Passive imbalance management module structure

Abstract

The invention relates to a passive unbalance control module structure, which includes a mounting frame, a knife melting switch, a vacuum contactor, a control board, a reactor, a capacitor and connecting terminals, and is characterized in that the mounting frame includes a fixed steel channel and an angle steel , the fixed steel channel is on the bottom, the angle steel is on the top, the capacitor and the reactor are installed on the fixed channel steel together, the knife melting switch, vacuum contactor and control board are all installed on the angle steel, the knife melting switch, vacuum contactor , control board, reactor, capacitor and connection terminals are connected in series; this passive unbalance control module structure is more stable, small in size, simple in components, wide in use and convenient in maintenance, etc., which is different from traditional active Compared with the passive imbalance management module, this module is more reliable, more stable and more cost-effective.

Description

technical field [0001] The invention relates to a passive imbalance control module structure, in particular to the further improvement of the active imbalance control module. Background technique [0002] With the continuous growth of my country's economy, the electricity load has increased rapidly, and the user's electricity demand has also increased significantly. This has brought more serious problems to my country's power grid, which is already short of electricity: the three-phase current in the power system of the distribution network Balance has strict requirements; the number of loads in the distribution network is increasing, and they are connected to the power system without detailed layout and distribution, resulting in an unbalanced three-phase current in the power system, which requires imbalance management The module can solve this situation and meet the needs of the distribution network. [0003] However, a large number of active imbalance management modules ha...

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Problems solved by technology

[0002] With the continuous growth of my country's economy, the electricity load has increased rapidly, and the user's electricity demand has also increased significantly. This has brought more serious problems to my country's power grid, which is already short of electricity: the three-phase current in the power system of the distribution network Balance has strict requirements; the number of loads in the distribution network is increasing, and they are connected to the power system without detailed layout and distribution, resulting in an unbalanced three-phase current in the power system, which requires imbalance management The module can solve this situation and meet the needs of the distribution network

[0003] However, a large number of active imbalance management modules have begun to emerge. Although it solves the problem of current imbalance in the power system, the problems of the active imbalance management module also follow, so there are still many shortcomings as follows : (1) The active passive unbalance control module uses IGBT thyristors, which are relatively expensive to purchase; (2) The stability of the IGBT is insufficient and easily damaged; (3) Other electronic components installed inside (4) The module has high temperature requirements for the installation environment; (5) The installation capacity is single, and multiple modules are used in combination, which occupies a large space; (6) There are many components and assembly steps inside the module , resulting in difficult installation, requiring professional guidance and operation; (7) When a module fails, it is difficult to overhaul on-site due to the large number of components; (8) When the module needs to replace components, it is inconvenient to disassemble; (9) Module detection The point is hidden, and the shell needs to be disassembled to detect; (10) Operation and debugging require professional knowledge personnel, and casual operation is easy to damage the module

[0004] There are many problems mentioned above in the existing active imbalance management module, which cause unnecessary losses to the user. Therefore, the above problems can be solved for the passive imbalance management module

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