מנוע זרם ישר.

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Presentation transcript:

מנוע זרם ישר

הסבר פעולה של מנוע DC בתנועה מבנה מנוע זרם ישר מנוע לזרם ישר כולל את החלקים הבאים: סטטור - גוף המנוע שהוא החלק הנייח רוטור (עוגן) - החלק הנייד (המסתובב) קולקטור (חצאי טבעות) ופחמים עקרון הפעולה באתרים : http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/motdc.html#c1 הסבר פעולה של מנוע DC בתנועה

עקרון פעולה

המרת האנרגיה והפסדים במנוע מנוע חשמלי אנרגיה חשמלית אנרגיה מכנית נצילות המנוע קטנה מ-1 Wout :אנרגיה מופקת בצורת תנועה Win :אנרגיה מושקעת בצורה חשמלית WD=Win-Wout אנרגיה המתבזבזת בצורת חום בתוך המנוע.

הפעלת מנוע זרם ישר קוטביות מתח ההפעלה קובעת את כוון הסיבוב (CW או CCW (.

בקרה מכנית של כוון מנוע Closed switches Polarity Effect A1 & A2 forward motor spins forward B1 & B2 reverse motor spins backward A1 & B1 brake motor acts as a brake None free motor floats freely צורת חיבור זו של המנוע נקראת גשר H ( H Bridge )

בקרה אלקטרונית של כיוון סיבוב המנוע A=“0” , D=“1” סיבוב CW - B=“0” , C=“1” סיבוב CCW