含大量再生能源之配電饋線電壓分析

Voltage analysis of a distribution feeder connected a large total capacity of renewable energies

郭奕德(Yih-Der Kuo)

指導教授 ： 許世哲

中原大學/電機資訊學院/電機工程研究所/碩士(2017年)

https://doi.org/10.6840/cycu201700640

摘要

隨著氣候變遷問題受到關注，以及環保意識的提升，傳統能源將逐漸被再生能源取代。再生能源的優點為可永續使用，但併入電網之後，由於其間歇性的發電特性，當其佔比到達一定比例時，會對電網的穩定性造成衝擊。隨著再生能源發電技術的逐漸成熟，其發電成本降低，滲透率（penetration）不斷提升，再生能源發電對電網的影響也逐漸顯現。
電力公司為避免再生能源發電對電網造成過大的衝擊，對再生能源發電的併網皆有一定的規範。就台電公司而言，為「再生能源發電系統併聯技術要點」。為了增加再生能源發電的滲透率，了解再生能源發電會對電網造成何種衝擊並提出改善方法，進而藉由研究成果檢討電力公司所訂規範之適切性是十分必要的。
本論文使用OPENDSS進行饋線電壓模擬。探討當規範所允許之最大裝置容量之再生能源發電（風力與太陽能發電）併入饋線後，對整體饋線電壓之影響以及其電壓變動率。最後並模擬OLTC、同步電容與儲能系統應用於饋線電壓改善之效果。

關鍵字

太陽能發電系統 ； 風力發電系統 ； 電壓變動 ； 配電系統

並列摘要

Traditional energy will be gradually replaced by renewable energy because of climate change and the rising of environmental protection consciousness. Renewable energy would never be exhausted, however it will impact the system stability while it is connected to the power grid. Because of the technology development of renewable energy, the cost of renewable energy is decreased. This situation increases the penetration of renewable energy and also increases the impact on power grid.
To avoid the serious impact on power grid, the power companies all established standards to limit the connection capacity of renewable energy. For increasing the penetration of renewable energy, it is necessary to study what kind of impact will be caused by renewable energy and to provide solutions to reduce the impact. And also it is possible to revise the existing standard according to the research results.
The voltage variation and feeder voltage under the largest capacity of renewable energy connected to the feeder are studied by OPENDSS. At last, the performance of OLTC, synchronous condenser and energy storage system for reducing the impact are simulated.

並列關鍵字

Solar Power System ； Wind Power System ； Voltage Fluctuation ； Distribution System

參考文獻

[1] F. Blaabjerg, Y. Yang, D. Yang and X. Wang, "Distributed Power-Generation Systems and Protection," in Proceedings of the IEEE, vol. 105, no. 7, pp. 1311-1331, July 2017.

[6] M. J. Hossain, H. R. Pota, M. A. Mahmud and R. A. Ramos, "Investigation of the Impacts of Large-Scale Wind Power Penetration on the Angle and Voltage Stability of Power Systems," in IEEE Systems Journal, vol. 6, no. 1, pp. 76-84, March 2012.

[7] K. Kawabe and K. Tanaka, "Impact of dynamic behavior of photovoltaic power generation systems on short-term voltage stability," 2016 IEEE Power and Energy Society General Meeting (PESGM), Boston, MA, 2016, pp. 1-1.

[9] A. Allen, Y. C. Zhang, and B. M. Hodge, Impact of Increasing Distributed Wind Power and Wind Turbine Siting on Rural Distribution Feeder Voltage Profiles: Preprint, 2013.

[14] P. E. Marken, A. C. Depoian, J. Skliutas, and M. Verrier, "Modern synchronous condenser performance considerations," in 2011 IEEE Power and Energy Society General Meeting, 2011, pp. 1-5.