Distributed hybrid storage electric energy quality adjusting device and integrated cloud control platform thereof

Abstract

The invention discloses a distributed hybrid storage electric energy quality adjusting device and an integrated cloud control platform thereof. The distributed hybrid storage electric energy quality adjusting device has the advantages of a common distributed electric energy grid energy storage device and a light storage integrated device, and has the functions of reactive compensation, harmonic suppression and voltage support. All the distributed hybrid storage electric energy quality adjusting devices are combined through the integrated cloud control platform to serve as a centralized mixed storage electric energy quality adjusting device to be controlled and operated, meanwhile, the platform can also work according to different branch load conditions, the distributed hybrid storage electric energy quality adjusting devices on the intelligent control branches adjust the power flow of each branch, and performs reasoning and solving on complex faults, thereby achieving optimal control of energy.

Description

technical field [0001] The invention belongs to the technical field of smart grids, and in particular relates to a distributed hybrid storage power quality adjustment device and an integrated cloud control platform. Background technique [0002] Facing the ever-increasing energy demand and the huge challenge of global energy conservation and emission reduction, it has become an inevitable choice to vigorously develop grid energy storage technology, and it is also the development trend of smart distribution network. [0003] At present, the conventional centralized energy storage device stores a large amount of energy, but its initial investment is large, the cost recovery period is long, the floor area is large, and the later maintenance cost is too high. Although the general distributed grid energy storage device occupies a small area and has a small initial investment, it has a single function and can only simply meet the basic needs of users for time-of-use electricity pr...

AI Technical Summary

Problems solved by technology

[0003] At present, the conventional centralized energy storage device stores a large amount of energy, but its initial investment is large, the cost recovery period is long, the floor area is large, and the later maintenance cost is too high

Although the general distributed grid energy storage device occupies a small area and has a small initial investment, it has a single function and can only simply meet the basic needs of users for time-of-use electricity prices and peak-shaving and valley-filling, without reactive power compensation, harmonic suppression, etc. function, and cannot intelligently adjust the grid power flow according to the load condition

[0004] At present, although the existing distributed photovoltaic-storage integrated devices can realize peak-shaving and valley-filling functions while using photovoltaic power generation, such devices lack a unified dispatching system. Although individual devices have industrial monitoring cloud platforms, this platform can only Realize simple data collection and monitoring functions, can not estimate the power consumption of the grid, can not intelligently dispatch and control the bus flow, and cannot maximize the use of photovoltaic advantages, resulting in waste of energy

[0005] The current uninterrupted voltage devices, such as UPS / DVR, need full-capacity redundant backup in order to provide uninterrupted power supply for the power grid. The equipment costs are high, the floor area is large, and the energy utilization rate is low.

In response to this problem, although there are voltage compensation devices on the market that take power from itself or another independent bus, none of these devices can guarantee the power quality of the power-taking side, that is, voltage interruptions may also occur on the power-taking side. This brings great hidden dangers to user loads, especially to voltage-sensitive equipment

Images