在液壓伺服控制應用中，長久以來皆以閥控系統為主流，但其能源效率低。而泵控系統雖然具有效率高的特性，但在響應上卻不如閥控系統快，使得傳統泵控系統在發展及應用上受到限制。近年來以AC伺服馬達實現高響應變轉速泵控伺服系統逐漸受到重視，因此，本文即以AC伺服馬達代替傳統泵控系統的感應馬達，並發展以距離基礎之適應性模糊滑動模式理論，利用適應性的法則來估測等效控制力，並且得以線上自我調整修正規則庫參數。分別對變排量定轉速及變轉速定排量泵控液壓系統實際實現定位、軌跡及速度等伺服運動控制實驗。以達到系統快響應、能源高效率及抗外部干擾能力佳的目標。

In the hydraulic servo control applications, hydraulic valve-controlled servo systems are used mostly due to the high response characteristics, which energy efficiency however is low. Hydraulic pump-controlled servo systems have high energy efficiency. But the conventional pump-controlled systems that are altered by displacement via variable displacement pumps have lower response. Recently, high response pump-controlled systems driven by AC servo motor with variable rotational speed are introduced. This paper aims to investigate the servo performance of the high response pump-controlled systems driven by AC servo motor with variable rotational speed. For that, a novel control strategy, modified sign-distance adaptive fuzzy sliding mode control (SD-AFSMC), is developed. The SD-AFSMC can simplify the fuzzy rule base through the sliding surface, and estimate the equivalent control and on-line self-tuning the rule base through the adaptive strategy. The developed high response variable rotational speed pump-controlled systems controlled by SD-AFSMC are implemented and verified experimentally for position control, path control and velocity control in the two different pump-controlled systems, including variable displacement pump-controlled and variable rotational speed pump-controlled systems.

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