未来北欧能源系统N-1电压安全性评估
Assessment of the N-1 voltage security of a future Nordic energy system
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中文总结 AI 辅助
本研究评估2050年脱碳北欧能源系统CE-ESM结果的N-1电压安全性，发现不满足安全要求，并指出电力园区模块电压控制与并联自动化能显著提升电压安全，低发电区域风险最高。
中文摘要 AI 辅助
容量扩展-能源系统模型（CE-ESMs）已被广泛应用于国家和大陆尺度上优化未来能源系统的脱碳进程。为了捕捉所研究系统不同部分之间电力贸易的局限性，CE-ESMs通常包含输电网络的表示。然而，CE-ESMs通常仅包含电网的线性化表示，并省略或强烈简化电网稳定性要求。在本工作中，我们评估了从脱碳北欧能源系统（2050年）的CE-ESM获得的电力系统结果的N-1电压安全性，并分析了不同电网规范要求以及并联电容器和电抗器自动化对电压安全性的影响。作为比较，我们评估了基于ENTSO-E数据的2022年系统。我们表明，北欧国家的CE-ESM结果不满足N-1电压安全，且根据电网规范和并联自动化要求，存在电压越限的预想事故比例从1.1%到17.4%不等。此外，结果表明，在建模的未来系统中，电力园区模块电压控制和并联极端电压自动化对电压安全性都有很强的积极影响。发电水平低、因而来自发电机的动态无功功率少的电网区域被发现是最有可能电压不安全的。
英文摘要
Capacity Expansion - Energy System Models (CE-ESMs) have been widely used to optimize the decarbonization of future energy systems on national and continental scales. To capture the limitations in electricity trade between different parts of the system investigated, CE-ESMs often include a representation of the transmission grid. However, CE-ESMs usually only include linearized representations of the grid and omit or strongly simplify grid stability requirements. In this work, we evaluate the N-1 voltage security of the electricity system results obtained from a CE-ESM of a decarbonized Nordic energy system in Year 2050, and analyze the effects of different grid code requirements and shunt capacitor and reactor automation on voltage security. For comparison, we evaluate a Year 2022 system based on ENTSO-E data.We show that the CE-ESM results for the Nordic countries are not N-1 voltage-secure and that, depending on the grid code and shunt automation requirements, the contingencies with voltage violations range from 1.1% to 17.4%. Furthermore, the results indicate that both Power Park Module voltage control and shunt extreme voltage automation have strong positive effects on voltage security in the modeled future system. Grid regions with low levels generation, and thus little dynamic reactive power from generators, are found to be the most at risk of being voltage-insecure.
发表机构
- Chalmers University of Technology（查尔姆斯理工大学）
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