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Graphic regarding the evolution of load and voltage when the diesel power generator connects with the uninterruptable power supply out of the power scheme
Source publication
In this paper we study the load variation for an electrical consumer when it remains powered by an emergency power supply through an uninterruptable power supply due to a circuit failure and the way that the load varies when the main and backup power supply comes on. The study was conducted due to the fact that when the main power supply tripped, t...
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Citations
... The load demand has a dynamic nature as it varies in accordance with varying energy consumption trends [8]. The inherent variabilities of the load demand may create complexities in modern power system operation. ...
This paper proposes a system model for optimal dispatch of the energy and reserve capacity considering uncertain load demand and unsteady power generation. This implicates uncertainty in managing the power demand along with the consideration of utility, user and environmental objectives. The model takes into consideration a day-ahead electricity market that involves the varying power demand bids and generates a required amount of energy in addition with reserve capacity. The lost opportunity cost is also considered and incorporated within the context of expected load not served. Then, the effects of combined and separate dispatching the energy and reserve are investigated. The nonlinear cost curves have been addressed by optimizing the objective function using robust optimization technique. Finally, various cases in accordance with underlying parameters have been considered in order to conduct and evaluate numerical results. Simulation results show the effectiveness of proposed scheduling model in terms of reduced cost and system stability.
