CALCULATION OF ANNUAL ACTIVE ENERGY LOSSES IN A DISTRIBUTION NETWORK WITH A CONNECTED WIND POWER PLANT

Abstract

Connecting distributed generation to a distribution network affects the load flows in the network, resulting in the redistribution of load flows in the network and thereby changing the amount of active energy losses. At a given moment, depending upon the network consumption and the power injected from a wind power plant into the network, the active power losses can be higher or lower than they were before the wind power plant was connected. However, the aggregate annual energy losses, rather than instantaneous active power losses, are of significance. Therefore, a methodology has been developed for calculating the annual active energy losses in a distribution network in the case of a distributed generation connection, assuming the known chronological consumption and production curves. The corresponding calculations have been performed for an existing distribution network and a wind power plant scheduled to be connected to it.