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Power distribution area three-phase power balance device and method based on adaptive adjusting device

A technology for self-adaptive adjustment and power distribution area, applied in the direction of reducing the asymmetry of multi-phase network, eliminating/reducing asymmetry of multi-phase network, etc., it can solve the problems of harm and bad influence, and achieve the reduction of power loss and commutation precise effect

Pending Publication Date: 2017-07-07
ELECTRIC POWER SCI RES INST OF GUIZHOU POWER GRID CO LTD
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Problems solved by technology

[0003] The three-phase unbalance problem is a power quality problem, and its unbalance degree has varying degrees of influence on the low-voltage power supply and distribution system, and will cause many hazards and adverse effects on the transformers in the system, electrical equipment and the line loss of the entire system

Method used

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  • Power distribution area three-phase power balance device and method based on adaptive adjusting device
  • Power distribution area three-phase power balance device and method based on adaptive adjusting device
  • Power distribution area three-phase power balance device and method based on adaptive adjusting device

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Embodiment Construction

[0025] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0026] like Figure 1-3 , a three-phase power balance device for a distribution station area of ​​an adaptive adjustment device, comprising a transformer 1, a main control switch 2, a magnetic induction coil CT3, a reversing switch 4, a single load 5, a mobile phone 6, a PC 7 and GPRS8, Described transformer 1 is connected with electric circuit, and on electric circuit, main control switch 2, magnetic induction coil CT3, reversing switch 4 are connected in parallel; Reversing switch 4 is connected with single load 5; connection; the PC 7 is connected to the main control switch 2 in a wireless manner; the magnetic induction coil CT3 is connected to the main control switch 2 .

[0027] Further, the mobile phone 6 is a smart phone, an APP can be installed on the mobile phone, and the corresponding data can be obtained by connecting the APP with...

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Abstract

The invention discloses a power distribution area three-phase power balance device and method based on an adaptive adjusting device. The three-phase power imbalance problem in power distribution area lines can cause a series of problems that the current of a neutral line is too large, line loss is increased and power loss of a distribution transformer is improved and the like; and by reasonably installing the adaptive adjusting device, the problems above can be solved effectively. The adaptive adjusting device is arranged on a key node in a power distribution area, and a host intelligent main control switch of the device monitors and collects data and issues an execution command to each phase-change switch to balance three-phase power of the power distribution area. The three-phase power balance device and method are mainly characterized in that the adaptive adjusting device is only arranged on the key node, and the host intelligent main control switch in the adaptive adjusting device is in charge of area three-phase voltage and current data acquisition, operation and analysis, executing the balance strategy and managing and scheduling the phase-change switches in the whole area to carry out commutation to realize automatic balancing of the three-phase load current.

Description

technical field [0001] The invention belongs to the field of power system control, and relates to power system data monitoring and collection and power system communication. Background technique [0002] At present, the structure of the distribution network is complex, and the types of power consumption of power users are also diverse. Due to various reasons such as different load types and different power consumption times, serious three-phase imbalances may occur in the distribution transformer area. With the continuous improvement of users' requirements for power quality, the problem of three-phase imbalance in distribution network has become increasingly prominent. [0003] The three-phase unbalance problem is a power quality problem, and its unbalance degree has varying degrees of impact on the low-voltage power supply and distribution system, and will cause many hazards and adverse effects on the transformers in the system, electrical equipment and the line loss of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/26
CPCH02J3/26Y02E40/50
Inventor 王俊融欧家祥宋强杨婧张俊玮张秋雁徐宏伟丛中笑陈建国杨沁晖李鹏程
Owner ELECTRIC POWER SCI RES INST OF GUIZHOU POWER GRID CO LTD
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