AEL-CPSS-02S Micro-Grids Power System with Power Generation and Loads, with SCADA

MICRO-GRIDS POWER SYSTEM WITH POWER GENERATION AND LOADS, WITH SCADA - AEL-CPSS-02S

INNOVATIVE SYSTEMS

The Smart Micro-Grids Power System Application, with Automatic Control Generation and Loads, with SCADA, "AEL-CPSS-02S", has been designed by Edibon for the training at both the theoretical and practical levels in the field of Smart Micro-Grids Energy Systems.

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General Description

The Smart Micro-Grids Power System Application, with Automatic Control Generation and Loads, with SCADA, "AEL-CPSS-02S", has been designed by Edibon for the training at both the theoretical and practical levels in the field of Smart Micro-Grids Energy Systems.

The AEL-CPSS-02S application provides several levels of training to give the user full knowledge and experiences about the most important principles of micro-grid in the context of control, distribution and energy consumption.

For this purpose, this application includes a specific manual, which explains at theoretical level the subjects relating to Micro-Grids Power Systems. The thematic of the manual covers from the coordination of different energy sources working in the same distribution grid up to issues as the protection relays coordination, electric generators control and system response against a black-out to maintain the electricity supply. On the other hand, it is provided a series of modules and options to put into practice all theoretical concepts previously studied in this manual.

One of the advantages of this application is its modularity and flexibility. This allows carry out different Micro-Grids configurations. For example, the user can configure the power system as "Generation + Distribution + Consumption" working with the generator in stand-alone mode or the can be configured with the generator connected to the grid for parallel operation purposes. Electrical generator can be synchronized with the laboratory network to establish an energy delivery network in order to develop a Micro-Grid with one or more energy generation sources.

In functional terms the whole system can be controlled either locally through the operation of switches, breakers and signals, and remotely through the Data Acquisition and Control Software offered optionally.

The AEL-CPSS-02S optionally offers both a Data Control and Data Acquisition Software (AEL-CPSS-02S/CCSOF) and a PLC control module that allow the user carries out the remote control of the Micro-Grid. The SCADA control system allows carrying out the most important operations of real power systems such as speed and voltage control of the turbine and synchronous generator, coupling maneuvers of the generator with the mains (synchronization), stand-alone operations with the generator (micro-grid concept), loads commutation, current and voltage measurements in different points of the system, etc.

In addition the AEL-IOP-01S can be optionally acquired. This application consists of a second motor-generator group with its respective control and measurement modules for parallel operations with several power generation sources. This allows the user load sharing studies with several generators connected in parallel to supply Micro-Grid.

The following is a description of the most important modules included in this application:

Generator Protection and Control Relay Unit

It is an industrial control and protection device of power generator groups with more than 150 configurable variables. The Relay Unit provides different levels of access to be configured. For example, protection thresholds such as overcurrent (50/51), over/under-voltage, over/under-frequency (81), inverse power, over/underspeed of the turbine (12), number of poles of the machine and nominal power can be set. In addition, for more advanced settings, it is possible to set the PID control system parameters under different operation conditions of the turbine-generator group.

During motor-generator group start-up, it is possible to monitor the PID signals, to analyze the generator disturbances and to remake real time setting adjustments through the provided relay configuration software.

Due to the versatility of the Generator Protection and Control Relay Unit, Edibon provides configured this device to work properly from scratch with the generator-motor group. In addition, it is provided a relay setting file to restore the relay to the initial configuration. On this way, the user can change any relay parameter and recovery the initial setting.

This device offers the advantage of managing the generator-motor group to supply power autonomously to the micro-grid and, at the same time, it allows synchronizing the generator with the grid to work as a support system.

Automatic Voltage Regulator

This device is designed for manual and automatic control of the current excitation of the synchronous generator. The regulator has a switch that allows the user to select the control mode. If manual control mode is selected, the current excitation of the synchronous generator can be controlled manually with a potentiometer and the effects of the generator output voltage can be seen. Automatic control mode allows the Generator Protection and Control Relay Unit to take the control of the current excitation.

In this way, the user will be able to study the operation of the entire system working autonomously, just as a real central works, or taking control of the installation to study the effects of changing the excitation of the generator in the electrical system.

Three-Phase bank of Commutable Resistors Module

This module is designed in order to carry out local consumption of the generated energy by the synchronous generator. This module has three switches to introduce three active power consumption stages.

DC Generator Analyzer

This module allows measuring electrical parameters of the current excitation of the synchronous generator (V, I, P).

Turbine Speed Controller

This device allows controlling manually and automatically the turbine speed. Manual control allows the user to manage the turbine speed through a potentiometer included in this module. On the other hand, automatic control function is carried out by the Generator Protection and Control Relay unit with an analog signal of 0-10V.

On this way, the user can either study the whole system operations working autonomously, as a real power station works, or taking the manual control of the system to study the effects of the turbine speed changes in the electrical system.

The AEL-CPSS-02S includes the following modules:

    • N-ALI01. Industrial Main Power Supply.
    • N-VVCA5K. 5 KW Motor Speed Controller.
    • N-EALDC/G. DC Generator Analyzer.
    • N-AVR/P. Automatic Voltage Regulator.
    • N-ERP-PGC01. Generator Protection Relay Module.
    • N-EALD. Network Analyzer Unit with Data Acquisition.
    • N-CAR35T3D. Three-Phase Digital Bank of Commutable Resistors Module.
    • GMG4.5K3PH. 4.5KW Generator-Motor Group.

Required module if the optional SCADA is acquired:

    • N-PLC04. PLC04 Control Module.

Required PC if optional SCADA is acquired:

    • AEL-PC. Touch Screen and Computer (to work with the optional SCADA Control System).

Optional application:

The AEL-IOP-01S Isolated Parallel Operation application, with SCADA can be acquired as a supplement to AEL-CPSS-02S to study isolated parallel operations with two generators in a Micro-Grid.

The AEL-IOP-01S includes the following modules:

    • N-VVCA5K. 5 KW Motor Speed Controller.
    • N-EALDC/G. DC Generator Analyzer.
    • N-AVR/P. Automatic Voltage Regulator.
    • N-ERP-PGC01. Generator Protection Relay Module.
    • N-EALD. Network Analyzer Unit with Data Acquisition.
    • GMG4.5K3PH. 4.5KW Generator-Motor Group.

Required module if the optional SCADA is acquired:

    • N-PLC05. PLC05 Control Module.

The application AEL-CPSS-02S is mounted on rack.

This application required the following racks:

    • N-RACK-A.
    • N-RACK-M.
    • N-RACK-B (4 units).

Optionally the AEL-WBR. Electrical Workbench (Rack) can be supplied to place the rack/s.

This unit is supplied with the EDIBON Computer Control System (SCADA), and includes: The unit itself + Computer Control, Data Acquisition and Data Management Software Packages, for controlling the process and all parameters involved in the process.

Exercises and guided practices

GUIDED PRACTICAL EXERCISES INCLUDED IN THE MANUAL

  1. Study of generation power systems in Micro-Grids.
  2. Analysis of the measurements of the power flows of the synchronous generator in the Micro-Grids.
  3. Analysis of the active and reactive power of the generator in the Micro-Grids.
  4. Automatic synchronization maneuvers of synchronous generator with the mains.
  5. Study of the synchronous generator in island operation mode in Micro-Grids.
  6. Study of excitation/voltage regulation of synchronous generator in island mode in Micro-Grids.
  7. Study of turbine regulation (frequency control) in the Micro- Grids.
  8. Study of excitation/voltage regulation of synchronous in Micro- Grids.
  9. Study of the power factor regulation of the synchronous generator in Micro-Grids.

MORE PRACTICAL EXERCISES TO BE DONE WITH THE UNIT

Some practical exercises possibilities with the optional SCADA:

  1. Remotely control of generation power systems in Micro-Grids.
  2. Analysis with the SCADA software of synchronous generator power flows in Micro-Grids.
  3. Analysis with SCADA software of active and reactive power of synchronous generator in Micro-Grids.
  4. Remotely control of synchronous generator in Micro-Grids.

Additional practical exercises possibilities with the Optional Application "AEL-IPO-01S":

  1. Control of multiple generator in a standalone network.
  2. Control of multiple generator in parallel generation mode.
  3. Manual/Automatic frequency control of synchronous generators.
  4. Manual/Automatic voltage control of synchronous generators.
  5. Power factor control generator in island mode.

Other possibilities to be done with this Unit:

  1. Many students view results simultaneously. To view all results in real time in the classroom by means of a projector or an electronic whiteboard.
  2. The Computer Control System with SCADA allows a real industrial simulation.
  3. This unit is totally safe as uses mechanical, electrical and electronic, and software safety devices.
  4. This unit can be used for doing applied research.
  5. This unit can be used for giving training courses to Industries even to other Technical Education Institutions.
  6. Several other exercises can be done and designed by the user.
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