The evaluation of the maximum hosting capacity of distributed photovoltaic (PV) integration into distribution networks is of great guiding significance for the planning and operation of distribution networks. Therefore

a "bottom-up" and "top-down" evaluation model and method for the maximum hosting capacity (MHC) of distributed PV in distribution networks is proposed. Firstly

based on the prediction results of the distributed photovoltaic spatial- temporal distribution

the independent hosting capacity of each transformer and line equipment is assessed using a piecewise exploration method. Then

the independent hosting capacities of various equipment

along with the PV application capacity and the already connected capacity

are aggregated to determine the overall hosting capacity step by step in a "bottom-up" manner. Finally

taking into account the current status of distributed PV (i. e.

PV application capacity and already connected capacity) and its development trend

the overall hosting capacity is decomposed step by step and equipment by equipment in a "top-down" manner. Compared with the evaluation results obtained using the related "top-down" standard method

the proposed method can quickly verify distributed PV integration schemes

facilitating the rational development of distributed PV.