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It is an uncertain problem how to determine the locations and the injection capacities of Photovoltaic Power generation in distribution network. The paper presents a new method to confirm it. Determine the initial configuration point according to the “2/3 Principle”, and determine the locations and the injection capacity of Photovoltaic Power generation in distribution network based an objective function of minimum loss. In the lowvoltage distribution system, the active power has a greater impact to the photovoltaic power generation system grid connection voltage than the reactive power. On the condition of the voltage of end node stability, take the photovoltaic power generation as research object, and put forward to the adjustment magnitude of the active power of different photovoltaic grid connected points, realize the matching active power injection and the active power regulation connection with a reasonable proportion based on different node needs. The IEEE 33 node distribution system is used to verify the method, the power loss drops by 64%, the voltage of end node is improved by 9.6% on average. The method has a good effect on reduction of the power loss as well as improvement of the voltage of end node. It realizes the effective operation of the photovoltaic system gridconnected.

Photovoltaic Power Generation Low-Voltage Side Grid Connection Optimization Based on Active Power Adjustment