Abstract:
Aiming at the problem of photovoltaic(PV)consumption in large-scale urban distribution network in the future, the power supply region within the urban area of Beijing is taken as an example,and the practice of urban distribution network planning considering distributed PV consumption is carried out. Firstly, according to the planning constraints, the network planning method considering distributed PV consumption as well as transformation schemes with priority order are proposed; secondly,the planning practice is taking out, the network current situation of the distribution network is combed, the photovoltaic consumption is analyzed, combined with the prediction of both load and PV install capacity, the network planning of the city in 2030 is proposed,and the transformation scheme of protection and establishment of emergency repairing service network system is given. Finally, this paper summarizes the planning suggestions of large-scale urban distribution network considering PV consumption. For the distribution network planning of large cities, this paper has reference value in the following aspects, influence of PV on voltage and power supply reliability, the transformation scheme of protection after PV accessing and the adaptability of conventional network structure.