Publication Type:

Conference Paper


Advancements in Power and Energy (TAP Energy), 2015 International Conference on, IEEE (2015)



Accession Number:




air pollution emission, Atmospheric measurements, backward forward sweep power flow, Conferences, curtailed load, Density estimation robust algorithm, DER, Distributed power generation, free microgrid market model, fuel cost, Generators, liberalized market model, load dispatching, load flow, Market, MGCC, Microgrid, microgrid central controller, Microgrids, on-line benefit optimization, operational cost minimization, OPF, optimal power dispatch problem, overall execution time, overall profit maximization, particle swarm optimisation, particle swarm optimization, Pollution measurement, power balance, power markets, power system control, power system economics, PSO, Reactive power, time varying acceleration coefficient, upstream grid power trading, voltage deviation


In this paper, an efficient online energy management problem for a liberalized microgrid market model is formulated. Online optimal power dispatch problem solved by particle swarm optimization with time varying acceleration co-efficient (PSO-TVAC) and backward-forward sweep power flow is used to manage the microgrid sources and loads, considering fuel and emission costs of distributed energy resources (DERs), hourly profits, load curtailment and buying/selling of power from/to the main grid. Instantaneous measured data of demand and renewable energy are used to optimally dispatch the conventional DERs, trade the grid power and curtail the selected loads to satisfy the power balance in the online mode. The effectiveness of the formulated problem and the proposed method is investigated on the residential feeder of the LV benchmark radial microgrid in terms of fuel cost, emission, voltage deviation, curtailed load, upstream grid power traded and overall execution time. Two different objectives of the microgrid central controller (MGCC) based on different levels of participation in the open market are compared viz. ;overall profit maximization ; and operational cost minimization.

Cite this Research Publication

V. Mohan, Singh, J. G., Ongsakul, W., and Nair, S. G., “Online benefit optimization in a liberalized/free microgrid market model”, in Advancements in Power and Energy (TAP Energy), 2015 International Conference on, 2015.