Time Series Analysis (Quasi-Dynamic Simulation)

Time series is a new foundational element in DesignBase that is critical to the design and optimization of a microgrid (distributed generation, energy storage, renewable generation and dynamic loads) in particular but applies to any dynamic analysis.  Today dynamic behavior from external events such as weather or controlled process directly benefit from time series analysis.  The ability to use time series during power model analysis presents realistic results and helps to define constraints.  It also links the operation of the system directly to the modeling, planning and simulation.

  • Time Series Study is based on running Load Flow Analysis in different times and under different system operation scenarios
  • Loads are completely time dependent (from a second to year)
  • Renewable sources such as Solar and Wind generation are a function of time (Generation depends on climate and weather changes including solar irradiance and wind speed)
  • Network variations and outages (contingencies) are normally part of a study
  • Generation control settings also can be evaluated according to time
  • Results can be used for planning and sizing diesel generator and/or energy storage
  • Enhanced power flow control and Volt/Var support
  • Energy (kWh) generation and consumption during different time scales are provided
  • Exact time data (historical) from meters can be applied (imported)

By definition, transients are not persistent or long duration phenomena and the impact they can have on a power network can range from loss of efficiency to catastrophic so being able to understand transients are critical to design and operation of a power network. 


Advanced Transient Program

  • Activating Scope Function in the General Model and AVR Building Program
  • New Signal Sources Block for User Defined Models: Step, Ramp, Sine, Saw tooth
  • New second order polynomials (oscillator) block
  • New rate limiter block
  • New two dead-band models
  • New signal to signal exponentiation block
  • Enable/Disable feature for blocks
  • Enhance look-up table block
  • New user defined model for  Battery Energy Storage and PV models
  • New sample files for Governor/AVR/Load Controllers as General Model
  • Blocks explanation and error checking enhancements
  • Creating user defined Power System Stabilizer (PSS) template


Arcflash is already one of the most important areas of power study work and research because of the devastating impact an arcflash event can have on equipment and personnel.  In addition, real time arcflash is the single most requested option for the real time system and that is 100% based on the arcflash capability of DesignBase.  This release includes the incorporation of the 2015 standards.


AC & DC Arcflash Program

  • New Arcflash Standard based on NFPA 70E 2015 and CSA Z462
  • Using IEC 363 Short Circuit Results in the Arcflash calculation
  • Applying maximum 50 “Fault Contribution Level” to look for upstream PDC curves
  • Updated Labels and Results based on NFPA 70E 2015 and CSA Z462
  • Applying Standard Color for Warning and Danger labels based on ANSI Z535
  • Created a tabular data entry with saved data for network Arcflash program
  • Added user defined breaker opening time for all breakers (mechanical delay)
  • Added user defined maximum tripping time (reaction time) individually for every bus
  • Added new Arcflash Labels
  • Added Relay Interlock feature


Protective device coordination (PDC) is another of the fundamental power study processes.  PDC is critical to delivering power for the mission, protecting equipment and protecting people.  PDC can be very complex depending on the size of the power network and the complexity of devices.  As with everything in today’s world of power engineering, the presence of generation and load rather than just load increase the complexity and difficulty.  The release of Power Analytics DesignBase 6.0 represents a major integration between protection and safety by giving the power engineer the ability to see the impact of device settings on potential arc flash during the coordination process.


Protective Device Coordination

  • Added Equal Energy Lines for Arcflash PPEs for IEEE-1584 (Unique DB6.0 feature)
  • Added PPE Category Method NFPA-70E 2015 boundaries (Unique DB6.0 feature)
  • Added two axis plot for Voltage in TCC curve
  • Added multi-segments relay curves (5 relays at a time)
  • Added IEC-61363 SC results into PDC study
  • Created remote CT data usage for relays
  • Speed up the calculations for running SC through PDC
  • Added Multi-selection feature for TCCs and Devices
  • Added Interlock feature of switches/breakers for PDC studies
  • Updates on PDC studies sorting
  • Updates on graphical editor of TCC and PDC studies
  • Updates on zooming and restoring
  • Updates on TCC curves for motors/loads
  • Updates on Reports and Annotations


Short Circuit AC 3P, DC, 1Ph

  • Added Line to Ground Fault PDE analysis based on IEEE C37.010 and IEC61909
  • Annotation for Bus PDE and Duties Results based on IEEE C37.010
  • Added SC tolerance option for single equipment for 3P SC
  • Link SC study case feature into scenarios
  • Display 1 level away branch contribution for multiple bus selection
  • Updated calculation Options for IEC 60909
  • Added New SC model for static converter
  • Added New Function to Calculate Branch Currents which IEC 61363 Standard Does not Provide
  • Enhanced IEC 363 annotation



New Features in Editor and Build Programs

  • New data entry tabs for Time-Series study
  • Added Interlock data entry tab for Breakers/Relays/Switches
  • Added relay opening time field
  • Added PDC device settings in Text Editor
  • New Ampacity temperature fields
  • Import network model data from Excel (spreadsheet)
  • Updated Recloser/Motor Circuit protector/Relay Build Programs
  • Updated auto single-line generation
  • Added IEC Cable into metric library
  • Enhanced data entry for PDC settings

Advanced Power Flow

  • Applied New Strategy for Swing Bus Selection


Advanced Motor Starting

  • Applied generators PV/Swing modes for motor starting
  • Applied governor response solution for motor starting
  • Enhancements on Report and Editor data entry


Ground Grid Design

  • New feature for modeling circle ground design


Power System Optimization

  • Provided more currencies as £, € for energy cost function


Advanced Harmonic Analysis

  • Added Harmonic Source Enable/Disable based on Scenarios
  • Added Scenario Dependent Harmonic Sources Rating/PF
HTML Snippets Powered By : XYZScripts.com