One of the cornerstones of a reliable transmission and distribution (T&D) grid operation is fully functional components that can operate robustly and with a low outage rate under all specified operating conditions. Dependable maintenance strategies are thus indispensable and are applied by grid operators around the world. One of the present key challenges in many countries with a widely developed T&D grid system is aging components that reach their anticipated end of life. Asset management faces the question of whether the lifetime of components could be prolonged and the replacement could be delayed. For this, the health of the components needs to be assessed and is ideally continuously monitored. In addition to this, the currently ongoing transition of the entire energy system leads to a change and increase of stress on the T&D equipment. The integration of new renewable energy sources on all voltage levels leads to bidirectional power flows and increased variability. The higher demand for electric power not only increases power-flow levels on average, but also in particular, peak flows. The result of this changed and increased stress on the equipment is an accelerated aging component and the need for maintenance strategies to be adopted for this new situation.

中文翻译：

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基于无创测量的直流电晕下聚酰亚胺表面电位动态


可靠的输配电 (T&D) 电网运行的基石之一是功能齐全的组件，这些组件可以在所有指定的运行条件下稳健运行且停电率较低。因此，可靠的维护策略是不可或缺的，并被世界各地的电网运营商所采用。许多拥有广泛发展的输配电电网系统的国家目前面临的主要挑战之一是老化组件达到预期寿命。资产管理面临的问题是能否延长部件的使用寿命和推迟更换。为此，需要评估组件的运行状况，并且最好持续监控。除此之外，当前整个能源系统正在进行的转型导致输配电设备的变化和压力的增加。所有电压等级的新可再生能源的整合导致双​​向功率流和增加的可变性。对电力的更高需​​求不仅增加了平均潮流水平，而且特别增加了峰值潮流。这种变化和设备压力增加的结果是部件加速老化，并且需要针对这种新情况采取维护策略。