Categories of Stability Phenomena in Power Systems Jose Rueda - PowerPoint PPT Presentation

Categories of Stability Phenomena in Power Systems Jose Rueda Torres

Learning Objectives • Define and classify the notion of power system stability

The Definition of Power System Stability

The Definition of Power System Stability

The Definition of Power System Stability

The Definition of Power System Stability

The Definition of Power System Stability

The Definition of Power System Stability

The Classification of Stability - Type

The Classification of Stability - Type Consideration for Power system stability classification

The Classification of Stability - Type Consideration for Power system stability classification Physical nature/main Frequency stability Voltage stability Rotor angle stability system parameter

The Classification of Stability - Type Consideration for Power system stability classification Physical nature/main Frequency stability Voltage stability Rotor angle stability system parameter Large disturbance Size of the Small disturbance rotor rotor angle stability angle stability (small disturbance (transient stability) signal stability)

The Classification of Stability - Type Consideration for Power system stability classification Physical nature/main Frequency stability Voltage stability Rotor angle stability system parameter Large disturbance Small disturbance Large disturbance Size of the Small disturbance rotor rotor angle stability voltage stability voltage stability angle stability (small disturbance (transient stability) signal stability)

The Classification of Stability - Type Consideration for Power system stability classification Physical nature/main Frequency stability Voltage stability Rotor angle stability system parameter Large disturbance Small disturbance Large disturbance Size of the Small disturbance rotor rotor angle stability voltage stability voltage stability angle stability (small disturbance (transient stability) signal stability) Time span Short-term Short-term Short-term Long-term Long-term

The Classification of Stability - Time 1 cycle 1 second 1 min 1 hour 1 day Transient Small-signal Rotor angle stability Short-term Long-term Voltage stability Short-term Long-term Frequency stability Long-term Short-term Network congestion 10 -4 10 -3 10 -2 10 -1 10 -0 10 1 10 2 10 3 10 4 10 5 Time scale [s]

The Classification of Stability - Time 1 cycle 1 second 1 min 1 hour 1 day Transient Disturbance nature: Small-signal size and duration Rotor angle stability Short-term Long-term Voltage stability Short-term Long-term Frequency stability Long-term Short-term Network congestion 10 -4 10 -3 10 -2 10 -1 10 -0 10 1 10 2 10 3 10 4 10 5 Time scale [s]

The Classification of Stability - Time 1 cycle 1 second 1 min 1 hour 1 day Transient Disturbance nature: Small-signal size and duration Rotor angle stability Network strength Short-term Long-term Voltage stability Short-term Long-term Frequency stability Long-term Short-term Network congestion 10 -4 10 -3 10 -2 10 -1 10 -0 10 1 10 2 10 3 10 4 10 5 Time scale [s]

The Classification of Stability - Time 1 cycle 1 second 1 min 1 hour 1 day Transient Disturbance nature: Small-signal size and duration Rotor angle stability Network strength Short-term Long-term Voltage stability Pre-disturbance Short-term Long-term network conditions Frequency stability Long-term Short-term Network congestion 10 -4 10 -3 10 -2 10 -1 10 -0 10 1 10 2 10 3 10 4 10 5 Time scale [s]

The Classification of Stability - Time 1 cycle 1 second 1 min 1 hour 1 day Transient Disturbance nature: Small-signal size and duration Rotor angle stability Network strength Short-term Long-term Voltage stability Pre-disturbance Short-term Long-term network conditions Frequency stability Controller settings Long-term Short-term Network congestion 10 -4 10 -3 10 -2 10 -1 10 -0 10 1 10 2 10 3 10 4 10 5 Time scale [s]

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