Electric energy router

Abstract

The invention belongs to the field of the distribution-type renewable power supply utilization in an intelligent power grid and relates to an electric energy router which comprises a control unit, a wireless module, a signal detection and electric energy metering module, a switch array and a router port, wherein the router port comprises a power supply port and a load port; the power supply port comprises a power supply port dedicated for the mains supply and a plurality of common power supply ports; the control unit carries out the optimal matching on the power supply and the load according to the electric energy quality information of a power supply connected with a common power supply port and the electricity utilization characteristics of the load connected with the load port, wherein the electric energy quality information is collected by a signal detection and electric energy metering port of the power supply or is obtained by a wireless module, and the electricity utilization characteristics are collected by a load signal detection and electric energy metering port or is obtained by the wireless module; and matched power supplies and loads can be connected or switched through the switch array. According to the electric energy router, the on-grid management of various distribution-type power supplies and the optimal load matching can be realized.

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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