Electric energy router

Abstract

The invention belongs to the field of distributed renewable power utilization in smart grids, and relates to a power router, which includes a control unit, a wireless module, a signal detection and power metering module, a switch array and a router port. The router port includes a power port and a load port, and the power port includes a dedicated power port for mains power and multiple common power ports; the control unit detects the power collected by the power signal detection port and the power metering port or is connected to the common power port through a wireless module. According to the power quality information of the load signal and the power consumption characteristics of the load connected to the load port collected through the load signal detection and the power metering port or obtained through the wireless module, the power supply and the load are optimally matched, and the matching is realized through the switch array Connection or switching between individual power sources and loads. The invention can realize grid-connected management of various distributed power sources and optimal matching with loads.

Description

technical field [0001] The invention belongs to the field of utilization of distributed renewable power sources in smart grids, and relates to a control device capable of realizing grid-connected management of distributed power sources and optimal matching with loads. Background technique [0002] In the future smart grid, there will be a large number of distributed renewable energy sources (photovoltaic, wind power, fuel cells, etc.), which will be used to save energy, reduce emissions, and alleviate peak power consumption. However, there are still the following problems to be solved urgently in the utilization of distributed energy: 1) The existence of a large number of distributed renewable energy causes complex two-way power flow between the large power grid and various distributed power sources, which affects the operation of the power grid. 2) Due to the influence of regions and weather, distributed power generation has obvious uncertainties in power supply capacity an...

AI Technical Summary

Problems solved by technology

However, there are still the following problems to be solved urgently in the utilization of distributed energy: 1) The existence of a large number of distributed renewable energy causes complex two-way power flow between the large power grid and various distributed power sources, which affects the operation of the power grid. 2) Distributed power generation has obvious uncertainties in power supply capacity and power quality due to the influence of regions and weather, and existing technologies and equipment cannot guarantee that these power energies will be fully utilized

On the one hand, a large amount of distributed electric energy is directly connected to the grid without passing through the "electrical access node" stipulated in the IEEE 1547 and IEC 61850 standards, which brings many difficulties to the monitoring and management of the grid. Traditional protection and metering devices also do not support On the other hand, the existing grid-connected inverters are relatively weak in terms of information and control functions, resulting in the inability of unified and effective management of distributed energy

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