| 引用本文: | 李生虎,赵慧洁,周慧敏,张奥博.基于可靠性灵敏度的UHVDC系统预防性检修优化[J].电力系统保护与控制,2022,50(3):68-75.[点击复制] |
| LI Shenghu,ZHAO Huijie,ZHOU Huimin,ZHANG Aobo.Reliability sensitivity-based optimization for a UHVDC transmission system with preventive maintenance[J].Power System Protection and Control,2022,50(3):68-75[点击复制] |
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| 基于可靠性灵敏度的UHVDC系统预防性检修优化 |
| 李生虎,赵慧洁,周慧敏,张奥博 |
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| (1.合肥工业大学电气与自动化工程学院，安徽 合肥 230009;2.新能源利用与节能安徽省重点实验室，安徽 合肥 230009) |
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| 摘要: |
| 对特高压直流(Ultra High-Voltage DC, UHVDC)输电系统元件进行预防性检修(Preventive Maintenance, PM)，可提高UHVDC可靠性，其难度在于如何确定需要预检的元件、如何建立反映预检参数对可靠性指标影响的预防性检修模型。针对上述问题，建立了UHVDC可靠性灵敏度模型，以确定其薄弱元件。提出了计及潜在故障状态的元件预防性检修模型。根据容量分层等值状态空间，提出了包含预检的UHVDC可靠性模型。提出了UHVDC可靠性对薄弱元件预检参数的优化算法。算例分析验证了所提预防性检修的可行性和优化算法对改善UHVDC可靠性的有效性。 |
| 关键词: 特高压直流(UHVDC) 预防性检修 可靠性 灵敏度 优化 |
| DOI：DOI: 10.19783/j.cnki.pspc.210530 |
| 投稿时间：2021-05-08修订日期：2021-11-11 |
| 基金项目:国家自然科学基金项目资助(51877061) |
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| Reliability sensitivity-based optimization for a UHVDC transmission system with preventive maintenance |
| LI Shenghu,ZHAO Huijie,ZHOU Huimin,ZHANG Aobo |
| (1. School of Electrical Engineering and Automation, Hefei University of Technology, Hefei 230009, China;
2. Anhui Province Key Laboratory of Renewable Power Utilization and Energy Saving, Hefei 230009, China) |
| Abstract: |
| Preventive maintenance (PM) to the components of an ultra high-voltage DC (UHVDC) transmission system may improve its reliability. The difficulty is how to determine the weak component needing PM, and how to derive the PM model showing the impact of a component’s PM parameters on system reliability. This paper derives a reliability sensitivity model of the UHVDC to determine the vulnerable component. The PM model for the weak component with its potential failure state is proposed. The state space is hierarchically aggregated based on the capacity to propose the reliability model of the UHVDC with the PM. The optimization model of UHVDC reliability to the PM parameter of vulnerable components is proposed. The numerical results verify the feasibility of the proposed PM and the effectiveness on improving the reliability of the UHVDC.
This work is supported by the National Natural Science Foundation of China (No. 51877061). |
| Key words: ultra high-voltage direct current (UHVDC) preventive maintenance reliability sensitivity optimization |
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