Description
Recognized internationally for its innovative approach to technical training, this next generation training system provides a revolutionary way of safely studying the characteristics of different motor types, mechanical systems for drivetrains, and different power supply methods—all within a compact, safe learning environment designed for electrical, mechanical, aerospace, and automotive engineers.
This applied learning solution is designed not just for the study of machine characteristics, but for the entire system: battery, drive, gearbox, dynamometer, and more. It includes a secure mounting base module, nine different types of machines with auto ID, a digital drive control box, and a PC-based application for advanced control of the different machine types.
In addition, an analogue 3-phase power supply box with testing motor, a battery simulator box, and several mechanical auxiliary modules for drivetrain testing can be integrated into the solution, providing comprehensive teaching and training opportunities.
Control Boxes
The new Electrical Machines training equipment from Matrix includes three control boxes. The digital drive box, analogue 3 phase box and battery simulator box. The main electrical machine teaching comes from using the digital drive box to interface between the hardware and the PC application.
Each box has the same touchscreen interface and dimension footprint, allowing for easy stacking in use and storing. If used individually then each box has flip out legs allowing for better viewing angle and operational use.
Simple 4 mm connections allow for easy safe connections to the modules.
Dynamometer
The Dynamometer is made up of a long shafted Permanent Magnet DC machine, free rotating between bearings mounted in a cradle. The Dynamometer cradle takes torque measurements in both directions of rotation: anti-clockwise and clockwise with a strain gauge linked to the hidden in the module.
The Dynamometer is fitted with two 4mm shrouded safety connectors which are used to add an electrical load to the machine and are also used as a DC machine (24V 50W) when testing machines as generators.
PC Software
The custom-built software allows students to investigate the function of the machines.
Using the 4 power outputs of the box students can configure the outputs to provide single or three phase AC, or DC as required.
The software allows a range of characteristics sweep tests to be carried on out machines with results plottable on-screen and data export to Excel.
The software also features an oscilloscope which plots drive waveforms.
Auto ID
This next generation offering now also features an auto ID system to automatically configure the software based on the specific modules that are connected, to save time and increase productivity.
Auto ID, automatically detects what motor has been connected to the dynamometer and applies the correct settings into the software. It also hides settings not applicable to that motor making use for students incredibly easy.
Dynamometer
The Dynamometer is made up of a long shafted Permanent Magnet DC machine, free rotating between bearings mounted in a cradle. The Dynamometer cradle takes torque measurements in both directions of rotation: anti-clockwise and clockwise with a strain gauge linked to the hidden in the module. The Dynamometer is fitted with two 4mm shrouded safety connectors which are used to add an electrical load to the machine and are also used as a DC machine (24V 50W) when testing machines as generators with temperature monitor and auto ID built in.
Brushless AC/DC Motor
The Brushless DC motor is a small 24V 52 watt device with 8mm shaft and safety coupling. The 6 pole device is driven by a 24V three phase supply and has Hall effect sensors to sense rotor position. Temperate monitor and auto ID built in.
Permanent magnet DC Motor
The 24V 50W Permanent magnet DC motor is a simple machine with two magnetic poles for the stator and a wound rotor with carbon brushes. The machine is fitted with 4mm shrouded connectors. Temperature monitor and auto ID built in.
Single Phase Induction Motor
The single phase 24V 35W induction motor has a 4 pole wound stator with two windings for start and run. Connection is provided on 4mm shrouded connectors with a common terminal, start terminal and run terminal. Requires an external capacitor (included inside the Control unit) to start rotation. Temperature monitor and auto ID built in.
Series Motor
The series motor can be driven from 24V AC or 24V DC and has a 2 pole wound stator and a wound rotor with carbon brushes. Rotor and stator connections are made on separate 4mm shrouded connectors. Temperature monitor and auto ID built in.
Shunt Motor
The shunt motor is a 24V device with a 2 pole wound stator a wound rotor with carbon brushes. Rotor and stator connections are made on separate 4mm shrouded connectors so that the field and armature can be excited by separate DC power supplies. Temperature monitor and auto ID built in.
Three Phase Induction Motor
The three phase 24V, 35W, 50Hz induction motor has a 2 pole wound stator. Connection for each winding is provided on 4mm shrouded safety connectors. Temperature monitor and auto ID built in. Connections can be wired up in star and delta configurations.
Stepper Motor
The stepper is a NEMA23, 2 phase, 8mm shaft motor. With step angle of 1.8deg, 2.4Nm holding torque rated at 4A it provides high torque and accuracy for testing. It has a phase resistance of 0.9ohms and inductance of 3.4mH +-20% (1KHz). Temperature monitor and auto ID built in.
Gearbox 1:5 / 5:1
The planetary gearbox has an efficiency of 90% with Backlash at No-load: <=30arcmin. It is a low noise gearbox at <=55dB with a IP rating of IP54. The mechanical module has the auto ID built in.
(Gearbox 1:5 and 5:1 are two seperate modules)
Flywheel and Clutch
An electromagnetic clutch is coupled to the motor side of the module, with a flywheel coupled to the dynamometer shaft allowing for slip condition and inertia testing to be conducted. A PWM control signal allows for variable control of the clutch engagement between 0-24v. A safety shroud covers the flywheel during operation. Auto ID built in.
Backlash module
The backlash module is designed to demonstrate the principles of intermeshing gears and the impact of backlash on motion systems. The module consists of the 2 60mm diameter gears. One is coupled to the main shaft which is driven by a select motor in the Matrix electrical machines system and couple to the dyno at the other end, or encoder positional feedback. The driven gear is coupled to a free running independent shaft which is was attached to an encoder for further positional feedback.
Locked Rotor Module
The locked rotor module allows for zero RPM stall torque testing of the motors and free running tests. Within the module is a load cell to take stall torque values for data acquisition into the software and calculation of the characteristics of the machine under test. Auto ID built in.
