Original scientific paper Economic Load Dispatch problem has been previously solved successfully with swarm techniques. However, power systems with complex behaviours still await a robust algorithm to be developed for their optimization more precisely. Economic Dispatch problem with constraints such as generator limits, total power demand, ramp rate limits and prohibited operating zones, makes ...

0957-4174/$ see front matter 2011 Elsevier Ltd. A doi:10.1016/j.eswa.2011.04.151 ⇑ Corresponding author. Tel.: +98 711 7264121; fax E-mail addresses: [email protected] (T. Niknam Firouzi), [email protected] (H.D. Mojarrad). Reduce fossil fuel resources; increasing established new power generation unit costs; and ever growing demand for electric energy necessitate optimal economic dispatc...

BACKGROUND Creating appropriately-sized, lethal isotherms during cryoablation of renal tumors is critical in order to achieve sufficiently-sized zones of cell death. To ensure adequate cell death in target treatment locations, surgeons must carefully select the type, size, location, and number of probes to be used, as well as various probe operating parameters. OBJECTIVE The current study inv...

In this paper, a generalized buck-boost Z-H converter based on switched inductors is proposed. This structure consists of a set of series connected switched-inductor cells. The voltage conversion ratio of the proposed structure is adjusted by changing the number of cells and the duty cycle. Like the conventional Z-H converter, the shoot-through switching state and the diode before LC network ar...

©International Anesthesia Research Society. Unauthorized Use Prohibited. Learning Objectives: I. Are parents useful (in the operating room)? a. To discuss the developmental differences in child development b. To review the incidence of postanesthesia behavioral disturbances c. To determine the benefit of parental presence in the operating room II. Will anesthesia make my child stupid? a. To det...

The optimal power flow (OPF) is a key tool in the planning and operation of systems, aims to optimize operational costs involved production transport energy by adjusting control variables meet operational, economic, environmental constraints. To achieve this goal, successful implementation an expeditious reliable optimization algorithm crucial. end, paper proposes scrutinizes novel fuzzy adapti...

Dynamic economic load dispatch (DELD), which determines the best generation scheduling for different power plants during next 24 hours in order to meet electricity demand as well minimize total energy cost, is a highly complex non-linear and non-convex problem. This study proposes an efficient modified teaching-learning-based optimization algorithm, called MTLBO, effectively solve DELD problem ...

one of the significant strategies of the power systems is economic dispatch (ed) problem, which is defined as the optimal generation of power units to produce energy at the lowest cost by fulfilling the demand within several limits. the undeniable impacts of ramp rate limits, valve loading, prohibited operating zone, spinning reserve and multi-fuel option on the economic dispatch of practical p...