Three-phase imbalance comprehensive treatment system and method based on intelligent fusion terminal

Abstract

The invention discloses a three-phase imbalance comprehensive treatment system and method based on an intelligent fusion terminal. The three-phase imbalance comprehensive treatment system comprises the intelligent fusion terminal and a three-phase imbalance comprehensive treatment service box. The three-phase imbalance comprehensive treatment service box internally comprises an incoming cable, a manual adjustment service outgoing line, a phase-change switch automatic adjustment service outgoing line, an incoming isolating switch, a manual adjustment service outgoing line isolating switch, a phase-change switch and a connecting busbar. Based on intelligent fusion terminal control and the phase-change switch, the real-time dynamic adjustment of a three-phase load is realized, convenient user access and adjustment functions are integrated, the system can be used for relatively concentrated access points of users in a 380V/220V system, the access of three or more users at the same point can be realized, and through transformation and comprehensive consideration of new installation, the system has the obvious advantage of centralized standard service access of three-phase imbalance treatment, and the cost of a phase-change switch type three-phase load automatic adjusting device is reduced.

Description

technical field [0001] The invention belongs to the technical field of three-phase unbalance control of electric power, and in particular relates to a system and method for comprehensive control of three-phase unbalance based on an intelligent fusion terminal. Background technique [0002] In terms of ensuring power supply in winter and summer, the uneven access to households in the station area, and the randomness of starting and stopping of high-power loads such as coal-to-electricity and air-conditioning will cause the three-phase unbalance in the distribution transformer station area, resulting in single-phase or two-phase distribution in the station area. Phase overload power outage seriously affects the normal power consumption of heating users. [0003] In terms of quick restoration of power supply and emergency repairs, conventional low-voltage load balancing requires a power outage every time, but the effect of load balancing is still not good. In terms of standard...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a three-phase unbalanced comprehensive treatment system and method based on intelligent fusion terminals, so as to solve the problems in the prior art when the three-phase unbalanced distribution transformer area is unbalanced, the efficiency of manual load equalization is low, and the automatic load equalization occurs. The problem of a large number of line losses

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