To support the flexible aggregations of multiple resources, such as the distributed power, controllable load and energy storage under the novel power system, to implement the interaction between power grid and the aggregations, a virtual power plant system which can support dynamic aggregation of equipment is designed and implemented. The proposed virtual equipment packaging technology can eliminate the differences between equipment, and establish virtual units in a unified measurement standard. The equipment-level power generation forecasting and multi-load forecasting engines ensure the prediction accuracy and the flexibility of aggregations. The solution of the cloud-edge collaboration achieves the vertical aggregation of resources. Through deployment verification, the system can dynamically aggregate multiple types of resources to participate in grid interaction, and effectively improve the accuracy of new energy generation power prediction and load prediction, achieving flexible resource efficiency, precision, and flexible regulation，further ensuring the safe and stable operation of the power grid.