CYBER BULLYING: A MODERN CYBER CRIME IN INDIA – PROBLEMS AND PROSPECTS

It can be seen that the alternate controller correctly locates the worst violation buses, identifies the most effective control devices with the lowest costs at each step, and finally brings voltage back to normal range.For this system, capacitors are switched in first; then LTC taps are changed or generator voltage set point are adjusted depending on their relative priority.The effects of the relative priority are shown clearly by the different control actions.The switching costs of LTC tap changing and generator voltage adjusting are set equal, thus the generators are chosen before LTCs as controls because the voltage penalties of generator actions are smaller than that of LTC.In contrast, the switching costs of generator voltage adjusting are set significantly higher than that of LTC tap changing, thus the LTCs are chosen to act before generators at each step.The WECC 2017-2018 Winter (case ID 213SNK) planning case has more than 6000 buses in the system, the system has dozens of 230KV, 115 KV and 69 KV capacitor banks, a couple of 500 KV reactor banks, a few 500/230-kV and 230/115-kV LTC autotransformers.For test purpose, only parts of these devices are selected as candidate devices for voltage control and a modified base case is setup to facilitate the tests.