Regulation of electric drive coordinations

STATIC CHARACTERISTICS OF EXECUTIVE MECHANISMS AND OF ELECTRIC MOTORS

MECHANICS OF ELECTRIC

2.1 Elements of electric drive mechanical part

2.2 Equation for mechanical motion

2.3 Computation schemes of electric drive mechanical part

2.4 Heavy-mass mechanical systems

2.5 Typical static loads of electric drive

2.6 Operation modes of electric drive

3.1 Mechanisms

3.2 Electric motors

3.3 Static mechanical and electromechanical characteristics of DC independent excitation electric motor

3.4 Operation modes of electric motors

3.5 Static characteristics of DC independent excitation motor in braking modes

3.5.1 Recuperative braking mode

3.5.2 Counter switching braking mode

3.5.3 Electrodynamic braking mode

3.5.4 Applying electrical braking methods of electric drive

3.6 Static mechanical characteristics of DC series excitation electric motor

3.7 Static characteristics of DC series excitation electric motor in braking modes

3.7.1 Counter switching braking mode

3.7.2 Electrodynamic braking mode

3.8 Static mechanical characteristics of DC mixed excitation electric motor

3.9 Static characteristics of DC mixed excitation electric motor in braking modes

3.10 Static mechanical characteristics of asynchronous motor (AM)

3.10.1 Equivalent scheme of asynchronous motors

3.10.2 Analytic expression of AM mechanical static characteristic

3.11 AM mechanical static characteristic in S and M coordinates

3.12 Analysis of AM mechanical characteristic M=f(S), presented as simplified Closs`s formula

3.13 AM mechanical characteristic in ω and M coordinates (dependence ω= f (M))

3.14 Features abstract of AM mechanical characteristics

3.15 AM mechanical characteristics in braking modes

3.15.1 Recuperative braking (with giving up the energy into main)

3.15.2 Counter switching braking

3.15.3 Dynamic braking

3.15.3.1 Dynamic braking at independent excitation

3.15.3.2 Dynamic braking with self excitation

3.16 Mechanical static and angular characteristic of synchronous motors (SM)

3.16.1 Two modes of SM mechanical characteristics

3.16.2 SM angular characteristic

3.16.3 SM mechanical static characteristics in braking modes

3.17 Mechanical static characteristics of the motor in multimotor drive

4.1 Basic generalized indexes of electric drive speed regulation

4.1.1 Regulation accuracy

4.1.2 Regulation range

4.1.3 Regulation fluency

4.1.4 Regulation stability

4.1.5 Regulation direction

4.1.6 Admissible load at regulation range

4.1.7 Speed of operation, overshoot fluctuation

4.1.8 Efficiency of speed regulation

4.2 The methods of speed regulation

4.3 Basic speed regulation methods of DC independent excitation electric motor

4.3.1 Angular speed regulation by additional resistances in armature circuit

4.3.2 Speed regulation of DC motor with independent excitation by changing of magnetic flux value

4.3.3 Speed regulation of DC motor with independent excitation by armature shunting

4.3.4 Speed regulation of DC motor with independent excitation by changing armature supply voltage

4.4 Basic speed regulation methods of DC motor with series excitation

4.4.1 Speed regulation of DC motor with series excitation by resistors in armature circuit

4.4.2 Speed regulation of DC motor with series excitation by changing of magnetic flux

4.4.3 Speed regulation of DC motor with series excitation by changing of supply voltage

4.5 Coordinates regulation of asynchronous motors

4.5.1 Speed regulation of AM by resistors in rotor circuit

4.5.2 Coordinates regulation of AM by resistors in stator circuit

4.5.3 Speed regulation of AM by changing number of pole pairs

4.5.4 Coordinates regulation of AM by changing of stator supply voltage

4.5.5 Frequency regulation

Дата добавления: 2014-01-05