This paper deals with the control and observation of an induction motor using a sliding-mode technique. The authors' aim is to regulate speed square rotor flux magnitude specified references. Assuming that all states are measured, sliding surfaces proposed within framework. Then, stator voltages derived such asymptotically attractive since, in practice, fluxes not usually measurable, observer estimate fluxes. Furthermore, it shown their robust against modeling uncertainties measurement...

Photovoltaic-thermal (PV/T) collectors have gained a lot of attention in recent years due to their substantial advantages as compared ST or PV systems alone and even other non-solar technologies. However, PV/Ts are still not popular industry construction they known major players implementing solar energy installations. In this article, general presentation review applications given. First, different heat extraction media (e.g., air, water, bi-fluid, etc.) hybrid design configurations PV/T...

Urbanization and changes in microclimate have negative impacts on outdoor thermal comfort, making urban design more important. This study aims to improve comfort a local climate zone (LCZ) Dubai using computational fluid dynamics (CFD) methods. evaluates cooling interventions, such as vegetation, architectural, pavement material, Reynolds-averaged Navier–Stokes (RANS) equations the SIMPLE scheme. The results show that combination of interventions affects average temperature between 4.44 °C...

This paper presents findings from the LEOPARD project, part of LEAP-RE program, a joint European Union (EU) and African initiative to advance renewable energy solutions. The study employs simulation-based approach optimize solar-integrated microgrid configurations for rural electrification. project deployed pilot at Songhai agroecological center in Benin address key challenges, including load profile estimation, balancing, diesel dependency reduction. A hybrid methodology integrating...

This paper deals with real-time control of an induction motor based on a digital signal processor (DSP) TMS320C31/40-MHz-based system. A sliding mode controller (SMC) is presented and compared the well-known field orientation input-output linearization techniques. To estimate rotor flux, observer used. Experimental results are given to highlight performances disadvantages these methods respect resistance variations.

Municipal solid waste (MSW) management has become a highly challenging issue for many countries at different levels of development since the growth population and urbanisation resulted in large increase MSW generation. It is difficult to forecast generated its characteristics due non-linear nature system, hence importance introducing artificial intelligence (AI) techniques machine learning (ML) methods. This paper discusses systematic literature review (SLR) on application AI management,...

We give a sufficient condition for the robust stability of discrete system X k+1, = (F + E)X k where perturbation E is bounded (|E| ≤ U). A necessary and derived in case F positive or negative matrix U ∊|F|. The interval matrices also considered. Numerical examples are given illustration.

This paper deals with the pole location of a perturbed matrix A + E. Two perturbation classes are discussed: one structured perturbations |E| ≤ U (a given non-negative matrix) and where only spectral norm ||E|| is given. Sufficient conditions derived for eigenvalues E to be located within circle C(α, r). The case diagonalizable also considered sufficient condition robust stability class discrete systems derived. Numerical examples presented illustration.

The battery state of charge (SOC) is an important parameter the capacity state. It can only be indirectly estimated through measurable variables such as voltage, current and temperature. Accurate estimation SOC one key problems in a management system. A model based on equivalent electrical circuits has been used to describe dynamics. experimentally validated using laboratory test. real time by means two methods: Luenberger observer Kalman Filter. This paper presents comparison between...

Worldwide need for renewable energy sources increases significantly with the drastic negative greenhouse effects of climate change. This study considers a water-cooled hybrid thermo-electric panel (PV/T) which contributes to better harvesting solar energy. A numerical CFD model was developed power generation standard PV as well water-based PV/T system laminated polymer matrix composite (PMC) materials, and user-defined functions (UDFs) were integrated implement exact boundary conditions....

Dynamic characteristics and design methods of standard model-based controllers for inverse response processes are reviewed. The internal model control framework is used to assess performance limitations linear feedback illustrate the tradeoff between robustness errors/uncertainty. A controller with structure commercial proportional−integral−derivartive proposed both set-point tracking load changes; advantages respect lower order clearly pointed out, while negligible differences shown more...

This note deals with the problem of extrema which may occur in step-response a linear system stable real zeros and poles. The author gives simple sufficient condition to avoid using pole-zero configuration corresponding transfer-function.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

This paper presents a new approach to design fuzzy controller for backing up mobile robot. After making the dynamics of robot interpolated by two linear systems, general analysis and method are proposed stabilize it with rules. The is based on converting stability control system an overvaluing A sufficient condition use comparison deduced guarantee To highlight performance technique, simulation results presented.

This paper deals with the control of Pantograph-catenary interaction for high-speed-trains. problem is directly related to electric train current collection quality and efficiency. Our main contributions are derivation new mathematical description in terms a multiple model as an alternative existing time varying ones further proposition LMI law keep contact force between pantograph catenary close desired value various operating conditions.

This review evaluates the existing studies of blue, green, and grey interventions based on field measurements modeling aiming to quantify cooling impact that reduces outdoor heat stress.Based findings from literature, it is concluded water bodies can reduce mean air temperature ( ) by 3.4°C Universal Thermal Climate Index 10.7°C, while natural vegetation improve 2.3°C Physiological Equivalent Temperature (PET) 10.3°C during summer.Vertical greenery systems provide effect up 4°C, whereas...

There are many topologies of solar charging station for electric vehicles, using DC or AC current to charge, which increases the uses DC-DC and DC-AC converters. The main idea this article is reduce number converters in an station. In light vision, work proposes a topology with their managing unit. To end, operating characteristics performance analyzed tested PSIM software.

This paper proposes a simulation results of mathematical model lead-acid batteries, derived the equivalent electric circuit. The has been developed in MATLAB/Simulink. ameliorated Thevenin battery conceders hysteresis phenomena effects on cells behaviour. A method based Extended Kalman Filter (EKF) was designed to estimate model's parameters. Next, an automated test bench set up identify parameter and experimentally verify theoretical analysis simulation. Finally, are compared real...

Urbanization, anthropogenic activities, and social determinants such as poverty literacy rate greatly contribute to heat-related mortalities. The 2003 strong heat wave (Lucifer) in France resulted catastrophic health consequences the region that may be attributed urbanization other activities. Amiens is a medium-sized French city, where average temperature has increased since year 2000. In this study, we evaluated Heat Vulnerability Index (HVI) for extreme days recorded during three years...