| 摘要 |
PURPOSE:To improve a voltage stability by load transfer or the adjustment of a generator output by a method wherein a means which calculates a voltage stability index, a means which calculates a sensitivity factor and a means which obtains a load switching rate or a load switching rate and a generation adjustment rate by a linear programming method are provided. CONSTITUTION:A state variable initiallization means 21 receives measured values of the states of a power system 1, such as the measured values of active powers of loads and generators, reactive powers and generator voltages, which are inputted from transmitters 2 and 3 and calculates power flow and determines the state variable values in an initial state. Then a voltage stability index initiallization means 22 calculates a voltage stability index from the state variable values determined by the state variable initiallization means 21. A voltage sensitivity factor calculating means 23 obtains a Jacobian matrix by using the state variable values determined by the state variable initiallization means 21 or a stability index calculating means 27 to calculate a voltage sensitivity factor. |
