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              基于兩級氣壓伺服系統的高速受電弓主動控制研究
              苗海濤,張衛華,梅桂明,李文韜
              (西南交通大學 牽引動力國家實驗室,四川 成都 610031)
              摘要:針對彈性鏈型懸掛接觸網利用有限元法建立接觸網模型,采用多體動力學建立受電弓模型,通過接觸力元將接觸網和受電弓進行耦合建立弓網耦合模型。然后建立氣壓伺服系統數學模型,根據車速信號采用比例控制策略控制升弓氣囊提供弓網靜態接觸壓力,根據采集得到的動態接觸力信號采用模糊控制策略控制空氣彈簧提供動態接觸壓力的補償力。作動器分別作用于下臂桿和弓頭懸掛,通過底架上的低頻調節和弓頭上的高頻調節兩級方式,主動控制接觸壓力,實現高速受電弓的穩定受流。
              關鍵詞:接觸網;受電弓;模糊控制;接觸壓力;氣壓伺服系統
              中圖分類號:TN820.3+4        文獻標識碼:A         文章編號:1006-0316 (2012) 08-0001-06
              High-speed pantograph active control strategy based on two pneumatic servo system
              MIAO Hai-tao,ZHANG Wei-hua,MEI Gui-ming,LI Wen-tao
              (Traction Power State Key Laboratory,Southwest Jiaotong University,Chengdu 610031,China)
              Abstract:For flexible chain suspension catenary, the catenary model is established using finite element method, the pantograph model is established by multi-body dynamics, then the coupling dynamics model of pantograph/catenary system is established through the contract force element. Pneumatic servo system is created using mathematical methods. According to the speed signal the static contact pressure is provided by controlling balloon using proportional control strategy. Air spring that is controlled using fuzzy control strategy according to the dynamic contract force signals provides compensation force for the dynamic contact pressure force. Actuators are installed in the under arm and bow head, the contact pressure was actively controlled by two ways including low-frequency and high-frequency In order to achieve a stable high-speed pantograph current collection.
              Key wordscatenary;pantograph;fuzzy control;contact force;pneumatic servo system

              ———————————————
              收稿日期:2012-02-23
              基金項目:國家科技支撐計劃項目(2009BAG12A01);國家973計劃項目(2007CB714700);鐵道部科技開發項目(2010J001-B)
              作者簡介:苗海濤(1986-),男,山東東阿人,碩士研究生,主要研究方向為高速列車系統動力學。

               

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