Active and reactive power control of grid connected distributed generation system

摘要

This paper presents work related to management of active and reactive power exchange between a distributed generation (DG) source and the grid to which it is connected; for improved utilization of electricity generated by the DG source such as solar energy. This is based on the recently introduced Availability Based Tariff (ABT) concept for the consumer loads, where conventional power grid is available. In situations, when, the grid power is available at high cost during high electrical tariff, the locally generated power from solar is utilized for consumer loads or even excess power can be fed back to the grid in order to earn financial benefits. On the other hand, during low electrical tariff, power generated is utilized for consumer loads or to charge batteries. Such system can also be utilized as Ancillary services for reactive power compensation, voltage control, loss compensation, energy imbalance etc.