Optimal Planning and Operation of RE- DG Units Considering uncertainties in the Distribution System

Nowadays, the optimal planning of Renewable Energy Distributed Generation(RE- Dg)is widely studied. Improving the system's technical parameters besides its economic profit for Distribution Companies (DISCO) are some benefits of implementing RE-DGs in the distribution network. RE-DG resources such as Wind turbines (WT) and Photovoltaic(PV) arrays are highly dependent on climate change, i.e., wind speed and solar irradiation. In this regard, Considering uncertainties of the output power of these resources besides load and electricity price is necessary for DISCO to optimize their operation. In this paper, we first model these uncertainties by the Monte-Carlo method, then find the best location and size of the RE- DG unit to maximize the Disco Profit and technical factors of the IEEE 33-Bus system for ten years plan. We use Particle swarm optimization(PSO) as a tool to find the optimal solution, and the results are discussed.