In a microgrid

two different control methods are often adopted for interfacing converters

the voltage control and current control method. For the former

it can be used in the connected or islanded mode

but it has slow power control dynamics. In contrast

the current control method has rapid power control dynamic response

but cannot be applied during standalone operation. To cope with these problems

the distributed generator(DG)is connected to the microgrid with two parallel converters. Different from conventional methods

one converter is controlled to regulate voltage while the other to regulate current. In this way

the advantages of both methods are made use of. At the same time

the application of power coupling loop enhances the dynamic characteristics of voltage-controlled converter and DG system. Simulation and experimental results from a single-phase prototype show the validity of the proposed structure and control strategy. This work is supported by National Natural Science Foundation of China(No. 51677129).