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首页> 外文会议>2015 5th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies >Realization and performance analysis of travelling wave based directional protection prototype
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Realization and performance analysis of travelling wave based directional protection prototype

机译：基于行波定向保护样机的实现与性能分析

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摘要

Travelling wave based protection is becoming attractive in ultra-high voltage (UHV) transmission systems due to the requirement for high-speed protection. However, the poor transfer characteristics of coupling capacitor voltage transformers (CCVTs) for high-frequency voltage have strictly limited its application. A travelling wave based protection prototype considering the characteristics of CCVTs is developed in this paper. Extensive laboratory tests are performed to assess the performance of the developed prototype. Further, the prototype has been applied in the 750 kV substations in China and an external fault was recorded during the operation period, validating the effectiveness and reliability of the proposed prototype.
机译：由于需要高速保护，基于行波的保护在超高压（UHV）传输系统中正变得越来越有吸引力。但是，耦合电容器电压互感器（CCVT）对于高频电压的较差的传输特性严格限制了其应用。本文开发了一种基于CCVT特性的行波保护原型。进行了广泛的实验室测试，以评估所开发原型的性能。此外，该样机已在中国750 kV变电站中应用，并在运行期间记录了外部故障，从而验证了所提出样机的有效性和可靠性。

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