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首页> 外文会议>Annual Conference for Protective Relay Engineers >Protection issues related to pumped storage hydro (PSH) units: Members of the “Working group on protective relaying for pumped storage hydro units”;
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Protection issues related to pumped storage hydro (PSH) units: Members of the “Working group on protective relaying for pumped storage hydro units”;

机译：与抽水蓄能电站（PSH）机组有关的保护问题：“抽水蓄能电站机组保护继电工作组”的成员;

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摘要

Pumped storage hydroelectric (PSH) units provide protection complexity not encountered in conventional generating plants. As PSH units operate in both generating and pumping modes, attention must be given to the frequency and phase rotation presented to the relaying. In some PSH applications, additional relays and switching of VT and CT connections are applied to cope with these challenges. This paper serves as an update to the original 1975 paper based on survey results when the majority of relays were of the discrete variety. Discrete relays did not have frequency tracking characteristics or provide operation mode based phase rotation selection, however newer technology can adapt to these PSH operational challenges. With the advent of new relaying technology, including static and microprocessor designs, an updated PSH Protection Practices survey was conducted in 2012 to quantify recent relaying practice and protection application trends on PSH units.
机译：抽水蓄能水力发电（PSH）装置可提供传统发电厂未曾遇到的保护复杂性。由于PSH单元以发电和泵浦两种模式运行，因此必须注意继电器所呈现的频率和相位旋转。在某些PSH应用中，需要使用额外的继电器以及VT和CT连接的切换来应对这些挑战。当大多数继电器为离散型继电器时，本文根据调查结果对1975年的原始论文进行了更新。离散继电器没有频率跟踪特性，也没有提供基于工作模式的相位旋转选择，但是更新的技术可以适应这些PSH的工作挑战。随着新的继电技术（包括静态和微处理器设计）的出现，2012年进行了更新的《 PSH保护实践》调查，以量化PSH单元上最新的继电实践和保护应用趋势。

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