电力拖动 第二单元

电力拖动课程第二单元笔记整理，全英文。电力拖动是指以电动机作为原动机拖动机械设备运动的一种拖动方式。又称电机传动。

chapter 2

• calculation
  • special cases
    • thin-walled
    • Hollow cylinder
    • Solid cylinder
    • 
  • three examples
    • direction definition of electric drive system
    • simple hoist system
      • 
        • 
    • linear & rotating motion
      • 
        • 
  • gears & belts transmission
    • 
      • 
        • wr=wr(whole length is same)
      • 
      • 
    • gear transmisson
      • 
        • 
        • 
    • rotational to translational transmission
      • 
        • 
          • -r Fl
  • 4-quadrant electric drive systems
    • 
      • 1,2 for bus
      • 1,4 for elevator
  • know
    • joint Speed-Torque characteristics
      • 
    • bidirection
      • bus
        • 
      • elevator
        • 
• speed regulation
  • stastic error rate
    • 
    • 
  • speed regulation range
    • 
      • 
• conditions for stable operational
  • 
    • dTe/dn<dTl/dn
  • 
    • 
• equation
  • energy
    • between kinetic and torque
      • 
  • power
    • 
      • lossless
  • Torque
    • moment of inertia
      • 
    •