Mobile multi-energy microgrid control method and system

Abstract

The invention discloses a mobile multi-energy microgrid control method and system. The method comprises the following steps of firstly, selecting a storage battery or a diesel engine generator set tobe independently started as a main power supply according to the state of charge (SOC) of the storage battery; after the micro-grid system is started, starting the fuel cell generator set to work, ifthe fuel cell generator set is stable, taking the fuel cell generator set as the main power supply of the micro-grid system, and at the second stage, enabling the photovoltaic cell generator set, thefuel cell generator set, the storage battery and the mutual combined power generation of the photovoltaic cell generator set, the fuel cell generator set and the storage battery to meet the load demand power Pload; and if the fuel cell generator set is not stable, enabling the photovoltaic cell generator set, the storage battery, the diesel engine generator set and the mutual combined power generation of the photovoltaic cell generator set, the storage battery, the diesel engine generator set to meet the load demand power Pload. According to the invention, the advantage of combination of renewable energy and the microgrid system can be realized, and the energy utilization of the movable microgrid is realized.

Description

technical field [0001] The invention relates to the technical field of power supply equipment, in particular to a mobile multi-energy micro-grid control method and system. Background technique [0002] In the utilization of renewable energy power generation, wind power, photovoltaic power generation, etc. are affected by meteorological factors, and have intermittent and random fluctuations, resulting in output power fluctuations, which have a non-negligible negative impact on the grid. Through the design of energy storage The device can stabilize the power fluctuation of renewable energy power generation due to meteorological factors. [0003] Micro-Grid is a small power generation and distribution system, which can be used to realize reliable supply of various energy forms for different loads, and is an effective way to realize active distribution network. Since the DC microgrid system mainly relies on the cooperation of these DC conversion units, when one of the DC conv...

AI Technical Summary

Problems solved by technology

Since the DC microgrid system mainly relies on the cooperation of these DC conversion units, when one of the DC conversion units fails, the entire microgrid system may be unstable or even collapsed.

It can be seen that when there are more DC conversion units in the microgrid system, the failure probability of the microgrid system will increase exponentially, which affects the reliability of the microgrid system.

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