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User-Defined Dynamic Models

The ETAP Battery Sizing module provides you with a powerful tool to accomplish this task.


The ETAP Battery Sizing module provides you with a powerful tool to accomplish this task. In complying with IEEE Standard 485-1997, it determines the number of strings, number of cells, and cell size of a battery for a designated duty cycle. The number of cells is determined to satisfy the maximum system voltage during the battery charging period and the minimum system voltage during the battery discharging period. The number of strings and cell size is determined to provide sufficient power to the load cycle considering the minimum system voltage and the minimum operating temperature. It also considers different factors that affect battery performance, such as design margin, aging compensation, initial capacity, and temperature, etc.

Battery Sizing Software Key Features

  • IEEE Standards 308, 485, 946
  • Integrated AC, DC, & Control System Diagram
  • Voltage drop & loss consideration
  • Class 1E DC power & control system models
  • Duty cycle diversity factor
  • Load model type per operating characteristics
  • Battery duty cycle calculated from individual loads
  • Options for battery & load duty cycle 1 min span
  • Multiple user selected options for battery characteristic interpolation
  • Multiple diversity & correction factors
  • Battery sizing report in IEEE 485 format
  • Plot battery capacity, voltage, & current
  • Plot bus voltage & load & branch flow
  • Detailed battery library

Battery Sizing Software Standards

  • IEEE 308
  • IEEE 485
  • IEEE 946

Battery Sizing Software Capabilities

  • Load flow method (includes losses & voltage drops)
  • Duty cycle summation method
  • Automatic battery size verification by battery discharge simulation
  • Automatic addition of random load at the lowest battery terminal voltage
  • Multiple load duty cycles for simulating different practical scenarios
  • Load duty cycle adjustment based on load diversity & battery correction factors
  • Unlimited number of system configurations to easily simulate different emergency conditions

Battery Correction Factors

  • Temperature
  • Aging
  • Initial capacity
  • Design margin

Plot Options

  • Battery voltage, Amp, & AH
  • Battery duty cycle (random & non-random loads)
  • Battery characteristic curves
  • Branch current & power flow
  • Bus voltage & loading
  • Zoom to any detail level
  • Export data to Microsoft Excel
  • Line, bar, 3-D, & scatter plots
  • Change text & axes

Reporting

  • Battery & load duty cycle
  • Battery characteristics
  • IEEE 485 format
  • Tabulate simulation results
  • Export one-line diagrams with results to third party CAD systems
  • Use Crystal Reports for full color, customizable reports

The ETAP User-Defined Dynamic Models program can be used to build or customize complex machine control system. This module allows you to build control block diagrams needed to simulate the behavior of machines in Transient Stability and Generator Start-Up simulations. The User-Defined Dynamic Models provide independent self-testing via load rejection, load acceptance, and terminal bus faults for validation of models and their dynamic behavior. The main application of the UDM module is to model dynamic control elements which are not part of the standard ETAP dynamic model library. User-Defined Dynamic Models software is fully integrated into ETAP and allows for the creation of dynamic models without the need to buy additional MATLAB® Simulink® software. The User-Defined Dynamic Models software consists of Graphical Logic Editor (GLE) that allows you to build control transfer function block diagrams. The User-Defined Dynamic Models software also includes a detailed compiler with comprehensive initialization routines that allows you to utilize control block diagrams to simulate dynamic responses to power system disturbances via Transient Stability software.

Create Custom Block Diagrams

  • Automatic Voltage Regulators (AVR)
  • Power System Stabilizers (PSS)
  • Generator Exciters
  • Turbines / Engines
  • Speed Governors / Controllers
  • Static and Dynamic Shunt Models
  • Wind Turbine Generator
  • Photovoltaic Array

User-Defined Dynamic Models Software Key Features

  • Full graphical model builder
  • Graphical drag and drop interface for building custom control block diagrams.
  • Integrated with transient stability models
  • Wide variety of blocks for building models
  • Library of pre-defined UDM models to create complex models
  • Customize existing UDM models
  • Compile & test directly from the UDM builder
  • Real-Time compiling & linking of models
  • Control element toolbars including transfer blocks, input ports, output ports, etc.
  • Automatic UDM links to components
  • Import & Export MATLAB® Simulink® models
  • Create & edit models for Exciter, Governor, Power System Stabilizer & Lumped Load
  • Various model testing methods such as Load Acceptance, Load Rejection and Fault.

User-Defined Dynamic Models Software Capabilities

ETAP Balkan, Nispetiye Mahallesi, Gazi Güçnar Sokak, Uygur İş Merkezi, No:4A, Beşiktaş, İstanbul 34340 TURKEY