spændingsstyrte
Spændingsstyrte, also known as voltage collapse or voltage instability, is a critical phenomenon in electrical power systems that occurs when the voltage at a bus or node in the system drops to a critically low level, leading to a loss of voltage stability. This condition can result in a cascading failure of the entire system, causing widespread blackouts and significant economic and social disruption.
Voltage collapse is typically triggered by a combination of factors, including heavy loading conditions, inadequate reactive
Several mechanisms can contribute to voltage collapse, including the loss of excitation in synchronous machines, the
To prevent voltage collapse, power system operators employ various strategies, such as increasing reactive power support,