Affiliation:
1. Xinxiang Vocational and Technical College, Xinxiang, Henan 453000, China
Abstract
Efficiency is an important indicator of risk assessment, but the failure rate changes with time, which makes risk assessment very difficult. Traditional methods often only measure the steady-state and static indicators of relay protection. The traditional method often only measures the steady-state and static indicators of the relay protection, or directly uses the RiskWeibull analysis system to perform reliability analysis on the relevant data. However, this method can only perform quantitative static analysis on the data. Once the system is disturbed, its reliability will be affected. Analysis is not possible. Since the relay protection device has the possibility of malfunction and refusal at the same time, in order to distinguish, the risk is introduced into the reliability evaluation of the relay protection device to achieve the purpose of considering the possibility and consequences of its failure at the same time. Based on the traditional method, this paper proposes a method to calculate the time-varying failure rate of the relay protection device by using the support vector machine model, which improves the influence of hidden risks on the power grid relay protection, and not only realizes the scientific hidden danger evaluation, risk rating. It is of great significance for the development of power grids to evaluate the consequences of failures and to make the transmission lines operate safely and stably.
Subject
General Engineering,General Mathematics
Reference26 articles.
1. Throughput optimal random medium access control for relay networks with time-varying channels
2. Time-Varying Channel Tracking for Amplify-and-Forward Relay Network in High Doppler Spread
3. Relay selection in cooperative communication systems over continuous time-varying fading channel;G. Ke;Chinese Journal of Aeronautics and Astronautics: English Edition,2017
4. Relay selection in cooperative communication systems over continuous time-varying fading channel
5. Research on state evaluation of relay protection device based on fuzzy DEA theory;L. Yang;Dianli Xitong Baohu yu Kongzhi/Power System Protection and Control,2017
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献