Research On Energy Coordination Optimization Of Offshore Platform Power System Based On Energy Hub

Mighty ocean is rich of resources.And the exploitation rate of the ocean is low.So there has unlimited possibilities of the future energy strategy in the ocean.Marine engineering is an important means to achieve sustainable development of energy in China.As an important part of marine engineering,offshore platform is of great significance for the development of marine energy resources to ensure that the power system can be operated efficiently,economically and environmentally at every moment of working hours.At present,the research on energy coordination of offshore platform is still insufficient,therefore,there sre still many problems need to be solved.Firstly,this paper introduces the current situation of the research on offshore platform power system and its focus of each stage.It is pointed out that the control of carbon dioxide emission and increase the energy efficiency are two current research hotspots.Then,this paper give an outline of the concept about the popular integrated energy system and the research status at home and abroad.The Energy Hub model in the integrated energy system is considered to model the offshore platform power system.After fully considering the actual model of offshore platform power system,the Energy Hub model of offshore platform power system under two different operation modes is established.Then,according to the actual cases of a platform in a certain sea area,the energy coordination analysis of the two models is carried out.The results show that the optimized operation mode is more economical and environmentally friendly than the traditional mode of operation.Secondly,in order to reduce the carbon dioxide emissions of offshore platform power system and realize the clean operation of power grid,considering the price,scope and other issues,CO2 pre-combustion unit and CO2 post-combustion unit are intrtoduced in this article.CO,pre-combustion unit is used to control the input form of energy.It can prevent the generation of carbon dioxide gas;CO2 post-processing unit is mainly to collect fuel combustion generated carbon dioxide,reducing carbon dioxide emissions.It is proved that the method has obvious effect on carbon dioxide emission from offshore platform.Thirdly,in order to increase the energy efficiency of offshore platform power system and increase the reliability of power supply,hydrogen is added as another energy form of the offshore platform power system.Hydrogen,as a kind of clean energy source with zero emission and high calorific value,has been attracted extensive attentions in recent years.CO2 pre-combustion unit's product is hydrogen.The product could be used as fuel with outside purchased hydrogen.The data show that various forms of energy input can not only increase the reliability of power supply,but also reduce the use of low calorific value gas.achieve the overall energy-saving effect.With the continuous deepening of the research on offshore platform power system and the continuous expansion of the Energy Hub model,the research on energy coordinated optimization of offshore platform power system will be more in-depth.In the face of more abundant clean energy and more complex energy network,in order to solve the energy coordination in power system more reasonably,effectively and economically,we need a deeper and further research.