功率硬體迴路(PHIL)是一種即時模擬形式，可以讓實際的待測電力設備與虛擬的電力系統進行互動模擬。在功率硬體迴路模擬中，待測電力設備（DUT）透過功率放大器和界面演算法連接到數位即時模擬器(RTS)。其中功率放大器通常使用開關模式功率放大器，因為它有較高的泛用性且容易實現，但也同時有較慢的動態響應。本文將基於遞迴最小二乘方法（RLS）的無模型預測控制方法應用到功率硬體迴路模擬中，可以改善其動態響應和性能。這個控制方法同時被建置在模擬及實作的功率硬體迴路系統中，以比較其與傳統控制方法的表現。此外，我們將2022年發生在金門的接地故障事件建模，並進行功率硬體迴路模擬以驗證其可行性。

Power Hardware-in-the-loop(PHIL) is a form of real-time simulation that allows a real power device to interact with a simulated power system. In PHIL simulation, a DUT is connected to a real-time digital simulator via a power amplifier and interface algorithm. A switched-mode amplifier is commonly employed in the PHIL application because of its versatility and ease of setup. However, it is known to have a slow, dynamic response. This paper applies model-free predictive control based on the recursive least square(RLS) method to the PHIL simulation, which can improve the dynamic response and the performance of the PHIL. The control algorithms are implemented both in offline simulation and in an actual PHIL setup to verify the performance of the proposed control method. Finally, an actual fault event occurred at Kinmen is applied to PHIL simulation to verify the feasibility of PHIL simulation.

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