Evaluation of Distributed Generation Access to Distribution Network Considering Reactive Power Optimization

The operation of distribution network will be greatly affected when distributed generation (DG) is accessed to the network. The degree of influence is closely related to the location and capacity of distributed generation. Therefore, it is of great significance to evaluate the consequence of installing distributed generation to distribution network. This research was carried out from the perspective of reactive power optimization, and the evaluation was performed by super-efficiency data envelopment analysis (DEA). The research is expected to reduce the active power loss of distribution network, to reduce the voltage offset and to make the program more economical. The proposed method could objectively sort the different schemes of DG access to distribution network. Finally, an example was given to show that the proposed method can rank the efficiency values of the evaluation scheme and select the optimal scheme, which is feasible in engineering application.