Transient Stability Software

Transient Stability Software Capabilities

• Simulate Generator Start-Up (optional feature)
• Set & adjust exciter, AVR, turbine or engine parameters
• Set speed governor parameters
• Set & adjust control relays
• Simulate loss of excitation
• Induction and synchronous motor acceleration
• MOV starting
• Motor load impact & ramp change
• Relay-controlled actions
• Automatic load shedding
• User-controlled simulation parameters
• Handle multiple subsystems and islanding systems
• Power system static var compensator (SVC) model
• High voltage direct current transmission (HVDC) model
• Calculate Critical Fault Clearing Time (CFCT)
• Calculate Critical Separation Time (CST)
• Fast load transferring
• Load Shedding
• Rotor Angle Responses

Simulate Disturbances & Operations

• 3-phase & line-to-ground fault actions
• Branch segment fault
• Protective device open and close
• Generator start-up
• Generator
  • input power adjustment
  • voltage set point adjustment
  • isoch / droop mode changes
  • field winding fault
• Power Grid voltage drop and rise
• Motor
  • acceleration/reacceleration
  • acceleration using conventional starters
  • acceleration using conventional soft-starters
  • acceleration using conventional VFD
  • load adjustment

Typical transient stability studies include identifying critical fault clearing time, checking generator rotor angle stability, assessing system stability margin, evaluating motor dynamic acceleration and re-acceleration impact, preparing and testing load shedding schedule, computing fast bus transfer timing, calibrating and evaluating relay setting and simulating generator start-up.

You can split a system or combine multiple subsystems, simulate automatic relay actions and associated circuit breaker operations, and start or auto-start motors. Combined with enhanced plotting and graphical results, engineers can truly use transient stability analysis program to master power system stability studies.