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Circuit design for electrohydraulic proportional amplifier
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Circuit design for electrohydraulic proportional amplifier
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Circuit design for electrohydraulic proportional amplifier
Circuit design for electrohydraulic proportional amplifier
Journal Article

Circuit design for electrohydraulic proportional amplifier

2018
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Overview
Cet article tente de concevoir un circuit modulable pour amplificateur proportionnel électrohydraulique.Tout d’abord, le principe de contrôle de la modulation de largeur d’impulsion (MLI) de l’amplificateur a été discuté, ainsi que le développement récent de l’amplificateur et les exigences de contrôle de la valve directionnelle proportionnelle. Ensuite, un modèle mathématique a été établi pour le courant bobine de solénoïde proportionnelle. Sur cette base, l'auteur a analysé la méthode de commande de l'amplificateur proportionnel électrohydraulique et a détaillé la conception du circuit de l'amplificateur. La conception proposée a ensuite été vérifiée par un test de contrôle et une simulation logicielle. Les résultats du test concordent bien avec les données de simulation et montre que la conception du circuit est faisable et valide. TITRE Conception de circuit pour amplificateur proportionnel électrohydraulique TITLE Circuit design for electrohydraulic proportional amplifier RÉSUMÉ Cet article tente de concevoir un circuit modulable pour amplificateur proportionnel électrohydraulique.Tout d’abord, le principe de contrôle de la modulation de largeur d’impulsion (MLI) de l’amplificateur a été discuté, ainsi que le développement récent de l’amplificateur et les exigences de contrôle de la valve directionnelle proportionnelle. Ensuite, un modèle mathématique a été établi pour le courant bobine de solénoïde proportionnelle. Sur cette base, l'auteur a analysé la méthode de commande de l'amplificateur proportionnel électrohydraulique et a détaillé la conception du circuit de l'amplificateur. La conception proposée a ensuite été vérifiée par un test de contrôle et une simulation logicielle. Les résultats du test concordent bien avec les données de simulation et montre que la conception du circuit est faisable et valide. ABSTRACT This paper attempts to design a stuiable circuit for electrohydraulic proportional amplifer. Firstly, the pulse width modulation (PWM) control principle of the amplifier was discussed, along with the recent development of the amplifier and the control requirements of proportional direction valve. Then, a mathematical model was established for the proportional solenoid coil current. On this basis, the author analyzed the control method of electrohydraulic proportional amplifier, and detailed the circuit design for the amplifier. The proposed design was then verified through a control test and software simulation. The test results agree well with the simulation data, indicating that the circuit design is feasible and valid. AUTHOR(S) Yongchun HOU MOTS-CLÉS modulation de largeur d'impulsion (MLI), bobine de solénoïdale proportionnelle, amplificateur proportionnel, simulation. KEYWORDS pulse width modulation (PWM), proportional solenoid coil, proportional amplifier, simulation. ARTICLE LANGUAGE English
Publisher
International Information and Engineering Technology Association (IIETA)