Computer Controlled Teaching Unit for the Study of Power Electronics (Converters:DC/AC+AC/DC+DC/DC+AC/AC)

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TECNEL. Unit:

Diagram in the front panel with similar distribution that the elements in the real unit

Steel box.

Front panel:

• Diodes module: 6 diodes.
• Thyristors module: 6 thyristors.
• IGBTS Module: 6 IGBTS.
• Snubber net.
• Sensors module:

• 4 Voltage sensors.
• 2 Current sensors.

• Power supply connections for Vr, Vs, Vt, Neutral and Ground.
• Practices schemes.

Back panel:

• Data Acquisition Board Connector (SCSI connector).
• Tachodynamo connector.
• Main fuses (Vr, Vs, Vt) and LEDs.
• Circuit breaker (main switch).

Single-phase driver.
Three-phase driver.
IGBT driver.
TSI board.
PIC board.
SKHI61 board.
Four relays board.
2 Three-phase relays.
Commuted power supply.
Three-phase magnetothermal.
Control Interface.

DAB. Data Acquisition Board:
PCI Data acquisition board (National Instruments) to be placed in a computer slot.
Bus PCI.

• Analog input:

• Number of channels= 16 single-ended or 8 differential. Resolution=16 bits, 1 in 65536.
• Sampling rate up to: 250 KSPS (Kilo samples per second).
• Input range (V)= 10V. Data transfers=DMA, interrupts, programmed I/0. Number of DMA
• channels=6.

• Analog output:

• Number of channels=2. Resolution=16 bits, 1 in 65536. Maximum output rate up to:
• 833 KS/s.
• Output range(V)= 10V. Data transfers=DMA, interrupts, programmed I/0.

• Digital Input/Output:

• Number of channels=24 inputs/outputs. D0 or DI Sample Clock frequency: 0 to 1 MHz.
• Timing: Counter/timers=2. Resolution: Counter/timers: 32 bits.

TECNEL/CCSOF. Computer Control+Data Acquisition+Data Management
Software:
Compatible with all actual Windows operating systems. Graphic and intuitive simulation of the process in screen. Compatible with the industry standards. Registration and visualization of all process variables in an automatic and simultaneously way. Flexible open and multicontrol software, developed with actual windows graphic systems, acting simultaneously on all process parameters. Management, processing, comparison and storage of data. Sampling rate up to 250,000 data per second. Comparative analysis of the obtained data, after to the process and modification of the conditions during the process.
Cables and Accessories, for normal operation.
Manuals:
This unit is supplied with 8 manuals: Required Services, Assembly and Installation, Interface
and Control Software, Starting-up, Safety, Maintenance, Calibration & Practices Manuals.

Power Electronics Computer Aided Design and Simulation Software

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PECADS INTRODUCE YOU TO THE SIMULATION WORLD. CONVERTER TYPES (Basic and advanced versions):

• AC/DC Alternating Current/Direct Current.
• DC/AC Direct Current/Alternating Current.
• AC/AC Alternating Current/Alternating Current.
• DC/DC Direct Current/Direct Current.

MAIN CHARACTERISTICS

• Specific Software packages for any type of converters

• Basic Version: Open loop practical tutorial
• Advanced Version: Close loop practical tutorials, including industrial applications. Adjustables control loops.

• Operates on any PC type and any graphic card.
• Real structure simulation. Simulated PC signals and scope real signals without appreciable differences

• Dynamic Simulation with succesive cycles without limit of time.
• Graphic visualization with auto-scaling of magnitudes: voltages, currents, control, signals, etc.
• FFT Armonic analysis, maximal, average and RMS values for every signal in each simulation cycle

• Didactic Hardware equipment, TECNEL, as a complement
• Includes industrial applications simulation, in open and close loop.

• AC/DC Battery Charger, DC Motors Control, Passive Loads, etc.
• DC/AC UPS, Field Oriented Control of AC Motors, Passive Loads, etc.
• DC/DC Chopper, Booster, Buck-Booster, Cuk, DC Motors Control, etc.
• AC/AC Cycloconverters: UFC, SSFC, Triangular Modulation including CAM control, UPS, Field Oriented Control of AC Motors Pasive Loads, etc.

• Future expansions:

         Using the professional package, you can design the regulation loops and the power semiconductors sizing:

• System transfer function determined by identification.
• Digital regulators, microprocessor based.
• Dynamic and steady state semiconductor sizing.
• Close loop simulation for the total system.

Computer Controlled Advanced Industrial Servosystems Trainer

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SERIN/CA. Unit:
The SERIN/CA trainer consists on an Control Interface Box connected to a three-phase motor and to a computer (PC) (not included).
The control interface has a resolver for three-phase motors that controls the speed, position and current of the motor.
The RS232 communication between the control interface and the PC provides the SERIN/CA the possibility of commanding the motor from the PC and visualize the most important signals of the motor.
Velocity, Position and Torque Control.
It allows predefined moves and programming.
Control Interface Box:
Front panel:

• 3 Digital outputs:

They have a green LED that indicates if the output is active or not. Two of them have some functions
defined by defect, but they can be changed by any other function using the software.

• Output 1: this output has the “Fault Reset” function enabled for defect. It can be used to indicate a

problem with the drive.

• Output 2: this output has the “Brake” function enabled.

• Emulative encoder outputs:

Two pair of outputs (CH A Out, CH B Out and their respective denied outputs) that are TTL signals of incremental position generated by the resolver feedback. These outputs are in quadrature to simulate an optic encoder.
One pair of outputs (CH Z Out and their denied) that TTL works as marker of pulses.
Analog output 4 (relay):this output is a relay, and it belongs together with the output 4 that it can be in
the software inside the I/O digital label.
Analog outputs of the DAC monitor: these analog outputs are monitored points of general character.
Each DAC monitor can be controlled by software to be a certain value of the internal variables.
6 Digital inputs: digital inputs for those signals that are introduced to enable the different available
functions in the software.
6 Buttons: they are good to enable the digital inputs. When the button is pressed, the digital input will be
activated, making what has been defined by the software.
6 Switches: they have the same function as the buttons, but with the only difference that they are switches
and, therefore, maintain the position fixed (open or closed).
Switch outfitter of digital inputs: there is a switch that enables the digital inputs. When the green LED is
on, the inputs will be enabled.
Analog input: this input allows an analog use directly of the user. It is an A/D input.
Voltage supply: 3 sources of continuous in the unit. One of +24 V. DC, another of +12V. DC
and other of -12V. DC.
2 Potentiometers: they present three pegs.
Ignition switch: when the unit is on, the red LED is active an lighting.
Back panel:
Voltage supply that feeds the unit with 220 V of alternating current.
Three-phase output when solving: it is a three-phase output that feeds when you are solving and,
therefore, allows their movement.
Connection port in series: it is a connection peg to connect the unit with the PC by the port in series, in
order to allow the software to manage the encoder.
Connection with the feedback: it is a connection with the motor feedback. It allows the encoder to
manage the motor.
Motor:
AC motor, 0.7kW, 2.8A ac, 4200 rpm, 320V dc., 7.2 Nm., IP65, Sensor RESOLVER :1 Speed,
1X/RX, 3 phase.
SERIN/CA/CCSOF. Computer Control+Data Acquisition+Data Management Software:
Compatible with actual Windows operating systems. Graphic and intuitive simulation of the process in
screen. Compatible with the industry standards.
Registration and visualization of all process variables in an automatic and simultaneously way.
Flexible open and multicontrol software, developed with actual windows graphic systems, acting
simultaneously on all process parameters.
Management, processing, comparison and storage of data.
Comparative analysis of the obtained data, after to the process and modification of the conditions during the
process.
Cables and Accessories, for normal operation.
Manuals:
This unit is supplied with 8 manuals: Required Services, Assembly and Installation, Interface and Control
Software, Starting-up, Safety, Maintenance, Calibration, Practices Manuals.

Computer Controlled Advanced Industrial Servosystems Trainer (for DC motors)

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SERIN/CC. Unit:

It is formed by a Control Interface Box and a Direct Current Motor and Encoder Module. The Control Interface Box has a 4-quadrants servo amplifier for DC motors that controls the motor speed, position and current of the motor. In order to do this control the feedback is done thanks to an encoder. The RS232 communication between the Control Interface Box and the computer (PC) provides the possibility of commanding the motor from the PC and to visualize the most important signals of the motor. The 4-quadrant servo amplifier controls the motor operation and the braking operation in both rotation directions clockwise and counterclockwise.

Velocity, Position and Torque Control

It allows predefined moves and programming.
Control Interface Box:
Front panel:
Diagram in the front panel with similar distribution that the elements in the real unit.
7 Digital outputs:
They have led’s that indicate if the outputs are active or not.

• Output 1: this output indicates when the system has been referenced already.
• Output 2: this output indicates when a target position is reached.
• Output 3: this output indicates when the motor is running.
• Output 4: this output indicates when a command can not be executed.
• Output 5: this output indicates when an error occurs.
• Output 6: this output is a user definable PWM-output (5V, 0-100% duty cycle, 50kHz).
• Output 7: this output is the common cathode of the freewheeling diode of the low side drivers.

13 Digital inputs:
7 User definable digital inputs for process control.
1 Digital input (trigger signal).
3 Digital inputs: reference, left limit and right limit:
DI reference: digital input for reference switch.
DI left limit: digital input for left limit switch of a linear unit.
DI right limit: digital input for right limit switch of a linear unit.

2 Digital inputs power stage and stop:

DI power stage: digital input for enabling the power stage.
DI stop: digital input for switching the regulation off if the signal is removed.
2 Analog inputs with voltages in the range of 0-5V.
2 Potentiometers to select the value of the analog inputs (0-5 V DC), these potentiometers are enabled by a
commuting switch placed next to them.
Ignition Switch. When the unit is on, the red LED is active and lighting.
Back panel:
Voltage supply. There is a voltage supply that feeds the unit with 220 V of alternating current.
Motor power supply. It is a 24 V DC motor power supply (it is a three wires connection motor +, motor - ,and
one taking to earth).
Connection port in series. It is a connection plug to connect the Control Interface with the PC by the RS-232
port, in order to allow the software to manage the motor.
Connection with the Feedback. It is a connection with the motor Feedback. It allows the encoder to manage
the motor.
Direct Current Motor and Encoder Module:
DCMotor, 90W. Position, speed and current are controlled by the Control Interface.
Digital encoder, 500 pulses per revolution, with RS232 communication port.
2 Power supply wires (one for the motor and other for the Control Interface).
2Communication RS232 wires (one from the Control Interface to the computer (PC) and other from the
Control Interface to the encoder).

SERIN/CC/CCSOF. Computer Control+Data Acquisition+Data Management Software:

Compatible with actual Windows operating systems. Graphic and intuitive simulation of the process in screen.
Compatible with the industry standards. Registration and visualization of all process variables in an automatic and simultaneously way Flexible open and multicontrol software, developed with actual windows graphic systems, acting simultaneously on all process parameters.Management, processing, comparison and storage of dataComparative analysis of the obtained data, after to the process and modification of the conditions during the process.

Cables and Accessories.
Manuals:

This unit is supplied with 8 manuals: Required Services, Assembly and Installation, Interface and Control Software, Starting-up, Safety, Maintenance, Calibration & Practices Manuals.

Servosystems Trainer (DC motors)

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DESCRIPTION

“SERIN/CCB” is an unit whose goal is studying low power servo systems. It is a low power DC motor speed control trainer that has a breakdown simulator. This trainer is a basic version of the Advanced and Computerised “SERIN/CC” Trainer, being advisable for an introductory study of closed and open loop control systems. It consists of an electromechanical unit with an DC motor and a tachometer, attached through an inertial wheel, mounted on a steel box that contains the power stage and the acquisition and control board, as well as the supervision and control software. This set allows open and closed loop control, control and generation of command variable, ramp generator, proportional error amplifier and PID, current limiter, PWM modulator, turn inversion control, start and stop control, braking control, and breakdown simulator, that allows introducing a great number of misfunctionings so that students may diagnose nature and location of the fault, without risking the integrity of the equipment. Unit control may be done manually, on the unit itself, basically or in a more advance way through the control software SCADA. This control software
can do two kinds of control: Open-loop and Closed-loop control.
The base unit has four different parts as seen on the front panel:

• Connection zone for motor and tachogenerator.
• Manual or Compute rised Speed control. There is a lever-like switch for selecting the kind of control.
• PID zone. Here, the values of the PID constants can be manipulated (Proportional, Integral and Derivative). This functionality is only available for

PC mode, the speed control lever has to point to PC.

• Turning and stop control zone. Allows changing the turning sense and stopping the motor.

Simple integrated circuits to be able to analyse independently each functional stage.
Visible components with 2 mm connectors for voltage and current measurement.
Control through PWM pulses and power stage configured with MOSFET transistors.
SPECIFICATION

The trainer includes:
Base Unit:

• Steel box.
• Diagram in the front panel with similar distribution that the elements in the real unit.
• Electromechanic unit.
• Tachometric adaptor.
• Generation and control of set point.
• Ramp generator, as well as sinusoidal, triangular and square wave generator.
• PWM modulator.
• Open loop control.
• Close loop control:
• Proportional Control (P).
• Integrative Proportional Control (PI).
• Proportional derivative Control (PD).
• Proportional Integrative derivative control (PID).
• Current limiter.
• Turn inversion control.
• Stop/starting control.
• Power stage and excitation of the power stage.
• Brake control.
• Fault simulator that allows the entries of a considerable amount of disfunctions in order to the students diagnose its nature and find
• out the components that cause them. Without taking risks to provoke any damage in the unit.
• Type of faults included in the unit:
• Fault 1: The absolute value of the feedback signal from the tachogenerator is not calculated for its subtraction from the
• reference, thus, for one of the turning senses, the error is wrong.
• Fault 2: The value of the Proportional constant of the PID is divided by ten with the user unable to detect it but its effect.
• Fault 3: The value of the Integral constant of the PID is divided by ten with the user unable to detect it but its effect.
• Fault 4: The value of the Derivative constant of the PID is divided by ten with the user unable to detect it but its effect.
• Fault 5: The signal from the tachogenerator is modified, making the PID control to believe that the speed is ten times lower to
• the real one.
• None of these faults are exclusive, being possible to combine them.
• Direct current motor (DC) and tachometric generator.
• Computer Control Software.
• Cables and accessories, necessary for its correct operation.
• Manuals:
• This unit is supplied with several manuals: Required Services, Assembly and Installation, Starting-up, Safety, Interface and Control Software,
• Maintenance, Calibration & Practices and simulation of faults Manuals.

Servosystems and Industrial Drivers Simulation Software

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DESCRIPTION

Designed to work in a , Windows operating system permitting the easy entering of data. The multitask  environment, based on Windows graphics, offers the possibility of displaying on screen different configurations and results. In this way, you can compare the effects produced by variations in any system element. It consists of three motor simulation modules: DC "SERCC", AC"SERCA", andWard-Leonhard system "WL".

SPECIFICATION

• The " SERVOS / SOF " Servosystems and Industrial Drivers Simulation Software, in English
• Ready for installation Operating system by means of floppy disk in computer (PC) 486 or higher , and immediate operation.
• Operating system Windows

Computer Controlled Teaching Unit for the Study of Regulation and Control

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RYC. Unit:

• Metallic
• Diagram in the front panel with similar distribution to the elements in the real unit.
• 3 Modules of Controller of 1st Order.
• 3 Modules of Integrator.
• 2 Modules of Inverter Amplifier.
• Module of Inverter Reductor.
• Module of Negative Zero.
• Module of Positive Zero.
• Module of Hysteresis.
• Module of Limiter.
• Module of Controller of 2nd Order.
• Module of Adding.
• 14 Capacitors from 1mF to100mF.
• 6 Diodes.
• 34 Operational Amplifiers.
• 33 Potentiometers.
• 186 Resistances.
• 2 Transistors.
• On/Off switch.
• Fuse.
• Connector to PC.
• Control Interface.

DAB. Data Acquisition Board: PCI Data acquisition board (National Instruments) to be placed in a computer slot. Bus PCI Analog input: Channels= 16 single-ended or 8 differential. Resolution=16 bits, 1 in 65536.Sampling rate up to: 250 KS/s (Kilo samples per second). Input range (V)= 10V.Data transfers=DMA, interrupts, programmed I/0. Number of DMA channels= Analog output:Channels=2. Resolution=16 bits, 1 in 65536. Maximum output rate up to: 833 KS/s. Output range(V)= 10V. Data transfers=DMA, interrupts, programmed I/0.Digital Input/Output: Channels=24 inputs/outputs. D0 or DI Sample Clock frequency: 0 to 1 MHz.Timing: Counter/timers=2. Resolution: Counter/timers: 32 bits.

RYC/CCSOF. Computer Control+Data Acquisition+Data Management Software: Compatible with actual Windows operating systems. Graphic and intuitive simulation of the process I screen. Compatible with the industry standards.Registration and visualization of all process variables in an automatic and simultaneous way.Flexible open and multicontrol software, developed with actual windows graphic systems, actingsimultaneously on all process parameters.Management, processing and comparison of data.Sampling velocity up to 250,000 data per second.Comparative analysis of the obtained data, after the process and modification of the conditions duringthe process.

Cables and Accessories, for normal operation.

Manuals: This unit is supplied with 8 manuals: Required Services, Assembly and Installation, Interface and Control Software, Starting-up, Safety, Maintenance, Calibration & Practices Manuals.box.