Energy source internet, hierarchical control system of energy source internet and control method of hierarchical control system

Abstract

The invention provides an energy source internet, a hierarchical control system of the energy source internet and a control method of the hierarchical control system, and belongs to the technical fields of energy source internet control and electricity. The energy source internet comprises an energy source router module, an energy source exchanger module and an energy source subnet module. The hierarchical control system of the energy source internet comprises a data acquisition module, an energy predicating unit, an energy balance judging module, an energy surplus and deficiency judging module, an energy balance control unit, a power state adjusting module and a frequency voltage adjusting module. Through monitoring all distributed power supplies in the energy source internet and local loads reasonably and predicating power generation / load states, and optimizing and coordinating electric energy in the energy source internet by energy source routers, the stability of a distributed power generation system and higher renewable energy source utilization rate are guaranteed to the greatest extent; each equipment in the energy source subnet is controlled by the combination of a multi-agent consistency algorithm and a droop control method, the node frequency of each equipment in the energy source subnet is accordant with the working frequency of a power distribution network, and the voltage of nodes is stable.

Description

technical field [0001] The invention belongs to the field of energy Internet control and electrical technology, and specifically relates to an energy Internet and its hierarchical control system and control method. Background technique [0002] At present, it is generally believed that the full development and utilization of green energy and renewable energy is an effective way to solve the energy crisis, greenhouse effect and environmental pollution. However, the power generation characteristics of renewable energy and the defects of the traditional grid prevent renewable energy from being directly integrated into the grid. In addition, there are still problems such as the power grid is not easy to perceive the subtle changes of the load, cannot track the load changes well, and cannot meet the user's increasingly high requirements for power quality. In order to fully develop and utilize renewable distributed energy sources such as solar energy, wind energy, and biomass nea...

AI Technical Summary

Problems solved by technology

However, due to the two-way flow of energy between the Energy Internet and the distribution network, and the characteristics of intermittent and The coordinated optimization and intelligent control of energy storage equipment and local loads, as well as the connection of the energy Internet with large-capacity distributed new energy to the distribution network, ensure the safe and stable operation of the power grid. In-depth research on energy internet and its control

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