Research of the impact of distribution generation on distribution network loss

The size and location of distributed generation (DG) plays a significant role in minimizing power losses in distribution systems. This paper presents an improved forward-backward sweep method to minimize network losses in a distribution feeder by optimizing DG model in terms of size, location and operating mode. The proposed methods have been tested on a practical distribution network of multi-node pure chain style. Test results presented have proven that up to 76% of power loss can be reduced with a DG of optimal size, located at optimal place in the feeder, generating both active and reactive power. Therefore the voltage of transmission can be supported and improved obviously.