Selection Of Grid Connection Scheme And Stability Analysis Of Jinjia Biomass Power Generation

With the gradual depletion of non-renewable energy,the development and utilization of renewable energy has attracted the attention of all countries in the world.At present,the world’s main renewable energy is mainly water energy,solar energy,wind energy,the development of these energy has been able to effectively complement the current energy development gap,but the diversity of renewable energy is also worth attention.Biomass power generation is to use a variety of biomass waste,forestry industrial waste as combustor,this form of power generation can drive the development of urban environmental protection,so in the power generation industry has a broad prospect for development.First of all,this paper introduces the geographical location and surrounding industries of Jinjia biomass power generation project to show that the site selection is appropriate.Based on the analysis of the development situation of Tieling power grid and the current situation of the surrounding power grid,and from the comprehensive consideration of the regional power grid power supply installed capacity,power balance analysis,load prediction,voltage characteristics and power grid structure,two access system schemes are proposed according to the biomass power generation installed capacity of Jinjia.The power flow calculation,short circuit capacity calculation and economy analysis are carried out for the two schemes.After the power flow and short circuit calculation meet the operation requirements of the power grid,the technical and economic comparison of the scheme is made comprehensively,and the optimal access scheme is selected as the access scheme of the biomass power generation project in Jinjia of Tieling Changtu to the regional power grid.Secondly,based on the selected optimal access system scheme,this paper carried out the design of the electrical primary,electrical secondary,relay protection,dispatching automation,system communication and remote control,etc.of the booster station of Jinjia biomass power generation project,and carried out the reasonable selection and configuration of relevant electrical equipment.Finally,this paper,after considering the biomass power plant connected to the electricity grid will have serious impact on stability of regional power grid system synchronization,so u sing the Chinese version of BPA transient stability program(version 5.0)conditions for the simulation calculation on the stability of synchronization,look at the current various possible failure think of space truss structure mode,will lead to the unstability of the system unit,thus further prove that the selected access system solutions to meet the requirements of the power grid transient stability,validate the rationality of the selected access system solutions.