Study On Line-loss Analysis And Loss Reduction Measure Of Low-voltage Distribution Network In Shaoguan

It is a strategic mission for our national economy and social mid-long term development to build a resource-conserving and environment-friendly society.Saving energy and low-carbon development are very important and pressing tasks for global countries,especially for developing countries.For power supply enterprises,transmission substation and distribution energy loss are main power supply costs.In recent time,with the increasing of electricity need and the development of ‘Four-reaching-user-Service'in villages,the line loss of medium and low voltage electicity grid is getting bigger and bigger.How to decrease the line loss of medium and low voltage electicity grid is a key sally port for power supply enterprises to realize the targets for saving energy and reducing emissions.Presently,China has assessment indicators for management of medium and low voltage electicity grid line loss,as well as relevant theoretical calculation and different measures to decrease line loss,but at time of greeting the new era of smart power grids,there is no standardized and mature decreasing power grid line loss management solution about how to connect scientific management skills with advanced and intelligent technical skills from both strategic and tactical perspectives,while how to move forward on the base.The thesis solves the problem of man.made factors' disturbance to 1ine loss management indexes through setting up scientific management system,creative point-wise calculation method applying to medium and low voltage intelligent grid.The thesis also provides some measures to decrease line Joss substantially,offers reference on medium and low voltage intelligent grid line loss management for power supply enterprises,and promotes the level of medium and low voltage electricity grid line loss management in our country.In recent years,with the rapid development of Shaoguan economy,the problems that affecting line-loss has also been relevantly increasing.Shaoguan city,located in the north of Guangdong P.V,most of which covered by rural and mountainous area,due to lack of power supply net work and much medium voltage distribution network line within their respective jurisdictions,plus long distant the power supply,affect of small hydropower and residential users irregular access,production of electricity is now seriously affected,the power supply area residents and user complaints occurred frequently,which also has negative effects to the enterprise.This Thesis,took Shao guan power supply company as an example with detailed analysis,practice with data for more than a year's time,combining with the characteristics of rural low voltage distribution network,operation management and theoretical line loss calculation method,etc,conducted a more thorough and comprehensive research.Summarizeda specific improvement method for line-loss reduction of low voltage distribution network,an practical improvement measures are put forward,aim at reduce the line loss,verified the relevant measure and proposal to be effectible and feasible.