analysis of the accuracy of the simulation .

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CLC: > Industrial Technology > Electrotechnical > Transmission and distribution engineering, power network and power system > Theory and Analysis > Power system stabilizer
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