Research On Distributed Photovoltaic Consumptive Ability In Distribution Network In Yuhang

Distributed photovoltaic power generation is not affected by oil,coal and other energy,the lack of green environmental protection,convenient control,physical condition and other factors restricting the advantages,is the power supply system for power distribution network is complementary and alternative sources of power,is very important in the future will become the.Although the construction cost is relatively high,but with the rapid development of photovoltaic technology,photovoltaic construction costs have showed a rapid decline,and photovoltaic power generation does not require an energy input,measured by economic long-term economy,photovoltaic power generation capacity has been close to power.According to the forecast of domestic and foreign authorities,photovoltaic power generation accounted for the proportion of total electricity supply has shown a rapid growth trend,in the power generation mode of future power system,photovoltaic power generation will play a more important role.At present,due to the lack of in-depth study of the impact on the grid and countermeasures and other aspects of the operation characteristics,distributed photovoltaic grid PV power plant,has seriously hindered the rapid development of photovoltaic power generation,and seriously affected in large capacity under the condition of the volt grid distribution network consumptive capacityThis paper makes an in-depth study on the Yuhang in distribution network in the future years photovoltaic consumptive capacity,the main work is as follows:(1)the new energy power consumptive ability of the analysis by Yuhang area to the combination of macro load and consumption growth in Yuhang area,using the growth rate method and the difference method of the local consumptive ability evaluation of short and long term.(2)through the analysis of the microstructure surrounding the substation load structure,selection of new energy power construction form suitable for the local maximum and minimum load,and according to the daily load curve of each substation reference years,were fitted with the new energy power output curve,so as to directly display the consumptive ability boundary,so as to provide the new energy power plants around the substation the installed capacity of scientific construction interval.(3)according to the capacity,operation status,peripheral load and surrounding PV development conditions of the area of the Yuhang,the author puts forward the suggestions on the construction of distributed PV power in three regions of the Yuhang region.