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Impact of high penetration of variable renewable generation on frequency dynamics in the continental Europe interconnected system

机译：可变可再生能源的高普及率对欧洲大陆互联系统中频率动态的影响

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摘要

This study addresses the development and operation of the European continental electricity system with a high penetration of wind and photovoltaic (PV) generation. The main focus of the work is the assessment of the impact of inertia reduction, due to wind and PV power electronics interface, on frequency stability indicators, as the rate of change of frequency and the frequency nadir following a large generation loss. The analysis is based on dynamic frequency stability studies, performed for every hour of the year and over a large number of weather scenarios. The outputs of these simulations are used to perform statistical analysis of these indicators and to estimate the critical instantaneous penetration rate of wind and PV, which the European continental synchronous area can accommodate from a system dynamics point of view. The results show that a single critical instantaneous penetration rate cannot be defined, since the frequency dynamic behaviour depends on parameters that change from one period to the following. Instead, this critical penetration rate should be calculated for every dispatch period. This study also highlights the growing importance of load self-regulating effect's contribution to frequency stability in the future system.
机译：这项研究解决了欧洲大陆电力系统的开发和运营问题，该系统具有很高的风能和光伏发电能力。这项工作的主要重点是评估由于风力和光伏电力电子接口而导致的惯性降低的影响对频率稳定度指标的影响，因为频率的变化率和发电损耗较大后的最低频率。该分析基于动态频率稳定性研究，该研究针对一年中的每个小时以及在许多天气情况下进行。这些模拟的输出用于对这些指标进行统计分析，并估计风和PV的临界瞬时渗透率，从系统动力学的角度来看，欧洲大陆同步区可以容纳这些瞬时渗透率。结果表明，由于频率动态行为取决于从一个周期到下一个周期变化的参数，因此无法定义单个临界瞬时渗透率。相反，应针对每个调度周期计算此临界渗透率。这项研究还强调了负载自调节效应对未来系统中频率稳定性的贡献的重要性日益增加。

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