Distribution network system and method based on energy router

Abstract

The invention relates to a novel electric distribution network system based on energy routers. The novel electric distribution network system comprises an electric network, a heat supply network, a fuel gas network, a distribution transformer, household type energy routers, a core type energy router, distributed photovoltaic electric generation systems, distributed wind-powered electric generation systems, a centralized photovoltaic electric generation system, a centralized wind-powered electric generation system and loads. According to the novel electric distribution network system disclosed by the invention, the on-the-spot access of a user-side distributed type electric source is convenient through the household type energy routers, so that the purpose of being 'plug and play' is realized; the core type energy router is used as a control main body of the system, so that the core type energy router is responsible for accessing centralized new energy, and can also perform real-time control on each household type energy router, the heat supply network and the fuel gas network according to requirements, so that paralleling operation and islanding operation of the system are realized; besides, the electric distribution network structure combines the electric network, the heat supply network and the fuel gas network, the electric network is used as a main part, and the electric network, the heat supply network and the fuel gas network are mutually complemented, therefore, the diversity and economic property of energy utilization, the control flexibility and the operating stability of the system are greatly improved, and the effects of clean energy acceptance, energy conservation and emission reduction are realized.

Description

technical field [0001] The invention belongs to the technical field of new energy, and in particular relates to a novel distribution network system based on an energy router. Background technique [0002] With the shortage of fossil energy, the continuous growth of electricity demand and the openness of the electricity market are driving the grid towards efficient, flexible, intelligent and sustainable development to adapt to future technological needs. Sustainability is the basic feature of the future power grid, and its essence is the large-scale access and application of distributed power, especially renewable energy. However, a large number of distributed power sources will have a wide impact on the distribution network, mainly in the following aspects: the increased complexity of the relay protection strategy affects the reliability of the power supply of the network, the problem of power quality is prominent, and it is not conducive to the power supply side and demand ...

AI Technical Summary

Problems solved by technology

However, a large number of distributed power sources will have a wide impact on the distribution network, mainly in the following aspects: the increased complexity of the relay protection strategy affects the reliability of the power supply of the network, the problem of power quality is prominent, and it is not conducive to the power supply side and demand Side management and poor economy, etc.

At present, although the continuous maturity of micro-grid technology provides a solution for distributed power access, it cannot be widely used for two reasons: first, energy storage technology still has bottlenecks, high costs, and cannot store electricity on a large scale; It is because the distributed power supply access system is not convenient enough, and the control is more complicated

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