Research On Black-Start Scheme Of Gas Turbine Based On Hybrid Energy Storage

Black start,as the first link in the rapid restoration of power supply after the power system is paralyzed,has become a research hotspot in the direction of power system automation in recent years.How to restore the power supply in key areas in a short time and protect important loads has become an urgent problem to be solved.As a gas turbine power station,our plant has the advantages of fast start-up speed,less auxiliary equipment,and strong load regulation ability.It is the best black-start power source except for hydro-power units,in most areas,gas turbine are responsible for peak shaving and emergency response.Consider the advancement of energy storage and power electronics technology.Relevant departments are also carrying out research on the application of energy storage technology in the black start and frequency modulation of gas turbines on the production and operation management of gas power generation enterprises in the article on gas power generation technology innovation in 2020.For this reason,under the traditional scheme of using diesel engine as black start power supply,this paper studies hybrid energy storage system as an innovative scheme for black start power supply.The main work includes the following aspects.1.Based on PG9171 E gas turbine operating conditions,design two types of black start power supply schemes for diesel generator sets and energy storage systems,and then conduct a comparative analysis of the two types of schemes in terms of economy,environmental protection,stability,and response speed.2.After comparing and selecting energy storage schemes,analyze the defects of a single energy storage black start scheme black start solution.Propose a scheme of using a capacitor and battery hybrid energy storage system as a black start power source,around this plan,in order to solve the battery cycle life,impulse current damage to the battery,and deal with the mixed energy storage power distribution,charging and discharging problems.Design the hybrid energy storage system architecture composed of super capacitors,batteries,converters and other components.On the basis of completing the design of the hybrid energy storage black start scheme,use matlab/simu Link to build a hybrid energy storage system simulation model to verify the voltage output curve.Verify the reliability of the power solution.3.Combined with the Black start project of Dongguan Shenzhen Energy Zhangyang Power Co.,Ltd.to be put into operation in January 2021...