For decades, electricity transmission systems were planned to operate within the scope of active power transfers that, by their nature, were fairly well defined and limited in number, size, and direction. However, in recent years, this situation has been dramatically changing in front of our eyes as a result of two main developments. The first concerns new types of renewable power generation (i.e., wind, solar, tidal wave, and so on) and their increasing share of the generation portfolio. The second relates to the introduction and evolution of electricity markets. These factors contribute to fundamental changes in generation patterns and power transfers in ways that were not anticipated.

中文翻译：

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可再生能源对运行安全的影响：非同步可再生能源渗透率极高的电力系统运行


几十年来，电力传输系统被计划在有源电力传输的范围内运行，从本质上讲，有源电力传输的范围是相当明确的，并且在数量、规模和方向上受到限制。然而，近年来，由于两个主要发展，这种情况在我们眼前发生了巨大的变化。第一个涉及新型可再生能源发电（即风能、太阳能、潮汐发电等）及其在发电组合中不断增加的份额。第二个涉及电力市场的引入和演变。这些因素以意想不到的方式导致发电模式和电力传输发生根本性变化。