Grid Design Of Power Planning In The Guangdong-Guangxi Cooperation Zone

Power grid construction is an important part of urban infrastructure construction,and meet the people’s growing power demand,it is necessary to plan and design outdated power grids reasonably and efficiently.On the other hand,in the context of my country’s overall regional development strategy,strengthening regional cooperation and expanding regional exchanges and common development have become new ideas.At present,Guangdong and Guangxi provinces(regions)are actively exploring the road to urban power grid transformation.The purpose is to break the restrictions of administrative divisions and establish a "Guangdong-Guangxi cooperation special pilot zone" at the junction of the two provinces(regions).Planning is an important part of urban hardware facilities planning.It not only takes into account the rapid development of the region’s electricity load demand,but also takes into account the nature of different land use in the planned area to ensure the outgoing line and load margin while reducing the planning investment cost.At present,most of my country’s traditional power grid planning schemes are single-point planning,failing to plan regional power grid rectification measures in accordance with the actual needs of the district power grid,resulting in the phenomenon of "headache and foot pain".It is not possible to dig out enough basic planning data from the current electricity consumption and future development trends.Therefore,when urban expansion and large industrial projects are implemented,it is easy to have insufficient resource allocation and waste of investment.In consideration of urban development There are also insufficient foresight and lack of flexibility in power consumption adjustments.Based on this,this thesis uses grid-based power planning and design methods to give full play to the structural characteristics of the grid concept of "large and small,divide and conquer",starting from the nature of the land use in different areas of the planning area,and combining the prospective load forecasting method,To complete the formulation of the plan for power grid transformation and expansion in the test area.First,divide the power distribution grid based on the geographical boundaries of the region,traffic conditions,land use,etc.;then,based on the dividedgrids,perform the long-term prediction of the power supply load,and infer the overall predicted load of the planning area based on the grid load prediction results,Allocate resources in the overall situation,and put forward the basic construction requirements of new substations and line allocation schemes based on the forecast results.Finally,the proposed grid planning scheme is checked and checked based on load indicators and density indicators,and then the planning effect analysis and investment amount estimation are carried out to provide a basis for the actual overall planning of the power grid in the test area.Through the implementation of this power grid planning project,in the long-term year,all indicators of the regional power grid will exceed the construction target of "first-class distribution network",and the stability of power supply will be significantly improved.From the economic perspective,the improvement of grid facilities will attract more With the presence of many enterprises,the income from electricity sales in the whole society will increase significantly with the progress of the urban planning process;on the other hand,the improvement of power supply stability means that the user’s outage time during the same period will be reduced,which can greatly reduce the economic loss caused by the outage;Finally,due to the significantly reduced line loss rate,the power supply cost is less than before,which can also be used as a long-term benefit.