Abstract
In view of the actual situation of three-phase load unbalance in distribution power system, a three-phase load balancing compensation method for three-phase-and-three-wire systems in distribution network is proposed, and load model is established. Then I have deduced the mathematical model of three-phase load compensation in distribution network, and analyzed the energy loss of the two kinds of compensation method about the power supply and the dispersion compensation on the load spot. It is verified that the load end compensation can contribute more to the reduction of energy loss, under the premise of ensuring active load, possess more economical, this method has important significance for the solution in research on reactive power compensation optimization of three phase unbalanced distribution power network.
Highlights
The scale of electrical energy production is very large, and the transmission of electrical energy mainly depends on line transmission
The situation of the unbalanced three-phase load of the distribution network is increasingly intensified, and the gap between the three-phase currents is significantly increased, this seriously reduces the quality of electrical energy
According to the characteristics of the distribution network, reactive power optimization compensation is made for three-phase unbalanced load in distribution network
Summary
The scale of electrical energy production is very large, and the transmission of electrical energy mainly depends on line transmission. The situation of the unbalanced three-phase load of the distribution network is increasingly intensified, and the gap between the three-phase currents is significantly increased, this seriously reduces the quality of electrical energy. The unbalance of three-phase load will result in the of reduction the utilization ratio of a power distribution network and the extreme unbalance of three-phase voltage and current. According to the characteristics of the distribution network, reactive power optimization compensation is made for three-phase unbalanced load in distribution network. Whether it is from the perspective of power quality and power grid operation, or engineering needs, it is of great significance [1,2,3].
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