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ProTRAX Improvement Renewable Energy Modules



PROTRAX IMPROVEMENT ‒ RENEWABLE ENERGY MODULE UPDATE


The newest ProTRAX modules are designed to match continuing changes in the energy market and are heavily focused on renewable energy sources. These modules can be used to simulate individual renewable generation sources or the integration of multiple renewable sources interconnected on the grid.


Here is a preliminary overview of the new and enhanced module technical capabilities…


AC TRANSMISSION LINE

  • Parameters: line size/length; conductor type; resistance (Ohms/mile)
  • Output: in/out current, voltage, and phase; surface temperature; ampacity ‒ the maximum current in amperes a conductor can carry continuously under the conditions of use without exceeding its temperature rating goes here

BATTERY

  • Parameters: maximum capacity (Ah); open-circuit voltage per cell; internal resistance per cell; manufacturer’s voltage vs. charge curve; maximum discharge current; maximum charge current; number of cells in series (stack); number of parallel stacks; temperature ‒ rated/base temperature in degrees Celsius; number of cells; rated voltage
  • Output: DC voltage and current and state of charge


CAPACITOR BANK

  • Parameters: rated voltage; reactive power/bank; number of banks represented
  • Output: AC or DC voltage and current


HVDC TRANSMISSION LINE

  • Parameters: line size/length; conductor type; resistance (Ohms/mile)
  • Output: in/out current and voltage; surface temperature; ampacity ‒ the maximum current in amperes a conductor can carry continuously under the conditions of use without exceeding its temperature rating

HYDRAULIC TURBINE

  • Parameters: table of volumetric flows, efficiency, and pressure
  • Outputs: power

INVERTER/RECTIFIER PARAMETERS

  • Enter the maximum current of the inverter in percentage of the rated full load current. Imax defaults to 150%
  • AC Rating
  • kVA: rated AC kVA of the inverter. When the rated AC kVA is modified, the rated AC full load current, rated DC power, rated DC full load current, and the operating load and losses for all loading categories of the inverter are recalculated
  • kV: rated AC voltage of the inverter in volts. The rated AC full load current is calculated
  • FLA: rated AC full load current of the inverter in amperes. When the rated AC full load current is modified, the rated DC power, rated AC kVA, rated DC full load current, and the operating load and losses for all loading categories of the inverter are recalculated
  • %PF: rated power factor of the inverter in percent. When the power factor is modified, the rated DC power, rated DC full load current, and the operating load and losses for all loading categories of the inverter are recalculated. ETAP limits the entry of power factor in such a way that it cannot exceed Max. PF or be below Min. PF. It defaults to 85%
  • Min. PF: minimum power factor in percent. It defaults to 80%. This value is used to calculate Qmax and Qmin when the inverter AC operation mode is Voltage Control
  • Max. PF: maximum power factor in percent. It defaults to 100%. This value is used to calculate Qmax and Qmin when the inverter AC operation mode is Voltage Control


LAKE

  • Parameters: dam height; reservoir area
  • Outputs: outlet pressure

PHOTOVOLTAIC PANEL

  • Parameters: location of PV panel (degrees latitude); tilt angle and orientation of panel; size of panel (area); current-voltage curve from manufacturer; rated voltage/current; estimated degradation rate
  • Inputs: decimal day of year (system variable tied to time variable); percent cloud cover 
  • Outputs: DC voltage and current


WIND TURBINE & BOUNDARY CONDITION

  • Parameters: rotor diameter; hub height; rated output (MW); rated rotor RPM; type of operation (fixed speed or variable speed)
  • Inputs: wind speed; wind direction; ambient air conditions; blade angle
  • Outputs: AC voltage and current; rotor RPM



A group of wind turbinesDescription automatically generated with low confidence

ProTRAX Improvement Renewable Energy Modules

March 7, 2022

TRAX has delivered a carbon capture simulator for a 150 MW coal-fired unit that models the capture of the full flue gas stream.  The system provides both CO2 and SO2 capture, delivering the captured CO2 to a pipeline for industrial use and underground storage.

TRAX Carbon Capture Model Included:

—CO2 and SO2 capture
—Sulfuric acid plant
—CO2 and SO2 amines filtration and purification
—CO2 compression
—CO2 pipeline and cavern

As shown below, TRAX built a modular simulation replicating the plant layout using our software, ProTRAX.  ProTRAX contains a full suite of modules specific to carbon capture functions and can model a wide variety of processes.  TRAX also virtually replicated the user interface that appears in the plant.  

Model Scope

ProTRAX is a modular software that can easily integrate multiple models for larger projects.

Schematics

TRAX organizes the simulator model to match the layout of the site or process being modeled.

Schematics

Depending on the Absorber module selected, the module can remove water vapor (H2O), carbon dioxide (CO2), and/or sulfur dioxide (SO2) from an air or gas stream.

Documentation

Each ProTRAX module is backed by comprehensive documentation, including a general description, module inputs and outputs, and mathematical formulae.

HMI

The training value of a simulator occurs in the interactive screens that replicate the site equipment.

Upon initial delivery, the TRAX simulator was used to debug control logic and processes prior to site installation and to provide operations training prior to plant startup.  There was a clear need to begin training operators as early as possible since they had multiple unfamiliar systems to learn.

Thanks to the ProTRAX simulator, our customer gained considerable insight into control functionality and system interactions, resulting in modification to some control logic and correction of simple errors.  TRAX was able to assist with controls tuning, and helped in development of initial plant Operating Procedures.

The latest upgrade brings the model into alignment with the as-built plant condition by updating and tuning the simulator models to match the current plant dynamics. In addition, TRAX has updated the simulator controls and HMI graphics to the as-built state.  Keeping the simulator aligned with the current plant condition is critical to maintaining a positive training value, and is of paramount importance to the customer.

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