Wind-fire coupling multi-energy system based on hydrogen energy

Abstract

The invention provides a wind-fire coupling multi-energy system based on hydrogen energy. The system comprises a wind power generation system, a thermal power generation system, a water electrolysis hydrogen production system, a fuel cell system and a hydrogen storage device, wherein the wind power generation system is connected with the water electrolysis hydrogen production system, when the peakshaving capacity of the thermal power generation system reaches the lower limit, surplus electric energy is used for supplying power to the water electrolysis hydrogen production system, the water electrolysis hydrogen production system is used for preparing hydrogen, storing the hydrogen in the hydrogen storage device, feeding the hydrogen into a fuel cell when the total power generation power is smaller than a load demand, and transmitting the hydrogen to a user when the total power generation power meets the load demand, when the total power generation power is smaller than the load demand, the fuel cell works to compensate the power shortage, excessive electric energy generated by a wind generating set electrolyzes water to produce hydrogen, the fuel cell system assists in power generation, and the deep peak regulation limit and economy of a thermal generator set are improved.

Description

technical field [0001] The invention relates to a wind-fire coupled multi-energy system based on hydrogen energy. Background technique [0002] From the perspective of my country's energy transformation trend, after years of rapid development, my country ranks first in the world in terms of installed capacity and total power generation. [0003] However, with the rapid increase of installed capacity, the problem of wind power accommodation will be a long-term dynamic problem. In general, the lack of effective demand for local electric energy leads to a long-term imbalance between supply and demand, and the intermittent and fluctuating characteristics of new energy power sources make grid-connected consumption seriously insufficient, which are the main reasons for the high "abandoned wind power". In 2019, 16.9 billion kWh of curtailed wind power in the whole network mainly occurred in the "Three North" regions, accounting for more than 80% of the country's curtailed wind pow...

AI Technical Summary

Problems solved by technology

[0003] However, with the rapid increase of installed capacity, the problem of wind power accommodation will be a long-standing dynamic problem

In general, the lack of effective demand for local electric energy leads to a long-term imbalance between supply and demand, and the intermittent and fluctuating characteristics of new energy power sources make grid-connected consumption seriously insufficient, which are the main reasons for the high "abandoned wind power"

Images