技術簡介
主動建立電壓與頻率的先進逆變器控制架構,其核心目標是在高再生能源滲透率下維持電網穩定性。系統透過虛擬同步機技術(VSG),模擬傳統同步發電機的慣量與阻尼特性,使變流器具備頻率調節與電壓支撐能力,能有效抑制再生能源造成的功率波動,其控制策略搭配硬體設計,支援無縫離併網切換,確保系統在併網、孤島及弱電網條件下皆能穩定運轉,是未來強韌電網與微電網架構的關鍵技術。
Abstract
An advanced inverter control architecture that proactively establishes the grid’s voltage and frequency, with the core objective of maintaining system stability under high renewable‑energy penetration. By leveraging the virtual synchronous generator (VSG) technique to emulate the inertia and damping characteristics of conventional synchronous machines, the converter attains frequency regulation and voltage support capabilities, effectively mitigating power fluctuations induced by renewables. Coupled with appropriate hardware design, the control strategy enables seamless grid‑connected/islanded switching, ensuring stable operation under grid‑tied, islanded, and weak‑grid conditions. This constitutes a key enabling technology for resilient future power systems and microgrid architectures.
技術規格
容量為50kVA;過載能力1.5pu@1分鐘;可操作於併網與離網狀態。
Technical Specification
Rated capacity of 50 kVA; overload capability of 1.5 pu for 1 minute; operable in both grid‑connected and islanded modes.
技術特色
完成50kVA具有虛擬同步機控制之變流器開發,完成離網模式下,與電網跟隨型(GFL)變流器偕同運轉(GFL變流器容量比率為20%)。
應用範圍
微電網系統;儲能系統;增強電網韌性等相關試驗場所。
接受技術者具備基礎建議(設備)
RLC對應負載、可調式交流電源、電網跟隨型變流器、示波器。
接受技術者具備基礎建議(專業)
熟悉儲能系統、電力電子技術知識、電力相關背景人才。
聯絡資訊
聯絡人:陳柏力 電網與電力電子技術組
電話:+886-6-3636769 或 Email:opll@itri.org.tw
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