An Adaptive Management Interface Device of Grid-Connected DGs Based on Wide-Time Scale

With the increasing demand for distributed generators (DGs), the grid-connection of DGs has become an important issue. In order to connect to gird friendly, and effectively control and manage DGs, in the paper, an adaptive protecting and monitoring management interface device of grid-connected DGs is proposed. Firstly, based on the operation of DGs, the management device can adaptively complete the functions of protection, monitoring and communication management in accordance with wide time scale and frequency. In the actual testing, the proposed strategy can not only enhance the timeliness of data utilization and the accuracy of control, but also improve the security and stability of DGs and other devices. In addition, the solution can optimize the allocation of power and the fault-tolerant protection capability of the device.