Download instructions to tenderers

Code
Description
DL WIND-A1G
WIND ENERGY MODULAR TRAINER WITH CONNECTION TO MAINS - didactic equipment
Didactic system for the theoretical and practical study of the generation of electric energy from a wind turbine and its inlet in the mains network. The
device must include a set of control modules to be mounted on a vertical two level frame, measures and applications, a wind turbine, a stepper motor
to drive the wind generator in absence of wind and descriptive and practical manuals.
In particular, the trainer shall include:
Module for measuring electric and wind parameters
DC/AC conversion module
Braking resistance, 250 W, 3 Ohm
Mains lamps module
Energy measurement module
Differential magneto-thermal switch
Network distributor
Motor kit for driving the wind turbine, composed of a stepper motor and a 300 W power supply
Wind generator 400W, 12Vac.
Wind sensor: anemometer and wind direction sensor mounted on a stand
It must also include:
Two level frame
Set of interconnecting wires
Descriptive and practical manual
Wind turbine instruction manual
The trainer must include a software for data acquisition and processing.
Description of items included in this trainer.
AEROGENERATOR
Rated Power 400W
Rated AC Motor 12V three phase
Rated Current 33A/25A
Rated Speedy 640r/m
Max Power 600W
Start-up wind speed 2.5m/s
Cut-in wind speed 3.5m/s
Cut-out wind speed 15m/s
Rated wind speed 12m/s
Engine Three-phase permanent magnet generator
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Description
Rotor diameter 1230 mm
Output line anti-winding device: Overall three-phase commutator
Wind protection: Tip stall protection+turned protection+electromagnetic brake
Life span 15 years
Equipment surface protection: Aluminum oxide+plastic coating
Working temperature -40°c to 70°c
Weight 8.5kg
POWER SUPPLY FOR STEPPER MOTOR - designed to meet the needs of motor control for the trainer, providing a specific output (PWM)
from a mains voltage.
The adjustment of the speed of the motor (corresponding to a specific configuration of voltage and frequency of the output signals on the phases of
the motor) shall be performed manually by the operator or automatically by an external analog signal.
The output voltage must be galvanically isolated from the mains and it must be protected against overload and short circuits through an electronic
fuse. Technical specification:
Nominal output power 500 W
Nominal output current 6.2 A
Mains voltage 90 ‐ 264 V AC
Mains frequency 47 ‐ 63 Hz
Input current 115 V AC 1.7 A / 230 V AC 0.75 A
Regulation technology microcontroller (PWM)
Control signal input 0 ‐ 10 V DC
On the front panel the following elements must be included:
Power switch / Lamp indicator ON/OFF; Control selector: manual ‐ off ‐ automatic; Connectors of control signal input; Potentiometer for manual
regulation; Reset button; Alert led.
On the back side the following elements must be included:
Connector for power the motor; Mains sockets; Connector for programming system.
STEPPER MOTOR used to simulate wind condition, if the trainer will be used indoor or in absence of wind:
Voltage VDC 2.1
AMPS/PHASE 6.36
Resistance / Phase (Ohms)@25°C 0.33±15%
Inductance / Phase (mH) @1KHz 3.0 ± 20%
Holding Torque (Nm) [lb-in] 5.94 [52.57]
Detent Torque (Nm) [lb-in] 0.21 [1.8585]
Step angle (°) ± Step accuracy 1.8 ± 5% (NON-ACCUM)
Back-EMF (V) (300 U/min) 23.15
Rotor Inertia (kg-m2) [Ib-in2] 2.7x10-4 [0.923]
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Description
Weight (KG) [lb] 3.4 [7.5]
Temperature rise : max 80°C (motor standstill; for 2 phase energized)
Ambient temperature -10°C ~ 50°C
Insulation resistance100 MOhm (under normal temperature and humidity)
Insulation class B 130°
Dielectric strength 500VAC for 1 min. (between the motor coils and the motor case)
Ambient humidity max.85% (no condensation)
CIRCUIT BREAKER MODULE - protective device that in this trainer shall be used to disconnect the system of generation of wind energy from the mains.
It must be also used as a security device for any failure or accidental short circuits. The module must be constituted by an automatic differential switch
and it shall be connected to the single phase mains.
Technical specification:
Rated current In (A) 6
Rated short‐circuit power (kA) 6
Intervention threshold (mA) 30
Class AC
Number of poles 1+N
Norma EN 61009
Dissipated power 5
Rated voltage AC (V) 230
Voltage min‐max AC (V) 100‐255
Frequency (Hz) 50/60
On the front panel, the module must include the following elements:
Input connectors for AC voltage; Output connectors for AC voltage; Power switch ON/OFF; Test button.
NETWORK DISTRIBUTOR - module must provide two types of output voltage:
AC voltage
DC voltage
On the front panel, the module must include the following elements:
Status led; Power switch ON/OFF; Output connectors 12 V DC; Output connectors AC.
On the back side, mains sockets must be included.
MAINS LAMPS - module that must provide a electrical load. It must be made of two loads for AC voltage 230 V ‐ 50 Hz.
The upper one must be a 35 W halogen lamp and the lower one must be a 3 W led lamp. They must be connected in parallel and can be switched
on/off independently.
On the front panel, the module must include the following elements:
Dichroic lamp; Switch ON/OFF for dichroic lamp; Led lamp; Switch ON/OFF for led lamp; Input connectors for AC voltage.
MEASUREMENT MODULE FOR WIND ENERGY - It must include a series of instruments:
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‐ Aerogen Electrical Data
‐ Load or Battery Electrical Data
‐ AC Electrical Data
‐ Wind Sensors Data
It must provide DC, AC and environmental measurements.
All instruments must show readings using the automatic decimal point position, starting from 1/1000 up to the maximum value of each measurement.
There must be a power switch ON/OFF and the module for its operation shall need to be supplied with 12 V DC voltage. Input connectors of signals
shall be placed on the left of each instrument and the output connectors shall be on the right.
Communication terminals shall be located on the right low side of the panel; two RS485 connectors, one male and one female, must be available for
the connection with the PC running the acquisition software and/or with other modules in a chain configuration.
Instruments must support MODBUS RTU protocol over RS485 interface, used by the software application, available separately, to perform a guided
analysis of the electrical characteristics on the modules of the trainer.
The module must include 4 multifunction displays:
No.2 for DC Measurements and displaying data for Voltage, Power and Current:
DC voltage ± 65V
DC current ± 20A
DC power autoscale
No. 1 display for AC measurement:
0-265V
0-20A
Power Meter
No. 1 display showing data for:
Wind speed
Input Range 0 ‐ 45 m/s
Resolution 1/10
Wind direction
Input Range 0 – 360°
Resolution 22°
On the front panel, the module must include the following elements:
Power switch ON/OFF; Input connectors for DC voltage; RS485 terminals; Multifunction display; Input connectors for signals DC; Input connectors for
signals AC; Output connectors for signals DC; Output connectors for signals AC; Connector for anemometer and wind direction sensor.
ENERGY MEASUREMENT MODULE - composed of a multifunction instrument for voltage network.
Its main functions must be: measuring of voltages, currents, power, energy, frequency, run hour, THD and its main characteristic shall be: LCD large
display with navigation buttons, 8 digit counter, automatic decimal point, reading update 1.1 sec, RS485 communication, programmable external.
Current must be measured with element that shall have almost zero resistance, and voltage shall be measured with element with huge resistance.
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Description
On the front panel, this module must include the following elements:
Power switch ON/OFF; LCD display; Input connectors AC voltage; Output connectors AC voltage; RS485 port communication.
INVERTER GRID THREE-PHASE (WIND) - grid tie power inverter performing several functions inside.
In input, the three‐phase AC voltage generated from the wind turbine must be converted into DC voltage by the diode bridge and then stabilized by the
DC‐DC converter. In output, the DC voltage must be converted into AC voltage by inverter. The output value of AC voltage must be equal to grid mains.
To obtain this control circuits like Sensing & Scaling, PLL controller and PWM controller must be used.
The protection block must be used to monitor the internal parameters and it shall be activated in case of overload, high temperature, failure and grid
mains OFF. The low pass filter block must be used to remove low‐frequency noise.
Technical specification
Normal AC Output Power 300 W
Maximum AC Output Power 360 W
AC Output Voltage Range 190 V ~ 260 V
AC Output Frequency Range 46 Hz ~ 65 Hz
AC Input Voltage Range 10 V ~ 30 V
Peak Inverter Efficiency 95%
MPPT Function yes
Over Current Protection yes
Reverse Polarity Protection yes
Island Protection yes
Features:
Generates pure Sine Wave
Plug and Play Design, simply plug into an outlet (GFI), no hard‐wiring
Maximum Power Point Tracking (MPPT) ‐ optimize power output
Stackable (connect in parallel for higher output)
Island protection: Inverter will shut down during black outs.
Simple and safe installation
Reverse polarity protection
Constant power output
Low distortion output on all ranges
Allows different power factor from loads
Does not require rewiring of existing electronics
LED indicators to reflect power output rate
Compact and light‐weight design
On the front panel, this module must include the following elements:
Input connectors for wind turbine; Input/output connectors for mains; Connectors for DUMP R; Island Protection indicator; Generated energy
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Description
indicators.
BRAKING RESISTANCE – consisting in a DUMP resistor of grid tie power inverter.
Material type Ceramic
Dissipate Power 400 W
Connectors for DUMP R must be included on the front panel.
The trainer must be supplied with two level vertical frame for the housing of the modules – dim. 1500 x 800 h. mm.
It must be possible to perform the following exercises:
 Identification of the components and association with their function
Interpretation of diagrams and association with their objective
Measurement of wind speed
Analysis of the behavior of the wind turbine
Assembly of the proposed installations
Analysis of the operation of the installations once assembled
The trainer must include a set of interconnecting wires and it must be supplied with a theoretical and practical manual in English language.
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