One kind of hybrid network control apparatus and a control method of the photovoltaic power generation system, and

The invention relates to a hybrid control device for a grid-connected photovoltaic power generating system. The hybrid control device comprises at least two groups of voltage sampling circuits, at least three groups of current sampling circuits, a double-channel analog/digital (A/D) conversion module, a driving circuit, a protection circuit, a control unit, a display unit, a three-channel A/D conversion module, an add and subtract operation circuit and a harmonic and reactive current detection module. The control method of the hybrid control device comprises the following steps of: analyzing a working mode, setting a conversion condition, adopting a control strategy, and performing switching detection. The device and the method have the advantages that: the control accuracy of a converter is improved, the failure rate is reduced, the device has a simple structure, the method is feasible, and the utilization rate of the whole grid-connected photovoltaic power generating system can be improved.