A Control of Homeostasis for Three-Phase Load in Power System

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Abstract:

With the increasing asymmetry of the three-phase load, the problem of three-phase imbalance in power system is becoming more serious every day. Asymmetrical three-phase voltages and currents affect the safe and stable operation of the power system.The main direction for solving the problem of unbalanced three-phase power system is reactive power compensation. But in present paper, we demonstrate a new method. First, we load the single-phase load into the phase with smallest current and keep oscillation. Then, considering that system stability requires as small as possible imbalance, so we treat line current as criterion and adjust part load into system phases to reduce the neutral current to a value less action. Thus we can achieve homeostasis of three-phase load. We also have realized it by simulation.

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298-302

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February 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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