The issue of unit commitment is one of the most important economic plans in power system. In modern and traditional power systems, in addition to being economical of the planning, the issue of security in unit operation is also of great importance. Hence power system operation confronts units’ participation and input considering network security constrains. The issue of units’ participation is ...

The impact of human activities on the environment as a consequence of the industrialization process, the rising trend of the price of fossil fuels, and the incentives offered by governments in many countries have driven the development and evolution of renewable energy sources such as wind energy. The optimal selection of on-line units and optimal output levels of committed units for convention...

Current IaaS clouds provide performance guarantee on CPU and memory but no quantitative network performance for VM instances. Our measurements from three production IaaS clouds show that for the VMs with same CPU and memory, or similar pricing, the difference in bandwidth performance can be as much as 16×, which reveals a severe price-performance anomaly due to a lack of pricing for bandwidth g...

Secure and economic operation of the power system is one prime concerns for engineers 21st century. Unit Commitment (UC) represents an enhancement problem controlling operating schedule units in each hour interval with different loads at various technical environmental constraints. UC complex optimization tasks performed by plant regular planning system. Researchers have used a number metaheuri...

This article develops a dynamic model to examine how a firm selling non-durable experience goods can signal its high quality with dynamic spot-pricing or price commitment. Since consumers who buy and use the product will learn the quality of the product, the firm’s early-period price will endogenously determine the fraction of informed consumers in the later period. Without credible price commi...

2 In this paper we propose a stochastic unit commitment model for a power generation company that takes part in an electricity spot market. The relevant feature of this model is its detailed representation of the spot market during a whole week, including seven day-ahead market sessions and the corresponding adjustment market sessions. This representation takes into account the influence that t...