The Computer Controlled Smart Grids Application, “AEL-BSGC”, has been designed to study the Smart Grids in the generation, transmission, distribution and load consumption fields.
Students and teachers of universities and research laboratories schools can easily study and investigate how a real Smart Grid works since electrical energy is produced till it is consumed, analyzing problems and solutions in each part of the process or as the whole. The AEL-BSGC includes a 1 kVA Three-Phase Synchronous Generator-Motor group which is used to study the production of electricity. The synchronous generator is coupled to a three-phase induction motor of squirrel cage controlled through a variable frequency drive. With the frequency controller the user can control (manual and automatic) the induction motor speed and reproduce any power generation condition. In addition, the generator excitation is controlled by an AVR (automatic voltage regulator) that allows user to control (manual and automatic) the current excitation of the synchronous generator. This device is an advanced speed and voltage controller and allows to study the operation of a real speed and voltage controller, synchronization and stand-alone operations. The user can monitor speed and voltage PIDs in order to study the stability of the synchronous generator-motor group. In power generation systems it is very important to maintain speed and voltage constants to avoid possible damages due to frequency or voltage oscillations. With this application students will learn how actual speed/voltage controller works. Additionally, Edibon recommends a second power generation substation to study parallel operations with two generators, recovery system after black-outs, etc.
SPECIFICATION
AEL-BSGC. Application:
- N-ALI01. Industrial Main Power Supply Module.
Supply voltage: 400 VAC, 3PH + N.
ON / OFF removable key.
Output voltage connections: Three-phase + Neutral: 400 VAC. Single-phase: 230 VAC.
Three-phase supply hose with IP44 3PN + E 32 A 400 V connecting plug.
Differential magnetothermal 4 poles, 25 A, 30 mA AC 6 KA.
Emergency stop push-button.
- N-PPIM1. Instrumentation Module 1.
Three-phase wattmeter: Measured range: 0 – 1.5 KW.
Three-phase varmeter: Measured range: 0 – 1.5 KVar.
Voltmeter: Measured range: 0 – 500 V.
Frequency meter: Measured range: 45 – 55 Hz.
DC meter: Measured range: 0 – 10 A.
- N-PSUB1. Power Generation Substation Module 1.
Supply voltage: 400 VAC, 3PH + N
ON / OFF switch.
Power and signals connection:
Three switches to choose between the different modes
Three control switches
Two potentiometers to regulate
- N-AE1. Transmission Lines Simulation Module.
Return line of 10 Ohm. The resistive part: two resistance values of 15 Ohm and 33
inductive part: Possibilities: 33 mH, 78 mH, 140 mH, 193 mH, 236 mH.
The capacitance between conductors: 0.5 μF and 1 μF for each conductor.
The capacitance between conductor and ground: 1 μF and 2 μF,
- N-EALD. Network Analyzer Module with Oscilloscope and Data Acquisition
- N-MPS. Motor Protection (1.6 A – 2.5 A).
ON / OFF switch.
Limit thermal current: From 1.6 A to 2.5 A.
Power input connections: L1, L2, L3.
Power output connections: L1, L2, L3.
- N-REFT/3C. 3 x 300 W Three-Phase Configurable Resistors Module.
Configurable star and delta connections.
Three banks with three three-phase resistors of 1600 Ω.
Nominal voltage: 40 VAC. Nominal power: 3 x (3 x 100) W.
- N-INDT/3C. 3 x 300 VAr Three-Phase Configurable Inductances Module.
Configurable star and delta connection.
Three banks with three three-phase inductances of 5 H.
Nominal voltage: 400 VAC. Nominal power: 3 x (3 x 100) Var.
- N-CAR19T/3C. 3 x 300 VAr Three-Phase Configurable Capacitors Module.
Configurable star and delta connection.
Three banks with three three-phase capacitors of 2 μF.
Nominal voltage: 400 VAC. Nominal power: 3 x (3 x 100) Var.
- EMT6/1K. Independent Excitation 3PH Synchronous Motor-Generator, 1 kW.
Nominal power: 1000 VA.
Power factor: 0.8.
Nominal output voltage: 3 x 400 VAC. Frequency: 50 / 60 Hz. Speed: 3000 rpm.
Nominal output current: 0.8 A. Nominal excitation current: 5 A.
- EMT7/1K. 3PH Squirrel-Cage Motor, 1 kW.
Nominal power: 1100 W.
Nominal voltage: 3 x 230 / 400 VAC Δ/Y.
Frequency: 50 / 60 Hz.
Number of poles: 2.
Speed: 2730 rpm.
Nominal current: 2.52 / 1.45 A.
