ProTRAX Modeling for Korean Power Grid

A team of researchers from Yeungnam University and KEPCO Research Institute have developed a simulation of the Korean power grid using ProTRAX software.  As published in the Journal of Sustainable Development of Energy, Water and Environment Systems, the team developed a simulation “to investigate the performance and output characteristics of a megawatt-scale high-power BESS [Battery Energy Storage System] connected to the power grid for frequency regulation.”

TRAX worked with Professor Ki-Yeol Shin to provide dynamic modeling, engineering support, and software interface tools to allow design, testing, and tuning of the Siemens controls for a 4 MW Energy Storage System (ESS).  The dynamic models included:

  • Multiple generating units for a maximum 500 MW capability
  • Multiple variable loads with a total power consumption of 500 MW
  • Four 1-MW Power Conditioning System sets. This equipment provides up to 4 MW of power and contains:
  • Two 1MWH lithium battery clusters
  • One power conditioning module supporting bi-directional flow
  • One 440V/22.9KV transformer
  • Other electrical components (busses, breakers, etc.) forming a complete electrical network

After the initial work was complete, the modeling scope was expanded to encompass a total grid size of 7GW, including 345KV distribution, 27 major generating stations, and 28MW of energy storage.

The power load model has similar characteristics to the real electric load of the power grid and could be very useful for validating an ESS controller for frequency regulation.

TRAX is looking forward to Professor Shin’s next project!

Citation:
Jin, T.-H., Chung, M., Shin, K.-Y., Park, H., Lim, G.-P., Real-Time Dynamic Simulation of Korean Power Grid for Frequency Regulation Control by MW Battery Energy Storage System, J. sustain. dev. energy water environ. syst., 4(4), pp 392-407, 2016, DOI: http://dx.doi.org/10.13044/j.sdewes.2016.04.0030

 

URL:
http://dx.doi.org/10.13044/j.sdewes.2016.04.0030

ProTRAX Modeling for Korean Power Grid

January 5, 2018

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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