An approximate solution to lower tap changing or capacitors regulator times in reactive power control in distribution systems

Active and reactive dispatch with minimum control movements

“…As a matter of fact, the switching costs of the control equipments have increased considerably resulting increase in the value of power system operation cost as mentioned in Table 1. Maximum number of adjustment possible in a day must be obeyed not only to ensure longer life of such equipments but also to ensure their reliable operation [22]. The switching costs of both tap changers and switchable capacitors have decreased considerably after the restriction is applied as is evident from Table 1.…”

“…Adjustments of these apparatus are required for maintaining the steady and economic operating condition of the power system [9][10][11]. Recent works considering limited number of control action on OPF solution and on reactive power control has been discussed in [21] and [22] respectively. Optimal reactive power dispatch is highly nonlinear compared to optimal active power dispatch.…”

Effect of Capacitors on Frequency of OLTC Tap Changes in the Presence of Wind Generation

“…Wang et al, have discussed an approximate solution to reduce the number of tap changes in a conventional distribution system [11]. Salih et al, have discussed the effect of wind on tap changings by considering a specific wind profile [7].…”