Gaoya dianqi针对高压直流输电系统中换流站滤波电容器塔不平衡保护易受鸟害影响，以及传统物理驱鸟手段长期有效性不足的问题，开展鸟害故障机理与识别方法研究，以提升保护系统在复杂环境下的运行可靠性。分析了电容器塔内部故障与鸟害瞬时故障的产生机理差异，并基于故障波形特征进行频域分析，提取了能够有效区分两类故障的关键频域指标。构建了与实际运行工况相符的电容器电磁仿真模型，揭示了故障过程中电容器单元的过载特性与耐受边界。在此基础上，提出了一种针对性的不平衡保护改进策略，通过改进故障判别算法与跳闸延时逻辑 ...
邹洪森 +6 more
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