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首页> 外文期刊>Proceedings of the IEEE >Network Security Assessments for Integrating Large-Scale Tidal Current and Ocean Wave Resources Into Future Electrical Grids
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Network Security Assessments for Integrating Large-Scale Tidal Current and Ocean Wave Resources Into Future Electrical Grids

机译：将大型潮流和海浪资源整合到未来电网中的网络安全评估

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摘要

Marine energy, especially tidal current and ocean wave resources, bear immense potential for generating renewable power toward meeting global electricity needs. A number of conversion technologies have been successfully demonstrated worldwide and precommercial/commercial deployments are expected to appear in the near future. While electric power utilities foresee renewable technologies as a viable alternative to fossil fuels, marine energy technologies are generally excluded in their energy planning processes. Lack of technological preparedness and unavailability of device information are two major obstacles in that regard. This article provides an insight on how such novel schemes of power generation can be analyzed under conventional network planning exercises using generic information. The first study focuses on wave power integration along the coasts of Oregon, USA for the year 2019 and analyzes the Northwest electrical network. The second study considers both tidal current and ocean wave resources in South Korea for the years 2017 and 2022. The primary objective of these high-level grid scenario analysis is to identify the practical potential for longer term large-scale wave and/or tidal power generation, particularly focusing on the transmission networks. Steady-state (overloading and voltage deviations/collapses), time-domain (angular stability and dynamic voltage recovery characteristics), and small-signal (eigenvalue) stability analysis are carried out for these systems. Subsequent to establishing a number of study scenarios, N-1 contingencies and various suitable violation criteria are prepared, which are used in identifying the underlying network bottlenecks, especially within the coastal areas. Simplified generic dynamic models of tidal current and ocean wave devices are developed for the time-domain analysis. It is expected that similar studies, once conducted by the interested utilities, will equip them better toward considering marine energy in their- future portfolios. In addition, device manufacturers and project developers will have greater confidence in the emerging marine energy market.
机译：海洋能源，特别是潮流和海浪资源，具有产生可再生能源以满足全球电力需求的巨大潜力。多种转换技术已在全球成功展示，并且预商业/商业部署有望在不久的将来出现。尽管电力公司认为可再生技术可以替代化石燃料，但海洋能源技术通常不包括在其能源规划过程中。在这方面，缺乏技术准备和设备信息不可用是两个主要障碍。本文提供了有关如何在常规网络规划练习中使用通用信息来分析这种新颖的发电方案的见解。第一项研究着眼于2019年美国俄勒冈州海岸的波浪能集成，并分析了西北电网。第二项研究同时考虑了2017年和2022年韩国的潮流和海浪资源。这些高级网格情景分析的主要目标是确定长期的大规模海浪和/或潮汐能的实际潜力发电，尤其是传输网络。对这些系统进行了稳态（过载和电压偏差/崩溃），时域（角度稳定性和动态电压恢复特性）和小信号（特征值）稳定性分析。在建立了许多研究方案之后，准备了N-1突发事件和各种合适的违规标准，用于识别潜在的网络瓶颈，尤其是在沿海地区。开发了简化的潮流和海浪设备通用动态模型，用于时域分析。预计一旦感兴趣的公用事业公司进行了类似的研究，将使他们更好地在其未来的投资组合中考虑海洋能源。此外，设备制造商和项目开发商将对新兴的海洋能源市场充满信心。

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