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Based on the improved genetic algorithm, the mathematical model of reactive power optimization for electric power distribution system integrating with distributed generation (DG) is proposed in this paper. The active power output of DG and the reactive power compensation position are added as control variable to analyze the influence to the reactive power optimization when DG connected to the system...
The single three-phase hybrid power system has the characteristic that the network structure is very complex. Based on signal injection method, a synthesized fault location method aimed at this characteristic is proposed in this paper. The method can fix fault segment with DC signal and fault position with AC signal. In this way, not only avoid the wrong judgment of fault branch because of the distribute...
Single-phase distribution approach is a new low-voltage power distribution technology. It is significant for reducing distribution line losses, improving power supply reliability and assuring voltage quality. RMS current method is adapted. In a typical residential community, distribution transformer loss, low voltage line loss and investment in equipment single-phase and three-phase distribution methods...
Single-phase distribution approach is one of new low-voltage power distribution technologies. It is significant for reducing distribution line losses, improving power supply reliability and assuring voltage quality. RMS current method is adapted in this paper. In a typical residential community, distribution transformer loss, low voltage line loss and investment in equipment single-phase and three-phase...
A kind of transmission line temperature on-line monitoring system based on ZigBee is presented in this paper. The principles, standards and application advantage of ZigBee wireless communications technology are discussed. The design of hardware and software are discussed detailedly. The monitoring system works steadily, its size is small, cost is low, and the power consumption is very low. This system...
High voltage circuit breaker (HVCB) is one of the most important equipments for controlling and operating in power system. In order to increase the reliability and safety of power system, it is necessary to carry on online monitoring and failure diagnosis on HVCB. However there are many difficulties in HVCB failure diagnosis. Based on fuzzy diagnosis theory, a fault diagnosis model of high voltage...
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