1.Overview
The Electric drive and control training workbench is designed according to the requirements of the experimental syllabus such as “Power Electronics Technology” and “Electric Power Drive Automatic Control System”, covering the vocational training project including “Power Electronics Technology (or semiconductor power flow) established by various universities and colleges. Experimental projects required by professional courses such as “DC Speed Regulation”, “AC Speed Control”,“Motor Control”,“Electric Power Drive Automatic Control System’ promoted by engineer vocational college, vocation institute, engineer training school.
2.Configuration
The technical training workbench mainly composed of teaching platform, power supply module, Three-phase isolated power supply, three-phase synchronous signal power supply, Unijunction transistor trigger circuit, sine wave trigger circuit, sawtooth wave synchronous phase-shift trigger circuit, one-way thyristor, two-way thyristor and other circuits, DSP (digital signal processor) control circuit etc.
3.Training contents
1. Power electronics experiment:
– Unijunction transistor trigger circuit
-Sine wave synchronous phase-shift trigger circuit
– Single-phase half-wave controllable rectifier circuit experiment
– Single-phase bridge controllable rectifier circuit experiment
-Single-phase bridge fully controlled rectifier circuit experiment
-Three-phase half-wave controllable rectification circuit experiment
-Three-phase bridge semi-controlled rectifier circuit experiment
– Three-phase bridge fully controlled rectifier circuit experiment
– Single-phase AC voltage regulation circuit experiment
-Single-phase AC power regulation circuit experiment
– Three-phase AC voltage regulation circuit experiment
– Single-phase chop-controlled AC
-voltage regulation circuit experiment
2. Electric drive and control experiment
-Start-up and speed regulation experiment of DC shunt motor
-DC generator experiment
– Open-loop thyristor DC speed control system experiment
– Single closed loop (voltage single closed loop, speed single closed loop, current single closed loop) control thyristor irreversible DC speed regulation system experiment
– Experiment of current and speed double closed-loop control thyristor irreversible DC speed regulation system
– Current speed double closed-loop control reversible DC pulse width speed regulation system (H bridge, IGBT)
– Three-phase asynchronous motor voltage regulation speed regulation and soft start experiment
– Single-phase, three-phase sine wave pulse width modulation SPWM frequency conversion speed regulation system experiment
