VOLTAGE LOAD SHEDDING CONSIDERING VOLTAGE SENSITIVITY AND REACTIVE POWER
Keywords:
voltage stability, voltage load shedding, effective bus, reactive power, voltage sensitivityAbstract
Load shedding is the last reaction to control and stabilize the power system in the event of a disturbance. Determining the location and amount of load shedding is one of the issues that has always plagued the users of the power system. In this paper, a new method is proposed to determine the appropriate bus for voltage load shedding. In the proposed method, unlike the previous methods, two indices of voltage sensitivity to active power and reactive power are used many times to determine the appropriate bus for voltage load shedding. Considering the reactive power many times in the process of determining the appropriate bus for voltage loading causes more reactive power to be cut off in the initial stages of voltage loading and the voltage profile is improved. As a result, less active power is cut off by voltage load shedding. The proposed method is implemented together with the method based on voltage sensitivity to active power in the IEEE 118-bus test network and the New England 39-bus network to test the correctness of the proposed method. The results of the paper show the superiority of the proposed method over the voltage sensitivity method to active power.
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Copyright (c) 2021 EBADOLLAH AMOUZAD MAHDIRAJI, MOJTABA SEDGHI AMIRI, SEYED MOHAMMAD SHARIATMADAR
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