Electronic Science and Technology ›› 2021, Vol. 34 ›› Issue (11): 88-94.doi: 10.16180/j.cnki.issn1007-7820.2021.11.014
ZHOU Jiuling1,MENG Juanjuan2,LI Yudong1
Received:2020-07-03
Online:2021-11-15
Published:2021-11-16
Supported by:CLC Number:
ZHOU Jiuling,MENG Juanjuan,LI Yudong. Study on Six Pulse Double Variable AC-AC Frequency Converter with Step Frequency, Voltage and Speed Regulation[J].Electronic Science and Technology, 2021, 34(11): 88-94.
Figure 1.
Main circuit structure of six pulse cycloconverter"
Figure 2.
Schematic diagram of two variable cosine intersection methods (16.67 Hz)"
Figure 3.
Schematic diagram of variable frequency and variable voltage speed regulation"
Figure 4.
Simulation model"
Figure 5.
Simulation of frequency switching and speed change (a)Simulation result of motor speed (b)Simulation result of motor torque (c)Simulation result of stator current (frequency switching) (d)Simulation result of stator current (speed change)"
Figure 6.
Simulation of sudden load increase of 3 N·m to 5 N·m (a)Simulation result of motor speed (3 N·m to 5 N·m) (b)Simulation result of motor torque (3 N·m to 5 N·m) (c)Simulation result of stator current (3 N·m to 5 N·m)"
Figure 7.
Simulation of sudden load increase of 3 N·m to 6 N·m (a)Simulation result of motor speed (3 N·m to 6 N·m) (b)Simulation result of motor torque(3 N·m to 6 N·m) (c)Simulation result of stator current(3 N·m to 6 N·m)"
Figure 8.
Simulation of sudden load increase of 3 N·m to 8 N·m (a)Simulation result of motor speed(3 N·m to 8 N·m) (b)Simulation result of motor torque(3 N·m to 8 N·m) (c)Simulation result of stator current(3 N·m to 8 N·m)"
Figure 9.
Simulation of sudden load drop of 6 N·m to 3 N·m (a)Simulation result of motor speed(6 N·m to 3 N·m) (b)Simulation result of motor torque (6 N·m to 3 N·m) (c)Simulation result of stator current (frequency switching) (d)Simulation result of stator current (speed increase) (e)Simulation result of stator current (load drop)"
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