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文档编号:ZD297 文档字数:20644,页数:41 摘要 本次设计是对线路保护和重合闸最佳配合的理论和方法的研究。文档运用多种方法来改进线路保护和重合闸之间的配合：通过查询各类资料和数据已证实缩短重合闸时限是可以实现的；同时，本文根据等面积定则原理计算得到最佳重合闸时间，保证系统稳定；在传统重合闸基础上，深入分析自适应重合闸技术，利用电压判据来区分故障的性质，在重合之前判断故障是否瞬时性质，再决定合闸信号的发送与否；关于分闸时间选择方面则采用傅立叶算法将直流和交流分量分离，实现短路零点的预测，若将这个算法和计算机的高速计算能力结合则将能达到短路小电流的分闸，保证电力系统的稳定。
Abstract This design is and switches on the optimum matching again to the line protection the theory and the method research. Between paper utilization many kinds of methods improve the line protection and switch on again the coordination: Through inquires each kind of material and the data confirmed that reduces switches on the time limit is achievable again; At the same time, this article according to the constant area rule principle computation to obtain best switches on the time again, the guarantee system is stable; In the tradition switches on again the foundation, analyzes auto-adapted thoroughly switches on the technology again, differentiates the breakdown using the voltage criterion the nature, before superposition did the diagnosis whether instant nature, decide that again switches on the signal the transmission or not; About will divide the floodgate time selection aspect to use the Fourier algorithm to direct current and the AC component separation, will realize a short circuit zero predict that if will be able to achieve this algorithm and computer's high speed computing power union the short circuit undercurrent a minute floodgate, guarantee electrical power system's stability.
第一章 引言 1
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| Tags：线路 保护 重合 最佳 配合 理论 方法研究 | 2010-04-24 11:27:09【返回顶部】 |
