Way to prevent voltage collapse in power systems

摘要

A method for preventing voltage collapse in power system, comprising the steps of measuring a voltage and reactive power to the buses station, control the alarms by standard automation "current limit overload of the rotor" generator and the presence of the alarm data from all generators connected to buses station carried off controlled load power region with an accurate definition of discharge volume required to eliminate overloading of the rotor current, which is determined by Single to: where A = 1 + k ,, calculation coefficients computed from the measurement values ​​of the active P, reactive power Q and the voltage U on the tire in station in an emergency overload mode, S - total power generator ,, x- synchronous reactance impedance of the generator or the equivalent resistance of all station generators along the longitudinal axis in relative units, k - the ratio between the reactive and active components of the power generator (plant) (tgφ), E- allowable value emf current load condition on the rotor determined on the basis of normative parameters of the equipment.