Wind-light hydrogen multi-energy integration system

Abstract

The invention discloses a wind-light hydrogen multi-energy integration system. The system comprises an integrated control box. A first DC / DC conversion unit, a second DC / DC conversion unit, a third DC / DC conversion unit, an AC / DC conversion unit, and a DC / AC conversion unit are arranged in the integrated control box. Photovoltaic power generation, wind power generation, fuel cell power generation,and hydrogen production energy power generation access as inputs. Output interfaces of the first DC / DC conversion unit, the second DC / DC conversion unit, the third DC / DC conversion unit and the AC / DCconversion unit are connected in parallel through a direct current bus and then are taken as the input of the DC / AC conversion unit, and output of the DC / AC conversion unit is used as power output ofthe integration system. The system couples the inputs of multiple energy sources. After direct current input, a direct current bus droop control method is adopted, and then an alternating current isoutput through DC / AC inversion and is used for load power generation. The system integrates multiple energy inputs, uniform management is achieved, a response speed of the system is increased, and control difficulty and system cost are reduced.

Description

technical field [0001] The invention relates to the technical field of energy systems, in particular to a wind-solar-hydrogen multi-energy integrated system. Background technique [0002] At this stage, new energy systems, hydrogen fuel cell systems and electrochemical energy storage systems are all independent energy systems, and the independent systems realize unified coordinated control and management through the energy manager EMS, and thus form AC or DC Microgrid system. In the existing system, the electrochemical energy storage system, photovoltaic system and backup power such as diesel / gas generators operate independently, and the parallel AC mode is adopted, the system efficiency is low, the control is difficult, the response time is slow, and the cost is high. At the same time, electrochemical energy storage has problems such as large environmental impact and low lifespan. Contents of the invention [0003] The purpose of the present invention is to provide a wi...

AI Technical Summary

Problems solved by technology

In the existing system, the electrochemical energy storage system, photovoltaic system and backup power such as diesel / gas generators operate independently, and the parallel AC mode is adopted, the system efficiency is low, the control is difficult, the response time is slow, and the cost is high. At the same time, electrochemical energy storage has problems such as large environmental impact and low lifespan.

Images