Instituto Tecnológico de Morelia

About: Instituto Tecnológico de Morelia is a education organization based out in Morelia, Mexico. It is known for research contribution in the topics: Electric power system & AC power. The organization has 498 authors who have published 572 publications receiving 4600 citations.

Offshore Wind Energy Generation: Control, Protection, and Integration to Electrical Systems

Abstract: The offshore wind sector’s trend towards larger turbines, bigger wind farm projects and greater distance to shore has a critical impact on grid connection requirements for offshore wind power plants. This important reference sets out the fundamentals and latest innovations in electrical systems and control strategies deployed in offshore electricity grids for wind power integration. Includes: All current and emerging technologies for offshore wind integration and trends in energy storage systems, fault limiters, superconducting cables and gas-insulated transformers Protection of offshore wind farms illustrating numerous system integration and protection challenges through case studies Modelling of doubly-fed induction generators (DFIG) and full-converter wind turbines structures together with an explanation of the smart grid concept in the context of wind farms Comprehensive material on power electronic equipment employed in wind turbines with emphasis on enabling technologies (HVDC, STATCOM) to facilitate the connection and compensation of large-scale onshore and offshore wind farms Worked examples and case studies to help understand the dynamic interaction between HVDC links and offshore wind generation Concise description of the voltage source converter topologies, control and operation for offshore wind farm applications Companion website containing simulation models of the cases discussed throughout Equipping electrical engineers for the engineering challenges in utility-scale offshore wind farms, this is an essential resource for power system and connection code designers and pratitioners dealing with integration of wind generation and the modelling and control of wind turbines. It will also provide high-level support to academic researchers and advanced students in power and renewable energy as well as technical and research staff in transmission and distribution system operators and in wind turbine and electrical equipment manufacturers.

Renewable energy resources short-term scheduling and dynamic network reconfiguration for sustainable energy consumption

Abstract: This paper proposes a two-phase approach for optimal short-term operational scheduling with intermittent renewable energy resources (RES) in an active distribution system. The first phase determines the amounts of purchased power from the market and the unit status of distributed generation (DG) and feeds the data into the second phase, a real-time scheduling coordination with hourly network reconfiguration. The two-phase proposed approach is applied to a case study of a sixteen-bus test system that uses synthetic data from renewable power generators and forecasts local user demands with a sampling time of five minutes.

Multiphase Modeling of the Fluidynamics of Bottom Argon Bubbling during Ladle Operations

Abstract: The objective of the present study is the optimization of the ladle stirring operation through a multiphase mathematical model and an analogue physical model. Four cases were considered using one and two argon injection inlets with different configuration, where the multiphase steel/slag/argon system was simulated numerically in Three-Dimensional Unsteady State conditions and a water/oil/air system for the physical model was considered. The Volume of Fluid (VOF) model was employed to simulate numerically the interaction among the phases considering the surface tensions. The simulation results were evaluated by a fluidynamics analysis of the systems and by a numerical prediction of three important operation parameters: mixing time, lining refractory wear and slag opening. The implementation of two argon inlets did not reduce the mixing time; however, the slag layer opening was decreased in a 30%, and the refractory wear in terms of the skin friction coefficient value was also decreased in a 63%. These results confirm that it is imperative to consider, for numerical simulation, the three phases present during ladle operations.

Damped wave equation with a critical nonlinearity

Abstract: We study large time asymptotics of small solutions to the Cauchy problem for nonlinear damped wave equations with a critical nonlinearity { ∂ 2 t u + ∂ t u - Δu + λu 1+2 n = 0, x ∈ R n , t > 0, u(0, x) = eu 0 (x), ∂ t u(0, x) = eu 1 (x), x ∈ R n , where e > 0, and space dimensions n = 1, 2,3. Assume that the initial data uo ∈ H δ,0 n H 0,δ , u 1 e H δ-1,0 n H -1,δ , where δ > n 2, weighted Sobolev spaces are H l,m = {Φ e L2; m l Φ(x)∥ L 2 = √1 + x 2 . Also we suppose that λθ 2/n > 0, ∫u 0 (x) dx > 0, where Then we prove that there exists a positive e 0 such that the Cauchy problem above has a unique global solution u ∈ C ([0, oo); H δ,0 ) satisfying the time decay property ∥u(t)-eθG(t,x)e -φ(t) ∥ Lp ≤ Ce 1+2 n g -1-n 2 (t) -n 2(1-1/p) for all t > 0, 1 ≤ p ≤ ∞, where e ∈ (0, e 0 ].