Electric energy router networking-based power routing method and device

Abstract

The invention discloses an electric energy router networking-based power routing method and device. The method includes the following steps that: the weight of each line is obtained according to a loss increase quantity generated by transmission target power, and paths enabling minimum loss between loads and a power source are calculated through a shortest path algorithm; the load nodes in a powergrid are sorted from large to small, power supplies and transmission paths which enable minimum loss are searched out from all the loads through a path search method, and the power supply output distribution and power transmission path distribution of the entire network can be formed; the power flow distribution of the entire network is obtained according to a whole-network power routing method,day-ahead predictive load and the output of a renewable distributed power source; and power transmission paths are adjusted according to difference values, so that power real-time balance required bythe power grid can be met. The method directly routes power without relying on an energy storage unit, and the power transmission capability of the power grid can be improved, and maximum voltage offset in the network can be reduced. Compared with other path selection methods, the strategy is adopted in a routing process enables low loss.

Description

technical field [0001] The invention relates to the technical field of smart grids, in particular to a power routing method and device based on power router networking. Background technique [0002] With the depletion of traditional fossil fuels and the enhancement of environmental awareness, more and more renewable distributed power sources are connected to the grid through power routers. Distributed power generation is mainly connected to the main grid in the form of a micro grid, which can run with an island or parallel to the main grid. In the AC microgrid, in addition to controlling the voltage level when connecting to the distributed power supply, it is also necessary to ensure the synchronization of the distributed power generation units, while in the DC microgrid, only the voltage needs to be adjusted. On the other hand, the output of most distributed power sources is electric energy in the form of DC, and most household appliances also use DC power. Reducing interm...

AI Technical Summary

Problems solved by technology

However, this method requires a large-capacity energy storage unit to achieve synchronous decoupling of energy transmission, which is difficult to achieve in terms of technology and cost at the current stage, and there is loss in the process of charging and discharging the energy storage unit

In addition, adopting this method requires a large-scale transformation of the existing power grid, and it is necessary to add energy storage units to each node in the network

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