Optimal size of Distributed Generation to minimize distribution loss using Dynamic Programming

This paper first analyses the impact of Distributed Generations (DG) on distribution system loss and voltage profile. Distribution loss depends on various factors such as: the number and locations of DG connections, injected DG powers, distribution system configuration etc. To study the impact of injected DG powers and locations on the distribution loss, a 15-bus radial distribution system is modeled using PSCAD and simulations are carried with varying DG power injections and locations. Next, the optimum sizes of DG are evaluated which gives the minimum loss satisfying various other system constraints. Dynamic Programming approach is used to solve this optimization problem and the subroutine is developed in MATLAB.