考虑电气元件多重故障的海上风场集电系统可靠性与经济性评估

发布时间：2018-04-06 22:12

本文选题：海上风电场　切入点：集电系统　出处：《现代电力》2017年06期

【摘要】：随着海上风电场装机容量日益增加,风电场集电系统拓扑结构将成为影响海上风电场可靠性与经济性的关键因素,为此本文提出了风电场集电系统可靠性评估模型与经济性评估方法。考虑了集电系统内部电气元件的多重故障,采用分块枚举法,比较了风电场集电系统不同拓扑结构的可靠性,计算得到年电量不足期望值和系统等效可用率等可靠性指标以及不同拓扑结构下风场运行容量概率模型。并计及系统可靠性对经济性的影响,综合考虑一次投资成本和故障机会成本,计算得到不同拓扑结构的经济性指标。通过算例分析得到,单边环形拓扑结构的可靠性最高,链形拓扑结构的经济性最优。与以往评估集电系统拓扑结构可靠性与经济性的研究相比,本文考虑了电气元件的多重故障,得到了不同拓扑结构风场运行容量概率模型,评估结果准确合理,研究更具广泛意义。
[Abstract]:With the increasing installed capacity of offshore wind farm, the topology of wind farm collecting system will become the key factor to affect the reliability and economy of offshore wind farm.In this paper, the reliability evaluation model and economic evaluation method of wind farm power collection system are proposed.Considering the multiple faults of the internal electrical components of the collector system, the reliability of different topologies of the collector system in wind farm is compared by using the block enumeration method.The reliability indexes such as the expected value of annual electricity shortage and the equivalent availability rate of the system and the probabilistic model of wind field capacity under different topologies are obtained.Considering the influence of system reliability on economy, the economic indexes of different topologies are calculated by considering the cost of primary investment and the cost of fault opportunity.The results show that the single-sided ring topology is the most reliable and the chain topology is the most economical.Compared with the previous researches on the reliability and economy of the topology structure of the collector system, the multiple faults of the electrical components are considered in this paper, and the probabilistic model of the operating capacity of the wind field of different topology structures is obtained, and the evaluation results are accurate and reasonable.The research is of wider significance.
【作者单位】：上海交通大学电气工程系;上海绿色能源环保有限公司;
【基金】：基金项目:上海市科委计划任务书(16DZ1203504)
【分类号】：TM614

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