分散型電源併入配電系統對饋線電壓變動之研究

Study to Feeder Voltage Variation Caused by Distributed Generation Interconnection

郭芳楠(Fan-Nan Kuo)

指導教授 ： 高文秀 ； 李清吟

國立臺北科技大學/機電學院/電機工程系所/碩士(2005年)

https://doi.org/10.6841/NTUT.2005.00297

摘要

隨著環保意識提高及提高能源使用效率，分散型電源在近年來備受重視。分散型電源包括再生能源發電及非再生能源發電兩大類。由於分散型電源的特性，其一般均併接於較低電壓等級之電力系統，尤其以併接於配電系統為主，然因配電系統系統強度低且直接引供一般用戶，其併接後將引起之電壓變動，將直接影響用戶用電品質，值得重視與進一步瞭解。
透過對台電配電系統及分散型電源特性的瞭解，我們採取分散型電源於饋線輕載時滿載發電及重載時未發電之極端情形做為全年最大電壓變動的基準，透過模擬架構設計與建立，以MATLAB進行模擬分析，發現在相同電壓變動限制下：
1.饋線尖載與輕載變化較小，則可容許併聯之DG容量較大。
2.負載型態影響饋線可容許併接DG容量，並以「末端集中」負載型態可併接容量較大。
3.配電系統強健度越強者，配電饋線可允許併聯之DG容量越大。
4.配電線路負載及DG功因愈佳者，配電饋線可允許併聯之DG容量越大。

關鍵字

分散型電源 ； 嵌入型電源 ； 汽電共生系統 ； 再生能源 ； 配電系統 ； 併聯 ； 電壓變動

並列摘要

Following the more environment protection and rising energy efficiency DG is quickly putting on the light. Distributed generation has been becoming an important national energy policy around world for its multi-energy oriented, and low population advantages, with the promotion of green energy issues and energy deficiency. However, DG interconnect to distribution system will cause the voltage variation what will affect distribution customer’s power quality.
Through the recognization of Taiwan Power Company distribution system and DG characteristics we design the simulating structure and simulate with MATLAB. The research finds that at constant voltage variation restrict:
1.The variation between peak and off peak load of feeder will affect the capacity of DG allowed to connect to distribution system. 2. Feeder’s load-profile will affect DG capacity allowed to connect to feeder. 3.The more system-strength, the more capacity of DG allowed to connect to feeder. 4.The better power factor of distribution system and DG, the more capacity of DG allowed to connect to feeder.

並列關鍵字

Distributed Generation ； Embedded Generation ； Renewable Energy ； Interconnection ； Co-Gen ； Distribution System ； Voltage Variation

參考文獻

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[39] IEEE Std 1547-2003, IEEE Standard for Interconnecting Distributed Resources with Electric Power Systems.

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