Title :
A more efficient formulation for computation of the maximum loading points in electric power systems
Author :
Chiang, Hsiao-Dong ; Jean-Jumeau, René
Author_Institution :
Sch. of Electr. Eng., Cornell Univ., Ithaca, NY, USA
fDate :
5/1/1995 12:00:00 AM
Abstract :
This paper presents a more efficient formulation for computation of the maximum loading points of power systems. A distinguishing feature of the new formulation is that it is of dimension (n+1), instead of the existing formulation of dimension (2n+1), for n-dimensional load flow equations. This feature makes computation of the maximum loading points very inexpensive in comparison with those required in the existing formulation. A theoretical basis for the new formulation is provided. The new problem formulation is derived by using a simple reparameterization scheme and exploiting the special properties of the power flow model. Moreover, the proposed test function is shown to be monotonic in the vicinity of a maximum loading point. Therefore, it allows one to monitor the approach to maximum loading points during the solution search process. Simulation results on a 234-bus power system are presented
Keywords :
digital simulation; load flow; power system analysis computing; computer simulation; dimension (n+1); maximum loading points; n-dimensional load flow equations; power flow model; power systems; reparameterization scheme; Equations; Load flow; Monitoring; Newton method; Power engineering computing; Power system modeling; Power system planning; Power system simulation; Testing; Voltage;
Journal_Title :
Power Systems, IEEE Transactions on