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Understanding the Fundamentals
Prepared By: Mrs. Puja Gurav
• Power system stability is the ability of an electric power system
to maintain equilibrium during normal and disturbed conditions.
• It ensures continuous operation without loss of synchronism.
• Stability is vital for reliable and secure power delivery.
• Maintains synchronization of generators.
• Prevents blackouts and system failures.
• Ensures smooth operation and voltage regulation.
• Increases reliability and efficiency of the grid.
• Rotor Angle Stability – Maintaining synchronism among
generators.
• Voltage Stability – Ability to maintain acceptable voltage
levels.
• Frequency Stability – Balance between generation and load to
maintain frequency.
• Deals with maintaining generator rotor angles in synchronism.
• Important during faults and disturbances.
• Studied using the swing equation and equal area criterion.
• Ability of the system to maintain steady voltages at all buses.
• Voltage collapse occurs if demand exceeds reactive power
support.
• Controlled by reactive power compensation devices.
• Balance between active power generation and load demand.
• Frequency deviation occurs after large disturbances.
• Requires load shedding, governor action, and reserve power.
Introduction to Power System StabilityPS
• System configuration and interconnections.
• Generator characteristics.
• Load behavior.
• Control and protection systems.
• Disturbances such as faults or sudden load changes.
• Fast-acting excitation systems.
• Power system stabilizers.
• FACTS devices for reactive power compensation.
• Automatic generation control.
• Proper protection and control coordination.
• Power system stability is crucial for reliable and secure
electricity supply.
• Different types of stability address rotor angle, voltage, and
frequency aspects.
• Proper design, control, and compensation methods enhance
system stability.
Thank You….

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Introduction to Power System StabilityPS

  • 2. • Power system stability is the ability of an electric power system to maintain equilibrium during normal and disturbed conditions. • It ensures continuous operation without loss of synchronism. • Stability is vital for reliable and secure power delivery.
  • 3. • Maintains synchronization of generators. • Prevents blackouts and system failures. • Ensures smooth operation and voltage regulation. • Increases reliability and efficiency of the grid.
  • 4. • Rotor Angle Stability – Maintaining synchronism among generators. • Voltage Stability – Ability to maintain acceptable voltage levels. • Frequency Stability – Balance between generation and load to maintain frequency.
  • 5. • Deals with maintaining generator rotor angles in synchronism. • Important during faults and disturbances. • Studied using the swing equation and equal area criterion.
  • 6. • Ability of the system to maintain steady voltages at all buses. • Voltage collapse occurs if demand exceeds reactive power support. • Controlled by reactive power compensation devices.
  • 7. • Balance between active power generation and load demand. • Frequency deviation occurs after large disturbances. • Requires load shedding, governor action, and reserve power.
  • 9. • System configuration and interconnections. • Generator characteristics. • Load behavior. • Control and protection systems. • Disturbances such as faults or sudden load changes.
  • 10. • Fast-acting excitation systems. • Power system stabilizers. • FACTS devices for reactive power compensation. • Automatic generation control. • Proper protection and control coordination.
  • 11. • Power system stability is crucial for reliable and secure electricity supply. • Different types of stability address rotor angle, voltage, and frequency aspects. • Proper design, control, and compensation methods enhance system stability.