Rm. Jan et Nm. Chen, APPLICATION OF THE FAST NEWTON-RAPHSON ECONOMIC-DISPATCH AND REACTIVEPOWER VOLTAGE DISPATCH BY SENSITIVITY FACTORS TO OPTIMAL POWER-FLOW, IEEE transactions on energy conversion, 10(2), 1995, pp. 293-301
This paper applies the sensitivity factor method to the reactive power
/voltage dispatch problem and combines it with the fast Newton-Raphson
economic dispatch to solve the optimal power flow problem. The advant
age of this method is that it is fast and reliable. Firstly, the real
power generalized generation shift distribution (GGSD) factors are use
d in economic dispatch to find the real power generation for every uni
t so that the fuel cost is minimum. During the process of solving the
economic dispatch problem, the voltage magnitudes of load buses in a p
ower system may be changed and may exceed the ranges of secure values.
Therefore, reactive power sensitivity factors of bus voltage magnitud
es are used to regulate the voltage magnitudes of load buses to the se
cure ranges. The process is repeated to find the optimal generation wi
th all voltages staying within the secure ranges. Results show that th
e algorithm converges very fast.