Power supply capability of distribution network

as an important indicator in reflecting operation condition of the network and carrying capability

is of great significance for system safety

while its shorting coming is the lack of economy consideration of the system.Therefore

starting from taking into account system safety and economy and considering the influence of load type and distribution as well as voltage requirement to the power supply capability of the network

the power supply capability analysis model of the distribution network considering the system profit and reactive power compensation is proposed and simulation as well as verification is performed.It is shown by the study that

compared to the traditional method

although the actual power supply capability of the system obtained by the proposed method has slight reduction

yet economy of the system is improved remarkably

and can also be able to get the safe operation requirement of the network.The power supply analysis of distribution in this paper supplies a kind of solution which exchange system economy with redundancy safe space.