Efficient Day-Ahead Scheduling Voltage Control Scheme of ULTC and Var of Distributed Generation in Distribution System

Corrections to “Efficient Day-Ahead Scheduling Voltage Control Scheme of ULTC and Var of Distributed Generation in Distribution System”

“…In the above article [1], the simulation for CASE 2 contained technical mistakes. First, the scenario data for the simulation included errors caused by technical mistakes in the process of generating the scenarios according to the forecast error levels of the distributed generators (DGs) and loads.…”

“…1) In [1,Table 12,], the PI values for the comparison between the conventional control schemes and the proposed control scheme were miscalculated in the program calculation process. This was expressed as a value 10× larger than the normal calculated value.…”

“…This was expressed as a value 10× larger than the normal calculated value. Therefore, this was corrected using Equation (15) given in [1] and is shown in Table 12. 2) In CASES 2-2, 3, 4, and 5 presented in [1], technical mistakes were made in the process of generating the scenario data, meaning incorrect input data was applied.…”

“…Therefore, this was corrected using Equation (15) given in [1] and is shown in Table 12. 2) In CASES 2-2, 3, 4, and 5 presented in [1], technical mistakes were made in the process of generating the scenario data, meaning incorrect input data was applied. Therefore, the simulations for CASES 2-2, 3, 4, and 5 were re-performed, and the results are shown in Table 12.…”

“…In addition, the scenario of CASE 2 for the simulation was replaced with 100 random cases for the average error level (as shown in Table 12) to correct technical mistakes and evaluate each control scheme. These 100 random cases according to average error level were scenarios that contained more uncertainty problems due to the forecast errors of DGs and loads compared to the single case presented in [1], which was considered suitable for evaluating each control scheme. The simulation results for each control method are shown in Table 12 and the DG and load forecast profiles used in the simulation were generated based on the scenario presented in [1].…”