周玮

个人信息Personal Information

副教授

硕士生导师

性别:女

毕业院校:大连理工大学

学位:博士

所在单位:电气工程学院

学科:电力系统及其自动化

办公地点:电气工程学院515室

电子邮箱:zhouwei@dlut.edu.cn

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基于两点估计法的交直流混合系统电压稳定概率评估

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发表时间:2022-10-10

发表刊物:电力系统保护与控制

所属单位:电子信息与电气工程学部

期号:5

页面范围:8-13

ISSN号:1674-3415

摘要:Traditional voltage stability analyses of AC/DC hybrid systems are mostly based on deterministic methods, without taking into account the influence of various uncertain factors, this will do harm to the economy and rationality of system operation. In order to make up the deficiency of deterministic analysis method, this paper proposes a voltage stability analysis of AC/DC hybrid systems based on two-point estimate method. The method takes into account the uncertainties of load levels and power growth factors and establishes the loading margin model of AC/DC hybrid systems. The first three statistic moments of loading margin and bus voltage on the point of voltage collapse are computed by a few deterministic computations, thus the probabilistic distributions of the desired variables are obtained and the probability of voltage instability under some load level is determined. Compared with Monte Carlo simulation, the computational accuracy is satisfied and the execution time is significantly shortened. ?, 2015, Power System Protection and Control Press. All right reserved.

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